Backup lxc with exit code 2

V

Vittorio

Active Member
Jul 24, 2019
68
5
28
59
Hi

I'm trying to backup an unprivileged lxc and I get an error

Code: 
116: 2023-06-24 04:49:04 INFO: Starting Backup of VM 116 (lxc)
116: 2023-06-24 04:49:04 INFO: status = running
116: 2023-06-24 04:49:04 INFO: backup mode: stop
116: 2023-06-24 04:49:04 INFO: ionice priority: 7
116: 2023-06-24 04:49:04 INFO: CT Name: mariadb
116: 2023-06-24 04:49:04 INFO: including mount point rootfs ('/') in backup
116: 2023-06-24 04:49:04 INFO: stopping virtual guest
116: 2023-06-24 04:49:07 INFO: creating vzdump archive '/mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-lxc-116-2023_06_24-04_49_04.tar.zst'
116: 2023-06-24 04:49:07 INFO: tar: /mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-lxc-116-2023_06_24-04_49_04.tmp: Cannot open: Permission denied
116: 2023-06-24 04:49:07 INFO: tar: Error is not recoverable: exiting now
116: 2023-06-24 04:49:07 INFO: restarting vm
116: 2023-06-24 04:49:10 INFO: guest is online again after 6 seconds
116: 2023-06-24 04:49:10 ERROR: Backup of VM 116 failed - command 'set -o pipefail && lxc-usernsexec -m u:0:100000:65536 -m g:0:100000:65536 -- tar cpf - --totals --one-file-system -p --sparse --numeric-owner --acls --xattrs '--xattrs-include=user.*' '--xattrs-include=security.capability' '--warning=no-file-ignored' '--warning=no-xattr-write' --one-file-system '--warning=no-file-ignored' '--directory=/mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-lxc-116-2023_06_24-04_49_04.tmp' ./etc/vzdump/pct.conf ./etc/vzdump/pct.fw '--directory=/mnt/vzsnap0' --no-anchored '--exclude=lost+found' --anchored '--exclude=./tmp/?*' '--exclude=./var/tmp/?*' '--exclude=./var/run/?*.pid' ./ | zstd --rsyncable '--threads=1' >/mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-lxc-116-2023_06_24-04_49_04.tar.dat' failed:
exit code 2

And this is the lxc config

Code: 
arch: amd64
cores: 1
features: keyctl=1,nesting=1
hostname: mariadb
memory: 1024
net0: name=eth0,bridge=vmbr0,gw=192.168.1.10,hwaddr=5A:42:BB:78:D9:B0,ip=192.168.1.39/24,type=veth
onboot: 1
ostype: debian
rootfs: DATI:vm-116-disk-0,size=6G
startup: order=2,up=180
swap: 512
tags: proxmox-helper-scripts
unprivileged: 1
root@pve:/etc/pve/lxc#

What can I check?

Thanks
 
hello looks like a permission error on the nfs share "/mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-lxc-116-2023_06_24-04_49_04.tmp: Cannot open: Permission denied".


check so that the proxmox host has read and write access to the "NFS-QNAP-Proxmox-Backup" share.
 
weconnect said:
hello looks like a permission error on the nfs share "/mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-lxc-116-2023_06_24-04_49_04.tmp: Cannot open: Permission denied".


check so that the proxmox host has read and write access to the "NFS-QNAP-Proxmox-Backup" share.
Click to expand...
Strange because the backup job include a vm and an lxc both on same destination and the vm works, the lxc does not

Here is the full log

Code: 
vzdump 106 116 --compress zstd --mode stop --quiet 1 --storage NFS-QNAP-Proxmox-Backup --mailnotification failure --mailto woody4165@gmail.com --notes-template '{{guestname}}' --prune-backups 'keep-last=3'


106: 2023-06-24 04:30:00 INFO: Starting Backup of VM 106 (qemu)
106: 2023-06-24 04:30:00 INFO: status = running
106: 2023-06-24 04:30:00 INFO: backup mode: stop
106: 2023-06-24 04:30:00 INFO: ionice priority: 7
106: 2023-06-24 04:30:00 INFO: VM Name: haos9.3
106: 2023-06-24 04:30:00 INFO: include disk 'scsi0' 'DATI:vm-106-disk-1' 42G
106: 2023-06-24 04:30:00 INFO: include disk 'efidisk0' 'DATI:vm-106-disk-0' 4M
106: 2023-06-24 04:30:00 INFO: stopping virtual guest
106: 2023-06-24 04:30:20 INFO: snapshots found (not included into backup)
106: 2023-06-24 04:30:20 INFO: creating vzdump archive '/mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-qemu-106-2023_06_24-04_30_00.vma.zst'
106: 2023-06-24 04:30:20 INFO: starting kvm to execute backup task
106: 2023-06-24 04:30:21 INFO: started backup task '653d9045-d2fe-46ac-8100-543327b5ed1e'
106: 2023-06-24 04:30:21 INFO: resuming VM again after 21 seconds
106: 2023-06-24 04:30:24 INFO:   0% (406.0 MiB of 42.0 GiB) in 3s, read: 135.3 MiB/s, write: 101.9 MiB/s
106: 2023-06-24 04:30:27 INFO:   2% (902.6 MiB of 42.0 GiB) in 6s, read: 165.5 MiB/s, write: 104.3 MiB/s
106: 2023-06-24 04:30:31 INFO:   3% (1.3 GiB of 42.0 GiB) in 10s, read: 115.1 MiB/s, write: 97.8 MiB/s
106: 2023-06-24 04:30:36 INFO:   4% (1.7 GiB of 42.0 GiB) in 15s, read: 79.0 MiB/s, write: 68.4 MiB/s
106: 2023-06-24 04:30:40 INFO:   5% (2.1 GiB of 42.0 GiB) in 19s, read: 106.0 MiB/s, write: 79.8 MiB/s
106: 2023-06-24 04:30:44 INFO:   6% (2.6 GiB of 42.0 GiB) in 23s, read: 115.1 MiB/s, write: 101.7 MiB/s
106: 2023-06-24 04:30:48 INFO:   7% (3.0 GiB of 42.0 GiB) in 27s, read: 106.0 MiB/s, write: 93.2 MiB/s
106: 2023-06-24 04:30:52 INFO:   8% (3.4 GiB of 42.0 GiB) in 31s, read: 100.6 MiB/s, write: 95.4 MiB/s
106: 2023-06-24 04:30:55 INFO:   9% (3.8 GiB of 42.0 GiB) in 34s, read: 157.1 MiB/s, write: 110.7 MiB/s
106: 2023-06-24 04:30:58 INFO:  10% (4.3 GiB of 42.0 GiB) in 37s, read: 145.0 MiB/s, write: 112.6 MiB/s
106: 2023-06-24 04:31:01 INFO:  11% (4.6 GiB of 42.0 GiB) in 40s, read: 122.0 MiB/s, write: 94.8 MiB/s
106: 2023-06-24 04:31:07 INFO:  12% (5.1 GiB of 42.0 GiB) in 46s, read: 86.4 MiB/s, write: 76.3 MiB/s
106: 2023-06-24 04:31:12 INFO:  13% (5.5 GiB of 42.0 GiB) in 51s, read: 72.5 MiB/s, write: 63.5 MiB/s
106: 2023-06-24 04:31:17 INFO:  14% (5.9 GiB of 42.0 GiB) in 56s, read: 81.2 MiB/s, write: 68.9 MiB/s
106: 2023-06-24 04:31:34 INFO:  15% (6.3 GiB of 42.0 GiB) in 1m 13s, read: 27.3 MiB/s, write: 21.9 MiB/s
106: 2023-06-24 04:31:53 INFO:  16% (6.7 GiB of 42.0 GiB) in 1m 32s, read: 20.6 MiB/s, write: 19.8 MiB/s
106: 2023-06-24 04:32:16 INFO:  17% (7.1 GiB of 42.0 GiB) in 1m 55s, read: 18.9 MiB/s, write: 16.7 MiB/s
106: 2023-06-24 04:32:32 INFO:  18% (7.6 GiB of 42.0 GiB) in 2m 11s, read: 28.1 MiB/s, write: 22.7 MiB/s
106: 2023-06-24 04:32:48 INFO:  19% (8.0 GiB of 42.0 GiB) in 2m 27s, read: 26.5 MiB/s, write: 22.6 MiB/s
106: 2023-06-24 04:32:59 INFO:  20% (8.4 GiB of 42.0 GiB) in 2m 38s, read: 40.2 MiB/s, write: 29.5 MiB/s
106: 2023-06-24 04:33:11 INFO:  21% (8.9 GiB of 42.0 GiB) in 2m 50s, read: 35.6 MiB/s, write: 26.2 MiB/s
106: 2023-06-24 04:33:20 INFO:  22% (9.3 GiB of 42.0 GiB) in 2m 59s, read: 47.9 MiB/s, write: 39.2 MiB/s
106: 2023-06-24 04:33:38 INFO:  23% (9.7 GiB of 42.0 GiB) in 3m 17s, read: 24.4 MiB/s, write: 22.1 MiB/s
106: 2023-06-24 04:33:49 INFO:  24% (10.1 GiB of 42.0 GiB) in 3m 28s, read: 36.6 MiB/s, write: 27.7 MiB/s
106: 2023-06-24 04:34:02 INFO:  25% (10.6 GiB of 42.0 GiB) in 3m 41s, read: 36.5 MiB/s, write: 23.4 MiB/s
106: 2023-06-24 04:34:22 INFO:  26% (10.9 GiB of 42.0 GiB) in 4m 1s, read: 19.6 MiB/s, write: 16.1 MiB/s
106: 2023-06-24 04:34:31 INFO:  27% (11.3 GiB of 42.0 GiB) in 4m 10s, read: 46.3 MiB/s, write: 42.4 MiB/s
106: 2023-06-24 04:34:44 INFO:  28% (11.9 GiB of 42.0 GiB) in 4m 23s, read: 41.8 MiB/s, write: 27.4 MiB/s
106: 2023-06-24 04:34:53 INFO:  29% (12.2 GiB of 42.0 GiB) in 4m 32s, read: 35.4 MiB/s, write: 27.5 MiB/s
106: 2023-06-24 04:35:11 INFO:  30% (12.6 GiB of 42.0 GiB) in 4m 50s, read: 24.2 MiB/s, write: 19.1 MiB/s
106: 2023-06-24 04:35:21 INFO:  31% (13.1 GiB of 42.0 GiB) in 5m, read: 46.0 MiB/s, write: 34.0 MiB/s
106: 2023-06-24 04:35:30 INFO:  32% (13.4 GiB of 42.0 GiB) in 5m 9s, read: 43.1 MiB/s, write: 37.6 MiB/s
106: 2023-06-24 04:35:40 INFO:  33% (13.9 GiB of 42.0 GiB) in 5m 19s, read: 45.3 MiB/s, write: 35.8 MiB/s
106: 2023-06-24 04:35:52 INFO:  34% (14.3 GiB of 42.0 GiB) in 5m 31s, read: 33.8 MiB/s, write: 22.7 MiB/s
106: 2023-06-24 04:36:17 INFO:  35% (14.7 GiB of 42.0 GiB) in 5m 56s, read: 17.5 MiB/s, write: 15.9 MiB/s
106: 2023-06-24 04:36:32 INFO:  36% (15.1 GiB of 42.0 GiB) in 6m 11s, read: 29.0 MiB/s, write: 27.0 MiB/s
106: 2023-06-24 04:36:42 INFO:  37% (15.6 GiB of 42.0 GiB) in 6m 21s, read: 43.1 MiB/s, write: 34.5 MiB/s
106: 2023-06-24 04:36:53 INFO:  38% (16.0 GiB of 42.0 GiB) in 6m 32s, read: 39.9 MiB/s, write: 38.1 MiB/s
106: 2023-06-24 04:37:08 INFO:  39% (16.4 GiB of 42.0 GiB) in 6m 47s, read: 27.8 MiB/s, write: 24.5 MiB/s
106: 2023-06-24 04:37:25 INFO:  40% (16.8 GiB of 42.0 GiB) in 7m 4s, read: 27.5 MiB/s, write: 23.2 MiB/s
106: 2023-06-24 04:37:40 INFO:  41% (17.2 GiB of 42.0 GiB) in 7m 19s, read: 25.6 MiB/s, write: 19.9 MiB/s
106: 2023-06-24 04:37:51 INFO:  42% (17.7 GiB of 42.0 GiB) in 7m 30s, read: 47.8 MiB/s, write: 29.9 MiB/s
106: 2023-06-24 04:37:54 INFO:  44% (18.5 GiB of 42.0 GiB) in 7m 33s, read: 261.0 MiB/s, write: 46.1 MiB/s
106: 2023-06-24 04:38:04 INFO:  45% (18.9 GiB of 42.0 GiB) in 7m 43s, read: 42.8 MiB/s, write: 38.8 MiB/s
106: 2023-06-24 04:38:15 INFO:  46% (19.3 GiB of 42.0 GiB) in 7m 54s, read: 37.6 MiB/s, write: 34.1 MiB/s
106: 2023-06-24 04:38:36 INFO:  47% (19.8 GiB of 42.0 GiB) in 8m 15s, read: 21.9 MiB/s, write: 20.7 MiB/s
106: 2023-06-24 04:38:50 INFO:  48% (20.2 GiB of 42.0 GiB) in 8m 29s, read: 29.5 MiB/s, write: 27.1 MiB/s
106: 2023-06-24 04:39:11 INFO:  49% (20.6 GiB of 42.0 GiB) in 8m 50s, read: 20.0 MiB/s, write: 19.3 MiB/s
106: 2023-06-24 04:39:27 INFO:  50% (21.0 GiB of 42.0 GiB) in 9m 6s, read: 27.9 MiB/s, write: 25.0 MiB/s
106: 2023-06-24 04:39:34 INFO:  51% (21.5 GiB of 42.0 GiB) in 9m 13s, read: 72.5 MiB/s, write: 20.6 MiB/s
106: 2023-06-24 04:39:48 INFO:  52% (21.9 GiB of 42.0 GiB) in 9m 27s, read: 25.4 MiB/s, write: 20.2 MiB/s
106: 2023-06-24 04:39:56 INFO:  53% (22.3 GiB of 42.0 GiB) in 9m 35s, read: 53.0 MiB/s, write: 32.9 MiB/s
106: 2023-06-24 04:39:59 INFO:  54% (22.8 GiB of 42.0 GiB) in 9m 38s, read: 174.0 MiB/s, write: 34.8 MiB/s
106: 2023-06-24 04:40:15 INFO:  55% (23.2 GiB of 42.0 GiB) in 9m 54s, read: 23.3 MiB/s, write: 18.0 MiB/s
106: 2023-06-24 04:40:29 INFO:  56% (23.5 GiB of 42.0 GiB) in 10m 8s, read: 27.7 MiB/s, write: 20.0 MiB/s
106: 2023-06-24 04:40:48 INFO:  57% (24.0 GiB of 42.0 GiB) in 10m 27s, read: 24.0 MiB/s, write: 20.4 MiB/s
106: 2023-06-24 04:40:58 INFO:  58% (24.4 GiB of 42.0 GiB) in 10m 37s, read: 40.2 MiB/s, write: 33.1 MiB/s
106: 2023-06-24 04:41:09 INFO:  59% (24.9 GiB of 42.0 GiB) in 10m 48s, read: 46.5 MiB/s, write: 28.8 MiB/s
106: 2023-06-24 04:41:17 INFO:  60% (25.2 GiB of 42.0 GiB) in 10m 56s, read: 43.5 MiB/s, write: 32.7 MiB/s
106: 2023-06-24 04:41:29 INFO:  61% (25.7 GiB of 42.0 GiB) in 11m 8s, read: 39.3 MiB/s, write: 31.2 MiB/s
106: 2023-06-24 04:41:45 INFO:  62% (26.1 GiB of 42.0 GiB) in 11m 24s, read: 25.4 MiB/s, write: 18.7 MiB/s
106: 2023-06-24 04:41:53 INFO:  63% (26.5 GiB of 42.0 GiB) in 11m 32s, read: 53.9 MiB/s, write: 33.1 MiB/s
106: 2023-06-24 04:41:59 INFO:  64% (26.9 GiB of 42.0 GiB) in 11m 38s, read: 67.7 MiB/s, write: 37.1 MiB/s
106: 2023-06-24 04:42:14 INFO:  65% (27.3 GiB of 42.0 GiB) in 11m 53s, read: 29.0 MiB/s, write: 22.8 MiB/s
106: 2023-06-24 04:42:35 INFO:  66% (27.7 GiB of 42.0 GiB) in 12m 14s, read: 20.4 MiB/s, write: 15.2 MiB/s
106: 2023-06-24 04:42:50 INFO:  67% (28.2 GiB of 42.0 GiB) in 12m 29s, read: 29.2 MiB/s, write: 22.1 MiB/s
106: 2023-06-24 04:43:01 INFO:  68% (28.6 GiB of 42.0 GiB) in 12m 40s, read: 41.9 MiB/s, write: 29.8 MiB/s
106: 2023-06-24 04:43:13 INFO:  69% (29.0 GiB of 42.0 GiB) in 12m 52s, read: 35.0 MiB/s, write: 20.8 MiB/s
106: 2023-06-24 04:43:27 INFO:  70% (29.4 GiB of 42.0 GiB) in 13m 6s, read: 28.5 MiB/s, write: 21.3 MiB/s
106: 2023-06-24 04:43:46 INFO:  71% (29.8 GiB of 42.0 GiB) in 13m 25s, read: 23.3 MiB/s, write: 19.8 MiB/s
106: 2023-06-24 04:43:58 INFO:  72% (30.3 GiB of 42.0 GiB) in 13m 37s, read: 37.2 MiB/s, write: 28.1 MiB/s
106: 2023-06-24 04:44:14 INFO:  73% (30.8 GiB of 42.0 GiB) in 13m 53s, read: 33.2 MiB/s, write: 19.3 MiB/s
106: 2023-06-24 04:44:17 INFO:  75% (31.5 GiB of 42.0 GiB) in 13m 56s, read: 250.8 MiB/s, write: 17.2 MiB/s
106: 2023-06-24 04:44:36 INFO:  76% (31.9 GiB of 42.0 GiB) in 14m 15s, read: 22.5 MiB/s, write: 20.7 MiB/s
106: 2023-06-24 04:44:53 INFO:  77% (32.3 GiB of 42.0 GiB) in 14m 32s, read: 24.1 MiB/s, write: 22.3 MiB/s
106: 2023-06-24 04:45:18 INFO:  78% (32.8 GiB of 42.0 GiB) in 14m 57s, read: 19.7 MiB/s, write: 17.8 MiB/s
106: 2023-06-24 04:45:33 INFO:  79% (33.2 GiB of 42.0 GiB) in 15m 12s, read: 24.9 MiB/s, write: 23.4 MiB/s
106: 2023-06-24 04:46:04 INFO:  80% (33.6 GiB of 42.0 GiB) in 15m 43s, read: 14.0 MiB/s, write: 14.0 MiB/s
106: 2023-06-24 04:46:35 INFO:  85% (35.9 GiB of 42.0 GiB) in 16m 14s, read: 75.4 MiB/s, write: 11.1 MiB/s
106: 2023-06-24 04:46:38 INFO: 100% (42.0 GiB of 42.0 GiB) in 16m 17s, read: 2.0 GiB/s, write: 0 B/s
106: 2023-06-24 04:46:38 INFO: backup is sparse: 16.31 GiB (38%) total zero data
106: 2023-06-24 04:46:38 INFO: transferred 42.00 GiB in 977 seconds (44.0 MiB/s)
106: 2023-06-24 04:48:57 INFO: archive file size: 11.61GB
106: 2023-06-24 04:48:57 INFO: adding notes to backup
106: 2023-06-24 04:48:57 INFO: prune older backups with retention: keep-last=3
106: 2023-06-24 04:48:58 INFO: removing backup 'NFS-QNAP-Proxmox-Backup:backup/vzdump-qemu-106-2023_06_21-04_30_01.vma.zst'
106: 2023-06-24 04:49:04 INFO: pruned 1 backup(s) not covered by keep-retention policy
106: 2023-06-24 04:49:04 INFO: Finished Backup of VM 106 (00:19:04)

116: 2023-06-24 04:49:04 INFO: Starting Backup of VM 116 (lxc)
116: 2023-06-24 04:49:04 INFO: status = running
116: 2023-06-24 04:49:04 INFO: backup mode: stop
116: 2023-06-24 04:49:04 INFO: ionice priority: 7
116: 2023-06-24 04:49:04 INFO: CT Name: mariadb
116: 2023-06-24 04:49:04 INFO: including mount point rootfs ('/') in backup
116: 2023-06-24 04:49:04 INFO: stopping virtual guest
116: 2023-06-24 04:49:07 INFO: creating vzdump archive '/mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-lxc-116-2023_06_24-04_49_04.tar.zst'
116: 2023-06-24 04:49:07 INFO: tar: /mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-lxc-116-2023_06_24-04_49_04.tmp: Cannot open: Permission denied
116: 2023-06-24 04:49:07 INFO: tar: Error is not recoverable: exiting now
116: 2023-06-24 04:49:07 INFO: restarting vm
116: 2023-06-24 04:49:10 INFO: guest is online again after 6 seconds
116: 2023-06-24 04:49:10 ERROR: Backup of VM 116 failed - command 'set -o pipefail && lxc-usernsexec -m u:0:100000:65536 -m g:0:100000:65536 -- tar cpf - --totals --one-file-system -p --sparse --numeric-owner --acls --xattrs '--xattrs-include=user.*' '--xattrs-include=security.capability' '--warning=no-file-ignored' '--warning=no-xattr-write' --one-file-system '--warning=no-file-ignored' '--directory=/mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-lxc-116-2023_06_24-04_49_04.tmp' ./etc/vzdump/pct.conf ./etc/vzdump/pct.fw '--directory=/mnt/vzsnap0' --no-anchored '--exclude=lost+found' --anchored '--exclude=./tmp/?*' '--exclude=./var/tmp/?*' '--exclude=./var/run/?*.pid' ./ | zstd --rsyncable '--threads=1' >/mnt/pve/NFS-QNAP-Proxmox-Backup/dump/vzdump-lxc-116-2023_06_24-04_49_04.tar.dat' failed: exit code 2
 
I have this issue too, and my problem is definitely not a permission issue. My LXC is the only failing in about 30 vms/lxcs.
 
You must log in or register to reply here.

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!

Quick Navigation

Home Get Subscription Wiki Downloads Proxmox Customer Portal About

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!
Community platform by XenForo® © 2010-2024 XenForo Ltd.
Top Bottom
Back