Ubuntu Server and here is what I have:
When running lsblk I get this
fd0                   2:0    1     4K  0 disk
sda                   8:0    0  1000G  0 disk
├─sda1                8:1    0   487M  0 part /boot
├─sda2                8:2    0     1K  0 part
└─sda5                8:5    0 199.5G  0 part
  ├─mail03--vg-root 252:0    0 126.3G  0 lvm  /
  └─mail03--vg-swap 252:1    0  65.8G  0 lvm  [SWAP]
sdb                   8:16   0   500G  0 disk
sr0                  11:0    1   667M  0 from
When running df -h I get this
Filesystem                   Size  Used Avail Use% Mounted on
udev                         4.4G     0  4.4G   0% /dev
tmpfs                        900M   97M  803M  11% /run
/dev/mapper/mail03--vg-root  125G  114G  4.2G  97% /
tmpfs                        4.4G  4.0K  4.4G   1% /dev/shm
tmpfs                        5.0M   44K  5.0M   1% /run/lock
tmpfs                        4.4G     0  4.4G   0% /sys/fs/cgroup
/dev/sda1                    472M  108M  340M  25% /boot
tmpfs                        900M     0  900M   0% /run/user/1000
sda has 1000G but the partition mounted on / has only 125G
Is it possible to extend the /dev/mapper/mail03--vg-root filesystem ?
If not can you help me please how to mount space from sda ?
I also don't want to lose any data from /dev/mapper/mail03--vg-root
Thanks !
 
    