recovery after power outage

Bill Moran wmoran at
Tue Feb 6 17:28:23 UTC 2007

In response to "Marty Landman" <martster at>:

> My fbsd 6.0 box is having filesystem problems on boot since a blackout
> yesterday. Here's a synopsis:
> /dev/ad0s1a: clean
> ...repeats for ad0s1f & e
> then reports error=40<UNCORRECTABLE> for ad1 (twice) and reports an
> unexpected inconsistency for my ad1s1c device which is the primary slave hd.
> Tells me to run fsck manually and asks which shell I want. Maybe this is my
> fault for not partitioning appropriately, can't get to many commands
> including fsck guess it's because of the fs problems.
> How can I try and recover from this?

If you can't mount the filesystem that has fsck on it, you're going to
have to boot off a CD (FreeSBIE or the FreeBSD fixit cd) and run fsck
from there.

Bill Moran
Collaborative Fusion Inc.

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