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feat(build_library): reintroduce A/B menu.lst

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reintroduce unique A/B menu.lsts to work around the kexec problems that
we have. Essentially instead of always using boot_kernel on pvgrub
systems use the A/B kernels installed at update time to the boot
partition.
This commit is contained in:
Brandon Philips 2013-07-21 22:30:46 -07:00
parent 138e8eb715
commit 836ffc9327
1 changed files with 14 additions and 3 deletions
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17
build_library/create_legacy_bootloader_templates.sh
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@ -72,21 +72,32 @@ if [[ "${FLAGS_arch}" = "x86" || "${FLAGS_arch}" = "amd64" ]]; then
cat <<EOF | sudo dd of="${GRUB_DIR}/menu.lst.A" 2>/dev/null
timeout 0
title CoreOS A Kernel
root (hd0,0)
kernel /syslinux/vmlinuz.A ${common_args} root=gptprio: cros_legacy
title CoreOS B Kernel
root (hd0,0)
kernel /syslinux/vmlinuz.B ${common_args} root=gptprio: cros_legacy
title CoreOS bootengine
root (hd0,0)
kernel /syslinux/vmlinuz-boot_kernel ${common_args} root=gptprio: cros_legacy
title CoreOS A
title CoreOS A Root Rescue
root (hd0,0)
kernel /syslinux/vmlinuz.A ${common_args} root=${ROOTA} cros_legacy
title CoreOS B
title CoreOS B Root Rescue
root (hd0,0)
kernel /syslinux/vmlinuz.B ${common_args} root=${ROOTB} cros_legacy
EOF
info "Emitted ${GRUB_DIR}/menu.lst.A"
sudo cp ${GRUB_DIR}/menu.lst.A ${GRUB_DIR}/menu.lst.B
cat <<EOF | sudo dd of="${GRUB_DIR}/menu.lst.B" 2>/dev/null
default 1
EOF
sudo sh -c "cat ${GRUB_DIR}/menu.lst.A >> ${GRUB_DIR}/menu.lst.B"
info "Emitted ${GRUB_DIR}/menu.lst.B"
sudo cp ${GRUB_DIR}/menu.lst.A ${GRUB_DIR}/menu.lst