Plugin efibootguard-boot doesn't support to specify root parameter with unified kernel image

["Mou, ChengShu(Ben)" <Chengshu.Mou@siemens.com>]

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Hi all,

I have a target image with following partitions:

|- bootloader (efibootguard)
|- system A (linux.efi)
|- system B (linux.efi)
|- root FS A
|- root FS B

My plan is to use plugin efibootguard-boot to generate linux.efi respectively for system A/B and they can mount related root FS. So, I need to specify root parameter respectively in linux.efi.
After checking the code, I found that there is only 1 place to specify it, bootloader command with option --append in wks file. This method can only specify 1 root parameter.

I have tried to modify this plugin as following:
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Within this modification, linux.efi could contain its own root parameter.

I don't know if it is a right way, please let me know if you have some suggestions. Thanks in advance.

With best regards,
Cheng Shu Mou

Siemens Ltd., China
RC-CN DI FA BL IE
Tianyuan road No.99
611731 CHENGDU, China
mailto:chengshu.mou@siemens.com
www.siemens.com<https://siemens.com>
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