So far we seem to hit a few different problems when upgrading
kernels.
1) mkinitrd may need changing, e.g. the raid4, raid5 and raid6
modules were combined into raid456 a while ago, breaking
mkinitrd completely on raid machines.
2) some modules may now work that were broken, but they need
new options, like snd-hda-intel which now works on my acer
notebook if "probe_mask=1" is added to the module options.
3) like (2) but options may need to be removed. suddenly drivers
that worked refuse to load becuase they no longer recognize
options that used to be valid.
I'm especially concerned about (2) and (3) because there doesn't
seem to be a system in place to update driver options after the
system is installed. We can collect the needed changes but the
logic to do all of this is in anaconda, and can only be applied
during system install, as far as I can tell.
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