Problems with upgrade - lost partition

Peter Boosten peter at
Sat Sep 18 20:58:20 UTC 2010



On 27 aug 2010, at 11:19, Peter Boosten <peter at> wrote:

> Hi,
> I recently updated a machine (running on VMWare) from 7.2 to 8.1.
> This machine has two (virtual) disks. While the upgrade went rather
> smooth ('make buildworld, make buildkernel, make installkernel, reboot
> into single user, mergemaster -p, make installworld, mergemaster,
> reboot), I lost the partition on the second harddrive.
> So after reboot, the machine went directly in single user mode,  
> because
> my /dev/ad1s1a was gone. The only devices in /dev where ad1 (the disk)
> and ad1s1 (the slice).
> Since I had a backup this didn't seem to be such a problem, however
> recreating the slice was.
> The only way I could get rid of that slice was through the gpart  
> utility
> (sysinstall wouldn't help me at all):
> gpart delete ad1s1
> gpart destroy ad1
> After that sysinstall worked again. Is there any way around this (and
> preferably rescue the partition somehow, since I have more machines to
> upgrade, and while backups are there, restoring creates an additional
> delay in the whole process).
> Also, the numbering of the NICs changed from le0 to le1, which isn't
> that a big problem, but rather annoying.
> Thanks in advance.
> Peter
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