How to add space to root filesystem dynamically ?

[samjam86]

I am facing space issues on my 10GB Ubuntu root filesystem.

So I decided to create a new filesystem at the end of the harddisk and then add this space to some directory under root filesystem.

The below is the output from "fdisk -l":
sda5 -> Ubuntu root FS
sda9 -> new ext4 FS

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x9f27a03e

Device Boot Start End Blocks Id System
/dev/sda1 * 1 3264 26218048+ 7 HPFS/NTFS
/dev/sda2 3265 38913 286350592+ 5 Extended
/dev/sda5 3265 4569 10482381 83 Linux
/dev/sda6 4570 7180 20970496 7 HPFS/NTFS
/dev/sda7 7181 7429 2000061 82 Linux swap / Solaris
/dev/sda8 7430 37528 241770186 b W95 FAT32
/dev/sda9 37529 38913 11124981 83 Linux


Here, I will definitely need some help on how to mount sda9 on some location inside sda5 such that new software installation files are saved on sda9 in place of sda5.

Help is greatly appreciated.

[oldfred]

Are you sure you even have 10GB? Blocks are 512.

run
sudo parted -l (el not I or 1)

and
sudo df -h

Generally you can houseclean downloaded files and move /home easier.

HouseKeeping:
sudo apt-get update
sudo apt-get upgrade
sudo apt-get autoremove
# removes .deb
sudo apt-get autoclean

I think Autoclean just cleans up files you don't need, while autoremove deletes unneded files..
Autoclean cleans up the downloaded archives (.gz or .tar) files used to install things. Autoremove cleans libraries that are no longer needed.
you can run any "apt-get" command predeccesed by the "-s" (simulate) switch

http://www.psychocats.net/ubuntu/separatehome

[phillw]

Hi,

can you post the output of ..


df -ah | grep dev

Thanks,

Phill.

[samjam86]

Hi Phillw,

Output of

df -h | grep dev

is

/dev/sda5 9.9G 4.4G 5.1G 47% /
udev 1.5G 308K 1.5G 1% /dev
none 0 0 0 - /dev/pts
none 1.5G 648K 1.5G 1% /dev/shm
/dev/sda1 26G 16G 9.3G 64% /media/sda1
/dev/sda6 20G 14G 6.1G 70% /media/sda6
/dev/sda8 231G 76G 155G 33% /media/sda8
/dev/sda9 11G 169M 9.8G 2% /media/sda9

[phillw]

Hi Phillw,

Output of

df -h | grep dev

is

/dev/sda5 9.9G 4.4G 5.1G 47% /
udev 1.5G 308K 1.5G 1% /dev
none 0 0 0 - /dev/pts
none 1.5G 648K 1.5G 1% /dev/shm
/dev/sda1 26G 16G 9.3G 64% /media/sda1
/dev/sda6 20G 14G 6.1G 70% /media/sda6
/dev/sda8 231G 76G 155G 33% /media/sda8
/dev/sda9 11G 169M 9.8G 2% /media/sda9

Your root area is still in good health. 10GB for a purely / is very good :)
You can see from that output, it is still 47% free ... no need to worry.

If you have a seperate /home partition, then 10GB is a really kewl amount to allocate to / (I'm biased, of course, coz that's what I give my LAMP Server - lol)

I've got be honest, I've never seen an allocation table like that !!!

Can you pop on the result of
sudo fdisk -l That is little L, not the number 1

Regards,

Phill.

[samjam86]

Output of

fdisk -l

is

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x9f27a03e

Device Boot Start End Blocks Id System
/dev/sda1 * 1 3264 26218048+ 7 HPFS/NTFS
/dev/sda2 3265 38913 286350592+ 5 Extended
/dev/sda5 3265 4569 10482381 83 Linux
/dev/sda6 4570 7180 20970496 7 HPFS/NTFS
/dev/sda7 7181 7429 2000061 82 Linux swap / Solaris
/dev/sda8 7430 37528 241770186 b W95 FAT32
/dev/sda9 37529 38913 11124981 83 Linux


My issue is that I normally do updates on regular basis and when I was using 9.04, that time within 3 months my root was full to about 80%. This time I am trying to be a bit good with my root / ;).

Please tell me some of the good ways to manage file system. My normal use consists of installations of softwares and games.