Oops..partitioning error

Oliver Fromme check+jbajbq00rsx62135 at fromme.com
Wed Jan 3 04:10:42 PST 2007

Huub <"v.niekerk at hccnet.nl"> wrote:
 > Jeremy C. Reed wrote:
 > > On Wed, 3 Jan 2007, Huub wrote:
 > > > I was wondering why I got "disk full" without having many apps 
 > > > installed. Now "df -k" tells me /usr is very small and /home is very 
 > > > large. Is there any smart way I can change this without having to 
 > > > reinstall DFBSD?
 > > 
 > > Move your /usr to /home/usr.
 > > 
 > > Remove any /usr from /etc/fstab. (If in there use that space for something 
 > > else.)
 > > 
 > > And create symlink for /usr to /home/usr
 > Ok. So there's not some way like partition-magic to reallocate diskspace
 > from /home to /usr?

No, there is no way to shrink an an existing UFS file
system.  In fact, it _is_ possible to change partition
sizes, but that will invalidate the previous contents,
i.e. you would have to create new file systems.

So you have two options:  Backup + re-install + restore,
or do it the way jeremy explained:  Duplicate the
contents of /usr to /usr/home, then unmount /usr and
create a symlink /usr /home/usr (that have to be done
in single user mode).  You can use the partition formerly
used for /usr for other purposes if you like.

Alternatively, you can also move (and symlink) /usr/local
to /home/local or similar.  I guess that /usr/local is the
biggest subdir in your /usr file system, so moving only
that one will help.  That approach has the advantage that
you probably don't need to enter single user mode.

 > su-3.2# df -k
 > Filesystem      1K-blocks    Used    Avail Capacity  Mounted on
 > /dev/ad3s1a        254063   82828   150910    35%    /
 > /dev/ad3s1d        254063   29144   204594    12%    /var
 > /dev/ad3s1e        254063      24   233714     0%    /tmp
 > /dev/ad3s1f       8257742 8257726  -660602   109%    /usr
 > /dev/ad3s1g      65839984   13189 60559597     0%    /home

You said you don't have many apps installed.  But 8 GB
is pretty much, I think.  Maybe you should check what is
installed and clean up a bit.

Best regards

Oliver Fromme,  secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd

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