From b3312f86061a0d887233f5068cbc335aa2612bed Mon Sep 17 00:00:00 2001
From: Jonathan Bauer
Date: Wed, 6 May 2015 18:13:52 +0200
Subject: current state: udev disk detection still not done! also improved
 module structure and code commentary

---
 testModule/hooks/cmdline/enable-sysrq.sh           |  2 +
 testModule/hooks/cmdline/expand-kcl-ip.sh          | 20 +++++
 testModule/hooks/cmdline/mark-root-device.sh       |  9 ++
 testModule/hooks/mount/mount-root-device.sh        |  4 +
 testModule/hooks/pre-mount/mount-qcow.sh           | 49 +++++++++++
 testModule/hooks/pre-pivot/mount-tmp.sh            | 38 +++++++++
 .../hooks/pre-udev/load-dnbd3-nbd-modules.sh       | 32 +++++++
 testModule/module-setup.sh                         | 63 ++++++++++----
 testModule/scripts/prepare-disks                   | 98 ++++++++++++++++++++++
 testModule/scripts/setup-qcow2                     | 41 +++++----
 testModule/udev/70-openslx-disk.rules              |  8 ++
 11 files changed, 335 insertions(+), 29 deletions(-)
 create mode 100755 testModule/hooks/cmdline/enable-sysrq.sh
 create mode 100755 testModule/hooks/cmdline/expand-kcl-ip.sh
 create mode 100755 testModule/hooks/cmdline/mark-root-device.sh
 create mode 100755 testModule/hooks/mount/mount-root-device.sh
 create mode 100755 testModule/hooks/pre-mount/mount-qcow.sh
 create mode 100755 testModule/hooks/pre-pivot/mount-tmp.sh
 create mode 100755 testModule/hooks/pre-udev/load-dnbd3-nbd-modules.sh
 create mode 100755 testModule/scripts/prepare-disks
 create mode 100644 testModule/udev/70-openslx-disk.rules

(limited to 'testModule')

diff --git a/testModule/hooks/cmdline/enable-sysrq.sh b/testModule/hooks/cmdline/enable-sysrq.sh
new file mode 100755
index 00000000..f779aa7a
--- /dev/null
+++ b/testModule/hooks/cmdline/enable-sysrq.sh
@@ -0,0 +1,2 @@
+# enables magic sysrq keys
+echo 1 > /proc/sys/kernel/sysrq
diff --git a/testModule/hooks/cmdline/expand-kcl-ip.sh b/testModule/hooks/cmdline/expand-kcl-ip.sh
new file mode 100755
index 00000000..8be1c718
--- /dev/null
+++ b/testModule/hooks/cmdline/expand-kcl-ip.sh
@@ -0,0 +1,20 @@
+# fakes the cmdline to fix the ip parsing when using
+# syslinux's IPAPPEND 1 mask
+[ -d /fake ] || mkdir /fake
+
+# need to be a tmpfs for the hack to work
+mount -t tmpfs tmpfs /fake
+
+# append ':hiwi:eth0:none' to the 'ip=' parameter we got
+# from syslinux's IPAPPEND 1
+sed 's/\(ip=\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}:\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}:\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}:\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\)/\1:hiwi:eno1:none/' /proc/cmdline > /fake/cmdline
+
+# bind mount it. Can we trust mount return codes here?
+# # if so, we should check what we get in $?
+mount -o bind /fake/cmdline /proc/cmdline
+
+# check if it worked
+if ! grep 'hiwi:eth0:none' /proc/cmdline; then
+	command -v warn >/dev/null || . /lib/dracut-lib.sh
+	warn 'Haxing cmdline did not work :( sad pandaz...'
+fi
diff --git a/testModule/hooks/cmdline/mark-root-device.sh b/testModule/hooks/cmdline/mark-root-device.sh
new file mode 100755
index 00000000..b7282521
--- /dev/null
+++ b/testModule/hooks/cmdline/mark-root-device.sh
@@ -0,0 +1,9 @@
+# set rootok and root as dracut expects them to be set by
+# the module preparing the root filesystem.
+#
+# Once the root filesystem is mounted per dnbd3 and
+# exported as qcow2 per nbd, /dev/root will be a symlink
+# to /dev/nbd0 as this is then our rootfs-device
+rootok=1
+root=block:/dev/root
+
diff --git a/testModule/hooks/mount/mount-root-device.sh b/testModule/hooks/mount/mount-root-device.sh
new file mode 100755
index 00000000..d02f9002
--- /dev/null
+++ b/testModule/hooks/mount/mount-root-device.sh
@@ -0,0 +1,4 @@
+# this rudimentary script just mounts the rootfs device that was symlinked to
+# /dev/root to dracut's $NEWROOT (usually /sysroot).
+
+mount /dev/root $NEWROOT
diff --git a/testModule/hooks/pre-mount/mount-qcow.sh b/testModule/hooks/pre-mount/mount-qcow.sh
new file mode 100755
index 00000000..d70492bf
--- /dev/null
+++ b/testModule/hooks/pre-mount/mount-qcow.sh
@@ -0,0 +1,49 @@
+###############################################################################
+# CHECKS
+#
+
+SETUP_ROOTFS_SCRIPT="/sbin/setup-qcow2"
+
+if [ ! -e "${SETUP_ROOTFS_SCRIPT}" ]; then
+	warn "No such file of directory: ${SETUP_ROOTFS_SCRIPT}"
+	emergency_shell -n "Error in $0"
+	return 1
+fi
+
+if [ ! -x "${SETUP_ROOTFS_SCRIPT}" ]; then
+	warn "Cannot execute: ${SETUP_ROOTFS_SCRIPT}"
+	emergency_shell -n "Error in $0"
+	return 1
+fi
+
+#
+# END CHECKS
+###############################################################################
+
+###############################################################################
+# MAIN CODE
+#
+
+# ok, let's source the setup script
+if ! . ${SETUP_ROOTFS_SCRIPT} ; then
+	warn "Could not source: ${SETUP_ROOTFS_SCRIPT}"
+	emergency_shell -n "Error in $0"
+	return 1
+fi
+
+# just go over the functions in the right order ;-)
+for fun in connect_dnbd3 create_qcow export_qcow connect_qcow; do
+	if ! $fun; then
+		# something failed, drop a shell for debugging
+		warn "'$fun' failed with: $?"
+		emergency_shell -n "Error in $fun"
+		return 1
+	fi
+done
+
+# all good, we are done
+return 0
+
+#
+# END MAIN CODE
+###############################################################################
diff --git a/testModule/hooks/pre-pivot/mount-tmp.sh b/testModule/hooks/pre-pivot/mount-tmp.sh
new file mode 100755
index 00000000..152c844e
--- /dev/null
+++ b/testModule/hooks/pre-pivot/mount-tmp.sh
@@ -0,0 +1,38 @@
+# This script only checks if we found a usable partition for the
+# future /tmp. The discovery of that partition is done by udev during
+# the initqueue. If a valid partition is found (either GPT with the label
+# OPENSLX_TMP or MBR with the type 0x44) its path will be written to
+# /tmp/openslx.tmpdisk
+OPENSLX_TMP_DISK_FLAG="/tmp/openslx.tmpdisk"
+
+if [ ! -e "$OPENSLX_TMP_DISK_FLAG" ]; then
+	warn "'$OPENSLX_TMP_DISK_FLAG' not found!"
+	warn "Systemd will manage $NEWROOT/tmp on its own."
+	# no partition for the future /tmp found, just
+	# let systemd manage it then (probably a tmpfs)
+	return 1
+fi
+
+# in /tmp/openslx.disk.tmp is the name of the device
+# to mount as /tmp in the real system
+# meaning we need to mount it to /sysroot/tmp here.
+
+OPENSLX_TMP_DISK_DEV="$(cat $OPENSLX_TMP_DISK_FLAG)"
+
+# sanity check: is the content a block device?
+if [ ! -b "$OPENSLX_TMP_DISK_DEV" ]; then
+	warn "'$OPENSLX_TMP_DISK_DEV' appears not to be a block device!"
+	warn "Systemd will manage $NEWROOT/tmp on its own."
+	return 1
+fi
+
+# all good, keep on
+if ! mount -t auto "$OPENSLX_TMP_DISK_DEV" /sysroot/tmp; then
+	# something else went wrong :(
+	warn "Mounting '$OPENSLX_TMP_DISK_DEV' to '/sysroot/tmp' failed with: $!"
+	warn "Systemd will manage $NEWROOT/tmp on its own."
+	return 1
+fi
+
+# still here? mount worked wohoo
+return 0
diff --git a/testModule/hooks/pre-udev/load-dnbd3-nbd-modules.sh b/testModule/hooks/pre-udev/load-dnbd3-nbd-modules.sh
new file mode 100755
index 00000000..29f9f210
--- /dev/null
+++ b/testModule/hooks/pre-udev/load-dnbd3-nbd-modules.sh
@@ -0,0 +1,32 @@
+# include dracut-lib.sh to use 'warn'
+command -v warn >/dev/null || . /lib/dracut-lib.sh
+
+NBD_MOD_PATH="/usr/lib/modules/current/extra/nbd.ko"
+DNBD3_MOD_PATH="/usr/lib/modules/current/extra/dnbd3.ko"
+
+# do we actually have our modules?
+if [ ! -e "${NBD_MOD_PATH}" ]; then
+	warn "No such file of directory: ${NBD_MOD_PATH}"
+	emergency_shell -n "Error in $0"
+	return 1
+fi
+if [ ! -e "${DNBD3_MOD_PATH}" ]; then
+	warn "No such file of directory: ${DNBD3_MOD_PATH}"
+	emergency_shell -n "Error in $0"
+	return 1
+fi
+
+# load the kernel modules for dnbd3 and nbd
+if ! insmod "${DNBD3_MOD_PATH}"; then
+	warn "Failed to load DNBD3 kernel module..."
+	emergency_shell -n "Error in $0"
+	return 1
+fi
+
+if ! insmod "${NBD_MOD_PATH}"; then
+	warn "Failed to load NBD kernel module..."
+	emergency_shell -n "Error in $0"
+	return 1
+fi
+
+return 0
diff --git a/testModule/module-setup.sh b/testModule/module-setup.sh
index 839e5deb..efd79cf1 100644
--- a/testModule/module-setup.sh
+++ b/testModule/module-setup.sh
@@ -42,32 +42,67 @@ installkernel() {
 }
 
 install() {
-    # cause we need reboots
-    inst "$moddir/scripts/r" /usr/bin/r
-    # Needed to mount remote dnbd3 filesystem.
-    inst "$moddir/binaries/dnbd3-client" /usr/bin/dnbd3-client
+    ### BINARIES
+    #
+    # busybox: cause we want lightweight tools
     inst "$moddir/binaries/busybox" /usr/bin/busybox
-    # A generic wrapper program to prepend a "@" to each process spawned by
-    # given nested programs.
+    # dnbd3-client: needed to mount remote dnbd3 filesystem.
+    inst "$moddir/binaries/dnbd3-client" /usr/bin/dnbd3-client
+    # A generic wrapper program to prepend a "@" to each process
+    # spawned by given nested programs.
     inst "$moddir/binaries/systemd-preserve-process-marker" \
         /usr/bin/systemd-preserve-process-marker
 
     # NOTE: These modules are build again Kernel: 3.10.0-229.1.2.el7.x86_64
+    # TODO: build these in check() !
     inst "$moddir/kernel_modules/dnbd3.ko" \
         /usr/lib/modules/current/extra/dnbd3.ko
     inst "$moddir/kernel_modules/nbd.ko" \
         /usr/lib/modules/current/extra/nbd.ko
 
-    # NOTE: Priority has to be lower than the network cmdline parsing hooks
-    # since we have to modify the some kernel parameter before.
-    inst_hook cmdline 00 "$moddir/hooks/cmdline.sh"
-    inst_hook cmdline 90 "$moddir/hooks/nbd-cmdline.sh"
-    inst_hook pre-udev 00 "$moddir/hooks/pre-udev.sh"
-    inst_hook pre-mount 10 "$moddir/hooks/pre-mount.sh"
-    inst_hook mount 10 "$moddir/hooks/mount.sh"
+    ### HOOKS
+    ## HOOK cmdline
+    # enables sysrq-shortcuts
+    inst_hook cmdline 00 "$moddir/hooks/cmdline/enable-sysrq.sh"
+
+    # expands the ip parameter in the kernel command line to
+    # make it dracut-compatible
+    # TODO: dracut still parses this incorrectly...
+    inst_hook cmdline 10 "$moddir/hooks/cmdline/expand-kcl-ip.sh"
+
+    # sets environment variables to tell dracut which device
+    # holds the future root filesystem
+    inst_hook cmdline 90 "$moddir/hooks/cmdline/mark-root-device.sh"
+
+    ## HOOK pre-udev
+    # loads the dnbd3/nbd kernel modules
+    inst_hook pre-udev 00 "$moddir/hooks/pre-udev/load-dnbd3-nbd-modules.sh"
+
+    ## HOOK pre-mount
+    # this is the main hook where all the magic is triggered
+    inst_hook pre-mount 10 "$moddir/hooks/pre-mount/mount-qcow.sh"
+
+    ## HOOK mount
+    # this simply mounts the prepared /dev/root to $NEWROOT
+    # aka "the dracut way"
+    inst_hook mount 10 "$moddir/hooks/mount/mount-root-device.sh"
+
+    ## HOOK pre-pivot
+    # this checks whether we found a partition suitable for
+    # the future /tmp and if so, mounts it
+    inst_hook pre-pivot 00 "$moddir/hooks/pre-pivot/mount-tmp.sh"
+
+    ### SCRIPTS
+    # the main magic script containing all the functions needed
+    # to prepare the qcow2-based root filesystem
     inst "$moddir/scripts/setup-qcow2" /sbin/setup-qcow2
-    inst "$moddir/scripts/setup-nbdroot" /sbin/setup-nbdroot
 
+    # the script triggered by udev upon finding the right partitions
+    inst "$moddir/scripts/prepare-disks" /sbin/prepare-disks
+
+    # udev rules detecting 44, 45, 46 partitions and running
+    # 'prepare-disks' to do then format/mount/use them
+    inst "$moddir/udev/70-openslx-disk.rules" /etc/udev/rules.d/70-openslx-disk.rules
 
     # Debugging Uncomment this version if you need some useful debugging tools
     # in your iniramfs.
diff --git a/testModule/scripts/prepare-disks b/testModule/scripts/prepare-disks
new file mode 100755
index 00000000..28113cc7
--- /dev/null
+++ b/testModule/scripts/prepare-disks
@@ -0,0 +1,98 @@
+#!/bin/bash
+###############################################################################
+# GLOBALS
+#
+
+declare -rg FLAG="/tmp/openslx.disks"
+declare -rg OPENSLX_SYS_MOUNT="/opt/openslx/system"
+
+#
+# END GLOBALS
+###############################################################################
+
+###############################################################################
+# FUNCTION DEFINITIONS
+#
+# helper to mount the OPENSLX_SYS partition to /opt/openslx/system
+# Usage: mount_sys_part <path_to_sys_partition>
+mount_sys_part() {
+	if [ ! -b "$1" ]; then
+		warn "'$1' is not a block device?"
+		echo "!block: $1" >> /tmp/openslx.disks.log
+		return 1
+	fi
+
+	local OPENSLX_SYS_DEVICE="$1"
+	mkdir -p ${OPENSLX_SYS_MOUNT}
+	if ! mount -t auto "${OPENSLX_SYS_DEVICE}" "${OPENSLX_SYS_MOUNT}"; then
+		warn "Mounting '${OPENSLX_SYS_DEVICE}' to '${OPENSLX_SYS_MOUNT}' failed."
+		echo "mount phail" >> /tmp/openslx.disks.log
+		return 1
+	fi
+	echo "ZOMG" >> /tmp/openslx.disks.log
+	return 0
+
+}
+#
+# END FUNCTION DEFINITIONS
+###############################################################################
+
+###############################################################################
+# MAIN CODE
+#
+
+command -v warn >/dev/null || . /lib/dracut-lib.sh
+
+# let check the arguments
+if [ "$#" -ne 2 ]; then
+	warn "'$0' need 2 arguments: '$0 [OPENSLX_SYS|OPENSLX_TMP] <dev_path>'"
+	echo "Not enough args!" >> /tmp/openslx.disks.log
+	exit 1
+fi
+# $1 sane?
+if [ "x$1" != "xOPENSLX_SYS" ] && [ "x$1" != "xOPENSLX_TMP" ]; then
+	warn "First arg needs to be either 'OPENSLX_SYS' or 'OPENSLX_TMP'."
+	warn "Given: $1"
+	echo "OPENSLX? $1" >> /tmp/openslx.disks.log
+	exit 1
+fi
+# $2 sane?
+if [ ! -b "/dev/$2" ]; then
+	warn "Second arg appears not to be a block device!"
+	echo "block? $2" >> /tmp/openslx.disks.log
+	exit 1
+fi
+
+# ok all seems well
+PART_TYPE="$1"
+PART_DEV="/dev/$2"
+
+# lets check if we are already running
+INSTANCES="$(grep "$PART_TYPE" "$FLAG" | busybox wc -l)"
+if [ "$INSTANCES" -ge 1 ]; then
+	# uhoh we are not alone!
+	warn "'$0' already running for $PART_TYPE ... ignoring."
+	echo "already running for $PART_TYPE" >> /tmp/openslx.disks.log
+	exit 1
+fi
+
+# now comes the funny part. We write our pid to $FLAG in order to make sure
+# we are the only instance of this script running.
+echo "$PART_TYPE.$$" >> "$FLAG"
+
+# if we are still here, then we can go on and process the partition
+echo "Processing: $PART_TYPE -> $PART_DEV" >> /tmp/openslx.disks.log
+
+if [ "$PART_TYPE" = "OPENSLX_TMP" ]; then
+	# mark it for later mounting!
+	echo "$PART_DEV" > /tmp/openslx.disk.tmp
+	exit 0
+fi
+if [ "$PART_TYPE" = "OPENSLX_SYS" ]; then
+	# mount it now, since qemu-nbd needs it asap!
+	exit $(mount_sys_part "$PART_DEV")
+fi
+
+#
+# END MAIN CODE
+###############################################################################
diff --git a/testModule/scripts/setup-qcow2 b/testModule/scripts/setup-qcow2
index ba1ef6b1..b14ccd87 100755
--- a/testModule/scripts/setup-qcow2
+++ b/testModule/scripts/setup-qcow2
@@ -2,6 +2,7 @@
 
 # dracut-lib to use debugging functions
 command -v warn >/dev/null || . /lib/dracut-lib.sh
+command -v emergency_shell >/dev/null || . /lib/dracut-lib.sh
 
 ###############################################################################
 # GLOBALS
@@ -12,6 +13,7 @@ declare -rg DNBD3_DEVICE="/dev/dnbd0"
 declare -rg DNBD3_SERVER="132.230.4.1"
 declare -rg DNBD3_IMAGE="stage4/joe/centos7"
 declare -rg DNBD3_RID="4"
+declare -rg QCOW_CONTAINER="/opt/openslx/system/system.qcow2"
 #
 # END GLOBALS
 ###############################################################################
@@ -49,18 +51,18 @@ connect_dnbd3() {
 
 # helper to create the qcow2 container file using
 # DNBD3_DEVICE as the base of the filesystem
-# /run/test.qcow2 as the writable file
+# QCOW_CONTAINER as the writable file
 # (our future rootfs)
 create_qcow() {
 	# check if we already created the qcow2-container
-	[ -e /run/test.qcow2 ] && return 0
+	[ -e "$QCOW_CONTAINER" ] && return 0
 
 	# we did not, let's create it
 	if ! qemu-img create -f qcow2 -o \
-		backing_file="$DNBD3_DEVICE",backing_fmt=qcow2 /run/test.qcow2; then
+		backing_file="$DNBD3_DEVICE",backing_fmt=qcow2 "$QCOW_CONTAINER"; then
 		warn "Failed to create qcow2-Container from $DNBD3_DEVICE"
 		emergency_shell -n "Error in $0"
-		rm -f -- /run/test.qcow2
+		rm -f -- "$QCOW_CONTAINER"
 		return 1
 	fi
 	return 0
@@ -75,7 +77,7 @@ export_qcow() {
 	fi
 	# since we use the wrapper, we need a little more logic to see if it runs
 	/usr/bin/systemd-preserve-process-marker \
-		/usr/bin/qemu-nbd -t -p 2000 /run/test.qcow2 &
+		/usr/bin/qemu-nbd -t -p 2000 "$QCOW_CONTAINER" &
 	# the wrapper returns 255 if the qemu-nbd binary is missing
 	local qemu_nbd_pid="$!"
 	for i in 0.5 1 2; do
@@ -102,17 +104,26 @@ export_qcow() {
 	# fallback
 	return 1
 }
+# helper to mount the qcow2-container per nbd
+connect_qcow() {
+	# try to mount the locally exported qcow2-container using nbd-client
+	if nbd-client --systemd-mark --persist 127.0.0.1 2000 /dev/nbd0; then
+		# it worked, lets set the symlink to /dev/root as dracut needs it
+		# later on to mount that device to the future root (/sysroot)
+		ln -sf /dev/nbd0 /dev/root
+		return 0
+	else
+		# this is pretty bad, dracut would spawn an emergency later on
+		# since there is no /dev/root to mount.
+		# For debugging purposes, we drop an emergency shell ourselves
+		# if the mount fails.
+		warn "Could not mount /dev/nbd0 from 127.0.0.1:2000."
+		emergency_shell -n "Error in $0"
+		return 1
+	fi
+}
 #
 # END FUNCTION DEFINITIONS
 ###############################################################################
 
-###############################################################################
-# MAIN CODE
-#
-#check_dnbd3 || return 1
-connect_dnbd3 || exit 1
-create_qcow || exit 1
-export_qcow || exit 1
-
-# all good, we are done :)
-exit 0
+# No main, use functions!
diff --git a/testModule/udev/70-openslx-disk.rules b/testModule/udev/70-openslx-disk.rules
new file mode 100644
index 00000000..3f5e382f
--- /dev/null
+++ b/testModule/udev/70-openslx-disk.rules
@@ -0,0 +1,8 @@
+# GPT rules
+KERNEL=="sd?[0-9]" SUBSYSTEM=="block" ENV{ID_PART_TABLE_TYPE}=="gpt" ENV{ID_PART_ENTRY_NAME}=="OPENSLX_TMP" RUN+="/sbin/prepare-disks %E{ID_PART_ENTRY_NAME} %k"
+KERNEL=="sd?[0-9]" SUBSYSTEM=="block" ENV{ID_PART_TABLE_TYPE}=="gpt" ENV{ID_PART_ENTRY_NAME}=="OPENSLX_SYS" RUN+="/sbin/prepare-disks %E{ID_PART_ENTRY_NAME} %k"
+
+# MBR rules
+KERNEL=="sd?[0-9]" SUBSYSTEM=="block" ENV{ID_PART_TABLE_TYPE}=="dos" ENV{ID_PART_ENTRY_TYPE}=="0x44" RUN+="/sbin/prepare-disks OPENSLX_TMP %k"
+KERNEL=="sd?[0-9]" SUBSYSTEM=="block" ENV{ID_PART_TABLE_TYPE}=="dos" ENV{ID_PART_ENTRY_TYPE}=="0x46" RUN+="/sbin/prepare-disks OPENSLX_SYS %k"
+
-- 
cgit v1.2.3-55-g7522


From f0629e71b6cd2d557826e1dd7d5d16266c6aada2 Mon Sep 17 00:00:00 2001
From: Jonathan Bauer
Date: Wed, 6 May 2015 18:18:44 +0200
Subject: oops

---
 testModule/hooks/cmdline.sh     | 22 ---------------------
 testModule/hooks/mount.sh       |  3 ---
 testModule/hooks/nbd-cmdline.sh |  5 -----
 testModule/hooks/pre-mount.sh   |  9 ---------
 testModule/hooks/pre-udev.sh    | 44 -----------------------------------------
 5 files changed, 83 deletions(-)
 delete mode 100755 testModule/hooks/cmdline.sh
 delete mode 100755 testModule/hooks/mount.sh
 delete mode 100755 testModule/hooks/nbd-cmdline.sh
 delete mode 100755 testModule/hooks/pre-mount.sh
 delete mode 100755 testModule/hooks/pre-udev.sh

(limited to 'testModule')

diff --git a/testModule/hooks/cmdline.sh b/testModule/hooks/cmdline.sh
deleted file mode 100755
index b1f06ea6..00000000
--- a/testModule/hooks/cmdline.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-echo 1 > /proc/sys/kernel/sysrq
-
-# fakes the cmdline to fix the ip parsing when using
-# syslinux's IPAPPEND 1 mask
-[ -d /fake ] || mkdir /fake
-
-# need to be a tmpfs for the hack to work
-mount -t tmpfs tmpfs /fake
-
-# append ':hiwi:eth0:none' to the 'ip=' parameter we got
-# from syslinux's IPAPPEND 1
-sed 's/\(ip=\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}:\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}:\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}:\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\)/\1:hiwi:eno1:none/' /proc/cmdline > /fake/cmdline
-
-# bind mount it. Can we trust mount return codes here?
-# if so, we should check what we get in $?
-mount -o bind /fake/cmdline /proc/cmdline
-
-# check if it worked
-if ! grep 'hiwi:eth0:none' /proc/cmdline; then
-    command -v warn >/dev/null || . /lib/dracut-lib.sh
-    warn 'Haxing cmdline did not work :( sad pandaz...'
-fi
diff --git a/testModule/hooks/mount.sh b/testModule/hooks/mount.sh
deleted file mode 100755
index e893642d..00000000
--- a/testModule/hooks/mount.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-mount /dev/root $NEWROOT
diff --git a/testModule/hooks/nbd-cmdline.sh b/testModule/hooks/nbd-cmdline.sh
deleted file mode 100755
index 6464646f..00000000
--- a/testModule/hooks/nbd-cmdline.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-
-rootok=1
-root=block:/dev/root
-
diff --git a/testModule/hooks/pre-mount.sh b/testModule/hooks/pre-mount.sh
deleted file mode 100755
index b22cdc35..00000000
--- a/testModule/hooks/pre-mount.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/usr/bin/bash
-
-while ! /sbin/setup-qcow2; do
-    sleep 0.5
-done
-
-while ! /sbin/setup-nbdroot; do
-    sleep 0.5
-done
diff --git a/testModule/hooks/pre-udev.sh b/testModule/hooks/pre-udev.sh
deleted file mode 100755
index 578169e9..00000000
--- a/testModule/hooks/pre-udev.sh
+++ /dev/null
@@ -1,44 +0,0 @@
-#!/usr/bin/bash
-
-# include dracut-lib.sh to use 'warn'
-command -v warn >/dev/null || . /lib/dracut-lib.sh
-
-SETUP_SCRIPT="/sbin/setup-qcow2"
-NBDROOT_SCRIPT="/sbin/setup-nbdroot"
-NBD_MOD_PATH="/usr/lib/modules/current/extra/nbd.ko"
-DNBD3_MOD_PATH="/usr/lib/modules/current/extra/dnbd3.ko"
-
-# sanity checks
-if [ ! -e "${SETUP_SCRIPT}" ]; then
-	warn "No such file of directory: ${SETUP_SCRIPT}"
-	emergency_shell -n "Error in $0"
-	return 1
-fi
-if [ ! -e "${NBD_MOD_PATH}" ]; then
-	warn "No such file of directory: ${NBD_MOD_PATH}"
-	emergency_shell -n "Error in $0"
-	return 1
-fi
-if [ ! -e "${DNBD3_MOD_PATH}" ]; then
-	warn "No such file of directory: ${DNBD3_MOD_PATH}"
-	emergency_shell -n "Error in $0"
-	return 1
-fi
-
-# load the kernel modules for dnbd3 and nbd
-if ! insmod /usr/lib/modules/current/extra/dnbd3.ko; then
-	warn "Failed to load DNBD3 kernel module..."
-	emergency_shell -n "Error in $0"
-	return 1
-fi
-
-if ! insmod /usr/lib/modules/current/extra/nbd.ko; then
-	warn "Failed to load NBD kernel module..."
-	emergency_shell -n "Error in $0"
-	return 1
-fi
-
-# now let's "install" the setup script in the initqueue
-#/sbin/initqueue --settled --unique "${SETUP_SCRIPT}"
-#/sbin/initqueue --settled --unique "${NBDROOT_SCRIPT}"
-#/sbin/initqueue --settled --unique "/sbin/retry-nbdroot"
-- 
cgit v1.2.3-55-g7522


From fe968c954def3b26b8ce503adfd16d20029bab75 Mon Sep 17 00:00:00 2001
From: Jonathan Bauer
Date: Wed, 6 May 2015 18:19:03 +0200
Subject: deprecated

---
 testModule/scripts/r             |  3 ---
 testModule/scripts/retry-nbdroot |  5 -----
 testModule/scripts/setup-nbdroot | 12 ------------
 3 files changed, 20 deletions(-)
 delete mode 100755 testModule/scripts/r
 delete mode 100755 testModule/scripts/retry-nbdroot
 delete mode 100755 testModule/scripts/setup-nbdroot

(limited to 'testModule')

diff --git a/testModule/scripts/r b/testModule/scripts/r
deleted file mode 100755
index 9b4fd4fc..00000000
--- a/testModule/scripts/r
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/bash
-
-echo b > /proc/sysrq-trigger
diff --git a/testModule/scripts/retry-nbdroot b/testModule/scripts/retry-nbdroot
deleted file mode 100755
index 8eb4bd27..00000000
--- a/testModule/scripts/retry-nbdroot
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-
-[ -f /tmp/qemu-nbd.pid ] || exit 1
-
-/sbin/nbdroot eno1 nbd:127.0.0.1:2000 /sysroot
diff --git a/testModule/scripts/setup-nbdroot b/testModule/scripts/setup-nbdroot
deleted file mode 100755
index 38f48dd4..00000000
--- a/testModule/scripts/setup-nbdroot
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/bash
-
-# exit 1 until qemu-nbd is running
-[ -f /tmp/qemu-nbd.pid ] || exit 1
-
-#
-if nbd-client --systemd-mark --persist 127.0.0.1 2000 /dev/nbd0; then
-	ln -sf /dev/nbd0 /dev/root
-	exit 0
-else
-	exit 1
-fi
-- 
cgit v1.2.3-55-g7522


From c50dd3c817814d7d8e3be66efe1ade9a11fac636 Mon Sep 17 00:00:00 2001
From: Jonathan Bauer
Date: Wed, 6 May 2015 18:24:51 +0200
Subject: minor - flag names ...

---
 testModule/hooks/pre-pivot/mount-tmp.sh |  2 +-
 testModule/scripts/prepare-disks        | 17 ++++++++---------
 2 files changed, 9 insertions(+), 10 deletions(-)

(limited to 'testModule')

diff --git a/testModule/hooks/pre-pivot/mount-tmp.sh b/testModule/hooks/pre-pivot/mount-tmp.sh
index 152c844e..3fa24cce 100755
--- a/testModule/hooks/pre-pivot/mount-tmp.sh
+++ b/testModule/hooks/pre-pivot/mount-tmp.sh
@@ -3,7 +3,7 @@
 # the initqueue. If a valid partition is found (either GPT with the label
 # OPENSLX_TMP or MBR with the type 0x44) its path will be written to
 # /tmp/openslx.tmpdisk
-OPENSLX_TMP_DISK_FLAG="/tmp/openslx.tmpdisk"
+OPENSLX_TMP_DISK_FLAG="/tmp/openslx.disk.tmp"
 
 if [ ! -e "$OPENSLX_TMP_DISK_FLAG" ]; then
 	warn "'$OPENSLX_TMP_DISK_FLAG' not found!"
diff --git a/testModule/scripts/prepare-disks b/testModule/scripts/prepare-disks
index 28113cc7..2e7dd673 100755
--- a/testModule/scripts/prepare-disks
+++ b/testModule/scripts/prepare-disks
@@ -3,7 +3,7 @@
 # GLOBALS
 #
 
-declare -rg FLAG="/tmp/openslx.disks"
+declare -rg FLAG="/tmp/openslx.disk"
 declare -rg OPENSLX_SYS_MOUNT="/opt/openslx/system"
 
 #
@@ -18,7 +18,7 @@ declare -rg OPENSLX_SYS_MOUNT="/opt/openslx/system"
 mount_sys_part() {
 	if [ ! -b "$1" ]; then
 		warn "'$1' is not a block device?"
-		echo "!block: $1" >> /tmp/openslx.disks.log
+		echo "!block: $1" >> /tmp/openslx.disk.log
 		return 1
 	fi
 
@@ -26,10 +26,9 @@ mount_sys_part() {
 	mkdir -p ${OPENSLX_SYS_MOUNT}
 	if ! mount -t auto "${OPENSLX_SYS_DEVICE}" "${OPENSLX_SYS_MOUNT}"; then
 		warn "Mounting '${OPENSLX_SYS_DEVICE}' to '${OPENSLX_SYS_MOUNT}' failed."
-		echo "mount phail" >> /tmp/openslx.disks.log
+		echo "mount phail" >> /tmp/openslx.disk.log
 		return 1
 	fi
-	echo "ZOMG" >> /tmp/openslx.disks.log
 	return 0
 
 }
@@ -46,20 +45,20 @@ command -v warn >/dev/null || . /lib/dracut-lib.sh
 # let check the arguments
 if [ "$#" -ne 2 ]; then
 	warn "'$0' need 2 arguments: '$0 [OPENSLX_SYS|OPENSLX_TMP] <dev_path>'"
-	echo "Not enough args!" >> /tmp/openslx.disks.log
+	echo "Not enough args!" >> /tmp/openslx.disk.log
 	exit 1
 fi
 # $1 sane?
 if [ "x$1" != "xOPENSLX_SYS" ] && [ "x$1" != "xOPENSLX_TMP" ]; then
 	warn "First arg needs to be either 'OPENSLX_SYS' or 'OPENSLX_TMP'."
 	warn "Given: $1"
-	echo "OPENSLX? $1" >> /tmp/openslx.disks.log
+	echo "OPENSLX? $1" >> /tmp/openslx.disk.log
 	exit 1
 fi
 # $2 sane?
 if [ ! -b "/dev/$2" ]; then
 	warn "Second arg appears not to be a block device!"
-	echo "block? $2" >> /tmp/openslx.disks.log
+	echo "block? $2" >> /tmp/openslx.disk.log
 	exit 1
 fi
 
@@ -72,7 +71,7 @@ INSTANCES="$(grep "$PART_TYPE" "$FLAG" | busybox wc -l)"
 if [ "$INSTANCES" -ge 1 ]; then
 	# uhoh we are not alone!
 	warn "'$0' already running for $PART_TYPE ... ignoring."
-	echo "already running for $PART_TYPE" >> /tmp/openslx.disks.log
+	echo "already running for $PART_TYPE" >> /tmp/openslx.disk.log
 	exit 1
 fi
 
@@ -81,7 +80,7 @@ fi
 echo "$PART_TYPE.$$" >> "$FLAG"
 
 # if we are still here, then we can go on and process the partition
-echo "Processing: $PART_TYPE -> $PART_DEV" >> /tmp/openslx.disks.log
+echo "Processing: $PART_TYPE -> $PART_DEV" >> /tmp/openslx.disk.log
 
 if [ "$PART_TYPE" = "OPENSLX_TMP" ]; then
 	# mark it for later mounting!
-- 
cgit v1.2.3-55-g7522


From 9f715701236bdc418a174828cccf27a8ab63874c Mon Sep 17 00:00:00 2001
From: Jonathan Bauer
Date: Thu, 7 May 2015 17:29:03 +0200
Subject: prepare-disk: check state of disk detection when an instance sees
 another

---
 testModule/module-setup.sh       |   2 +-
 testModule/scripts/prepare-disks | 145 +++++++++++++++++++++++++++++++++------
 testModule/scripts/setup-qcow2   |   4 ++
 3 files changed, 128 insertions(+), 23 deletions(-)

(limited to 'testModule')

diff --git a/testModule/module-setup.sh b/testModule/module-setup.sh
index efd79cf1..c06435c9 100644
--- a/testModule/module-setup.sh
+++ b/testModule/module-setup.sh
@@ -108,7 +108,7 @@ install() {
     # in your iniramfs.
     inst_multiple lsblk ping ip ifconfig sshd htop tail head cat vim \
         touch sed lsmod insmod qemu-img sleep route wget find lsof strace \
-        chroot switch_root pivot_root qemu-nbd mount nbd-client fdisk
+        chroot switch_root pivot_root qemu-nbd mount nbd-client fdisk mkfs.xfs
     # Production:
     # inst_multiple insmod qemu-img qemu-nbd
     return 0
diff --git a/testModule/scripts/prepare-disks b/testModule/scripts/prepare-disks
index 2e7dd673..1992a262 100755
--- a/testModule/scripts/prepare-disks
+++ b/testModule/scripts/prepare-disks
@@ -3,7 +3,15 @@
 # GLOBALS
 #
 
-declare -rg FLAG="/tmp/openslx.disk"
+# flag file containing pids of running instances for concurrency checks
+declare -rg OPENSLX_DISK_FLAG="/tmp/openslx.disk"
+# file that will contain the name of the device used for the /tmp partition
+# - label 'OPENSLX_TMP' in GPT / type '0x44' in MBR
+declare -rg OPENSLX_TMP_MARKER="/tmp/openslx.disk.tmp"
+# file that will contain the name of the device used for storing qcow2
+# - label 'OPENSLX_SYS' in GPT / type '0x46' in MBR
+declare -rg OPENSLX_SYS_MARKER="/tmp/openslx.disk.sys"
+# mount point for system partition
 declare -rg OPENSLX_SYS_MOUNT="/opt/openslx/system"
 
 #
@@ -17,8 +25,7 @@ declare -rg OPENSLX_SYS_MOUNT="/opt/openslx/system"
 # Usage: mount_sys_part <path_to_sys_partition>
 mount_sys_part() {
 	if [ ! -b "$1" ]; then
-		warn "'$1' is not a block device?"
-		echo "!block: $1" >> /tmp/openslx.disk.log
+		warn "Refusing to mount '$1' as its not a block device!"
 		return 1
 	fi
 
@@ -26,12 +33,41 @@ mount_sys_part() {
 	mkdir -p ${OPENSLX_SYS_MOUNT}
 	if ! mount -t auto "${OPENSLX_SYS_DEVICE}" "${OPENSLX_SYS_MOUNT}"; then
 		warn "Mounting '${OPENSLX_SYS_DEVICE}' to '${OPENSLX_SYS_MOUNT}' failed."
-		echo "mount phail" >> /tmp/openslx.disk.log
 		return 1
 	fi
 	return 0
 
 }
+#
+# generic helper to format the given partition with the given filesystem or
+# from the prefdefined list of xfs, ext4, ...
+# Usage: format_disk <dev> <fs>
+#  e.g.  format_disk /dev/sda1 xfs
+format_disk () {
+	local TARGET_DEVICE="$1"
+	local fslist="xfs ext4"
+	# if we have a second arguments, its the filesystem of choice
+	local fs
+	[ $# -ge 2 ] && fslist="$2"
+	for fs in $fslist ; do
+		unset found
+		local MKFS="$(busybox which mkfs.$fs)"
+		if [ -n $MKFS ]; then
+			found=yes
+			case "mkfs.$fs" in
+				mkfs.xfs)   fopt="-fq"  ;;
+				mkfs.ext4)  fopt="-Fq"  ;;
+			esac
+			info "Formatting $TARGET_DEVICE as $fs"
+			return $(${MKFS} ${fopt} "${TARGET_DEVICE}")
+		fi
+		[ -n "$found" ] && break
+	done
+	# still here? then we didn't find a proper formatter...
+	warn "Could not format $PART_DEV as $fs."
+	return 1
+}
+
 #
 # END FUNCTION DEFINITIONS
 ###############################################################################
@@ -45,51 +81,116 @@ command -v warn >/dev/null || . /lib/dracut-lib.sh
 # let check the arguments
 if [ "$#" -ne 2 ]; then
 	warn "'$0' need 2 arguments: '$0 [OPENSLX_SYS|OPENSLX_TMP] <dev_path>'"
-	echo "Not enough args!" >> /tmp/openslx.disk.log
 	exit 1
 fi
 # $1 sane?
 if [ "x$1" != "xOPENSLX_SYS" ] && [ "x$1" != "xOPENSLX_TMP" ]; then
-	warn "First arg needs to be either 'OPENSLX_SYS' or 'OPENSLX_TMP'."
-	warn "Given: $1"
-	echo "OPENSLX? $1" >> /tmp/openslx.disk.log
+	warn "First arg needs to be either 'OPENSLX_SYS' or 'OPENSLX_TMP', given: $1"
 	exit 1
 fi
 # $2 sane?
 if [ ! -b "/dev/$2" ]; then
 	warn "Second arg appears not to be a block device!"
-	echo "block? $2" >> /tmp/openslx.disk.log
 	exit 1
 fi
 
-# ok all seems well
+# ok all seems well, set the arguments
 PART_TYPE="$1"
 PART_DEV="/dev/$2"
 
+unset OPENSLX_TMP_DEVICE
+unset OPENSLX_SYS_DEVICE
+
 # lets check if we are already running
-INSTANCES="$(grep "$PART_TYPE" "$FLAG" | busybox wc -l)"
+INSTANCES="$(grep "$PART_TYPE" "$OPENSLX_DISK_FLAG" | busybox wc -l)"
 if [ "$INSTANCES" -ge 1 ]; then
-	# uhoh we are not alone!
-	warn "'$0' already running for $PART_TYPE ... ignoring."
-	echo "already running for $PART_TYPE" >> /tmp/openslx.disk.log
-	exit 1
+	# uhoh we are not alone! Need to check
+	# if the other instance actually did its job
+	warn "'$0' already running for $PART_TYPE ... checking state."
+	# here two/three cases depending on which PART_TYPE we are
+	# currently processing.
+	for timeout in 1 1 2; do
+		# always give the other instance time to finish
+		# but only check 3 times overall
+		sleep $timeout
+		case "$PART_TYPE" in
+			OPENSLX_TMP)
+				# was the tmp partition marker created with a device?
+				[ -f "${OPENSLX_TMP_MARKER}" ] || continue
+				# it was, is it a valid block device?
+				OPENSLX_TMP_DEVICE="$(cat ${OPENSLX_TMP_MARKER})"
+				[ -b $OPENSLX_TMP_DEVICE ] || continue
+				# its detected, its a block device and as mounting is
+				# done later, we can not check for more at this point
+				info "Valid state for $OPENSLX_TMP_DEVICE"
+				exit 0
+				;;
+			OPENSLX_SYS)
+				# was the system partition marker created with a device?
+				[ -f "${OPENSLX_SYS_MARKER}" ] || continue
+				# it was, is it a valid block device?
+				OPENSLX_SYS_DEVICE="$(cat ${OPENSLX_SYS_MARKER})"
+				[ -b $OPENSLX_SYS_DEVICE ] || continue
+				# its detected, its a block device, is it mounted?
+				if mount | grep -qE "^$OPENSLX_SYS_DEVICE\ on $OPENSLX_SYS_MOUNT"; then
+					info "Valid state for $OPENSLX_SYS_DEVICE"
+					exit 0
+				fi
+				# if its not mounted, we want to keep on, so no exit!
+				;;
+			*)
+				# weird case which should never happen
+				warn "If you see this, then $0 was called with a bad PART_TYPE: $@"
+				continue
+				;;
+		esac
+	done
+	warn "'$PART_TYPE' was found but not device was associated to it!"
 fi
 
-# now comes the funny part. We write our pid to $FLAG in order to make sure
+# We write our pid to $OPENSLX_DISK_FLAG in order to make sure
 # we are the only instance of this script running.
-echo "$PART_TYPE.$$" >> "$FLAG"
+info "Processing: $PART_TYPE -> $PART_DEV ($$)"
+echo "$PART_TYPE.$$" >> "$OPENSLX_DISK_FLAG"
 
 # if we are still here, then we can go on and process the partition
-echo "Processing: $PART_TYPE -> $PART_DEV" >> /tmp/openslx.disk.log
-
 if [ "$PART_TYPE" = "OPENSLX_TMP" ]; then
-	# mark it for later mounting!
-	echo "$PART_DEV" > /tmp/openslx.disk.tmp
+	# always format /tmp partition
+	if ! format_disk "${PART_DEV}" xfs; then
+		# error while formatting, cleanup
+		warn "Error formatting $PART_DEV ... removing $$"
+		sed -i "/^${PART_TYPE}\.$$/d" "${OPENSLX_DISK_FLAG}"
+		exit 1
+	fi
+	info "Using '$PART_DEV' as '$PART_TYPE'"
+	# mark it for later: in pre-pivot we will check this file
+	# and mount it as $NEWROOT/tmp
+	echo "$PART_DEV" > "$OPENSLX_TMP_MARKER"
+	# remove our pid from OPENSLX_DISK_FLAG
+	sed -i "/^${PART_TYPE}\.$$/d" "${OPENSLX_DISK_FLAG}"
 	exit 0
 fi
 if [ "$PART_TYPE" = "OPENSLX_SYS" ]; then
+	# TODO make the formatting of the system partition configurable
+	if ! format_disk "${PART_DEV}" xfs; then
+		# error while formatting, cleanup
+		warn "Error formatting $PART_DEV ... removing $$"
+		sed -i "/^${PART_TYPE}\.$$/d" "${OPENSLX_DISK_FLAG}"
+		exit 1
+	fi
+	# mark it
 	# mount it now, since qemu-nbd needs it asap!
-	exit $(mount_sys_part "$PART_DEV")
+	if mount_sys_part "$PART_DEV"; then
+		# mount worked, mark it as done
+		info "Using '$PART_DEV' as '$PART_TYPE'"
+		echo "$PART_DEV" > "$OPENSLX_SYS_MARKER"
+		sed -i "/^${PART_TYPE}\.$$/d" "${OPENSLX_DISK_FLAG}"
+		exit 0
+	else
+		warn "'mount_sys_part' failed in $0"
+		sed -i "/^${PART_TYPE}\.$$/d" "${OPENSLX_DISK_FLAG}"
+		exit 1
+	fi
 fi
 
 #
diff --git a/testModule/scripts/setup-qcow2 b/testModule/scripts/setup-qcow2
index b14ccd87..86b69db2 100755
--- a/testModule/scripts/setup-qcow2
+++ b/testModule/scripts/setup-qcow2
@@ -57,6 +57,10 @@ create_qcow() {
 	# check if we already created the qcow2-container
 	[ -e "$QCOW_CONTAINER" ] && return 0
 
+	# check if we have our target directory, if not create it
+	[ ! -d "$(busybox dirname $QCOW_CONTAINER)" ] && \
+		mkdir -p "$(busybox dirname $QCOW_CONTAINER)"
+
 	# we did not, let's create it
 	if ! qemu-img create -f qcow2 -o \
 		backing_file="$DNBD3_DEVICE",backing_fmt=qcow2 "$QCOW_CONTAINER"; then
-- 
cgit v1.2.3-55-g7522


From deacdfe13b2eac8e84d72a62bb5c161436aa3c19 Mon Sep 17 00:00:00 2001
From: Jonathan Bauer
Date: Thu, 7 May 2015 18:10:51 +0200
Subject: added pids to log messages for better debugging

---
 testModule/scripts/prepare-disks | 57 ++++++++++++++++++++++++----------------
 1 file changed, 35 insertions(+), 22 deletions(-)

(limited to 'testModule')

diff --git a/testModule/scripts/prepare-disks b/testModule/scripts/prepare-disks
index 1992a262..2e68dd9e 100755
--- a/testModule/scripts/prepare-disks
+++ b/testModule/scripts/prepare-disks
@@ -25,14 +25,14 @@ declare -rg OPENSLX_SYS_MOUNT="/opt/openslx/system"
 # Usage: mount_sys_part <path_to_sys_partition>
 mount_sys_part() {
 	if [ ! -b "$1" ]; then
-		warn "Refusing to mount '$1' as its not a block device!"
+		warn "($$) Refusing to mount '$1' as its not a block device!"
 		return 1
 	fi
 
 	local OPENSLX_SYS_DEVICE="$1"
 	mkdir -p ${OPENSLX_SYS_MOUNT}
 	if ! mount -t auto "${OPENSLX_SYS_DEVICE}" "${OPENSLX_SYS_MOUNT}"; then
-		warn "Mounting '${OPENSLX_SYS_DEVICE}' to '${OPENSLX_SYS_MOUNT}' failed."
+		warn "($$) Mounting '${OPENSLX_SYS_DEVICE}' to '${OPENSLX_SYS_MOUNT}' failed."
 		return 1
 	fi
 	return 0
@@ -58,13 +58,13 @@ format_disk () {
 				mkfs.xfs)   fopt="-fq"  ;;
 				mkfs.ext4)  fopt="-Fq"  ;;
 			esac
-			info "Formatting $TARGET_DEVICE as $fs"
+			info "($$) Formatting $TARGET_DEVICE as $fs"
 			return $(${MKFS} ${fopt} "${TARGET_DEVICE}")
 		fi
 		[ -n "$found" ] && break
 	done
 	# still here? then we didn't find a proper formatter...
-	warn "Could not format $PART_DEV as $fs."
+	warn "($$) Could not format $PART_DEV as $fs."
 	return 1
 }
 
@@ -80,17 +80,17 @@ command -v warn >/dev/null || . /lib/dracut-lib.sh
 
 # let check the arguments
 if [ "$#" -ne 2 ]; then
-	warn "'$0' need 2 arguments: '$0 [OPENSLX_SYS|OPENSLX_TMP] <dev_path>'"
+	warn "($$) '$0' need 2 arguments: '$0 [OPENSLX_SYS|OPENSLX_TMP] <dev_path>'"
 	exit 1
 fi
 # $1 sane?
 if [ "x$1" != "xOPENSLX_SYS" ] && [ "x$1" != "xOPENSLX_TMP" ]; then
-	warn "First arg needs to be either 'OPENSLX_SYS' or 'OPENSLX_TMP', given: $1"
+	warn "($$) First arg needs to be either 'OPENSLX_SYS' or 'OPENSLX_TMP', given: $1"
 	exit 1
 fi
 # $2 sane?
 if [ ! -b "/dev/$2" ]; then
-	warn "Second arg appears not to be a block device!"
+	warn "($$) Second arg appears not to be a block device!"
 	exit 1
 fi
 
@@ -106,7 +106,7 @@ INSTANCES="$(grep "$PART_TYPE" "$OPENSLX_DISK_FLAG" | busybox wc -l)"
 if [ "$INSTANCES" -ge 1 ]; then
 	# uhoh we are not alone! Need to check
 	# if the other instance actually did its job
-	warn "'$0' already running for $PART_TYPE ... checking state."
+	warn "($$) '$0' already running for $PART_TYPE on $PART_DEV... checking state."
 	# here two/three cases depending on which PART_TYPE we are
 	# currently processing.
 	for timeout in 1 1 2; do
@@ -116,41 +116,54 @@ if [ "$INSTANCES" -ge 1 ]; then
 		case "$PART_TYPE" in
 			OPENSLX_TMP)
 				# was the tmp partition marker created with a device?
-				[ -f "${OPENSLX_TMP_MARKER}" ] || continue
+				if [ ! -f "${OPENSLX_TMP_MARKER}" ]; then
+					info "($$) Invalid state: no marker for $PART_TYPE"
+					continue
+				fi
 				# it was, is it a valid block device?
 				OPENSLX_TMP_DEVICE="$(cat ${OPENSLX_TMP_MARKER})"
-				[ -b $OPENSLX_TMP_DEVICE ] || continue
+				if [ -z $OPENSLX_TMP_DEVICE -o ! -b $OPENSLX_TMP_DEVICE ]; then
+					info "($$) Invalid state: no for device $OPENSLX_TMP_DEVICE"
+					continue
+				fi
 				# its detected, its a block device and as mounting is
 				# done later, we can not check for more at this point
-				info "Valid state for $OPENSLX_TMP_DEVICE"
+				info "($$) Valid state for $OPENSLX_TMP_DEVICE as $PART_TYPE"
 				exit 0
 				;;
 			OPENSLX_SYS)
 				# was the system partition marker created with a device?
-				[ -f "${OPENSLX_SYS_MARKER}" ] || continue
+				if [ ! -f "${OPENSLX_SYS_MARKER}" ]; then
+					info "($$) Invalid state: no marker for $PART_TYPE"
+					continue
+				fi
 				# it was, is it a valid block device?
 				OPENSLX_SYS_DEVICE="$(cat ${OPENSLX_SYS_MARKER})"
-				[ -b $OPENSLX_SYS_DEVICE ] || continue
+				if [ -z $OPENSLX_SYS_DEVICE -o ! -b $OPENSLX_SYS_DEVICE ]; then
+					info "($$) Invalid state: no for device $OPENSLX_SYS_DEVICE"
+					continue
+				fi
 				# its detected, its a block device, is it mounted?
 				if mount | grep -qE "^$OPENSLX_SYS_DEVICE\ on $OPENSLX_SYS_MOUNT"; then
-					info "Valid state for $OPENSLX_SYS_DEVICE"
+					info "($$) Valid state for $OPENSLX_SYS_DEVICE as $PART_TYPE"
 					exit 0
 				fi
 				# if its not mounted, we want to keep on, so no exit!
 				;;
 			*)
 				# weird case which should never happen
-				warn "If you see this, then $0 was called with a bad PART_TYPE: $@"
+				warn "($$) If you see this, then $0 was called with a bad PART_TYPE: $@"
 				continue
 				;;
 		esac
 	done
-	warn "'$PART_TYPE' was found but not device was associated to it!"
+	warn "($$) Timeout reached!"
+	warn "($$) '$PART_TYPE' was found but not device was associated to it!"
 fi
 
 # We write our pid to $OPENSLX_DISK_FLAG in order to make sure
 # we are the only instance of this script running.
-info "Processing: $PART_TYPE -> $PART_DEV ($$)"
+info "($$) Processing: $PART_TYPE -> $PART_DEV ($$)"
 echo "$PART_TYPE.$$" >> "$OPENSLX_DISK_FLAG"
 
 # if we are still here, then we can go on and process the partition
@@ -158,11 +171,11 @@ if [ "$PART_TYPE" = "OPENSLX_TMP" ]; then
 	# always format /tmp partition
 	if ! format_disk "${PART_DEV}" xfs; then
 		# error while formatting, cleanup
-		warn "Error formatting $PART_DEV ... removing $$"
+		warn "($$) Error formatting $PART_DEV ... removing $$"
 		sed -i "/^${PART_TYPE}\.$$/d" "${OPENSLX_DISK_FLAG}"
 		exit 1
 	fi
-	info "Using '$PART_DEV' as '$PART_TYPE'"
+	info "($$) Using '$PART_DEV' as '$PART_TYPE'"
 	# mark it for later: in pre-pivot we will check this file
 	# and mount it as $NEWROOT/tmp
 	echo "$PART_DEV" > "$OPENSLX_TMP_MARKER"
@@ -174,7 +187,7 @@ if [ "$PART_TYPE" = "OPENSLX_SYS" ]; then
 	# TODO make the formatting of the system partition configurable
 	if ! format_disk "${PART_DEV}" xfs; then
 		# error while formatting, cleanup
-		warn "Error formatting $PART_DEV ... removing $$"
+		warn "($$) Error formatting $PART_DEV ... removing $$"
 		sed -i "/^${PART_TYPE}\.$$/d" "${OPENSLX_DISK_FLAG}"
 		exit 1
 	fi
@@ -182,12 +195,12 @@ if [ "$PART_TYPE" = "OPENSLX_SYS" ]; then
 	# mount it now, since qemu-nbd needs it asap!
 	if mount_sys_part "$PART_DEV"; then
 		# mount worked, mark it as done
-		info "Using '$PART_DEV' as '$PART_TYPE'"
+		info "($$) Using '$PART_DEV' as '$PART_TYPE'"
 		echo "$PART_DEV" > "$OPENSLX_SYS_MARKER"
 		sed -i "/^${PART_TYPE}\.$$/d" "${OPENSLX_DISK_FLAG}"
 		exit 0
 	else
-		warn "'mount_sys_part' failed in $0"
+		warn "($$) 'mount_sys_part' failed in $0"
 		sed -i "/^${PART_TYPE}\.$$/d" "${OPENSLX_DISK_FLAG}"
 		exit 1
 	fi
-- 
cgit v1.2.3-55-g7522


From 46ba927a27fc6d6b2fc76096e57ae127c41b65b9 Mon Sep 17 00:00:00 2001
From: Jonathan Bauer
Date: Thu, 7 May 2015 18:12:30 +0200
Subject: started configuration stuff

---
 testModule/hooks/pre-mount/fetch-config.sh | 12 ++++++++++++
 testModule/module-setup.sh                 |  3 +++
 testModule/scripts/setup-qcow2             |  9 ++++++---
 3 files changed, 21 insertions(+), 3 deletions(-)
 create mode 100755 testModule/hooks/pre-mount/fetch-config.sh

(limited to 'testModule')

diff --git a/testModule/hooks/pre-mount/fetch-config.sh b/testModule/hooks/pre-mount/fetch-config.sh
new file mode 100755
index 00000000..013b0058
--- /dev/null
+++ b/testModule/hooks/pre-mount/fetch-config.sh
@@ -0,0 +1,12 @@
+command -v info >/dev/null || . /lib/dracut-lib.sh
+
+info "Getting configuration from OPENSLX-Server..."
+
+WGET="$(busybox which wget)"
+if [ -z $WGET ]; then
+	# do nothing
+	warn "'wget' not found. Skipping openslx configuration..."
+	exit 1
+fi
+mkdir -p /opt/openslx
+$WGET http://10.4.9.51/openslx/config -O /opt/openslx/config
diff --git a/testModule/module-setup.sh b/testModule/module-setup.sh
index c06435c9..e40069ce 100644
--- a/testModule/module-setup.sh
+++ b/testModule/module-setup.sh
@@ -79,6 +79,9 @@ install() {
     inst_hook pre-udev 00 "$moddir/hooks/pre-udev/load-dnbd3-nbd-modules.sh"
 
     ## HOOK pre-mount
+    # this is the configuration hook where the config stuff is wget'ed
+    inst_hook pre-mount 00 "$moddir/hooks/pre-mount/fetch-config.sh"
+
     # this is the main hook where all the magic is triggered
     inst_hook pre-mount 10 "$moddir/hooks/pre-mount/mount-qcow.sh"
 
diff --git a/testModule/scripts/setup-qcow2 b/testModule/scripts/setup-qcow2
index 86b69db2..cc74457b 100755
--- a/testModule/scripts/setup-qcow2
+++ b/testModule/scripts/setup-qcow2
@@ -9,10 +9,13 @@ command -v emergency_shell >/dev/null || . /lib/dracut-lib.sh
 #
 # TODO make this configurable
 [ -f /opt/openslx/config ] && . /opt/openslx/config
+[ -z $SLX_DNBD3_SERVER ] && SLX_DNBD3_SERVER="132.230.4.1"
+[ -z $SLX_STAGE4 ] && SLX_STAGE4="stage4/joe/centos7"
+[ -z $SLX_STAGE4_RID ] && SLX_STAGE4_RID="4"
+declare -rg DNBD3_SERVER="$SLX_DNBD3_SERVER"
+declare -rg DNBD3_IMAGE="$SLX_STAGE4"
+declare -rg DNBD3_RID="$SLX_STAGE4_RID"
 declare -rg DNBD3_DEVICE="/dev/dnbd0"
-declare -rg DNBD3_SERVER="132.230.4.1"
-declare -rg DNBD3_IMAGE="stage4/joe/centos7"
-declare -rg DNBD3_RID="4"
 declare -rg QCOW_CONTAINER="/opt/openslx/system/system.qcow2"
 #
 # END GLOBALS
-- 
cgit v1.2.3-55-g7522