initramfs: Sync recovery language translations

Updated the README -> README.md to be more specific on how to get the
translations.

Added two new languages:
- am: Amharic
- sw: Swahili

BUG=chromium:901068
TEST=modified select_locale to return other languages (since we can't change the
RO firmware easily). Build a recovery image with USB config file and installed
it and all strings where showing fine.

Change-Id: I85d9bab9c8554b65911078488e0c45688c4a95d1
Reviewed-on: https://chromium-review.googlesource.com/1316469
Commit-Ready: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
55 files changed
tree: f206b191a00d01105746d56ea1c74c263ec7b085
  1. common/
  2. factory_netboot/
  3. factory_shim/
  4. recovery/
  5. test/
  6. .gitignore
  7. LICENSE
  8. Makefile
  9. OWNERS
  10. README.md
README.md

Chromium OS initramfs

Build logic for creating standalone initramfs environments.

See the README files in the respective subdirs for more details.

To Use

Normally you wouldn't build in this directory directly. Instead, you would build the chromeos-initramfs package with the right USE flags. e.g.:

$ USE=recovery_ramfs emerge-$BOARD chromeos-initramfs

That will install the cpio initramfs files into the sysroot for you to build into a kernel directly. The various build scripts would then be used to make the right kernel/image using those (e.g. mod_image_for_recovery.sh).

To Make

You could build these by hand for quick testing. Inside the chroot:

$ make SYSROOT=/build/$BOARD BOARD=$BOARD <target>

That will create the cpio archives for you.

To Debug

It is possible to debug few of the initramfs targets in QEMU. Read test/README.md for more information.

Also, here is a shortcut for developing/debugging graphical bits in initramfs, without having to create a full image for every iteration.

After emerge-$BOARD, find your initramfs package from chroot /build/$BOARD/var/lib/initramfs and copy to a running DUT, for example /tmp/recovery_ramfs.cpio.xz, then do followings on DUT:

  1. mount -o remount,exec /mnt/stateful_partition
  2. mkdir /mnt/stateful_partition/test; cd /mnt/stateful_partition/test
  3. xzcat /tmp/XXXXXX_ramfs.cpio.xz | cpio -iv
  4. stop ui; kill $(pidof frecon)
  5. bind mount /dev, /proc, /sys and /tmp in /mnt/stateful_partition/test
  6. chroot /mnt/stateful_partition/test/init
  7. Iterate.