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PVE: Upgrade UNAS NFS mount from v3 to v4 #2

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opened 2026-05-23 09:18:48 +00:00 by fkrebs · 0 comments
fkrebs commented 2026-05-23 09:18:48 +00:00
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Current state

UNAS mount (192.168.1.31:/var/nfs/shared/storage) uses NFSv3. NFSv4 provides better locking, stateful connections, and eliminates portmapper dependency.

Steps

  1. Verify QNAP exports NFS v4
  2. Update /etc/fstab on nuc: replace vers=3 with vers=4
  3. umount /mnt/pve/unas && mount /mnt/pve/unas
  4. Verify CT103, CT104, CT105 still see data correctly

Risk

Low — same export path, same data. Rollback: revert vers=3 in fstab.

## Current state UNAS mount (`192.168.1.31:/var/nfs/shared/storage`) uses NFSv3. NFSv4 provides better locking, stateful connections, and eliminates portmapper dependency. ## Steps 1. Verify QNAP exports NFS v4 2. Update `/etc/fstab` on nuc: replace `vers=3` with `vers=4` 3. `umount /mnt/pve/unas && mount /mnt/pve/unas` 4. Verify CT103, CT104, CT105 still see data correctly ## Risk Low — same export path, same data. Rollback: revert `vers=3` in fstab.
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Reference: fkrebs/docs#2
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