Am 08.09.2012 20:20, schrieb walt: > I've never expanded an lvm partition before, and I think I did it the > long way around just now: > > I divided my 1TB disk into 10 equal pv's when I bought it, and then > added four of those to a new vg (named wd0), leaving the other six > for future use. > > After a few months of filling up that partition I needed more room, > of course, so I used vgextend to add a fifth pv to the existing vg. > That worked fine, but now I had to extend the ext4 fs to fill all of > the added new space. > > While googling I saw some advice to use resize2fs for that, but > resize2fs said there is nothing to do on that fs and quit without > doing anything. > > After some fumbling around I used lvextend -r -L nnnnn /dev/wd0/wd0, > where nnnnn is the number of unused extents listed by pvdisplay. > > That (eventually) worked but each time I ran that command, only > roughly half of the empty extents were added instead of the whole > nnnnn of them. Took me about 10 iterations before all of the > extents were finally added to the filesystem :-/ > > So, did I use the wrong tools or in the wrong order, or what? > It should have been easier than that, I think. >
Did you multiply the number of extents reported by pvdisplay with the extent size? lvextend's -L uses megabytes, if no unit is given. To specify extents, you should use "-l". You should also prefix the number with a "+" so that the number is relative to the current size, not the absolute size of the logical volume. Regards, Florian Philipp
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