On Thu, 2007-01-04 at 16:45 -0500, Konrad Rzeszutek wrote:
On Thu, Jan 04, 2007 at 12:16:28PM -0800, Pete Zaitcev wrote:
> Gentlemen:
>
> IBM Bladecenter is killing me slowly for 4th year in a row. But now it
> seems a good time to ask, why don't we stop reloading usb-storage?
> Since the mount-by-label is essentially mandatory with the migration
> to SATA, I do not see how having sda pointing to a floppy can harm
> anything anymore.
Peter Jones will probably know this better, but how does this relate
to creation of 'devices.map' and 'grub.conf' file? I gather that
the devices.map would then have:
(hd0) /dev/sdb
and since this file is used by GRUB to figure out which disk
is what device, this could screw GRUB up b/c (hd0) would point
to a non-existing device (sda would have been the right drive).
No, grub handles this fine. The grub device.map just tells the
grub-install script which device in /dev to open and what BIOS drive to
treat it as where (hd0) = 0x80, (hd1) = 0x81, etc. If the first scsi
disk is mapped to /dev/sdb, but it is in fact the boot disk, then the
above device line works fine as it has grub write the various boot stage
binary bits to /dev/sdb and causes the binary bits to ask for bios
device 0x80 when actually used to boot the machine.
>
> I'm adding Doug to cc: in case he knows a case where LVM2 encodes
> device minors into an on-disk format.
>
> Yours,
> -- Pete
>
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--
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