System unbootable - grub error: disk lvmid not found

coldfire7 said:
It won't work unless you have at least 1G empty space. You can try the opposite of that by first running
lvreduce -L -1G /dev/pve/root
then
lvextend -L +1G /dev/pve/root
but that can cause data loss if your drive is almost full or your data is scattered all over your drive.
Click to expand...
How can I find out if it could work error free?
I have 12 VMs running that I definitely don't want to break.


Code: 
# lsblk
NAME                                      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda                                         8:0    0 13.1T  0 disk
├─sda1                                      8:1    0 1007K  0 part
├─sda2                                      8:2    0  512M  0 part /boot/efi
└─sda3                                      8:3    0 13.1T  0 part
  ├─pve-swap                              253:0    0    8G  0 lvm  [SWAP]
  ├─pve-root                              253:1    0    2T  0 lvm  /
  ├─pve-data_tmeta                        253:2    0  100M  0 lvm 
  │ └─pve-data-tpool                      253:4    0 24.2T  0 lvm 
  │   ├─pve-data                          253:5    0 24.2T  1 lvm 
  │   ├─pve-vm--100--disk--0              253:6    0  500G  0 lvm 
  │   ├─pve-vm--101--disk--0              253:7    0    1G  0 lvm 
  │   ├─pve-vm--101--disk--1              253:8    0  300G  0 lvm 
  │   ├─pve-vm--101--disk--2              253:9    0  300G  0 lvm 
  │   ├─pve-vm--999--disk--0              253:10   0   32G  0 lvm 
  │   ├─pve-vm--102--disk--0              253:11   0  128G  0 lvm 
  │   ├─pve-vm--102--disk--1              253:12   0  100G  0 lvm 
  │   ├─pve-vm--200--disk--1              253:13   0  100G  0 lvm 
  │   ├─pve-vm--200--disk--0              253:14   0  100G  0 lvm 
  │   ├─pve-vm--103--disk--0              253:15   0   25G  0 lvm 
  │   ├─pve-vm--104--disk--0              253:16   0   25G  0 lvm 
  │   ├─pve-vm--105--disk--0              253:17   0   50G  0 lvm 
  │   ├─pve-vm--106--disk--0              253:18   0    8G  0 lvm 
  │   ├─pve-vm--300--disk--1              253:19   0   20G  0 lvm 
  │   ├─pve-vm--105--state--Upgrade_1_4_8 253:20   0 16.5G  0 lvm 
  │   ├─pve-vm--107--disk--0              253:21   0  300G  0 lvm 
  │   ├─pve-vm--108--disk--0              253:22   0  100G  0 lvm 
  │   ├─pve-vm--109--disk--0              253:23   0    1G  0 lvm 
  │   ├─pve-vm--109--disk--1              253:24   0   20G  0 lvm 
  │   ├─pve-vm--110--disk--0              253:25   0   24G  0 lvm 
  │   ├─pve-vm--111--disk--0              253:26   0   32G  0 lvm 
  │   └─pve-vm--112--disk--0              253:27   0   32G  0 lvm 
  └─pve-data_tdata                        253:3    0 24.2T  0 lvm 
    └─pve-data-tpool                      253:4    0 24.2T  0 lvm 
      ├─pve-data                          253:5    0 24.2T  1 lvm 
      ├─pve-vm--100--disk--0              253:6    0  500G  0 lvm 
      ├─pve-vm--101--disk--0              253:7    0    1G  0 lvm 
      ├─pve-vm--101--disk--1              253:8    0  300G  0 lvm 
      ├─pve-vm--101--disk--2              253:9    0  300G  0 lvm 
      ├─pve-vm--999--disk--0              253:10   0   32G  0 lvm 
      ├─pve-vm--102--disk--0              253:11   0  128G  0 lvm 
      ├─pve-vm--102--disk--1              253:12   0  100G  0 lvm 
      ├─pve-vm--200--disk--1              253:13   0  100G  0 lvm 
      ├─pve-vm--200--disk--0              253:14   0  100G  0 lvm 
      ├─pve-vm--103--disk--0              253:15   0   25G  0 lvm 
      ├─pve-vm--104--disk--0              253:16   0   25G  0 lvm 
      ├─pve-vm--105--disk--0              253:17   0   50G  0 lvm 
      ├─pve-vm--106--disk--0              253:18   0    8G  0 lvm 
      ├─pve-vm--300--disk--1              253:19   0   20G  0 lvm 
      ├─pve-vm--105--state--Upgrade_1_4_8 253:20   0 16.5G  0 lvm 
      ├─pve-vm--107--disk--0              253:21   0  300G  0 lvm 
      ├─pve-vm--108--disk--0              253:22   0  100G  0 lvm 
      ├─pve-vm--109--disk--0              253:23   0    1G  0 lvm 
      ├─pve-vm--109--disk--1              253:24   0   20G  0 lvm 
      ├─pve-vm--110--disk--0              253:25   0   24G  0 lvm 
      ├─pve-vm--111--disk--0              253:26   0   32G  0 lvm 
      └─pve-vm--112--disk--0              253:27   0   32G  0 lvm 
sdb                                         8:16   0 13.1T  0 disk
└─sdb1                                      8:17   0 13.1T  0 part
  ├─pve-root                              253:1    0    2T  0 lvm  /
  └─pve-data_tdata                        253:3    0 24.2T  0 lvm 
    └─pve-data-tpool                      253:4    0 24.2T  0 lvm 
      ├─pve-data                          253:5    0 24.2T  1 lvm 
      ├─pve-vm--100--disk--0              253:6    0  500G  0 lvm 
      ├─pve-vm--101--disk--0              253:7    0    1G  0 lvm 
      ├─pve-vm--101--disk--1              253:8    0  300G  0 lvm 
      ├─pve-vm--101--disk--2              253:9    0  300G  0 lvm 
      ├─pve-vm--999--disk--0              253:10   0   32G  0 lvm 
      ├─pve-vm--102--disk--0              253:11   0  128G  0 lvm 
      ├─pve-vm--102--disk--1              253:12   0  100G  0 lvm 
      ├─pve-vm--200--disk--1              253:13   0  100G  0 lvm 
      ├─pve-vm--200--disk--0              253:14   0  100G  0 lvm 
      ├─pve-vm--103--disk--0              253:15   0   25G  0 lvm 
      ├─pve-vm--104--disk--0              253:16   0   25G  0 lvm 
      ├─pve-vm--105--disk--0              253:17   0   50G  0 lvm 
      ├─pve-vm--106--disk--0              253:18   0    8G  0 lvm 
      ├─pve-vm--300--disk--1              253:19   0   20G  0 lvm 
      ├─pve-vm--105--state--Upgrade_1_4_8 253:20   0 16.5G  0 lvm 
      ├─pve-vm--107--disk--0              253:21   0  300G  0 lvm 
      ├─pve-vm--108--disk--0              253:22   0  100G  0 lvm 
      ├─pve-vm--109--disk--0              253:23   0    1G  0 lvm 
      ├─pve-vm--109--disk--1              253:24   0   20G  0 lvm 
      ├─pve-vm--110--disk--0              253:25   0   24G  0 lvm 
      ├─pve-vm--111--disk--0              253:26   0   32G  0 lvm 
      └─pve-vm--112--disk--0              253:27   0   32G  0 lvm

Code: 
# df -h
Filesystem                Size  Used Avail Use% Mounted on
udev                      504G     0  504G   0% /dev
tmpfs                     101G  6.3M  101G   1% /run
/dev/mapper/pve-root      2.0T   89G  1.8T   5% /
tmpfs                     504G   46M  504G   1% /dev/shm
tmpfs                     5.0M     0  5.0M   0% /run/lock
/dev/sda2                 511M  328K  511M   1% /boot/efi
/dev/fuse                 128M   24K  128M   1% /etc/pve
x.x.x.x:/pve-share  5.4T  2.0T  3.4T  38% /mnt/pve/pve-share
tmpfs                     101G     0  101G   0% /run/user/0
 
Here, we solved this problem using this steps:

- Booting the server (Dell PowerEdge) using a live USB with LVM (we used proxmox install)
- Running # vgscan
- Creating a 4MB logical volume named grubtemp in the pve volume group: # lvcreate -L 4M pve -n grubtemp
- Rebooting the server!
After, PVE booted normally now! (Yeah!)

From this link: https://pve.proxmox.com/wiki/Recover_From_Grub_Failure
 
  • Like
Reactions: oggy.rio, jameswang, Kosh and 1 other person
danielscota said:
Here, we solved this problem using this steps:

- Booting the server (Dell PowerEdge) using a live USB with LVM (we used proxmox install)
- Running # vgscan
- Creating a 4MB logical volume named grubtemp in the pve volume group: # lvcreate -L 4M pve -n grubtemp
- Rebooting the server!
After, PVE booted normally now! (Yeah!)

From this link: https://pve.proxmox.com/wiki/Recover_From_Grub_Failure
Click to expand...
Thank you, but I switched all to zfs... And now 0 problems.
 
danielscota said:
Here, we solved this problem using this steps:

- Booting the server (Dell PowerEdge) using a live USB with LVM (we used proxmox install)
- Running # vgscan
- Creating a 4MB logical volume named grubtemp in the pve volume group: # lvcreate -L 4M pve -n grubtemp
- Rebooting the server!
After, PVE booted normally now! (Yeah!)

From this link: https://pve.proxmox.com/wiki/Recover_From_Grub_Failure
Click to expand...
We had same issue after adding more RAM in our 7.4-16 server. The above fixed it. Thank you.
 
danielscota said:
Here, we solved this problem using this steps:

- Booting the server (Dell PowerEdge) using a live USB with LVM (we used proxmox install)
- Running # vgscan
- Creating a 4MB logical volume named grubtemp in the pve volume group: # lvcreate -L 4M pve -n grubtemp
- Rebooting the server!
After, PVE booted normally now! (Yeah!)

From this link: https://pve.proxmox.com/wiki/Recover_From_Grub_Failure
Click to expand...
This is giving me issues.. still.. When running the lvcreate command I get:

Code: 
Volume group "pve" has insufficient free space (0 extents): 1 required.

EDIT: even after resize (reducing) the disk and introducing new 4MB (temporally) volume group didn't fix the grub bootloader issue. I followed all the steps on the Proxmox wiki without any luck. I still have the same issue..

I'm forced to reinstall Proxmox ;(
 
Last edited:
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