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Update Grub on component devices if /boot is on mdraid device #1093

Merged
merged 2 commits into from
Jul 17, 2023
Merged

Update Grub on component devices if /boot is on mdraid device #1093

merged 2 commits into from
Jul 17, 2023

Commits on Jul 17, 2023

  1. Update Grub on component drives if /boot is on md device 

    On BIOS systems, previously, if /boot was on md device such as RAID
consisting of multiple partitions on different MBR/GPT partitioned
drives, the part of Grub residing in the 512 Mb after MBR was only
updated for one of the drives. Similar situation occurred on GPT
partitioned drives and the BIOS boot partition. This resulted in
outdated GRUB on the remaining drives which could cause the system to be
unbootable.

Now, Grub is updated on all the component devices of an md array if Grub
was already installed on them before the upgrade.

Jira: OAMG-7835
BZ#2219544
BZ#2140011
    @matejmatuska
    matejmatuska committed Jul 17, 2023
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  2. mdraid.py lib: Check if /usr/sbin/mdadm exists 

    Praviously the check was implemented using OSError return from `run`
function. However, in this particular case it's not safe and leads
to unexpected behaviour. Check the existence of the file explicitly
instead prior the `run` function is called.

Update existing unit-tests and extend the test case when mdadm
is not installed.
    @pirat89
    pirat89 committed Jul 17, 2023
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