dde3d24213
Per [1], our current root label of cloudimg-root does not work with XFS because XFS only allows 12 character labels. This change addresses that by allowing a custom rootfs label to be specified in the call to disk-image-create. There should be no backwards compatibility concerns as the default label is unchanged. Any external elements dealing with the label would need to be updated to support this new feature, but should continue to work as before as long as a custom label is not specified. [1]: https://bugzilla.redhat.com/show_bug.cgi?id=1139584 Change-Id: I596104d1a63b5dc6549e8460a1ae3da00165ef04
189 lines
6.4 KiB
Bash
Executable File
189 lines
6.4 KiB
Bash
Executable File
#!/bin/bash
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# Configure grub. Note that the various conditionals here are to handle
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# different distributions gracefully.
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set -eux
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set -o pipefail
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# FIXME:
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[ -n "$IMAGE_BLOCK_DEVICE" ]
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PART_DEV=$IMAGE_BLOCK_DEVICE
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BOOT_DEV=$(echo $IMAGE_BLOCK_DEVICE | sed -e 's#p1##' | sed -e 's#mapper/##')
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function install_extlinux {
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install-packages extlinux
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echo "Installing Extlinux..."
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# Find and install mbr.bin
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for MBR in /usr/share/syslinux/mbr.bin /usr/lib/syslinux/mbr.bin \
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/usr/lib/extlinux/mbr.bin /usr/lib/EXTLINUX/mbr.bin ; do
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if [ -f $MBR ]; then
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break
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fi
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done
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if [ ! -f $MBR ]; then
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echo "mbr.bin (from EXT/SYSLINUX) not found."
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exit 1
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fi
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dd if=$MBR of=$BOOT_DEV
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# Find any pre-created extlinux install directory
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for EXTDIR in /boot/extlinux /boot/syslinux ; do
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if [ -d $EXTDIR ] ; then
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break
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fi
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done
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if [ ! -d $EXTDIR ] ; then
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# No install directory found so default to /boot/syslinux
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EXTDIR=/boot/syslinux
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mkdir -p $EXTDIR
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fi
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# Finally install extlinux
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extlinux --install $EXTDIR
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}
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function install_grub2 {
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# Check for offline installation of grub
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if [ -f "/tmp/grub/install" ] ; then
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source /tmp/grub/install
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else
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install-packages grub-pc
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fi
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# XXX: grub-probe on the nbd0/loop0 device returns nothing - workaround, manually
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# specify modules. https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1073731
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GRUBNAME=$(which grub-install) || echo "trying grub2-install"
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if [ -z "$GRUBNAME" ]; then
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GRUBNAME=$(which grub2-install)
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fi
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# If no GRUB2 is found, fallback to extlinux
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if [ -z "$GRUBNAME" ] || [ $($GRUBNAME --version | grep "0.97" | wc -l) -ne 0 ]; then
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echo "No GRUB2 found. Fallback to Extlinux..."
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install_extlinux
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exit 0
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fi
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echo "Installing GRUB2..."
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GRUB_OPTS=${GRUB_OPTS:-""}
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# XXX: This is buggy:
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# - --target=i386-pc is invalid for non-i386/amd64 architectures
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# - and for UEFI too.
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# GRUB_OPTS="$GRUB_OPTS --target=i386-pc"
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if [[ ! $GRUB_OPTS == *--target* ]] && [[ $($GRUBNAME --version) =~ ' 2.' ]]; then
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# /sys/ comes from the host machine. If the host machine is using EFI
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# but the image being built doesn't have EFI boot-images installed we
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# should set the --target to use a BIOS-based boot-image.
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#
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# * --target tells grub what's the target platform
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# * the boot images are placed in /usr/lib/grub/<cpu>-<platform>
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# * i386-pc is used for BIOS-based machines
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# http://www.gnu.org/software/grub/manual/grub.html#Installation
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#
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if [ -d /sys/firmware/efi ]; then
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if [ ! -d /usr/lib/grub/*-efi ]; then
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case $ARCH in
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"x86_64"|"amd64")
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GRUB_OPTS="$GRUB_OPTS --target=i386-pc"
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;;
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"i386")
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target=i386-pc
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if [ -e /proc/device-tree ]; then
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for x in /proc/device-tree/*; do
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if [ -e "$x" ]; then
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target="i386-ieee1275"
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fi
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done
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fi
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GRUB_OPTS="$GRUB_OPTS --target=$target"
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;;
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esac
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fi
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fi
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fi
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$GRUBNAME --modules="biosdisk part_msdos" $GRUB_OPTS $BOOT_DEV
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# This might be better factored out into a per-distro 'install-bootblock'
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# helper.
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if [ -d /boot/grub2 ]; then
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GRUB_CFG=/boot/grub2/grub.cfg
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elif [ -d /boot/grub ]; then
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GRUB_CFG=/boot/grub/grub.cfg
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fi
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DIST=`lsb_release -is`
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[ -n "$DIST" ]
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echo 'GRUB_TERMINAL="serial console"' >>/etc/default/grub
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echo 'GRUB_GFXPAYLOAD_LINUX=text' >>/etc/default/grub
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echo 'GRUB_CMDLINE_LINUX_DEFAULT="console=tty0 console=ttyS0,115200"' >>/etc/default/grub
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echo 'GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"' >>/etc/default/grub
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GRUB_MKCONFIG="grub2-mkconfig -o $GRUB_CFG"
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case $DIST in
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'Ubuntu'|'Debian')
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sed -i -e 's/\(^GRUB_CMDLINE_LINUX.*\)"$/\1 nofb nomodeset vga=normal"/' /etc/default/grub
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GRUB_MKCONFIG=update-grub
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;;
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'Fedora'|'CentOS')
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echo 'GRUB_CMDLINE_LINUX="nofb nomodeset vga=normal"' >>/etc/default/grub
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;;
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'openSUSE project')
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sed -i -e 's/\(^GRUB_CMDLINE_LINUX.*\)"$/\1 nofb nomodeset vga=normal"/' /etc/default/grub
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;;
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esac
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# os-prober leaks /dev/sda into config file in dual-boot host
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# Disable grub-os-prober to avoid the issue while running
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# grub-mkconfig
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# Setting a flag to track whether the entry is already there in grub config
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PROBER_DISABLED=
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if ! grep -qe "^\s*GRUB_DISABLE_OS_PROBER=true" /etc/default/grub; then
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PROBER_DISABLED=true
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echo 'GRUB_DISABLE_OS_PROBER=true' >> /etc/default/grub
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fi
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$GRUB_MKCONFIG
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# Remove the fix to disable os_prober
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if [ -n "$PROBER_DISABLED" ]; then
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sed -i '$d' /etc/default/grub
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fi
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RELEASE=`lsb_release -cs`
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[ -n "$RELEASE" ]
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# grub-mkconfig generates a config with the device in it,
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# This shouldn't be needed, but old code has bugs
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if [ $RELEASE = 'precise' ] || [ $RELEASE = 'wheezy' ]; then
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sed -i "s%search --no.*%%" $GRUB_CFG
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sed -i "s%set root=.*%set root=(hd0,1)%" $GRUB_CFG
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fi
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# force use of a LABEL:
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# NOTE: Updating the grub config by hand once deployed should work, its just
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# prepping it in a different environment that needs fiddling.
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sed -i "s%$PART_DEV%LABEL=${DIB_ROOT_LABEL}%" $GRUB_CFG
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sed -i "s%search --no-floppy --fs-uuid --set=root .*$%search --no-floppy --set=root --label ${DIB_ROOT_LABEL}%" $GRUB_CFG
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sed -i "s%root=UUID=[A-Za-z0-9\-]*%root=LABEL=${DIB_ROOT_LABEL}%" $GRUB_CFG
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if [ "$DIST" = 'Fedora' ] ; then
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if [ $(lsb_release -rs) = '19' ]; then
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sed -i "s%UUID=[A-Za-z0-9\-]*%LABEL=${DIB_ROOT_LABEL}%" /etc/fstab
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fi
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# Fix efi specific instructions in grub config file
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if [ -d /sys/firmware/efi ]; then
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sed -i 's%\(initrd\|linux\)efi /boot%\1 /boot%g' $GRUB_CFG
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fi
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fi
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}
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DIB_EXTLINUX=${DIB_EXTLINUX:-0}
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if [ "$DIB_EXTLINUX" != "0" ]; then
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install_extlinux
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else
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install_grub2
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fi
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