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First and foremost, note that I'm a complete noob to Linux, so please bear with my confuzzled rambling.

I've recently installed Ubuntu 12.04 LTS via Wubi (18GB installation on the C: drive) on an AMD 64-bit Windows 7 system, and love it. However, I've just discovered that I'm running out of space on the disc; according to system monitor, I'm using 16.2 / 16.8 GiB on ext3 /dev/loop3 (the Ubuntu installation), while I've got more than 400 GBs left on fuseblk /dev/sda3 (/host/). I'd like to know how to re-mount Wubi from ext3 /dev/loop0 to /dev/sda3 and take advantage of the space there - I'm searching, but I have absolutely no idea how to do so.

Results of df -h:

Filesystem      Size  Used Avail Use% Mounted on

/dev/loop0       17G   17G  551M  97% /
udev            1.8G   12K  1.8G   1% /dev
tmpfs           741M  868K  740M   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            1.9G  332K  1.9G   1% /run/shm
/dev/sda3       582G  166G  417G  29% /host

Results of sudo losetup -a:

/dev/loop0: [0803]:4714 (/host/ubuntu/disks/root.disk)

Help would be appreciated!

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2 Answers 2

You have 17GB available to your Wubi install. This should be enough to use Wubi because you can always store your personal data on the Windows /host. This is recommended anyway because:

  1. It's safer on the /host - not stored in a virtual drive that is a single file (root.disk) that is subject to corruption if Ubuntu freezes and you could lose everything on it.
  2. You have plenty of room on /host
  3. Most of the type of data that takes space e.g. photos, music, video, you'd want available to Windows and it's not easily available if it's stuck on the root.disk (without a tool like ext2read)

The only reason you might need more space is if you're compiling kernels or other software.

You could also consider what your needs are. If you want a robust long term Ubuntu install, Wubi probably isn't it.

Other ways to make space:

  1. Remove all but the last two kernels. You can use this script for that: clean_kernel.sh. Just download it with wget https://raw.github.com/bcbc/utilities/master/clean_kernel.sh and run bash clean_kernel.sh
  2. Clean up unneeded packages: sudo apt-get autoremove && sudo apt-get autoclean
  3. Look for other junk by running the disk usage analyzer (baobab). Go to settings before running and uncheck the /host or it will search the whole Windows partition. Look for large files in /home you can delete or move to host

Of course you can resize the Wubi install, but - as mentioned - a normal dual boot is better for long term.

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IMO if you are wanting to keep Ubuntu you are best off doing a standard installation.

It is possible te resize the wubi disk, but is is a little more time consuming and difficult.

https://wiki.ubuntu.com/WubiGuide#How_do_I_resize_the_virtual_disks.3F

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