Re: is booting (a SW RAID1) from a second IDE controller possible?
<quote who="Vinai Kopp">
> Hi list,
>
> I believe this is a BIOS limit but I hope I'm wrong. Here is my setup:
>
> Any idea how I could manage to make this possible?
try finding an upgrade to the bios or replace the board.
most boards i have seen have an option to boot from a "SCSI"
device(a PCI IDE controller is usually seen by the bios as
a SCSI card), or the more advanced ones support some boot protocol
that allows the bios and the PCI controller card to talk
to each other(have only seen this personally on serverboards with
ServerWorks chipsets and intel L440GX+ chipsets). I forget
the name of the protocol.
if you remove any ide disks from the onboard controller the
PCI controller may automatically re-map itself so it can
be bootable. depends on the card and the motherboard/bios
i think though.
other things could include making a bootable cd, or net
booting the machine, or in an extreme case it would be
possible to install a boot loader on an external SCSI
drive then remove the drive after the system is up, I've
"hot plugged" SCSI devices at least in kernel 2.2, its
pretty easy. just have to shut em off and remove them
from /proc/scsi/scsi before removing them. have not tried
a hard disk, only CDROM and tape drives.
nate
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