resize / ?

ats2 · Apprentice Joined: 22 Apr 2005 Posts: 295

Hi,
I need to resize /. It was 3068MB, but only 7% are left after a mere gentoo install, without any window manager (I won't install any btw, it's for a server)
So I thought I could try parted but I'm not sure of what to do. Here's my partition scheme
/dev/sda12048MB swap
/dev/sda2 510MB /boot
/devsda3 3068MB /
/dev/mapper/volume 13GB (LVM)

I have 4 GB of free space

So, what's the idea ? Just resize / with a new END value, or delete LVM, then resize / then recreate LVM ?

BTW, I made a parted boot floppy, but it asks for a second disk whan booting... Where's that one ?

Thx for your help ?

ecosta · Guru Joined: 09 May 2003 Posts: 477 Location: Brussels,BE

Why have LVM and not use it?

Just create an logical volume of say 5 GB and copy all of usr onto it (keep permissions!). Then change fstab and reboot. If it works, you can boot in single user and delete the "/usr" which is still on the root and taking your valuable space.

In short

0) BACKUP your data!

1) lvcreate
2) edit fstab
3) reboot
if boot ok and /usr mounted
4) boot single user or LiveCD
a) unmount /usr
b) rm -rf /usr (root version)
5) reboot

Hope this helps.
I'd read about LVM for the next install.
Ed.
_________________
Linux user #201331
A8N-SLI Delux / AMD64 X2 3800+ / 1024 MB RAM / 5 x 250 GB SATA RAID 1/5 / ATI Radeon X700 256MB.

ats2 · Apprentice Joined: 22 Apr 2005 Posts: 295

Hum,
thanks for the idea, but I created that LVM for another purpose, and I'd prefer not have my /usr in this partition.
So, my question is still : what's the correct way of resizing /, without loosing data as much as possible ?

gimpel · Posted: Sat Jan 28, 2006 1:09 am Post subject:

take a look at /usr/portage/distfiles and /var/tmp/portage. If you have enough bandwith to go in case you want to re-emerge stuff, delete its content

resizing is evil.
_________________
http://proaudio.tuxfamily.org/wiki - pro-audio software overlay

ats2 · Apprentice Joined: 22 Apr 2005 Posts: 295

Thanks for the answer, too.
That's an idea. Sounds good, but what will be going on next time I run 'emerge -uDv system'. Will it be Okay or the will the system re-emerge the portage tree ?

Pse · Posted: Sat Jan 28, 2006 6:44 am Post subject:

It'll just download the needed packages again. Distfiles is the location where portage stores its "cache" of downloaded packages, the tree is located somewhere else (/usr/portage)...

AllenJB · Posted: Sat Jan 28, 2006 8:22 am Post subject:

I don't know much about resizing / - the only thing I know is that you can't do it while / is mounted (I have a funny feeling this may actually be from experiance when I may have tried to resize / ages ago - fortunately IIRC I had been a good boy and backed up everything important first) - you'll need to boot from a livecd or similar. The other thing you might consider if you have the disk space is moving /home to a seperate partition.

Allen
_________________
http://gentoo-wiki.com :: http://lug.org.uk :: http://www.linux.org/groups/ :: User Blogs