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I've been trying to follow a myriad of directions all to no avail.

I have a 49.4gb drive that is only using 12.1gb of space. I would like to reduce this drive to 20gb in order for it to be used on a more economical VPS hosting solution (rates vary based on HD space and RAM needed)

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Here is one set of instructions I followed that did not work.

However the output seemed to work

c:\Program Files\Oracle\VirtualBox>VBoxManage modifyhd "D:\VMBox\EveServers.info
Alpha Live v.3\EveServers.info Alpha Live v.1-disk1.vdi" -compact
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

Any advice would be appreciated!

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2 Answers 2

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Are you trying to shrink the / logical volume or the block device (virtual disk) that EVEServer PV is based on?

If it is a dynamically allocated virtual disk, you don't need to worry about the physical size of the VDI too much.

VBoxManage modifyhd --compact is used to shrink the VDI image - which removes blocks that only contains zeros (zero out virtual HDD required beforehand). It will shrink a dynamically allocated image, reduce the physical size of the VDI.

You need to use the --resize option to change the capacity of an existing VDI image. However, this works with dynamically allocated disk ONLY, and it is capable to expand ONLY, not shrink.

See => VBoxManage modifyhd

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  • Well i ran VBoxManage modifyhd --compact but it didnt seem to effect the displayed size of the disk inside Ubuntu. My concern is when I try to upload this image to a VPS host, that they will see the disk as being 50 gigs instead of what I would want, 20gb, and charge me for the larger unneeded space....
    – Guardian
    Aug 8, 2013 at 15:39
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If you want to change the displayed size inside Ubuntu, you have no option except copying the partition to a smaller virtual disk. Ubuntu will always display the virtual size of the disk - in your case, it's >= 49.4 GB - and it can not know that it occupies less space on the host operating system.

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