Assistance with expanding local & local-lvm after migrating PVE from 256gb drive to 2TB drive

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Solrac91

New Member
Jun 6, 2024
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PVE version 8.3.5

tl;dr - I migrated my base PVE install media from a 256gb nvme onto a 2tb nvme and I need assistance with expanding local & local-lvm

I have migrated my PVE disk (via clonezilla) from a 256gb nvme onto a larger 2tb nvme. I have found several forum posts regarding how to expand the local & local-lvm, but have received various errors regarding "extents needed"
Insufficient free space: 51200 extents needed, but only 0 available

According to lsblk, the relevant partition (nvme0n1p3) does have 1.8tb allocated, but I'm having trouble expanding the relevant pools. I am currently stuck on how to extend the relevant local & local-lvm pools. I think I would like to extend local to a total of 500gb (to hold backups and such) and local-lvm I would like to use up the rest of the space, which should be about 1.3tb.

Ideally I would like to do this without wiping local-lvm and re-creating, as this is where I currently have running VM's.

Error example:
root@proxmox:~# lvextend -L +200G /dev/mapper/pve-root
Insufficient free space: 51200 extents needed, but only 0 available

Relevant data:
root@proxmox:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 5.5T 0 disk
├─sda1 8:1 0 2G 0 part
└─sda2 8:2 0 5.5T 0 part
sdb 8:16 0 5.5T 0 disk
├─sdb1 8:17 0 2G 0 part
└─sdb2 8:18 0 5.5T 0 part
sdc 8:32 0 18.2T 0 disk
├─sdc1 8:33 0 2G 0 part
└─sdc2 8:34 0 18.2T 0 part
sdd 8:48 0 18.2T 0 disk
├─sdd1 8:49 0 2G 0 part
└─sdd2 8:50 0 18.2T 0 part
nvme0n1 259:0 0 1.8T 0 disk
├─nvme0n1p1 259:1 0 7.9M 0 part
├─nvme0n1p2 259:2 0 1G 0 part
└─nvme0n1p3 259:3 0 1.8T 0 part
├─pve-swap 252:0 0 8G 0 lvm [SWAP]
├─pve-root 252:1 0 68G 0 lvm /
├─pve-data_tmeta 252:2 0 2.4G 0 lvm
│ └─pve-data-tpool 252:4 0 151.1G 0 lvm
│ ├─pve-data 252:5 0 151.1G 1 lvm
│ ├─pve-vm--100--disk--0 252:6 0 32G 0 lvm
│ ├─pve-vm--100--disk--1 252:7 0 4M 0 lvm
│ ├─pve-vm--101--disk--0 252:8 0 32G 0 lvm
│ ├─pve-vm--102--disk--0 252:9 0 32G 0 lvm
│ ├─pve-vm--101--disk--1 252:10 0 4M 0 lvm
│ ├─pve-vm--103--disk--1 252:11 0 15G 0 lvm
│ ├─pve-vm--105--disk--0 252:12 0 16G 0 lvm
│ ├─pve-vm--106--disk--0 252:13 0 3G 0 lvm
│ ├─pve-vm--107--disk--0 252:14 0 8G 0 lvm
│ └─pve-vm--108--disk--0 252:15 0 4G 0 lvm
└─pve-data_tdata 252:3 0 151.1G 0 lvm
└─pve-data-tpool 252:4 0 151.1G 0 lvm
├─pve-data 252:5 0 151.1G 1 lvm
├─pve-vm--100--disk--0 252:6 0 32G 0 lvm
├─pve-vm--100--disk--1 252:7 0 4M 0 lvm
├─pve-vm--101--disk--0 252:8 0 32G 0 lvm
├─pve-vm--102--disk--0 252:9 0 32G 0 lvm
├─pve-vm--101--disk--1 252:10 0 4M 0 lvm
├─pve-vm--103--disk--1 252:11 0 15G 0 lvm
├─pve-vm--105--disk--0 252:12 0 16G 0 lvm
├─pve-vm--106--disk--0 252:13 0 3G 0 lvm
├─pve-vm--107--disk--0 252:14 0 8G 0 lvm
└─pve-vm--108--disk--0 252:15 0 4G 0 lvm


root@proxmox:~# df -h
Filesystem Size Used Avail Use% Mounted on
udev 16G 0 16G 0% /dev
tmpfs 3.2G 3.3M 3.2G 1% /run
/dev/mapper/pve-root 67G 20G 44G 31% /
tmpfs 16G 46M 16G 1% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
efivarfs 128K 35K 89K 29% /sys/firmware/efi/efivars
/dev/fuse 128M 24K 128M 1% /etc/pve
tmpfs 3.2G 0 3.2G 0% /run/user/0


root@proxmox:~# pvs
PV VG Fmt Attr PSize PFree
/dev/nvme0n1p3 pve lvm2 a-- <1.82t 1.59t


root@proxmox:~# vgs
VG #PV #LV #SN Attr VSize VFree
pve 1 13 0 wz--n- <1.82t 1.59t


root@proxmox:~# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
data pve twi-aotz-- <151.12g 75.41 2.27
root pve -wi-ao---- <67.97g
swap pve -wi-ao---- 8.00g
vm-100-disk-0 pve Vwi-aotz-- 32.00g data 96.93
vm-100-disk-1 pve Vwi-aotz-- 4.00m data 14.06
vm-101-disk-0 pve Vwi-a-tz-- 32.00g data 98.23
vm-101-disk-1 pve Vwi-a-tz-- 4.00m data 14.06
vm-102-disk-0 pve Vwi-a-tz-- 32.00g data 55.85
vm-103-disk-1 pve Vwi-aotz-- 15.00g data 82.00
vm-105-disk-0 pve Vwi-a-tz-- 16.00g data 72.69
vm-106-disk-0 pve Vwi-aotz-- 3.00g data 68.45
vm-107-disk-0 pve Vwi-aotz-- 8.00g data 47.75
vm-108-disk-0 pve Vwi-aotz-- 4.00g data 95.57
 
It looks like a done goof'd. I expanded my local (pve-root) volume by 100% (now totals 1.8tb). I was also able to extend the local-lvm (pve-data) by 100%, bringing it up to 1.8tb

Commands in order:

lvextend -l +100%FREE -r /dev/mapper/pve-root
lvreduce -L 250G /dev/mapper/pve-root
lvextend -l +100%FREE -r /dev/mapper/pve-data

Not really sure how to "resize" the pve-root volume, as it still shows 1.8 tb. Some assistance would be helpful.
 
Maybe try booting into gparted and shrinking the volume in there using the GUI and the slider. I think you need to reduce the right hand side slider not the left but definitely read the documentation on shrinking disk volumes using gparted on the internet before you undertake that process.
 
Solrac91 said:
Not really sure how to "resize" the pve-root volume, as it still shows 1.8 tb. Some assistance would be helpful.
Click to expand...
If you have ext4 use "resize2fs /dev/mapper/pve-root", a xfs cannot be shrinked.
 
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