To Recover from a System Crash

1. Boot the system from another disk, CD, DVD, or over the network.
2. Run the fsck your-root-device command where your-root-device is your original root device.

   # fsck your-root-device

3. Mount your original root device.

   # mount your-root-device /mnt

4. Restore your original fp.conf file (for FC multipathing) or mpt.conf (for SAS multipathing) as follows.
   • If you ran the stmsboot -e command or stmsboot -d command:

     • For SAS multipathing, type the command cp /mnt/etc/mpxio/mpt.conf /mnt/kernel/drv/mpt.conf

     • For FC multipathing, type the command cp /mnt/etc/mpxio/fp.conf /mnt/kernel/drv/fp.conf

   • If you ran the stmsboot -u command, and you modified either the fp.conf file or the mpt.conf undo the changes you made to this file by editing either the /mnt/kernel/drv/fp.conf or the /mnt/kernel/drv/mpt.conf files.
5. Undo any other changes you made to the multipathing configuration prior to running the stmsboot command.

   For example, if you modified the scsi_vhci.conf file, undo the changes you made to this file by editing the /mnt/kernel/drv/scsi_vhci.conf file.

   If you modified the device settings of your storage arrays, restore their original settings.

6. Restore your original /etc/vfstab file:

   # cp /mnt/etc/mpxio/vfstab /mnt/etc/vfstab

   The /mnt/etc/mpxio/vfstab file is a copy your original /etc/vfstab file that the stmsboot command saved prior to updating your vfstab file. A /mnt/etc/mpxio/vfstab file will not exist if the stmsboot command has not modified your vfstab file.

7. If the system is running on a Solaris 10 Update 4 OS (or later) x86 based system, perform the following steps:
   1. Restore your original /boot/solaris/bootenv.rc file.

      # cp /mnt/etc/mpxio/bootenv.rc /mnt/boot/solaris/bootenv.rc

      The /mnt/etc/mpxio/bootenv.rc file is a copy your original /boot/solaris/bootenv.rc file that the stmsboot command saved prior to updating your bootenv.rc file. A /mnt/etc/mpxio/bootenv.rc file will not exist if the stmsboot command has not modified your bootenv.rc file.

   2. Update the boot archive.

      # bootadm update-archive -R /mnt

8. Disable the mpxio-upgrade service:

   # /usr/sbin/svccfg -f /mnt/etc/mpxio/svccfg_recover

9. Type sync to synchronize the file systems.
10. Unmount the device.

    # umount /mnt

11. Reboot the system.