Quoting Steve Bergman <steve@xxxxxxxx>:
> Hi,
>
> I have a client that insists on going with software rather than
> hardware raid1 to save a few dollars.
>
> Can Centos 4.2 do Boot and Root on software Raid1?
Yes on i386. No on ia64 (partition where /boot dir is can't be on
RAID-1). Don't know for x86_64 (should be).
> I've heard criticisms of Grub and bootable RAID. Also, if it is not
> set up to work out of the box, I'd like to try to talk them out of it.
Yes, Anaconda had this long standing bug of not handling /boot on RAID-1
properly when installing Grub. With LILO it worked perfectly for a very long
time out of the box. I don't know if Anaconda/Grub problem was fixed
recently.
Even if it wasn't it is relatively trivial to adjust grub configuration and
install it on both drives.
> I've been down that road before. If I go nonstandard, by the time I
> actually need to boot from the second drive in an emergency, I've
> forgotten the special procedure.
Depending on the type of failure, special procedure might not be needed. Even
if it is, it is relatively trivial (and I wouldn't really call it special
procedure) ;-)
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