After you have extended the logical volume it is necessary to increase the file system size to match. how you do this depends on the file system you are using.
By default, most file system resizing tools will increase the size of the file system to be the size of the underlying logical volume so you don’t need to worry about specifying the same size for each of the two commands.
ext2/ext3
Unless you have patched your kernel with the ext2online patch it is necessary to unmount the file system before resizing it. (It seems that the online resizing patch is rather dangerous, so use at your own risk)
# umount /dev/myvg/homevol/dev/myvg/homevol # resize2fs /dev/myvg/homevol # mount /dev/myvg/homevol /home |
If you don’t have e2fsprogs 1.19 or later, you can download the ext2resize command from ext2resize.sourceforge.net and use that:
# umount /dev/myvg/homevol/dev/myvg/homevol # ext2resize /dev/myvg/homevol # mount /dev/myvg/homevol /home |
For ext2 there is an easier way. LVM 1 ships with a utility called e2fsadm which does the lvextend and resize2fs for you