Iulian Musat wrote:
What exactly is the SCSI controller that you have?

adaptec 39160 SCSI card

Make sure you have the kernel module for it. I don't know details, but I think the big picture is this: the st modules that controls tapes uses the generic scsi module (scsi_mod) which in turn uses a module that can handle a specific SCSI controller.

For example, the aic7xxx module handles many SCSI Adaptec controllers. If this is the case try first:
lsmod | grep aic


You should see the aic7xxx module and scsi_mod, the generic scsi module that uses it.

I see the aic7xxx and scsi_mod modules loaded but when I rmmod any module insmod never loads it again. No error, just won't load it. The tape drive works fine when full up booted in RH AS 2.1, just not when booted in the recovery mode from the CD. I have a issue in with RH on this, I hope they have a solution...

Doug P

If you have this module, then unload it (rmmod aic7xxx) and then load it again (insmod aic7xxx), watching kernel messages (usually /var/log/messages). You may find clues about what is going on.

Also check the wires (do you have a terminator on the SCSI chain?).

Cheers,
-Iulian

Douglas Phillipson wrote:

I recently posted a question concerning attaching a DLT tape drive to a Dell 2650 running RH AS 2.1. The eventual solution was to install the OS with the tape drive attached because I couldn't get it to be recognized by adding it after the install.

In a related situation I've backed up the server with dump and have a DLT with all the partitions backed up. I then proceeded to rm -r /usr and attempt to restore the /usr partition. (server is not on line yet) I found that when booting the RH AS 2.1 CD and selecting the "recovery" mode, it nicely mounts the partitions for me under /mnt/sysimage but I have no access to the tape drive as the device is missing (/dev/st0). I've tried "insmod st" and "mknod /dev/st0 c 9 0" and I get no errors but the tape device doesn't seem to be there. How do those of you running servers do bare metal backup and restore?

I also tried booting a SuSE CD and I can see the tape drive with it but I can't mount the darn partitions with "mount -t ext3 /dev/sda7 /mnt" The device is there but it says "not a proper block device". I've also tried "timos", a nice version of Linux for recovery purposes and it recognizes the RAID and SCSI controllers and the DLT tape but consistantly hangs during the boot process so I never get a command prompt.

I can't seem to get there from here... Any help is greatly appreciated.

Perplexed

Doug P





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