Vgextend : "device excluded by a filter"

Tibor BERNARD asked:

So here I am at a new internship and I am asked to extend a volume group, seemed fine :

vgextend [my_group] /dev/sdb

But now I get an error message telling me :

Device /dev/sdb excluded by a filter` 

Could anyone help me figure out what when wrong, or guide me to where the filters are setup.

Thanks,

T

My answer:


Check /etc/lvm/lvm.conf for uncommented filter = and global_filter = lines. One of these will likely contain some filter which matches /dev/sdb. The default configuration specifies no filters, so this will have been modified in your environment by someone else.


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