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You already know the stuff in Section 4 ;-) I'm wondering if the Solaris 10 initial boot process is significantly different from Solaris 8/9, where I have most experience.
I've done administration on Solaris 10, but never had to deal with any serious problems...
You can select the device from the Openboot ("OK") prompt If you've restored to the slices on one physical disk, that means the other is untouched for now; edit vfstab to boot from ONE of the disks (Either the one you've "fixed" or the untouched one, to try to get the system up.
what is the exact command to just restore /opt for example, supposing c0t0d0s7 is the partition for /opt It depends how the backup was done.Hopefully whoever set up the mirroring left the original info in vfstab, and just commented out the physical device names, so it's easy to see what the slice/filesystem mapping should be.I assume that the system is still down and you're posting this output from a save somewhere?ufsdump 0cfu /dev/rmt/0n /dev/rdsk/c0t0d0s4 # var ? (I believe it's also possible to specify the filesystem to dump by it's mount point, e.g. s N format ) Then to restore /opt (preferably when booted from CD) mount /dev/dskc0t0d0s7 /opt cd /opt ufsrestore rvfs /dev/rmt/0n 4 # i.e. rm restoresymtable mt -f /dev/rmt/0 rewind You can use the `mt` command to move the tape forward and backward to the desired dump file instead of using the "s" option./opt, and ufsdump translates that into the /dev/rdsk/c? If you're not sure what order the filesystems were dumped in, use the "t" option instead of "r" to look at the contents of each dump file on the tape - just change the 4 to the dumpfile number you want to check See