On 11/2/06, Eric Schuele <[EMAIL PROTECTED]> wrote:
On 11/01/2006 11:05, Karol Kwiatkowski wrote:
> On 01/11/2006 17:40, Eric Schuele wrote:
>> Hello,
>>
>> [Running 6.2-PRERELEASE as of Oct 30th]
>>
>> My /var filesystem on my laptop died this morning.
. . .
>> 2) If I have destroyed it what can I do at this point?  I have no full
>> backup of /var.  I had nothing of any real importance on there.  Some
>> MySQL data... but I've got that.  My package database comes to mind.
>> but nothing of any personal value... just stuff to keep the OS on its
>> feet.  So... if its gone... is there anyway to create a functional /var
>> filesystem that will allow me to "get back to work as usual"?  Or is my
>> only option a complete reinstall of everything?
. . .
> The downside of this (option 2) is you'll loose some important
> information about your system, /var/db/pkg comes first to my mind.

With respect to the package database...
I've seen plenty of threads from folks having lost theirs in some form
or fashion, and the solution always seems to be "reinstall everything".
  Well, ok... sounds like a PITA, but how hard can it really be.  I only
had 30-40 "apps" installed anyway.  With their deps it weighs in around
350 ports total.  So I started to do just that.  Figured I'd reinstall
in the order I originally installed in the first place.  Starting with
Xorg.  I go to the port dir and `make install`, thinking it would
reinstall it and all its deps.  No go.  It does in fact reinstall Xorg,
but none of its deps because it finds them present.  Reinstalling 30-40
apps is one things, having to manually go in and do 350... now thats a PITA!

You might be able to force mount the dirty filesystem via
mount -f
You can also try
dd if=/dev/ad0s1d of=some_dang_file_name*
And then using mdconfig to play with the resulting file.
mdconfig -t vnode -f some_dang_file_name -u 0 && \
mount -f /dev/md0c /mnt (maybe?)
If you can get the /var/db/pkg dir off nicely, good luck.

*(Note that this could take a long time on a 1 or 2G /var
as it reads all of the empty blocks as well, you might want
to hand it a bs= and a count= if you know about how much
of /var was full at the time, man dd for more details. Also
note that I have had faster results using sdd from ports)

I had a similar problem a while back and both methods
were able to read some of the data from the former /var,
however the /var/db/pkg directory was trashed and I ended
up having to fall back on the "reinstall everything" method.
My method ended up consisting of:
1) reinstalling portupgrade
2) reinstalling several high level programs (opera, mplayer,
gnumeric, any window managers, & so on)
3) pkgdb -F which one at a time reinstalls everything depended
on.  Make sure you have backups of any important files in
/usr/local/etc as they may get overwritten.

--
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