esp: TempMount ESP if not already mounted#1126
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In the composefs Grub case we have `/sysroot/boot` and config related to Grub is stored in the directory. We were masking `/sysroot/boot` with an ESP mount which caused bootupd to write incorrect UUID (the ESP's) in `bootuuid.cfg` file rendering the system unbootable. Fix this by mounting the ESP at a temp location if we don't find it already mounted at predetermined locations Signed-off-by: Pragyan Poudyal <pragyanpoudyal41999@gmail.com>
cgwalters
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Jul 22, 2026
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OK, makes sense to me.
However, one clear thing here is we should still probably push for adding /efi into our base images, because then this stuff becomes clearer.
Also that said: can't we just open the mount as a fd using the new mount api? I'm not aware of a strong reason for us to attach it to the namespace at all - and that would entirely avoid these bugs.
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In the composefs Grub case we have
/sysroot/bootand config related to Grub is stored in the directory. We were masking/sysroot/bootwith an ESP mount which caused bootupd to write incorrect UUID (the ESP's) inbootuuid.cfgfile rendering the system unbootable.Fix this by mounting the ESP at a temp location if we don't find it already mounted at predetermined locations