blob: c19263a3fa7711f38e696a5142cdf53d41530761 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
#!/bin/bash
check() {
if ! type -f qemu-nbd >/dev/null; then
echo "'qemu-nbd' not found on this system, install it to use this module."
return 1
fi
if ! type -f qemu-img >/dev/null; then
echo "'qemu-img' not found on this system, install it to use this module."
return 1
fi
if ! type -f nbd-client >/dev/null; then
echo "'nbd-client' not found on this system, install it to use this module."
return 1
else
# check version
local nbd_client_version="$(nbd-client --help 2>&1 | grep -oE '3\.[0-9]+')"
local nbd_client_version_major="${nbd_client_version%.*}"
local nbd_client_version_minor="${nbd_client_version#*.}"
if [ "${nbd_client_version_major}" -ne 3 ]; then
# nbd-client probably too old
echo "The nbd-client major version is not 3, meaning its probably too old."
return 1
fi
if [ "${nbd_client_version_minor}" -gt 11 ]; then
# TODO check if ver = 3.9 has the same new syntax...
echo "The nbd-client minor version is greater than 8. A new syntax has been
introduced starting with 3.10 which we do not support."
return 1
fi
return 0
fi
}
depends() {
echo base network bash kernel-modules
return 0
}
installkernel() {
instmods ext4
}
install() {
### BINARIES
#
# busybox: cause we want lightweight tools
inst "$moddir/binaries/busybox" /usr/bin/busybox
# 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
### 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"
# setup loopback device
inst_hook pre-udev 00 "$moddir/hooks/pre-udev/lo-setup.sh"
## HOOK pre-mount
# this is the configuration hook where the config stuff is wget'ed
inst_hook pre-mount 00 "$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"
## 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
# 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.
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 mkfs.xfs
# Production:
# inst_multiple insmod qemu-img qemu-nbd
return 0
}
|
