- To grow the existing /dev/mapper/cl-root on XFS, log in to the FortiSIEM CLI and run the 'lsblk' command
For example:
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 8:0 0 100G 0 disk
├─vda1 8:1 0 1G 0 part /boot
└─vda2 8:2 0 24G 0 part
├─cl-swap 253:0 0 2.5G 0 lvm [SWAP]
└─cl-root 253:1 0 21.5G 0 lvm /
vdb 8:16 0 100G 0 disk
├─sdb1 8:17 0 22.4G 0 part [SWAP]
└─sdb2 8:18 0 68.9G 0 part /opt
vdc 8:32 0 60G 0 disk
└─sdc1 8:33 0 60G 0 part /cmdb
vdd 8:48 0 60G 0 disk
└─sdd1 8:49 0 60G 0 part /svn
vde 8:64 0 61G 0 disk /data
Confirmed that /dev/vda is 100 G while /dev/vda2 remains at 24 G.
- Extend the partition (/dev/vda2) to fill the disk:
Parted /dev/vda
(parted) unit GiB
(parted) unit GiB <----- Note the 'Start' of partition 2.
(parted) resizepart 2 100% <----- Extend to end of disk.
(parted) quit
partprobe /dev/vda <----- Re‑read partition table.
lsblk <----- Verify vda2 ≃100G.
- Resize the physical volume to consume new space
pvresize /dev/vda2
vgdisplay cl <----- Look for 'Free PE / Size' > 0
vgdisplay
This grows the LVM PV on /dev/vda2 to ≃ 100 GiB
- Extend the logical volume:
lvextend -l +100%FREE /dev/cl/root
lvdisplay /dev/cl/root <----- Verify LV size ≃ new VG size.
- Grow the XFS Filesystem:
xfs_growfs / <----- Sr xfs_growfs /dev/mapper/cl-root.
df -h <----- Should now show ≃100 G on '/'.
- Verify the size of / partition:
lsblk
df -h
vgdisplay cl
lvdisplay /dev/cl/root
All should now reflect the expanded size.
Related articles:
Technical Tip: Extend the /opt partition
Technical Tip: How to expand local disk for eventdb mounted on /data
Technical Tip: How to extend disk in LVM partition
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