View Full Version : [ubuntu] Extend ext4 system partition after installation?

October 28th, 2013, 03:07 AM
Hi there!
I installed Ubuntu 13.10 not to long ago just to try it out. I also have Windows 8.1 and I'm dual booting. I thought i wouldn't use Ubuntu so much, but i really like it and it ended up being my main OS. The problem is, when I well installed it, i only gave it 15 GB of my hard drive. Soon after those gigabytes ran out, causing serious graphical glitches. I cleaned some files and now everything works perfect again, but I can't extend the ext4 partition when I boot Ubuntu 13.10 from a USB-Stick. When I resizes my main partition on my hard drive it becomes unallocated, but I can't move the space on my Ubuntu ext4 partition. Can someone please help me? :(

Regards Emil a.k.a. KraXarN

October 28th, 2013, 02:48 PM
Welcome to the Ubuntu Forums :-)

We need to see you partition table in order to give relevant advice, so please post the output of the following commands, when booted from the Ubuntu install USB drive

sudo fdisk -lu

sudo parted -l

It will be easier to read if you 'go advanced', mark the output lines, and click on the # icon at the top of the editing window to put the text within code tags.

October 29th, 2013, 12:43 AM
Thank you!
When i type sudo fdisk -lu, it says:

Disk /dev/sdd: 180.0 GB, 180045766656 bytes
255 heads, 63 sectors/track, 21889 cylinders, total 351651888 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x69f7f859

Device Boot Start End Blocks Id System
/dev/sdd1 2048 299956223 149977088 f W95 Ext'd (LBA)
/dev/sdd2 * 299956224 320927743 10485760 83 Linux
/dev/sdd3 320929792 324927487 1998848 82 Linux swap / Solaris
/dev/sdd4 324927488 351651839 13362176 83 Linux
/dev/sdd5 4096 299956223 149976064 7 HPFS/NTFS/exFAT

And when I type sudo parted -l, it says:

Model: ATA INTEL SSDSC2CT18 (scsi)
Disk /dev/sdd: 180GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
1 1049kB 154GB 154GB extended lba
5 2097kB 154GB 154GB logical ntfs
2 154GB 164GB 10.7GB primary boot
3 164GB 166GB 2047MB primary linux-swap(v1)
4 166GB 180GB 13.7GB primary ext4

Hope that helped a bit :)

October 29th, 2013, 12:22 PM
Windows is in a logical partition (number 5) filling the extended partition (number 1) at the start of the drive.

There is a primary partition (number 2) with 10.7 GB directly after the extended partition. fdisk says it is a linux partition but parted does not see any file system in it.

Then comes the swap partition (number 3) and an ext4 partition (number 4). I guess you have installed Ubuntu into partition number 4.

The partition table is complicated, and it makes it difficult to increase the size of the Ubuntu partition. If you want to add disk space to a partition, it must be adjacent. And the swap area is sitting adjacent to the Ubuntu partition and blocking such actions.


There are several solutions. In any case, they are risky, and you need to backup the whole drive (make a clone or an image of it) or at least backup all your personal files.

One alternative is to make a complete backup copy of your Ubuntu system (with rsync or tar) and wipe the partitions 2, 3 and 4. And create a new root partition for Ubuntu leaving some space at the very end of the drive for the swap partition. That way you can get around 24 GB for Ubuntu, which might be enough.

And after that you can copy back Ubuntu from the backup fix the UUIDs of the partitions or the references in /etc/fstab ..., and re-install the bootloader.

Another similar alternative is to shrink the logical partition with Windows, and then shrink the extended partition, to create more drive space that can be used for Ubuntu (to be merged with the space from partitions 2, 3 and 4).

Edit: Boot from the Ubuntu install CD/DVD/USB drive and use gparted to edit the partitions.


If you feel it is OK to re-install Ubuntu after releasing drive space, that would be the most straight-forward way to make a good system.

November 1st, 2013, 03:02 AM
Thanks for the help. I tried doing some of those, but I just ended up reinstalling Ubuntu. Thanks anyway :)