Can't connect to NFS (RPC: Program not registered)

[daaaaang]

It seems like the fellow in this solved thread had the same issue, except a lot of the solutions there involve systemd, which does not apply to me (still using regular-ol' OpenRC).

The client computer is a macbook. From it, I get this error:

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$ showmount -e gan
showmount: Cannot retrieve info from host: gan: RPC: Program not registered

From the server:

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# exportfs -rav
exporting 192.168.0.0/24:/mnt/export/ngv
exporting 192.168.0.0/24:/mnt/export/ngp
exporting 192.168.0.0/24:/mnt/export/ram
exporting 192.168.0.0/24:/mnt/export

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# cat /etc/exports
/mnt/export     192.168.0.0/24(rw,fsid=root,insecure,no_subtree_check)
/mnt/export/ram 192.168.0.0/24(rw,nohide,insecure,no_subtree_check,fsid=58989459-faf9-4ca1-9c59-ebf55c5de6ea)
/mnt/export/ngp 192.168.0.0/24(rw,nohide,insecure,no_subtree_check)
/mnt/export/ngv 192.168.0.0/24(rw,nohide,insecure,no_subtree_check)

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# showmount -e localhost
clnt_create: RPC: Program not registered

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# rpcinfo -p localhost
   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  42381  status
    100024    1   tcp  59875  status
    100003    3   tcp   2049  nfs
    100003    4   tcp   2049  nfs
    100003    3   udp   2049  nfs
    100003    4   udp   2049  nfs
    100021    1   udp  44882  nlockmgr
    100021    3   udp  44882  nlockmgr
    100021    4   udp  44882  nlockmgr
    100021    1   tcp  34392  nlockmgr
    100021    3   tcp  34392  nlockmgr
    100021    4   tcp  34392  nlockmgr

I'm pretty sure it has everything it needs from the kernel:

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# zgrep -i nfs /proc/config.gz
CONFIG_NFS_FS=y
CONFIG_NFS_V2=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
# CONFIG_NFS_SWAP is not set
# CONFIG_NFS_V4_1 is not set
CONFIG_ROOT_NFS=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
CONFIG_NFSD_V4=y
# CONFIG_NFSD_V4_SECURITY_LABEL is not set
# CONFIG_NFSD_FAULT_INJECTION is not set
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y

Not sure if it's relevant, but when I stop rpcbind, I do get an error from start-stop-daemon (that bullet is red; the rest are green):

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# /etc/init.d/rpcbind stop
nfsmount         | * Unmounting NFS filesystems ...
nfs              | * Stopping NFS mountd ...                          [ ok ]
nfs              | * start-stop-daemon: no matching processes found   [ ok ]
nfs              | * Stopping NFS daemon ...                          [ ok ]
nfs              | * Unexporting NFS directories ...                  [ ok ]
rpc.statd        | * Stopping NFS statd ...
rpc.idmapd       | * Stopping idmapd ...                              [ ok ]
rpcbind          | * Stopping rpcbind ...                             [ ok ]

On the other hand, nfs always looks happy enough when it starts:

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# /etc/init.d/nfs start
rpcbind          | * Starting rpcbind ...                             [ ok ]
rpc.idmapd       | * Starting idmapd ...                              [ ok ]
rpc.statd        | * Starting NFS statd ...                           [ ok ]
nfs              | * Exporting NFS directories ...                    [ ok ]
nfs              | * Starting NFS mountd ...
nfs              |rpc.mountd version 1.3.0                            [ ok ]
nfs              | * Starting NFS daemon ...                          [ ok ]
nfs              | * Starting NFS smnotify ...                        [ ok ]

Lastly, if it's important, ngv and ngp bind to directories on a ZFS filesystem, and ram binds to a tmpfs mount.

Thanks!
Matt

[mike155]

Hi Matt,

what are th IP addresses of your Linux server and your Mac client?

First of all, you should try to find out why "showmount -e localhost" on your server doesn't work. Do "showmount -e" or "showmount -e <ip address of your server>" work on your server? Did you execute "exportfs -a"?

Michael

[szatox]

Do you have either /etc/init.d/nfsmount or /etc/init.d/nfs started on your client?