[Lxc-users] Mount to NFS fails in containers fstab, but succeeds in the host & guest OS's

[David Parks]

On the host OS, this NFS command works:

mount -t nfs4 -o rw,intr,timeo=600,port=2051 10.1.3.67:/ /mnt/hdfs

That same mount works from within the container (the container is set to unconfined so it can perform mounts).

When I try to add this mount to the fstab file of the container it fails:

root at atlas01:/var/lib/lxc# cat testsandboxa01/fstab
proc            proc         proc    nodev,noexec,nosuid 0 0
sysfs           sys          sysfs defaults  0 0
10.1.3.67:/     /var/lib/lxc/testsandboxa01/rootfs/mnt/hdfs    nfs4  rw,intr,timeo=600,port=2051      0 0

Try to start the container and we get:

root at atlas01:/var/lib/lxc# lxc-start -n testsandboxa01
lxc-start: Invalid argument - failed to mount '10.1.3.67:/' on '/usr/lib/x86_64-linux-gnu/lxc//mnt/hdfs'
lxc-start: failed to setup the mounts for 'testsandboxa01'
lxc-start: failed to setup the container
lxc-start: invalid sequence number 1. expected 2
lxc-start: failed to spawn 'testsandboxa01'

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