a1beca7b44
If you have an EFI host but the image doesn't have the EFI modules installed the grub-install command will fail in case the --target argument is not set. The problem is that the grub-install script will check whether the /sys/firmware/efi file exists or not to determine if it's an EFI installation, but this value comes from the host, so this patch will look for the /sys/firmware/efi file and will also check if the EFI modules are installed in the image, if not set the --target to a non-efi platform. Change-Id: I4481b43e4a8fe4144be9c7eb9d9c618bbb2df21e
93 lines
3.1 KiB
Bash
Executable File
93 lines
3.1 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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install-packages grub-pc
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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 "$GRUBNAME" ]; then
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GRUBNAME="bash -x `which grub2-install`"
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fi
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if [ -z "$GRUBNAME" ]; then
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echo "NO grub-install or grub2-install found"
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exit 1
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fi
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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 $IMAGE_BLOCK_DEVICE | sed -e 's/p1//')
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GRUB_OPTS=${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* ]]; 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 $BOOT_DEV
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# This might be better factored out into a per-distro 'install-bootblock'
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# helper.
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if [ -f "/boot/grub/grub.cfg" ] ; then
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GRUB_CFG=/boot/grub/grub.cfg
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elif [ -f "/boot/grub2/grub.cfg" ] ; then
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GRUB_CFG=/boot/grub2/grub.cfg
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fi
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DIST=`lsb_release -is`
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[ -n "$DIST" ]
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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' ] ; then
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# Replace the search attempt with a hardcoded root as the Ubuntu reference
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# images use.
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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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fi
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