Hi-
Is it safe to use the zerofree utility on an ext4 partition inside an LVM
with guestfish? I know zerofree works on ext4, but I am unsure about LVM.
The info page uses the syntax "zerofree <device>", so using the info page
example, could I (safely) do something like the following?
$ guestfish
Welcome to guestfish, the libguestfs filesystem interactive shell for
editing virtual machine filesystems.
Type: 'help' for a list of commands
'man' to read the manual
'quit' to quit the shell
><fs> add disk.img
><fs> run
><fs> list-filesystems
/dev/sda1: ext4
/dev/vg_guest/lv_root: ext4
/dev/vg_guest/lv_swap: swap
><fs> zerofree /dev/vg_guest/lv_root
Thanks for any light you can shed on this.
-Ben
