We are using software raided partitions, including the root partition on
some of our server systems.
We normally have multiple root partitions to keep the previous Fedora
version available so we can reboot into an older version.
We have an issue in that the kernels appear to require the command line
option "rd.auto" for the older systems to boot with the rootfs using
software raid. When we use grub2-mkconfig (or update a kernel which I
guess also uses this) the produced /boot/grub2/grub.cfg file does not
have "rd.auto" in the kernel command line and so the older systems will
not boot.
In fact no kernel options specified in either the old systems
/etc/kernel/cmdline or /etc/default/grub are added to the grub.cfg for
those systems.
I have added ‘LPARAMS="rd.auto ${LPARAMS}"’ to /etc/grub.d/30_os-prober
to work around this, but is there a way kernel command line options for
probed systems should be setup in grub properly ?
--
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