Hi.
I'd like to create a snapshot volume of eg. /dev/sys/Bilder and
call it /dev/sys/Bilder_snap. Bilder_snap should be 25% the size
of Bilder.
How would I do that?
In lvcreate --help, I find:
$ lvm lvcreate --help
[...]
lvcreate -s|--snapshot
[...]
{-l|--extents LogicalExtentsNumber[%{VG|LV|PVS|FREE}] |
-L|--size LogicalVolumeSize[kKmMgGtTpPeE]}
[...]
$ lvm version
WARNING: Running as a non-root user. Functionality may be unavailable.
LVM version: 2.02.36 (2008-04-29)
Library version: 1.02.24 (2007-12-20)
/dev/mapper/control: open failed: Keine Berechtigung
Failure to communicate with kernel device-mapper driver.
Based on the --help output, I tried:
$ sudo lvm lvcreate -s -l 25%LV -n Bilder_snap /dev/sys/Bilder
Please express size as %VG, %PVS, or %FREE.
Did I do something wrong, or is the output "--help"
just wrong?
Thanks a lot,
Michael
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