185 lines
6.0 KiB
Bash
Executable File
185 lines
6.0 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 -e
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set -x
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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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MBR=/usr/share/syslinux/mbr.bin
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if [ ! -f $MBR ]; then
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MBR=/usr/lib/syslinux/mbr.bin
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if [ ! -f $MBR ]; then
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echo "mbr.bin (from SYSLINUX) not found."
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exit 1
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fi
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fi
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dd if=$MBR of=$BOOT_DEV
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mkdir -p /boot/syslinux
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extlinux --install /boot/syslinux
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if [ -f /etc/redhat-release ]; then
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kernel=$(ls -1rv /boot/vmlinuz* | head -1)
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initrd=$(ls -1rv /boot/initramfs* | head -1)
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elif [ -f /etc/SuSE-release ]; then
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kernel=$(ls -1rv /boot/vmlinuz* | head -1)
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initrd=$(ls -1rv /boot/initrd* | head -1)
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elif [ -f /etc/debian_version ]; then
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kernel=$(ls -1rv /boot/vmlinuz*generic | head -1)
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initrd=$(ls -1rv /boot/initrd*generic | head -1)
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# in case files with "generic" suffix were not found, fall back to default
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kernel=${kernel:-$(ls -1rv /boot/vmlinuz* | head -1)}
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initrd=${initrd:-$(ls -1rv /boot/initrd* | head -1)}
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else
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echo "Unable to find kernel and initram"
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exit 1
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fi
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cat > /boot/syslinux/syslinux.cfg<<_EOF_
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DEFAULT linux
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LABEL linux
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KERNEL $kernel
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APPEND ro root=LABEL=cloudimg-rootfs console=tty0 console=ttyS0,115200
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INITRD $initrd
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_EOF_
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}
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function install_grub2 {
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# Check for offline installation of grub
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if [ -f "/tmp/grub/install" ] ; then
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source /tmp/grub/install
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else
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install-packages grub-pc
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fi
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# XXX: grub-probe on the nbd0/loop0 device returns nothing - workaround, manually
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# specify modules. https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1073731
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GRUBNAME=`which grub-install` || echo "trying grub2-install"
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if [ -z "$GRUBNAME" ]; then
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GRUBNAME="bash -x `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=console' >>/etc/default/grub
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echo 'GRUB_GFXPAYLOAD_LINUX=text' >>/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')
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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/\(^GRUB_CMDLINE_LINUX.*\)"$/\1 nofb nomodeset vga=normal"/' /etc/default/grub
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;;
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esac
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$GRUB_MKCONFIG
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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=cloudimg-rootfs%" $GRUB_CFG
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sed -i "s%search --no-floppy --fs-uuid --set=root .*$%search --no-floppy --set=root --label cloudimg-rootfs%" $GRUB_CFG
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sed -i "s%root=UUID=[A-Za-z0-9\-]*%root=LABEL=cloudimg-rootfs%" $GRUB_CFG
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if [ "$DIST" = 'Fedora' ] ; then
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# enable serial console
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sed -i "s%LABEL=cloudimg-rootfs%LABEL=cloudimg-rootfs console=tty0 console=ttyS0,115200%" $GRUB_CFG
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if [ $(lsb_release -rs) = '19' ]; then
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sed -i "s%UUID=[A-Za-z0-9\-]*%LABEL=cloudimg-rootfs%" /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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