ProxmoxVE 2.0: Shrinking the data volume

After installing ProxmoxVE 2.0rc1, a data volume was created which makes use of most of the space on the drive.

I wanted to carve out a separate volume for some other use so I needed to shrink this data volume:

First, I unmounted the logical volume with:

umount /var/lib/vz

Then I proceeded to shrink the file system to the minimum size possible with:

resize2fs -Mf /dev/pve/data

Then I proceeded to reduce the size of the logical volume with:

lvreduce --verbose --extents -100000 /dev/pve/data

Then I proceeded to grow the file system back to occupy the now reduced volume with:

resize2fs -f /dev/pve/data

Lastly, I remounted the file system with:

mount /dev/pve/data /var/lib/vz

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