| Boot the distribution media for the version you want to
restore. Prior to V4 you had three options; Basic, Advanced
and System Management. Chose system management. This will
provide a root file system that you can use to recreate the
original root and restore your backup. There might be a few
extra steps for mirrored root file systems, so check the
LSM documentation.
V4 also offers a system management option, though I recall
it being a little less obvious.
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| Mic,
I'm not familiar with v4.0, however I ran into your problem before
under 3.2c while doing an upgrade that is why see not 8651, I'm taking
precautions. The install book page f-15 says installupdate needs 24004
blocks on root 198840 on usr and 430 on var for 3.2c.
My guess is that your unable to boot. The upgrade may not have
effected the bootblock or file domain root assuming your using ADVFS
so boot from cdrom. Booting from cdrom I consider equivalent to
standalone VMS mode. Select System Management Option, then type
/sbin/bcheckrc to mount / and /usr /var. Once / is mounted you will be
able to vrestore your backup of /. One gotcha I ran into is the
version of vrestore, If you patched it, the vrestore on the CDROM may
not work on your saveset because the new vdump may not be read with the
old vresore. This is a different problem, however, but
one that drove me nuts.
If your using UFS type mount -u to mount root rw then will have to
mount /usr I believe manually. Type /usr/sbin/fsck to repair file systems.
Hope this Helps,
Jeff
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