consistent file system inconsistencies (tried replacing drive)

[Scott Charron]

Hello,

I posted this on the USB mailing list but perhaps it is better in the
filesystem section.

Details are below.

Basically I'm noticing that _every_ time my PC loses power (IE from a power
loss) my filesystem becomes corrupt and I see this:

Unexpected inconsistency; Run fsck manually
Automatic file system check failed; help!
ERROR ABORTING BOOT (sending SIGTERM to parent)!
init: /bin/sh on /etc/rc terminated abnormally, going to single user mode

I understand that there could be some problems with a power loss, but I am
surprised that this drastic measure of going into single user mode must be
taken.   I have another FreeBSD server that experiences the same power
outages and it has _never_ ever gone into single user mode because of it.


My server that experiences the problem is running off a USB stick (a fast
one)
My server that does not experience the problem is running off a CF card
(relatively fast)

This is why I initially thought it might be a USB related issue.

...I'm willing to try anything and post more details... please help!

Acer H340
FreeBSD 8.1 release (minimum install) on a 4GB usb memory stick.
/: 512MB
/var: 512MB
/usr: ~3GB
ZFS enabled, but only for the 4 sata drives that do NOT house the OS at all

Thank you,


Details below:

>
> > Hi,
> >
> > I don't know if this is a USB problem or not - but I figured I'd start
> here.
> >
> > I have a Acer H340. I installed a barebones install of FreeBSD8.1
> > (release). I previously had FreeBSD8.0 release and was experiencing th=
e
> > same problem.
> >
> > I have a 4GB USB memory stick that I installed FreeBSD onto (512M /, 51=
2M
> > /var, remaining /usr).
> >
> > Everything works great, but if if the PC receives a power loss I get fi=
le
> > system corruption problems:
> >
> > Something like:
> >
> > * /dev/ad0s1a: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.*
> >...