Arch Linux

carlossss111

Member

Registered: 2024-12-19

Posts: 8

Mount command hangs when trying to mount an NFS paritition

Hi,

I'm using an Arch Linux laptop client (static IP=192.168.0.81) with a Raspberry Pi NFS server (static IP=192.168.0.69) and I am trying to mount a remote partition on the Pi to use as a NAS.
When I set it up earlier, it worked fine without issues. Then I rebooted my client laptop (not the Pi), and since then I have not been able to mount the drive. Since then I have tried rebooting both multiple times but to no avail.

laptop:

laptop $ ping 192.168.0.69
PING 192.168.0.69 (192.168.0.69) 56(84) bytes of data.
64 bytes from 192.168.0.69: icmp_seq=1 ttl=64 time=23.7 ms

laptop $ showmount -e 192.168.0.69
Export list for 192.168.0.69:
/srv/nfs 192.168.0.81

laptop $ sudo mount 196.168.0.69:/srv/nfs /mnt/nas -v
mount.nfs: timeout set for Sun Apr 19 20:48:19 2026
mount.nfs: trying text-based options 'vers=4.2,addr=196.168.0.69,clientaddr=192.168.0.81'
mount.nfs: mount(2): Connection timed out
mount.nfs: Connection timed out for 196.168.0.69:/srv/nfs on /mnt/nas

I have the following /etc/exports file, but otherwise stock config:

/srv/nfs 192.168.0.81(rw,sync,no_root_squash)

The server shows as active with exit code 0:

raspberrypi $ sudo systemctl status nfs-server.service
● nfs-server.service - NFS server and services
     Loaded: loaded (/usr/lib/systemd/system/nfs-server.service; enabled; preset: enabled)
    Drop-In: /run/systemd/generator/nfs-server.service.d
             └─order-with-mounts.conf
     Active: active (exited) since Sun 2026-04-19 20:54:32 BST; 2min 22s ago
 Invocation: 8f50ce87801f41b597f6ef7fba821116
       Docs: man:rpc.nfsd(8)
             man:exportfs(8)
    Process: 1182 ExecStartPre=/usr/sbin/exportfs -r (code=exited, status=0/SUCCESS)
    Process: 1184 ExecStart=/bin/sh -c /usr/sbin/nfsdctl autostart || /usr/sbin/rpc.nfsd (code=exited, status=0/SUCCESS)
   Main PID: 1184 (code=exited, status=0/SUCCESS)
        CPU: 45ms

Apr 19 20:54:32 danrasp systemd[1]: Starting nfs-server.service - NFS server and services...
Apr 19 20:54:32 danrasp sh[1185]: nfsdctl: lockd configuration failure
Apr 19 20:54:32 danrasp systemd[1]: Finished nfs-server.service - NFS server and services.

The required ports appear to be open on the server

raspberrypi $ rpcinfo -p
   program vers proto   port  service
    100000    4   tcp    111  portmapper
    100000    3   tcp    111  portmapper
    100000    2   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100000    3   udp    111  portmapper
    100000    2   udp    111  portmapper
    100024    1   udp  38627  status
    100024    1   tcp  54879  status
    100005    1   udp  39929  mountd
    100005    1   tcp  57453  mountd
    100005    2   udp  33987  mountd
    100005    2   tcp  55853  mountd
    100005    3   udp  48863  mountd
    100005    3   tcp  57089  mountd
    100003    3   tcp   2049  nfs
    100003    4   tcp   2049  nfs
    100227    3   tcp   2049  nfs_acl
    100003    3   udp   2049  nfs
    100227    3   udp   2049  nfs_acl
    100021    1   udp  36073  nlockmgr
    100021    3   udp  36073  nlockmgr
    100021    4   udp  36073  nlockmgr
    100021    1   tcp  37685  nlockmgr
    100021    3   tcp  37685  nlockmgr
    100021    4   tcp  37685  nlockmgr

Kernel modules are on the client and the client service is up

laptop $ lsmod | grep nfs
nfsv4                1351680  2
dns_resolver           16384  1 nfsv4
nfs                   716800  3 nfsv4
lockd                 192512  1 nfs
nfs_localio            40960  1 nfs
sunrpc                897024  11 nfs_localio,nfsv4,auth_rpcgss,lockd,rpcsec_gss_krb5,nfs
netfs                 626688  1 nfs

laptop $ $ systemctl status nfs-client.target
● nfs-client.target - NFS client services
     Loaded: loaded (/usr/lib/systemd/system/nfs-client.target; enabled; preset: disabled)
     Active: active since Sun 2026-04-19 21:00:16 BST; 8min ago
 Invocation: e6cca001366a477ebad33d4c99dd234b

Apr 19 21:00:16 DAN-LNX systemd[1]: Reached target NFS client services.

I'm a bit stumped at what the problem could be. Any advice on debugging would be greatly appreciated!

-thc

Member

Registered: 2017-03-15

Posts: 1,122

Re: Mount command hangs when trying to mount an NFS paritition

First make sure that the NFS server is actually listening on your server:

ss -l -t -n -p | grep 2049

because the "showmount"  command only contacts the RPC server (via port 111).