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update_bootloaders: use uuids for legacy boot.

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BUG=chromium-os:14127,chromium-os:17184
TEST=Adhoc
Build a regular image (for Alex) and boot it on a Dogfood machine (which uses
legacy boot). Check dmesg for PARTUUID. Unpack partitions, mount partition 12,
and check for root=PARTUUID= in /efi/grub/grub.cfg (it should be there instead
of root=/dev/$linuxpart).

Change-Id: Ie403632f227d514a5876f8338afa4ad80708ed55
Signed-off-by: Elly Jones <ellyjones@chromium.org>
Reviewed-on: http://gerrit.chromium.org/gerrit/5668
Reviewed-by: Will Drewry <wad@chromium.org>
This commit is contained in:
Elly Jones 2011-08-10 15:59:36 -04:00
parent 4dd4c54ccb
commit dfd369431d
1 changed files with 19 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
update_bootloaders.sh
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@ -71,6 +71,12 @@ FLAGS "$@" || exit 1
eval set -- "${FLAGS_ARGV}"
set -e
part_index_to_uuid() {
local image="$1"
local index="$2"
cgpt show -i "$index" -u "$image"
}
# If not provided by chromeos-common.sh, this will update all of the
# boot loader files (both A and B) with the data pulled
# from the kernel_partition. The default boot target should
@ -81,6 +87,7 @@ if ! type -p update_x86_bootloaders; then
local kernel_cmdline="$2"
local esp_fs_dir="$3"
local template_dir="$4"
local to="$5"
# Pull out the dm="" values
dm_table=
@ -94,17 +101,24 @@ if ! type -p update_x86_bootloaders; then
cros_flags="cros_legacy cros_debug"
fi
root_a_uuid="PARTUUID=$(part_index_to_uuid "$to" 3)"
root_b_uuid="PARTUUID=$(part_index_to_uuid "$to" 5)"
# Rewrite grub table
grub_dm_table_a=${dm_table//${old_root}/\/dev\/\$linuxpartA}
grub_dm_table_b=${dm_table//${old_root}/\/dev\/\$linuxpartB}
grub_dm_table_a=${dm_table//${old_root}/${root_a_uuid}}
grub_dm_table_b=${dm_table//${old_root}/${root_b_uuid}}
sed -e "s|DMTABLEA|${grub_dm_table_a}|g" \
-e "s|DMTABLEB|${grub_dm_table_b}|g" \
-e "s|cros_legacy|${cros_flags}|g" \
"${template_dir}"/efi/boot/grub.cfg |
sudo dd of="${esp_fs_dir}"/efi/boot/grub.cfg
sed -e "s|/dev/\\\$linuxpartA|${root_a_uuid}|g" \
-e "s|/dev/\\\$linuxpartB|${root_b_uuid}|g" \
"${template_dir}"/efi/boot/grub.cfg |
sudo dd of="${esp_fs_dir}"/efi/boot/grub.cfg
# Rewrite syslinux DM_TABLE
syslinux_dm_table_usb=${dm_table//${old_root}/${FLAGS_usb_disk}}
syslinux_dm_table_usb=${dm_table//${old_root}/${root_a_uuid}}
sed -e "s|DMTABLEA|${syslinux_dm_table_usb}|g" \
-e "s|cros_legacy|${cros_flags}|g" \
"${template_dir}"/syslinux/usb.A.cfg |
@ -205,7 +219,8 @@ if [[ "${FLAGS_arch}" = "x86" ]]; then
update_x86_bootloaders "${old_root}" \
"${kernel_cfg}" \
"${ESP_FS_DIR}" \
"${FLAGS_from}"
"${FLAGS_from}" \
"${FLAGS_to}"
# Install the syslinux loader on the ESP image (part 12) so it is ready when
# we cut over from rootfs booting (extlinux).