Struggling to add backup disk...

whatishappening · Jan 2, 2021

I love Proxmox I rarely have any issue with anything. But adding a new physical disk and getting it mounted might be the most frustrating thing I've ever done. I blame linux for this more than proxmox. Long story short I keep an 8TB drive locally in my proxmox host for local backups. That drive recently failed and I have a replacement. I'm about 3 hours deep and I still don't have this disk mounted. Everything I read provides different instructions. And now I'm to a point I don't even know how to clean up my mess.

The disk i'm trying to add is sdc partition is sdc1 as ext4. This should be simple, add ext4 partition, mount /mnt/backup, get uuid and and to fstab. But I got lost somewhere...

Code:

root@proxmox:~# lsblk
NAME                                 MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                                    8:0    0   5.5T  0 disk
└─sda1                                 8:1    0   5.5T  0 part
  ├─VM--Storage-data_tmeta           253:6    0   5.4G  0 lvm
  │ └─VM--Storage-data-tpool         253:8    0   5.4T  0 lvm
  │   ├─VM--Storage-data             253:9    0   5.4T  0 lvm
  │   ├─VM--Storage-vm--102--disk--0 253:10   0    20G  0 lvm
  │   ├─VM--Storage-vm--103--disk--0 253:11   0    64G  0 lvm
  │   ├─VM--Storage-vm--104--disk--0 253:12   0     2T  0 lvm
  │   ├─VM--Storage-vm--105--disk--0 253:13   0   150G  0 lvm
  │   ├─VM--Storage-vm--106--disk--0 253:14   0    32G  0 lvm
  │   ├─VM--Storage-vm--106--disk--1 253:15   0     1T  0 lvm
  │   ├─VM--Storage-vm--100--disk--0 253:16   0    32G  0 lvm
  │   ├─VM--Storage-vm--106--disk--2 253:17   0     2T  0 lvm
  │   ├─VM--Storage-vm--101--disk--0 253:18   0   150G  0 lvm
  │   └─VM--Storage-vm--107--disk--0 253:19   0   150G  0 lvm
  └─VM--Storage-data_tdata           253:7    0   5.4T  0 lvm
    └─VM--Storage-data-tpool         253:8    0   5.4T  0 lvm
      ├─VM--Storage-data             253:9    0   5.4T  0 lvm
      ├─VM--Storage-vm--102--disk--0 253:10   0    20G  0 lvm
      ├─VM--Storage-vm--103--disk--0 253:11   0    64G  0 lvm
      ├─VM--Storage-vm--104--disk--0 253:12   0     2T  0 lvm
      ├─VM--Storage-vm--105--disk--0 253:13   0   150G  0 lvm
      ├─VM--Storage-vm--106--disk--0 253:14   0    32G  0 lvm
      ├─VM--Storage-vm--106--disk--1 253:15   0     1T  0 lvm
      ├─VM--Storage-vm--100--disk--0 253:16   0    32G  0 lvm
      ├─VM--Storage-vm--106--disk--2 253:17   0     2T  0 lvm
      ├─VM--Storage-vm--101--disk--0 253:18   0   150G  0 lvm
      └─VM--Storage-vm--107--disk--0 253:19   0   150G  0 lvm
sdb                                    8:16   0   931G  0 disk
├─sdb1                                 8:17   0  1007K  0 part
├─sdb2                                 8:18   0   512M  0 part /boot/efi
└─sdb3                                 8:19   0 930.5G  0 part
  ├─pve-swap                         253:0    0     8G  0 lvm  [SWAP]
  ├─pve-root                         253:1    0    96G  0 lvm  /
  ├─pve-data_tmeta                   253:2    0   8.1G  0 lvm
  │ └─pve-data-tpool                 253:4    0 794.3G  0 lvm
  │   └─pve-data                     253:5    0 794.3G  0 lvm
  └─pve-data_tdata                   253:3    0 794.3G  0 lvm
    └─pve-data-tpool                 253:4    0 794.3G  0 lvm
      └─pve-data                     253:5    0 794.3G  0 lvm
sdc                                    8:32   0   7.3T  0 disk
└─sdc1                                 8:33   0   7.3T  0 part
sr0                                   11:0    1  1024M  0 rom
root@proxmox:~#

Thought I had it all figured out but I can't get it to mount in fstab because I can't find the UUID for the sdc1 partition.

Code:

root@proxmox:~# blkid | grep UUID=
/dev/sda1: UUID="jwZ1Ww-tzNo-V95y-320H-fJnT-adjV-XamR5K" TYPE="LVM2_member" PARTUUID="056625a2-dfec-c641-938e-ead94bdd8357"
/dev/sdb1: UUID="55db1fa1-7ce6-43f7-82b4-c47242fb082e" TYPE="ext4" PARTUUID="8a3f0842-dbbb-4c9c-9338-b78f056fd711"
/dev/sdb2: UUID="DFB5-0412" TYPE="vfat" PARTUUID="1a418623-371c-4d22-be2b-0f4025ce5dd7"
/dev/sdb3: UUID="ejdmrz-fwP1-aSUC-29bl-JVnP-oisg-bLPtha" TYPE="LVM2_member" PARTUUID="d74cb685-6f1f-4f13-8be7-f1eb1b91ac7a"
/dev/mapper/pve-swap: UUID="eef7ce59-ff7a-49fa-993c-dfedbb10190d" TYPE="swap"
/dev/mapper/pve-root: UUID="cb54c624-239e-44cd-8beb-b8f8a65f0793" TYPE="xfs"
/dev/mapper/VM--Storage-vm--102--disk--0: UUID="a49345c1-3e91-4ea0-a933-72b9ddd701f1" TYPE="ext4"
/dev/mapper/VM--Storage-vm--100--disk--0: UUID="364f1a5a-a83f-4aa3-b4e1-264c34e34ff5" TYPE="ext4"
/dev/mapper/VM--Storage-vm--107--disk--0: UUID="69532244-4007-49d9-98ce-9c9107a541f3" TYPE="ext4"
/dev/sdc1: PARTUUID="2274962e-6a77-c64c-be9a-095dacbd73a7"
/dev/mapper/VM--Storage-vm--103--disk--0: PTUUID="8bcbe418" PTTYPE="dos"
/dev/mapper/VM--Storage-vm--104--disk--0: PTUUID="4fb0e9e5-5426-43a5-a902-336df1b93ed5" PTTYPE="gpt"
/dev/mapper/VM--Storage-vm--105--disk--0: PTUUID="8f687c39" PTTYPE="dos"
/dev/mapper/VM--Storage-vm--106--disk--0: PTUUID="886d83b3" PTTYPE="dos"
/dev/mapper/VM--Storage-vm--106--disk--1: PTUUID="052f20fd-a56a-4abc-b42a-9b08a0662915" PTTYPE="gpt"
/dev/mapper/VM--Storage-vm--106--disk--2: PTUUID="b3ffb63e-6186-4ef0-8fda-af0f40023e5b" PTTYPE="gpt"
/dev/mapper/VM--Storage-vm--101--disk--0: PTUUID="9b5401af" PTTYPE="dos"
root@proxmox:~#

whatishappening · Jan 2, 2021

I'm such an idiot....

I missed a step, I created the partition but never created the file system. I needed to run mkfs.ext4 /dev/sdc1.

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Struggling to add backup disk...

whatishappening

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whatishappening

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