Re: Moving from IDE to SCSI

[Rick Stevens <rstevens vitalstream com>]

Tim Currie wrote:
> ...sorry to butt in, Rick; I think the problem is lilo is confused about 
> where the kernel is, or was, or whatever, or possibly on what drive's 
> MBR it should install itself. The safest, simplest way to solve this is, 
> I think, to follow your instructions without the IDE on/in/enabled. If 
> neither lilo nor the BIOS can see the IDE drive, thay can't write to it 
> and include it in the boot path. Try this, Paul: disable/disconnect the 
> IDE drive, boot from CDROM, and do the "linux root=/dev/sda? noinitrd 
> ro" thing (I'm new to RedHat, Slackware's rescue mode is described, so 
> read the CDROM boot screen carefully for more relevant instructions). At 
> this point you should be running off the SCSI drive, having booted a 
> kernel off the CDROM. Then check your lilo.conf and run lilo. 
> Alternately, you could boot all the way into the CDROM in rescue mode 
> (however that manifests itself in RedHat), mount your system partition 
> and follow Rick's instructions.
>
> Don't foget, Paul: if you put the IDE drive back in and you haven't told 
> your bios to look for a SCSI boot device first, the problem will, in all 
> probability, come right back. If you can't specify boot order, you have  
> a few choices: flash your motherboard bios to a rev that will allow boot 
> order changes, buy a new motherboard, or leave the IDE drive out.
>
> If you're not intending to use the IDE drive after you get the system 
> running, just take the stupid thing out and use it for a paperweight. Or 
> trade it to someone for a SCSI drive. I hope this helps.

That's it.  Those specific lilo errors indicate that the geometry is
screwed up on the boot drive.  This can happen if you change the drive
layout.  Do what Tim says, disable the IDE completely, boot the CD in
rescue mode, then chroot and do the lilo.

> Paul Lewis wrote:
>
> > On 2003.08.25 18:49 Rick Stevens wrote:
> >
> > > You need to copy your /etc/lilo.conf file to the /etc directory of
> > > your SCSI disk,  then:
> > >
> > >     chroot (mountpoint of your SCSI drive)
> > >     lilo -v
> > >     exit
> > >
> > > Disable the IDE and see if the SCSI will now boot.
> >
> >
> >
> > Rick, thanks for your reply. Tried your suggestion any time I disable 
> > the IDE drive the system refuses to boot the most common result is 
> > variations on the 'LILO' prompt.
> >
> > For example,
> >
> > LI
> >
> > or
> >
> > LI 01 01 01 01 01 01 01 01
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- Rick Stevens, Senior Systems Engineer     rstevens vitalstream com -
- VitalStream, Inc.                       http://www.vitalstream.com -
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-        God is real...........unless declared integer or long       -
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