On Fri, Jan 21, 2011 at 10:20:34AM -0700, Rodney Beede wrote: > Any tools to go about zeroing about the free space on a btrfs file > system so I can shrink the VMware vmdk virtual disk? > > I ran the VMware command, but the dynamic disk is still really big. I > presume it is due to free space that isn't zeroed out. One solution I've used before is to write a single very large file full of zeroes, filling the filesystem, then delete it. $ dd if=/dev/zero of=/mountpoint/foo.dat && rm /mountpoint/foo.dat Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- ... one ping(1) to rule them all, and in the --- darkness bind(2) them.
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