Making the image file smaller Image is in a dedicated VM format Discarding tends to be the fastest method when a lot of previously used space needs to be zeroed but using zerofree after the discard process can sometimes zero a little bit extra (depending on how discard is implemented on the "disk"). Having the filesystem unmounted will give better results than having it mounted. This method is inefficient, not recommended by Ted Ts'o (author of ext4), may not zero certain things and can slow down future fscks.
0 Comments
Leave a Reply. |