On Fri, 2004-09-10 at 11:46, Jeremy Conlin wrote: > Unfortunately, my SCSI devices are 3 hard drives, a CD-ROM and a tape > drive. I tried to boot without the CD-ROM and tape drive, but that > didn't work. Of course I couldn't boot without the hard drives. > > Jeremy > If you have improper scsi termination this can occur. Newer drivers are less fault tolerant (also known as more rule enforcing :-) ). On a scsi bus you are required to have exactly 2 termination points. These are (usually) the adapter (self terminated) and the device at the furthest end of the cable (either a device or a terminator on the cable itself) If you have more terminators, (or less,) the driver will be unable to identify attached devices and will often hang as a result. A second common cause of this is having more than one device with the same scsi ID, but your description implies this was working previously, so I do not think this wold be the reason. > > On Sep 9, 2004, at 5:33 PM, Timothy Murphy wrote: > > > Jeremy Conlin wrote: > > > >> I recently installed Fedora Core 2 on a Dell PowerEdge 2400 server > >> that > >> previously ran Red Hat 9. The installation appears to proceed > >> normally. The problem is it never boots entirely. It hangs with the > >> following as the last message (after removing quiet mode): > >> > >> Loading sd_mod.ko module > >> Loading aic7xxx.ko module > >> > >> So I think this might be related to the SCSI adapter(s) I have in the > >> machine. I have searched far and wide on this great world wide web of > >> ours and have found many issues that seem related. I have even posted > >> messages on this mailing list when I thought it was a different > >> problem. I am starting a new thread with a (hopefully) clearer > >> subject. > > > > Is the SCSI device your main disk, or is it inessential? > > I'm no guru, but if I had this error I would try the following: > > > > (1) Try booting with "linux noprobe". > > > > (2) Try adding scsi_adapter=off to /etc/modprobe.conf > > > > (3) Try moving the aic7xxx entries from /lib/modules/<kernel version> > > > > (3) Try booting with "linux pci=off" > > > > (4) If the SCSI device is inessential, remove the SCSI card > > > > If you get the machine to boot, I would re-compile the kernel, > > perhaps with the SCSI driver in the kernel proper rather than a module. > > > > > > > > > > -- > > Timothy Murphy > > e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie > > tel: +353-86-2336090, +353-1-2842366 > > s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland > > > > > > -- > > fedora-list mailing list > > fedora-list@xxxxxxxxxx > > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list > > > > >
