[lug] SW Raid question

[dio2002 at indra.com]

> So I learned a bit more.  device (hd0) /dev/sdb really seems to mean,
> "while in this grub session anytime I say hd0 write it to /dev/sdb
> instead of whatever you thought hd0 was before"  So, you both were right.
> -----------------------------------

yeah.. nice.  i really appreciate you walking through those tests.  it's
good to have some verification to what i thought was correct.  now i can
feel more comfortable about it moving forward.

> Conclusions:  If you set up sw raid outside of the installer, make sure
> grub bits get installed to the mbr of all drives used.  If you do set up
> your machine with sw raid at install time, the drive will have the right
> grub bits.  If a disk fails, as part of adding it back in, make sure you
> put the grub bits back.

one addition to that.. after install, grub WILL install the PRIMARY
install disk correctly.  but i believe you MUST still manually grub the
secondary mirror.  install does not do that from what i understand.

> I have no idea what is going on at those three offsets.

me either.. and i'm not sure i want to know ;-)

thanks for the tests