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Restore tape image to slightly different hardware - SCO

Hello, I've got a few Compaq ML-350's (G3's), some of them have RAID LC 2 controllers and some have HP Smart Array 641 controllers. Here's the situation: I've got tape images of my ML-350's with the Compaq RAID LC2 controllers. I've goten to the point where I can sucesfully unarchive the tapes to the hard disks of the HP Smart Array 641 controlled boxes, but, obviously, when I reboot it panics. So, I've tried the following: (this is after I 'cpio -ivcdumB < /dev/rct0' but before I reboot) cd /mnt/etc/conf/sdevice.d cat clad | sed s/Y/N/g > clad.new ; mv clad ...

  1. #1

    Default Restore tape image to slightly different hardware

    Hello,
    I've got a few Compaq ML-350's (G3's), some of them have RAID LC 2
    controllers and some have HP Smart Array 641 controllers. Here's the
    situation:

    I've got tape images of my ML-350's with the Compaq RAID LC2 controllers.
    I've goten to the point where I can sucesfully unarchive the tapes to the
    hard disks of the HP Smart Array 641 controlled boxes, but, obviously, when
    I reboot it panics.

    So, I've tried the following:
    (this is after I 'cpio -ivcdumB < /dev/rct0' but before I reboot)

    cd /mnt/etc/conf/sdevice.d
    cat clad | sed s/Y/N/g > clad.new ; mv clad clad.old ; mv clad.new clad
    cat ciss | sed s/N/Y/g > ciss.new ; mv ciss ciss.old ; mv ciss.new ciss
    cd /mnt/etc/conf/cf.d
    cat mscsi | sed s/clad/ciss/g > mscsi.new ; mv mscsi mscsi.old ; mv
    mscsi.new mscsi

    This was to no avail, any suggestions?

    - Perry


    Perry Whelan Guest

  2. #2

    Default Re: Restore tape image to slightly different hardware

    Perry Whelan <mebawi.rr.com> wrote:
    >Hello,
    >I've got a few Compaq ML-350's (G3's), some of them have RAID LC 2
    >controllers and some have HP Smart Array 641 controllers. Here's the
    >situation:
    >I've got tape images of my ML-350's with the Compaq RAID LC2 controllers.
    >I've goten to the point where I can sucesfully unarchive the tapes to the
    >hard disks of the HP Smart Array 641 controlled boxes, but, obviously, when
    >I reboot it panics.
    >So, I've tried the following:
    >(this is after I 'cpio -ivcdumB < /dev/rct0' but before I reboot)
    >cd /mnt/etc/conf/sdevice.d
    >cat clad | sed s/Y/N/g > clad.new ; mv clad clad.old ; mv clad.new clad
    >cat ciss | sed s/N/Y/g > ciss.new ; mv ciss ciss.old ; mv ciss.new ciss
    >cd /mnt/etc/conf/cf.d
    >cat mscsi | sed s/clad/ciss/g > mscsi.new ; mv mscsi mscsi.old ; mv
    >mscsi.new mscsi
    >This was to no avail, any suggestions?

    Don't do this. Use a Supertar: [url]http://aplawrence.com/Reviews/supertars.html[/url]

    --
    [email]tonyaplawrence.com[/email] Unix/Linux/Mac OS X resources: [url]http://aplawrence.com[/url]
    Get paid for writing about tech: [url]http://aplawrence.com/publish.html[/url]

    tony@aplawrence.com Guest

  3. #3

    Default Re: Restore tape image to slightly different hardware

    Tony Lawrence made comment on Fri Aug 22 14:47:47 2003 :
    > Perry Whelan <mebawi.rr.com> wrote:
    > >Hello,
    > >I've got a few Compaq ML-350's (G3's), some of them have RAID LC 2
    > >controllers and some have HP Smart Array 641 controllers. Here's the
    > >situation:
    >
    > >I've got tape images of my ML-350's with the Compaq RAID LC2 controllers.
    > >I've goten to the point where I can sucesfully unarchive the tapes to the
    > >hard disks of the HP Smart Array 641 controlled boxes, but, obviously, when
    > >I reboot it panics.
    >
    > >So, I've tried the following:
    > >(this is after I 'cpio -ivcdumB < /dev/rct0' but before I reboot)
    >
    > >cd /mnt/etc/conf/sdevice.d
    > >cat clad | sed s/Y/N/g > clad.new ; mv clad clad.old ; mv clad.new clad
    > >cat ciss | sed s/N/Y/g > ciss.new ; mv ciss ciss.old ; mv ciss.new ciss
    > >cd /mnt/etc/conf/cf.d
    > >cat mscsi | sed s/clad/ciss/g > mscsi.new ; mv mscsi mscsi.old ; mv
    > >mscsi.new mscsi
    >
    > >This was to no avail, any suggestions?
    >
    >
    > Don't do this. Use a Supertar: [url]http://aplawrence.com/Reviews/supertars.html[/url]
    Agree with Tony 100%
    One of the problems is yes you have twiddled the sdevice files but you
    still need to re-link the kernel for that to have any affect - as it
    looks as if the hard disk is mounted you can't.

    You could add both devices to the kernel - then make your tape image,
    then the restore should have them both - but it is a lot easier
    with one of the SuperTar's.

    Tom


    --
    ================================================== ======================
    Tom Melvin [email]tomtkrh.demon.co.uk[/email] [url]http://www.tkrh.demon.co.uk[/url]
    Veterinary Solutions Ltd Sysop Compuserve Unixforum
    ================================================== ======================
    Tom Melvin Guest

  4. #4

    Default Re: Restore tape image to slightly different hardware

    Perry Whelan wrote:
    >
    > Hello,
    > I've got a few Compaq ML-350's (G3's), some of them have RAID LC 2
    > controllers and some have HP Smart Array 641 controllers. Here's the
    > situation:
    >
    > I've got tape images of my ML-350's with the Compaq RAID LC2 controllers.
    > I've goten to the point where I can sucesfully unarchive the tapes to the
    > hard disks of the HP Smart Array 641 controlled boxes, but, obviously, when
    > I reboot it panics.
    How did you get the image onto the Smart Arra 641 disks? If you say
    "I used an emergency boot floppy from one of the 350's that is running
    on the 641 controller" then the following may have a chance:

    Boot the Emergency boot floppy with the 641 drivers in the kernel.
    Mount /dev/hd0root on /mnt. mount the Emergency boot floppy on /mnt/mnt.
    Mount /dev/boot on /mnt/stand. zcat /mnt/mnt/unix.Z (doing this from
    memory, you list /mnt/mnt and choose the compressed
    kernel) > /mnt/stand/unix.641. Check to see if the /mnt/dev/* files are
    from the backup image of the 641 image you are restoring.

    I suggest that you undo (or overwrite your changes listed below with a
    fresh restore from the backup tape) then at the boot: prompt type
    unix.641 to boot the kernel copied from the Emergency boot floppy.

    At this point you may be able to get to maintenance mode and perform the
    boot load install for the 641 as specified by "adding 641 drivers to a
    running system." Change /etc/conf/cf.d/mscsi to change the root disk
    controller from the RAID LC2 controller to the 641, relink, and reboot.

    There is a TA with specific instructions for changing the root disk
    controller. Check it out. Normally, I would perform the btldinstall
    on the RAID LC2 system and add a disk on the 641 controller (not
    necessarily installed in the machine) and rebuild the kernel BEFORE
    making the tape image to be moved to the new system.
    >
    > So, I've tried the following:
    > (this is after I 'cpio -ivcdumB < /dev/rct0' but before I reboot)
    >
    > cd /mnt/etc/conf/sdevice.d
    > cat clad | sed s/Y/N/g > clad.new ; mv clad clad.old ; mv clad.new clad
    > cat ciss | sed s/N/Y/g > ciss.new ; mv ciss ciss.old ; mv ciss.new ciss
    > cd /mnt/etc/conf/cf.d
    > cat mscsi | sed s/clad/ciss/g > mscsi.new ; mv mscsi mscsi.old ; mv
    > mscsi.new mscsi
    >
    > This was to no avail, any suggestions?
    >
    > - Perry
    --

    Steve Fabac
    S.M. Fabac & Associates
    816/765-1670
    Steve Fabac Guest

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