[linux-lvm] Backup of ROOT Partition.
bryan at kadzban.is-a-geek.net
Wed Jul 16 22:22:48 UTC 2008
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Jean-Philippe Villeneuve wrote:
> I get the folowing error:
> Insufficient free extents (1) in volume group VolGroup00: 19 required
> It works find if I do it with -L20M.
You need to either grow the physical volume if possible, add extra
physical volumes to the volume group (and therefore grow the volume
group), or shrink the existing logical volume.
> according to 'df' I have plenty of space for data.
Yeah, but that's not the space that logical volumes use.
LVs are allocated from inside the group-of-physical-volumes in a VG.
Think of LVs like partitions: if you have tons of space available on the
FS that's inside a partition, that doesn't necessarily mean you can add
a new partition to the disk. You'll have to either shrink the existing
LV, or add more physical volumes to the group.
I believe either can be done while the FS is mounted.
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