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fetch_source() {
mkdir -p src 2>/dev/null
cd src || perror "Could not change into src directory."
download "$REQUIRED_URL"
}
build() {
local KERNELSRCDIR="$MODULE_DIR/../kernel/ksrc" # kernel sources
local TEMPDIR="$MODULE_DIR/temp"
local ROOTLOWERDIR="/"
local ROOTUPPERDIR="$TEMPDIR/rootupper"
local ROOTBINDDIR="$TEMPDIR/rootbind"
local ROOTMOUNTDIR="$TEMPDIR/rootmount"
local BINDMOUNTS="/dev /proc /run /sys"
local NVIDIA="$MODULE_DIR/src/$REQUIRED_NVIDIA"
local NVIDIAEXTRACTDIR="$ROOTMOUNTDIR/NVIDIA"
local NVEXTRACTDIR="/NVIDIA" # This is relative to the chroot.
make_dirs () {
[ -d "$TEMPDIR" ] && rm -rf $TEMPDIR/*
mkdir -p "$TEMPDIR" || perror "Could not create base directory for mount directories $TEMPDIR."
for DIR in "$ROOTUPPERDIR" "$ROOTBINDDIR" "$ROOTMOUNTDIR"; do
mkdir -p "$DIR" || perror "Could not create directory for mount directory $DIR."
done
}
mount_dirs () {
pinfo "Executing bind- and overlay mounts ..."
mount -o bind "$ROOTLOWERDIR" "$ROOTBINDDIR" || perror "Could not mount (bind) $ROOTLOWERDIR to $ROOTBINDDIR."
mount -o remount,ro "$ROOTBINDDIR" || perror "Could not remount $ROOTBINDDIR ro read-only."
mount -t overlayfs overlayfs -o lowerdir="$ROOTBINDDIR",upperdir="$ROOTUPPERDIR" "$ROOTMOUNTDIR" \
|| perror "Could not mount (overlayfs) $ROOTLOWERDIR, $ROOTUPPERDIR to $BINDDIR."
pinfo "Executing bind mounts ($BINDMOUNTS) for chroot root dir ..."
for MOUNT in $BINDMOUNTS; do
mount -o bind "$MOUNT" "$ROOTMOUNTDIR/$MOUNT" || perror "Could not mount (bind) $MOUNTS into chroot root dir."
done
}
# We inject a bashrc to be executed later within the chroot.
gen_bashrc () {
local COMMON_OPTIONS=' --no-nouveau-check --no-network --no-backup --no-rpms --no-runlevel-check --no-distro-scripts --no-cc-version-check --no-x-check --no-precompiled-interface --silent '
cat >"$ROOTMOUNTDIR/$HOME/.bashrc"<<-EOF
echo "chroot successful."
alias ll='ls -alF' # A little convenience for debugging purposes.
PS1='\[\e[1;33m\]chroot@\h:\w\$ \[\e[1;32m\]' # To recognize the chroot instantly when debugging (yellow on black).
cd "$NVEXTRACTDIR"
./nvidia-installer $COMMON_OPTIONS --kernel-source-path /"$KERNELSRCDIR" # Do the work!
exit # Out-comment this for debugging: Then script stays in chroot.
EOF
}
unpack_nvidia () {
[ -d "$NVIDIAEXTRACTDIR" ] && rm -rf "$NVIDIAEXTRACTDIR"
pinfo "Unpacking NVidia archive ($NVIDIA) ..."
sh "$NVIDIA" --extract-only --target "$NVIDIAEXTRACTDIR" || perror "Could not extract $NVIDIA to $NVIDIAEXTRACTDIR."
}
umount_dirs () {
# Let's tidy the place, or at least the mounts: Otherwise these would stack up, and we do not like that, don't we.
for MOUNT in $BINDMOUNTS; do
umount "$ROOTMOUNTDIR/$MOUNT" || pwarning "Could not unmount $ROOTMOUNTDIR/$MOUNT!"
done
umount "$ROOTMOUNTDIR" || pwarning "Could not unmount $ROOTMOUNTDIR!"
umount "$ROOTBINDDIR" || pwarning "Could not unmount $ROOTBINDDIR!"
}
strip_modules () {
strip -g "$ROOTUPPERDIR/$NVEXTRACTDIR/kernel/nvidia.ko" || \
pwarning "Could not strip kernel module $ROOTUPPERDIR/$NVEXTRACTDIR/kernel/nvidia.ko."
strip -g "$ROOTUPPERDIR/$NVEXTRACTDIR/kernel/uvm/nvidia-uvm.ko" || \
pwarning "Could not strip kernel module $ROOTUPPERDIR/$NVEXTRACTDIR/kernel/uvm/nvidia-uvm.ko."
}
copy_modules () {
local NVIDIA_MODULES="$MODULE_DIR/build/lib/modules/nvidia/"
mkdir -p "$NVIDIA_MODULES"
cp "$ROOTUPPERDIR/$NVEXTRACTDIR/kernel/nvidia.ko" "$NVIDIA_MODULES" || perror "Could not copy nvidia.ko!"
cp "$ROOTUPPERDIR/$NVEXTRACTDIR/kernel/uvm/nvidia-uvm.ko" "$NVIDIA_MODULES" || perror "Could not copy nvidia-uvm.ko!"
}
clean_temp () {
rm -rf "$TEMPDIR" || perror "Could not clean/delete temp directory $TEMPDIR."
}
# Main stuff
pinfo "Generating temporary directories ..."
make_dirs
pinfo "Mounting directories ..."
mount_dirs
pinfo "Injecting .bashrc into later chroot ..."
gen_bashrc
pinfo "Unpacking NVidia-Installer ..."
unpack_nvidia
pinfo "Ready to chroot - compiling may take some time."
pdebug "--- chroot ---------------------------------------------------------------------"
pdebug "- -"
pdebug "- Notice: This may take a while! -"
pdebug "- -"
pdebug "- Please keep note the Nvidia installer _will_ complain about -"
pdebug "- several warnings and errors. It will do this in any case. -"
pdebug "- -"
pdebug "- This does _not_ mean the kernel module compilation was unsuccessful! -"
pdebug "- -"
pdebug "--------------------------------------------------------------------------------"
chroot "$ROOTMOUNTDIR"
pinfo "chroot terminated."
pinfo "Unmount directories."
umount_dirs
pinfo "Stripping kernel modules."
strip_modules
pinfo "Copying kernel modules."
copy_modules
pinfo "Cleaning / deleting temp directories."
clean_temp
}
post_copy() {
:
}
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