sanity check, resizing root

[jserink]

Hi All:

Here is my df output:
jerinkturion jserink # df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda8 3911620 411148 3500472 11% /
udev 10240 220 10020 3% /dev
/dev/sda5 46633 13312 30913 31% /boot
/dev/mapper/vg-usr 5779272 4717612 1061660 82% /usr
/dev/mapper/vg-home 10510008 9870140 639868 94% /home
/dev/mapper/vg-opt 1482700 664472 818228 45% /opt
/dev/mapper/vg-var 5783368 195080 5588288 4% /var
/dev/mapper/vg-tmp 536552 33940 502612 7% /tmp
/dev/sda1 8193116 7713140 479976 95% /mnt/WindowsC
/dev/sda6 30701232 29958624 742608 98% /mnt/WindowsD
/dev/sda6 30701232 29958624 742608 98% /home/jserink/mnt/D
/dev/sda7 30701232 17921360 12779872 59% /mnt/WindowsE
/dev/sda13 15351128 9150888 6200240 60% /mnt/WindowsF
/dev/sda13 15351128 9150888 6200240 60% /home/jserink/mnt/F
tmpfs 2030544 0 2030544 0% /dev/shm

As you can see, I'm wasting about 2G of space on my / partition sow I was wondering it its possible to shrink it on the fly without having to run from a bootable CD. its reiserfs but I'm pretty sure reiser has to be unmounted before it can be resized. is it possible to unmount root....course I can't as then I could never mount again as mount is in /bin....

Ok, how can I do this without damaging /?


Cheers,
John

[aceFruchtsaft]

Actually, I'd say it's not worth it. You have a 150 GiB harddrive, so if you get an extra 2 GiB off / you'll have gained about 1.3% more space and risk trashing your root partition in the process.
Just get another harddrive, even decent ones cost hardly nothing nowadays (assuming that this is a desktop PC).

If you really want to go ahead, definitely use a livecd (I recommend RIP Linux) so you can at least run fsck after resizing.