SUMMARY: root disk partition table being changed

From: Tze Wong (
Date: Mon Mar 30 1998 - 22:40:05 CST

Thanks for all who respond, which most of them said
1)The disk partition table is not likely to be changed by "boot net
-s" but due to human errors ( wrong tar command ).
2)Tar cannot backup filesystem, ufsdump/dump should be used.
thanks to,
Mike Salehi, Janet Hoo,Ronald Loftin,Brion Leary,robin.landis, David
Thorburn-Gundlach,Brent Parish, Eugene Kramer

original post:

I have a problem here where the root disk partition table is being
> changed, and end up reinstall Solaris.
> It all started when another system administrator tried to "boot net
> -s" to single user mode, and TAR up the /dev/dsk/c0t0d0s0 ( mounted to
> / ). He failed to tar up the disk, and ends up the server cannot be
> booted up again.
> When I did a format and see the partition table for the root disk, ( I
> was still in the single user mode from boot net -s), it showed the
> partition table is totally changed, and our decision is re-install>
> My question is,
> 1) will boot net -s changed your root disk partiotion table? or i
> suspect it is changed due to incorrect procedure/command ? how many
> ways can change a disk partition table?
> 2) can tar backup /dev/dsk/c0t0d0s0? ufsdump can do it right?
> thanks for helping.

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