[linux-lvm] device filter in lvm.conf
Bryn M. Reeves
bmr at redhat.com
Wed Nov 12 19:06:54 UTC 2008
Tuncel.Mutlu at akbank.com wrote:
> Thanks a lot,
Great! Glad it's working for you now.
> PS: By the way are you sure about sddlm* been the "sddl + 0 or more m". The
> LVM has been accepting my filter now.
Sorry, that was my mistake - this is true for regexes, but since LVM2
filter regexes have an implicit ".*" at beginning/end (unless you use
anchors - see the comments in the default lvm.conf) and the '*' will
match 0 or more occurrences of the preceding character, it actually
behaves as though there is no '*' there at all.
E.g. "/sdlm*/" would match sdl$ANYTHING, since "m*" is matched by zero
occurrences of 'm' and the remaining string is consumed by the implicit
".*" at the end.
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