[OE-core] [wic][PATCH v2 0/9] UUID support

[Ed Bartosh]

Hi,

Please, review implementation of partition UUID support in wic.

It contains two options: --part-type and --use-uuid
--part-type allows to set partition type UUID. It was incorrectly
implemted in wic and now it's hopefully fixed.

--use-uuid makes wic to generate random globally unique identifier
(GUID) for the partition and configure bootloader to boot from it
using root=PARTUUID=<GUID> in kernel command line.

This technique makes boot process more deterministic and reliable
for at least two reasons:
- It allows to boot the same image from different devices
- It fixes possible boot issues caused by using device names in
  kernel commandline as GUID doesn't change unlike device names.


Ed Bartosh (9):
  wic: Add --use-uuid partition option
  wic: Generate random uuid for partition
  wic: Fix format string
  wic: Refactored getting root device name
  wic: Add parameter 'uuid' to Image.add_partition method
  wic: Set type GUID and UUID for partition
  wic: Use partition UUID in directdisk-gpt
  wic: oe-selftest: Configure testing of gpt/UUID image
  wic: Add help for --part-type and --use-uuid options

 meta/lib/oeqa/selftest/wic.py                      |  4 +--
 scripts/lib/image/canned-wks/directdisk-gpt.wks    |  2 +-
 scripts/lib/image/help.py                          |  9 +++++++
 scripts/lib/wic/imager/direct.py                   | 31 ++++++++++------------
 .../lib/wic/kickstart/custom_commands/partition.py | 21 ++++++++++++++-
 scripts/lib/wic/plugins/source/bootimg-efi.py      |  6 ++---
 scripts/lib/wic/plugins/source/bootimg-pcbios.py   |  3 +--
 .../lib/wic/plugins/source/rootfs_pcbios_ext.py    |  3 +--
 scripts/lib/wic/utils/partitionedfs.py             | 20 ++++++++++++--
 9 files changed, 68 insertions(+), 31 deletions(-)

--
Ed