On Tue, Oct 16, 2007 at 02:34:39PM +0200, Demeter Tibor wrote: > Dear Listmembers ! > > How can i reduce my LVM logical volume from 1.6 TB to 1.3 TB safely ? I > using ext3 filesystem on this volume and i never should yet this. > I know my friend is the lvreduce, but how can i reduce the ext3 filesystem > without datalossing. You need to first reduce the filesystem size with the command resize2fs. Make sure the filesystem is unmounted (use a rescue cd, if necessary, but be advised that lvm commads be then prefixed with "lvm "), force fsck on it (e2fsck -f device), then run resize2fs new_size_in_fs_blocks. The value of fs_blocks is usually 4096, but depends on the filesystem. You can find the correct value with dumpe2fs device | grep size: ... Block size: 4096 ... Afterwards, do the lvm lvresize device -L $((new_size_in_fs_blocks*4))k -- lfr 0/0
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