no linux after reboot

[Bob McClure Jr]

On Sat, Dec 10, 2005 at 04:19:45AM +1300, Grant Allan wrote:
> > On Sat, Dec 10, 2005 at 03:18:32AM +1300, Grant Allan wrote:
> >> >> hi,
> >> >>
> >> >> i have some more news: grub.conf looks OK to me.
> >> >> but grub-install generates an error as follows:
> >> >>    /dev/hdd1 does not have any corresponding BIOS drive
> >> >>
> >> >> does that maybe mean that i should jump into BIOS and get it to
> >> >> autodetect
> >> >> my hard drives?  i forgot to do that yesterday.
> >> >
> >> > It's probably already doing that.  It's unrelated.
> >> >
> >> >> cheers,
> >> >> grant
> >> >
> >> > Just another detail to take care of what the installer missed.  After
> >> > you have chrooted to /mnt/sysimage, edit /boot/grub/device.map to add
> >> > the line
> >> >
> >> > (hd3)     /dev/hdd
> >> >
> >> > assuming "hd3" is not mapped to some other device.  Note that in
> >> > grub.conf, numbering starts at 0, not 1.  Then do the grub-install
> >> > thing.  If that doesn't work, you may need to tell us more about the
> >> > drive and partitioning arrangement, and post grub.conf, if you can.
> >> >
> >> > Cheers,
> >> > --
> >> > Bob McClure, Jr.
> >>
> >> Hi,
> >>
> >> Yay, I'm no longer getting windows!  Furthermore, I have learned today
> >> about bottom posting.
> >
> > Hurray!  And don't be afraid to trim unrelated or unnecessary cruft
> > like mailing list footer and excess lines in the sigs.
> >
> >> However, I now have the following on rebooting my machine:
> >>
> >> GRUB Loading stage1.5
> >> GRUB loading, please wait...
> >> Error 21
> >>
> >> To make sure I tell you the right stuff regarding partitions & disks,
> >> please can you tell me if there is a way to query for this info (e.g.
> >> using linux rescue)?
> >
> > Hmm.  I dunno.  If you have another machine on your local net, maybe
> > you could start up networking during the rescue startup, then chroot
> > to /mnt/sysimage, and then you could scp (secure cp using SSH) the
> > info to another machine.
> >
> >> I have both put old and new hard drives on the one ribbon, but by my
> >> understanding that doesn't add up with the name /hdd, so I'd like to
> >> find
> >> out for sure.
> >
> > That's correct.  Here's how the labeling goes:
> >
> > Controller  Drive   Device   Grub map
> > ---------   -----   ------   --------
> > Primary     Master  /dev/hda (hd0)
> > Primary     Slave   /dev/hdb (hd1)
> > Secondary   Master  /dev/hdc (hd2)
> > Secondary   Slave   /dev/hdd (hd3)
> >
> > I might also mention that, in general, jumpering drives as Cable
> > Select (CS) is evil.  Just jumper the drives as master and slave as
> > appropriate.  That _always_ works.
> >
> >> Thanks again,
> >> Grant
> >
> > Cheers,
> > --
> > Bob McClure, Jr.             Bobcat Open Systems, Inc.
> 
> ok,
> 
> so since my second hard-drive is on the same ribbon as /dev/hda, i expect
> it to be hdb, not hdd.
> 
> this makes it odd that calling grub-install generated an error that
> "/dev/hdd1 does not have any corresponding BIOS drive"

Yeah, it's not clear where that came from if there's no reference to
it in the grub.conf

> is it possible to fire up that druid thingy from the rescue cd to see if
> the names are mixed up?

I don't think it's that bright, and I think it's useful only during
installation.  I'd just make sure that grub.conf refers to the
primary-slave drive as variously /dev/hdb, (hd1), and the like, and
that device.map has this line in it:

(hd1)     /dev/hdb

> cheers,
> grant

Cheers,
-- 
Bob McClure, Jr.             Bobcat Open Systems, Inc.
robertmcclure at earthlink.net  http://www.bobcatos.com
Peace at any price is inflationary.