Homelab Proxmox VE crashes

Gamix

New Member
Aug 20, 2024
7
1
3
Hello, I've recently made a Proxmox VE homelab on a PC. Recently he started crashing a lot (happenned 4 times now) even where there a 0 VM / Containers on. I've put a screenshot below to show the message. I cannot SSH or Https into the server when it happens.

Modified configuration :

CPU: Intel Core i7-4770K
RAM: Micron 8 x 4 DDR3 - 1600MHz
Storage: 1 SSD 2To SATA

Original PC :
Dell OptiPlex XE2 SFF
 

Attachments

  • proxmox crash.png
    proxmox crash.png
    24.9 KB · Views: 19
The Ext4 file system is defective. For security reasons, the file system is then remounted in ‘read-only mode’. Perhaps a defective hard drive (dm-1)? Please check the smart values of your drives.

1. Check your filesystem - this only works if the filesystem is unmounted. With this Tutorial you can do this during an reboot.
Code:
fsck.ext4 <device>

2. Check the smart values of your drives

Show your existing drives:
Code:
ls -l /dev/disk/by-id/

Check smart values:
Code:
smartctl -a /dev/disk/by-id/<your drive>
 
I've managed to do some tune2fs test but didn't get any result.

1724279840077.png

At first I couldn't do a SMART Test because it always was crashing so I used a CrystalDiskInfo test via USB (I later did a smartctl test which came back blank too).

1724279943119.png

I'm at a loss here, did I failed the installation of my VE? I used the last version (Proxmox VE 8.2) and my SSD looks healthy.
 
Use a Live CD and
Bash:
fsck.ext4 /dev/sda
fsck.ext4 /dev/sdb

Your root Partition (/) is mounted and you should avoid use fsck with a root partition that's mounted
 
  • Like
Reactions: fireon
I used a Ubuntu LiveCD and did the following (as root) :


Bash:
fsck.ext4 /dev/sda3
e2fsck 1.47.0 (5-Feb-2023)
/dev/sda3 is in use.
e2fsck: Cannot continue, aborting.

fsck.ext4 /dev/sda
e2fsck 1.47.0 (5-Feb-2023)
/dev/sda is in use.
e2fsck: Cannot continue, aborting.


umount /dev/sda
umount: /dev/sda: not mounted


I tried listing it to be sure:

Bash:
fdisk -l
Disk /dev/sda: 1.86 TiB, 2048408248320 bytes, 4000797360 sectors Disk model: SSD 2TB
Units: sectors of 1* 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 8BE224E3-D3F8-4F82-9E34-7A8B29532C69


lsblk

1724348569275.png

How can it be in use if it's not mounted?
 
How can it be in use if it's not mounted?
/dev/sda is the whole disk.
/dev/sda3 is a LVM partition. Ubuntu activates (mounts) LVM partitions on boot. This is good, as you don't need to to this yourself now.

Try fsck.ext4 /dev/mapper/pve-root or fsck.ext4 /dev/pve/root.
 
I got the following results :

Bash:
fsck.ext4 /dev/mapper/pve-root
e2fsck 1.47.0 (5-Feb-2023)
/dev/mapper/pve-root: clean, 53631/6291456 files, 9924461/25165824 blocks

fsck.ext4 /dev/pve/root
e2fsck 1.47.0 (5-Feb-2023)
/dev/pve/root: clean, 53631/6291456 files, 9924461/25165824 blocks
 
Try it again with fsck.ext4 -f

Also
Code:
lvdisplay -m
and
Code:
pvck -v /dev/sda3
 
For the fsck:
Bash:
fsck.ext4 -f /dev/pve/root
e2fsck 1.47.0 (5-Feb-2023)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/pve/root: 53646/6291456 files (0.2% non-contiguous), 9926581/25165824 blocks

fsck.ext4 -f /dev/mapper/pve-root
e2fsck 1.47.0 (5-Feb-2023)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/mapper/pve-root: 53646/6291456 files (0.2% non-contiguous), 9926581/25165824 blocks

The pvck gave me this:
Code:
pvck -v /dev/sda3
    Found label on /dev/sda3, sector 1, type=LVM2 001
    Found text metadata area: offset=4096, size=1044480

lvdisplay gave me the pve partition and some VM I have on it. The data partition is in read only though.

1724358701832.png

1724358835244.png
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!