[Bug 392510] Re: Dual-boot install using mdadm root fails to boot

[Christian Gunning]

Just to reiterate, I achieved the desired results described in the
original bug after extensive research, trial and error before i filed
the bug.

"To get rid of dmraid you just don't install it.  The live cd doesn't
have the dmraid package preloaded"

Ok.  But that's not at issue.  The alternate install cd was used,
which *does* install dmraid by default. See original bug.

" I'm sure getting rid of dmraid is as simple as un-installing it
through apt and rebuilding the initramfs."

Not true! Perhaps this is an upstream issue, but it's very unexpected
behavior that "apt-get remove dmraid" does ***not*** purge dmraid from
initramfs. Uninstall and reinstall of mdadm is required.  See original
bug for discussion, esp. link to debian bug.

> Also you could purge the fakeraid from the drives by clearing the
> metadata at the end of the disks and then dmraid wouldn't even load.

Ok, but that defeats the goal stated in the original bug, since
windows could not use its default configuration of fakeraid.

I understand that the interaction between dmraid, mdadm, the 2
different install disks, initramfs, bios and windows is non-trivial,
but none of the responses to date address the original bug, and some
contain false assertions.

-- 
Dual-boot install using mdadm root fails to boot
https://bugs.launchpad.net/bugs/392510
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