How to enlarge Qemu linux lvm vps

[yena]

Hello,
i have a Qemu VPS Cloudlinux 7 (centos 7) with LVM.

I'm tryng to enlarge the root partition using Gparted Live CD but i have this error when i try to enlarge SDA2:
"partition length of 4401920000 sectors exceeds the msdos-partition-table-imposed ..."

My Volumes details:

vgdisplay
--- Volume group ---
VG Name cloudlinux
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 1
Act PV 1
VG Size 1,95 TiB
PE Size 4,00 MiB
Total PE 511743
Alloc PE / Size 511743 / 1,95 TiB
Free PE / Size 0 / 0
VG UUID cS3axr-te0n-NtTD-PHql-RHnb-qdFP-L4JqTw

[root@node4-001 ~]# lvdisplay
--- Logical volume ---
LV Path /dev/cloudlinux/root
LV Name root
VG Name cloudlinux
LV UUID z4WPoP-Yqls-dqWc-ep8P-DKw6-xnRi-2W3fF4
LV Write Access read/write
LV Creation host, time nodo4-001.server365.it, 2017-06-30 16:59:46 +0200
LV Status available
# open 1
LV Size 50,00 GiB
Current LE 12800
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0

--- Logical volume ---
LV Path /dev/cloudlinux/home
LV Name home
VG Name cloudlinux
LV UUID bHDguY-NTi3-2her-MOoc-07Ne-20Yt-kQw5nY
LV Write Access read/write
LV Creation host, time nodo4-001.server365.it, 2017-06-30 16:59:47 +0200
LV Status available
# open 1
LV Size 1,90 TiB
Current LE 497919
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2

--- Logical volume ---
LV Path /dev/cloudlinux/swap
LV Name swap
VG Name cloudlinux
LV UUID vZ16Rx-CXxe-r0g5-6Ps7-h77T-eSBa-IzKJZb
LV Write Access read/write
LV Creation host, time nodo4-001.server365.it, 2017-06-30 16:59:51 +0200
LV Status available
# open 2
LV Size 4,00 GiB
Current LE 1024
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1

[root@node4-001 ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name cloudlinux
PV Size 1,95 TiB / not usable 3,00 MiB
Allocatable yes (but full)
PE Size 4,00 MiB
Total PE 511743
Free PE 0
Allocated PE 511743
PV UUID ZeWf35-fyUZ-WyOA-6gif-J5JR-X5eM-J9hGyR
--------------------------------------------------------------------------------------------------
df -h
File system Dim. Usati Dispon. Uso% Montato su
/dev/mapper/cloudlinux-root 50G 41G 6,6G 86% /
devtmpfs 37G 0 37G 0% /dev
tmpfs 37G 4,0K 37G 1% /dev/shm
tmpfs 37G 321M 37G 1% /run
tmpfs 37G 0 37G 0% /sys/fs/cgroup
/dev/sda1 976M 182M 727M 20% /boot
/dev/mapper/cloudlinux-home 1,9T 282G 1,6T 16% /home
tmpfs 7,3G 0 7,3G 0% /run/user/0
---------------------------------------------------------------------------

Please How can i enlarge it ?

Thanks!

 

[Phinitris]

Hello,
msdos partition tables only support a max disk size of 2 TB. If you have a larger disk you need to convert your partition table to gpt. However I recommend doing a backup/snapshot before that as changing the partition table could break your filesystem if done wrong.

 

[yena]

Hello,
msdos partition tables only support a max disk size of 2 TB. If you have a larger disk you need to convert your partition table to gpt. However I recommend doing a backup/snapshot before that as changing the partition table could break your filesystem if done wrong.

Please, can i convert partition with Gparted ? or what is the best procedure ?
If i take a snapshot of the VPS, and something go wrong.. can i revert ?
Thanks!