Hello, Is it safe to extend a mounted partition ? For example, lvextend --size +9G --resizefs /dev/mapper/vg_paeiserver5-lv_my_partition when /dev/mapper/vg_paeiserver5-lv_my_partition is mounted ? I cannot simply unmount that partition as it is the root filesystem "/" is hosted on it. I can reboot to a second partition as this is a dual boot machine, and from there run that lvextend, as /dev/mapper/vg_paeiserver5-lv_my_partition is not mounted there. But I prefer doing it without boot if it is considered safe to perform this on a booted partition. If I try it I get: "on-line resizing required" message, which I am not sure what it means. and "df -h" show that the partition was indeed increased by 20GB. lvextend --size +20G --resizefs /dev/mapper/vg_paeiserver5-lv_my_partition Extending logical volume lv_ubuntu to 34.00 GiB Logical volume lv_ubuntu successfully resized resize2fs 1.42.9 (4-Feb-2014) Filesystem at /dev/mapper/vg_paeiserver5-lv_my_partition is mounted on /; on-line resizing required old_desc_blocks = 1, new_desc_blocks = 3 The filesystem on /dev/mapper/vg_paeiserver5-lv_my_partition is now 8912896 blocks long. Regards, Kevin _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
