Removing a patch - Solaris

This is a discussion on Removing a patch - Solaris ; Can someone tell me how to remove a patch that has caused an Solaris 10 x86 system to become unbootable? Actually, I need to back out a handful of patches to get back to a running state. I can get ...

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Thread: Removing a patch

  1. Removing a patch

    Can someone tell me how to remove a patch that has caused an Solaris 10 x86
    system to become unbootable? Actually, I need to back out a handful of
    patches to get back to a running state. I can get to GRUB which gives me a
    choice of booting the system or going into failsafe. If I try to boot into
    the system, I get the copyright lines displayed, a momentary pause then a
    whole bunch of information is displayed for half a second then the system
    reboots. I can just make out at the top of the screen something about panic
    but it's too fast to really see anything.

    I've tried reinstalling the OS with the upgrade option "back" to the
    unpatched 06/06 cd's but no joy. I'm about to wipe the drives and
    re-install from scratch again, for about the 4th time in two months.

    I don't suppose there's a log file anywhere that would contain the error
    messages, either. I'm able to check the /var/adm/messages and
    /var/log/syslog files but that doesn't look to have anything useful in them.

    TIA
    BobW



  2. Re: Removing a patch

    Bob Woodward wrote:
    > Can someone tell me how to remove a patch that has caused an Solaris 10 x86
    > system to become unbootable? Actually, I need to back out a handful of


    boot from CD, mount the root partition, e.g. in /mnt then
    patchrm -R /mnt

    > I've tried reinstalling the OS with the upgrade option "back" to the
    > unpatched 06/06 cd's but no joy. I'm about to wipe the drives and
    > re-install from scratch again, for about the 4th time in two months.


    It sounds like a hardware problem or unsupported devices.

    Try booting the OpenSolaris LiveCD, it should tell you about your
    hardware and drivers.

  3. Re: Removing a patch

    On Fri, 13 Jun 2008 23:00:11 -0700, Bob Woodward wrote:

    > Can someone tell me how to remove a patch that has caused an Solaris 10 x86
    > system to become unbootable? Actually, I need to back out a handful of
    > patches to get back to a running state. I can get to GRUB which gives me a
    > choice of booting the system or going into failsafe. If I try to boot into
    > the system, I get the copyright lines displayed, a momentary pause then a
    > whole bunch of information is displayed for half a second then the system
    > reboots. I can just make out at the top of the screen something about panic
    > but it's too fast to really see anything.
    > I've tried reinstalling the OS with the upgrade option "back" to the
    > unpatched 06/06 cd's but no joy. I'm about to wipe the drives and
    > re-install from scratch again, for about the 4th time in two months.


    Then you should do that. You seem to have no end of problems so backing
    out from one previous mistake? may leave many others undiscovered so far?
    Its a fairly messed up system that that cannot upgrade itself : <

    I'd start over but set things up for live upgrade this time.
    If you have only 1 larger (> 36 GB drive ) you can still do it.
    With luactivate you always have a way back machine..

    I must admit I do not have live upgrade experience with
    an x86 box but i assume its works like SPARCs.
    The only question I have is can a FeeCee boot from slice 4??

    > I don't suppose there's a log file anywhere that would contain the error
    > messages, either. I'm able to check the /var/adm/messages and
    > /var/log/syslog files but that doesn't look to have anything useful in them.


    You might try a boot -a via grub but being an x86 box Im not sure how
    effective or how useful that would be : <



  4. Re: Removing a patch

    On Sat, 14 Jun 2008 09:03:10 -0700, AGT wrote:

    > The only question I have is can a FeeCee boot from slice 4??


    Yes, how it does that depends on the boot code in sector 1, head 0, cyl 0.

    The typical PeeCee has a microsoft boot loader there which will boot the
    first slice it finds marked active.

    Grub can boot any slice. /boot/grub/menu.lst has to be configured for it.
    On OpenSolaris, menu.lst has moved:

    "For zfs root, menu.lst has moved to /rpool/boot/grub/menu.lst."

    Lilo, the Linux loader can boot any slice, even "extended" slices.


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