how to increase existing partition ?

[Lennart Sorensen]

On Fri, Jan 16, 2004 at 10:22:54PM -0800, James wrote:
> i set up /usr directory too small, now it run out of space. i have spare space  around in the same
> drive. how do i add it to /usr ?
> 
> here is du -h and fdisk -l output:
> 
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/hda7             486M   88M  373M  19% /
> /dev/hda1              23M  2.7M   18M  13% /boot
> /dev/hda2             1.4G  122M  1.2G   9% /home
> none                   30M     0   30M   0% /dev/shm
> /dev/hda10            114M  4.1M  103M   4% /tmp
> /dev/hda6             486M  333M  128M  73% /usr
> /dev/hda3             1.2G   34M  1.0G   3% /usr/local
> /dev/hda9             190M   13M  167M   7% /var
> /dev/hda8             486M  8.1M  453M   2% /var/mail
> 
> 
> Disk /dev/hda: 255 heads, 63 sectors, 788 cylinders
> Units = cylinders of 16065 * 512 bytes
> 
>    Device Boot    Start       End    Blocks   Id  System
> /dev/hda1   *         1         3     24066   83  Linux
> /dev/hda2             4       194   1534207+  83  Linux
> /dev/hda3           195       347   1228972+  83  Linux
> /dev/hda4           348       788   3542332+   5  Extended
> /dev/hda5           348       412    522081   82  Linux swap
> /dev/hda6           413       476    514048+  83  Linux
> /dev/hda7           477       540    514048+  83  Linux
> /dev/hda8           541       604    514048+  83  Linux
> /dev/hda9           605       629    200781   83  Linux
> /dev/hda10          630       644    120456   83  Linux
> 
> 
> i thought of creating a new ext3 filesystem from 655 to 788, and copy all content of /usr  to it.
> then mount the new drive as /usr. 
> 
> is it doable ?  what are other good choices ?

If there is space left on the drive for that, it is probably the
simplest.  That is one insane amount of partitions, most of which are
way smaller that I would ever have considered reasonable.

Having seperate /tmp is sometimes good, seperate /var is good if you
store lots of logs and don't want to getting cut off, /home seperate
makes sense if you have lots of users and are not using quotas, having
/usr seperate from / really doesn't accomplish anything useful, and
seperate /boot makes sense for cases where /boot needs a different
filesystem or your bios is old and crappy.  A database server or
something may make sense to store it's data somewhere seperate too.

I tend to do swap, / and /data and I symlink any large things into
/data.  Keeps life simple and quite reliable.  Using LVM and resizeable
filesystems is another way to deal with it and quite useful to learn.

Lennart Sorensen
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