[SOLVED]nfs server on rtd1295

[davicom88]

as previously said privately, in my opinion you did a great job: but I can't get NFS server working, any help should be really appreciated:

Ip of my nfs server "X10 rtd1295" is 192.168.1.125
i set my export on Luci:
/mnt/sda1 192.168.1.28/24(rw,sync,root_squash,all_squash,insecure,no_subtree_check)

then I try to mount it from my linux host 192.168.1.28

sudo mount -t nfs 192.168.1.125:/mnt/sda1 /home/user/Desktop/NFS_shares/x10
[sudo] password for user: 
**mount.nfs: requested NFS version or transport protocol is not supported**

As you suggested me, I put exportfs -a on cli on openwrt but I get nothing return

[davicom88]

update:
if I did command:
sudo mount -o rw,vers=2 192.168.1.125:/mnt/sda1 /home/user/Desktop/NFS_shares/x10 -vv
returns

mount.nfs: timeout set for Wed Sep  2 13:12:20 2020
mount.nfs: trying text-based options 'vers=2,addr=192.168.1.125'
mount.nfs: prog 100003, trying vers=2, prot=6
mount.nfs: portmap query retrying: RPC: Program not registered
mount.nfs: prog 100003, trying vers=2, prot=17
mount.nfs: portmap query failed: RPC: Program not registered
mount.nfs: requested NFS version or transport protocol is not supported

It's like nfs isn't start correctly, in fact from "netstat -a" I can see a process running only on port tcp 32778

[jjm2473]

Can you check is portmap running?

PS: I recommend you to install my new firmware

[davicom88]

yes I have just your last firmware

[davicom88]

portmap isn't install by default, I tried to install it but without any results, I re-try to install it. Could you suggest me if I need to configure something manually after installing portmap?

[jjm2473]

Oh, which version are you using?

We don't need portmap in new firmware.

I thought you are using old firmware, because this issue is in my old project.

[jjm2473]

portmap was replaced by rpcbind in new firmware

[jjm2473]

root@Z9S:~# netstat -anp|grep 111
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN      347/rpcbind
tcp        0      0 :::111                  :::*                    LISTEN      347/rpcbind
udp        0      0 0.0.0.0:111             0.0.0.0:*                           347/rpcbind
udp        0      0 :::111                  :::*                                347/rpcbind
unix  2      [ ACC ]     SEQPACKET  LISTENING      11192 -                   /dev/socket/lmkd
unix  2      [ ]         DGRAM                     11130 -                   
unix  2      [ ]         DGRAM                     11180 -                   

[davicom88]

Ah ok, but the problem remain:

root@OpenWrt:~# showmount -e localhost Export list for localhost: /mnt/sda1 192.168.1.55/24
but

root@OpenWrt:~# showmount -e
clnt_create: RPC: Unknown hos

root@OpenWrt:~# netstat -anp|grep 111
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN      324/rpcbind
tcp        0      0 192.168.1.125:445       192.168.1.55:59526      ESTABLISHED 2368/smbd
tcp        0    144 192.168.1.125:22        192.168.1.55:58968      ESTABLISHED 2276/dropbear
tcp        0      0 :::111                  :::*                    LISTEN      324/rpcbind
tcp        1      0 ::ffff:192.168.1.125:36052 ::ffff:103.14.35.46:80  CLOSE_WAIT  -
tcp        0      0 ::ffff:192.168.1.125:54395 ::ffff:172.253.122.188:5228 ESTABLISHED -
tcp        1      0 ::ffff:192.168.1.125:43791 ::ffff:103.14.35.46:80  CLOSE_WAIT  -
udp        0      0 0.0.0.0:111             0.0.0.0:*                           324/rpcbind
udp        0      0 192.168.1.125:137       0.0.0.0:*                           1291/nmbd
udp        0      0 192.168.1.125:138       0.0.0.0:*                           1291/nmbd
udp        0      0 192.168.1.125:50405     0.0.0.0:*                           541/minidlna
udp        0      0 :::111                  :::*                                324/rpcbind

[davicom88]

Wich command do you use to connect to Z9S on linux client?

[jjm2473]

I never test NFS in linux client, but Mac OS client works fine.

I checked these commands on my Z9S:

root@Z9S:~# showmount -e localhost
Export list for localhost:
/mnt/sataa2 *
root@Z9S:~# showmount -e 127.0.0.1
Export list for 127.0.0.1:
/mnt/sataa2 *
root@Z9S:~# showmount -e 
Export list for Z9S:
/mnt/sataa2 *

[davicom88]

following the guide on official openwrt site
https://openwrt.org/docs/guide-user/services/nas/nfs.server

I obtain error when I start nfs daemon, could this help you to check what my problem is?

root@OpenWrt:~# /etc/init.d/rpcbind disable
root@OpenWrt:~# /etc/init.d/nfsd disable
root@OpenWrt:~# /etc/init.d/rpcbind enable
root@OpenWrt:~# /etc/init.d/nfsd enable
root@OpenWrt:~# /etc/init.d/rpcbind start
root@OpenWrt:~# /etc/init.d/nfsd start
mount: /proc/fs/nfsd: unknown filesystem type 'nfsd'.
rpc.nfsd: Unable to access /proc/fs/nfsd errno 2 (No such file or directory).
Please try, as root, 'mount -t nfsd nfsd /proc/fs/nfsd' and then restart rpc.nfsd to correct the problem

[davicom88]

From client linux:

user@server:~$ showmount -e 192.168.1.125
Export list for 192.168.1.125:
/mnt/sda1 192.168.1.55/24
user@server:~$ rpcinfo -p 192.168.1.125
   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
    100005    1   udp  32780  mountd
    100005    1   tcp  32780  mountd
    100005    2   udp  32780  mountd
    100005    2   tcp  32780  mountd
    100005    3   udp  32780  mountd
    100005    3   tcp  32780  mountd
    100024    1   udp  32778  status
    100024    1   tcp  32778  status

[davicom88]

I didnt' mean you have to help me. What you have done it's yet amazing. Sorry for my little english anyway... :)

[davicom88]

In meantime I also tried to mount different path: /tmp with same result
And also to mount from another Linux client obtaining: permission denied

[jjm2473]

can you run lsmod in Openwrt?

[davicom88]

user@OpenWrt:/tmp# lsmod
ahci                   26415  0 
async_memcpy            1961  1 raid456
async_pq                5947  1 raid456
async_raid6_recov       2228  1 raid456
async_tx                2849  5 raid456,async_raid6_recov,async_pq,async_xor,async_memcpy
async_xor               4407  2 raid456,async_pq
crc_ccitt               1297  1 ppp_async
dm_log                  9874  2 dm_mirror,dm_region_hash
dm_mirror              14510  0 
dm_region_hash          7997  1 dm_mirror
gre                     4441  2 pptp,ip_gre
ip_gre                  8982  0 
ip_tunnel              14210  1 ip_gre
ip6_udp_tunnel          1725  1 l2tp_core
jnl                    35828  1 ufsd
l2tp_core              23429  2 l2tp_ppp,l2tp_netlink
l2tp_netlink            8561  1 l2tp_ppp
l2tp_ppp               19267  0 
linear                  4035  0 
mali_kbase            324526 17 
md_mod                125231  6 multipath,raid456,raid10,raid1,raid0,linear
multipath               6906  0 
ppp_async               8039  0 
pppoe                  12428  0 
pptp                   15154  0 
r8168                 472958  0 
raid0                  10990  0 
raid1                  28787  0 
raid10                 38600  0 
raid456                86763  0 
rtk_btusb              50013  0 
udp_tunnel              1842  1 l2tp_core
ufsd                  698755  0 

[davicom88]

could be a firewall issue?

[jjm2473]

In Z9S:

root@Z9S:~# lsmod
8822bs               3366638  0 
ahci                   27791  0 
async_memcpy            1961  1 raid456
async_pq                5931  1 raid456
async_raid6_recov       2236  1 raid456
async_tx                2841  5 raid456,async_raid6_recov,async_pq,async_xor,async_memcpy
async_xor               4439  2 raid456,async_pq
crc_ccitt               1289  1 ppp_async
cryptodev              41014  0 
dm_log                  9866  2 dm_mirror,dm_region_hash
dm_mirror              14502  0 
dm_region_hash          7989  1 dm_mirror
gre                     4433  2 pptp,ip_gre
ip_gre                  8982  0 
ip_tunnel              14194  1 ip_gre
ip6_udp_tunnel          1709  1 l2tp_core
jnl                    35868  1 ufsd
l2tp_core              23477  2 l2tp_ppp,l2tp_netlink
l2tp_netlink            8601  1 l2tp_ppp
l2tp_ppp               19203  0 
linear                  4027  0 
mali_kbase            347132 25 
md_mod                125319  6 multipath,raid456,raid10,raid1,raid0,linear
multipath               6930  0 
nfsd                   99743 11 
ppp_async               7983  0 
pppoe                  12420  0 
pptp                   15202  0 
r8168                 474146  0 
raid0                  10982  0 
raid1                  28787  0 
raid10                 38648  0 
raid456                87082  0 
raid6_pq               88197  3 raid456,async_raid6_recov,async_pq
rtk_btusb              51331  0 
rtk_sdmmc              34379  0 
udp_tunnel              1842  1 l2tp_core
ufsd                  698683  1 
xor                     7236  1 async_xor

It has a module named nfsd.

run modprobe /lib/modules/4.1.35-04005-g6c2818e-dirty/nfsd.ko in openwrt and see what happen

[davicom88]

root@OpenWrt:~# modprobe /lib/modules/4.1.35-04005-g6c2818e-dirty/nfsd.ko
failed to find a module named nfsd

so it's a damned missing module

[davicom88]

what can I do? or maybe is there nothing I can do :) :) ?

[jjm2473]

try insmod /lib/modules/4.1.35-04005-g6c2818e-dirty/nfsd.ko

[davicom88]

root@OpenWrt:~# insmod /lib/modules/4.1.35-04005-g6c2818e-dirty/nfsd.ko
Failed to find nfsd. Maybe it is a built in module ?

[jjm2473]

Is /lib/modules/4.1.35-04005-g6c2818e-dirty exists?
run ls -l /lib/modules/

[davicom88]

root@OpenWrt:~# ls -l /lib/modules/
drwxr-xr-x    2 root     root           921 Aug 29 04:14 4.1.17-g9100299-dirty

[davicom88]

root@OpenWrt:/lib/modules/4.1.17-g9100299-dirty# ls
ahci.ko                   crc-ccitt.ko              ip_gre.ko                 l2tp_ppp.ko               modules.builtin.bin       modules.symbols.bin       raid0.ko                  ufsd.ko
async_memcpy.ko           dm-log.ko                 ip_tunnel.ko              linear.ko                 modules.dep               multipath.ko              raid1.ko                  ump.ko
async_pq.ko               dm-mirror.ko              jnl.ko                    mali_kbase.ko             modules.dep.bin           ppp_async.ko              raid10.ko                 ump_kernel_import_ion.ko
async_raid6_recov.ko      dm-region-hash.ko         kds.ko                    md-mod.ko                 modules.devname           pppoe.ko                  raid456.ko
async_tx.ko               gre.ko                    l2tp_core.ko              modules.alias             modules.softdep           pptp.ko                   rtk_btusb.ko
async_xor.ko              ip6_udp_tunnel.ko         l2tp_netlink.ko           modules.alias.bin         modules.symbols           r8168.ko                  udp_tunnel.ko

[jjm2473]

Is your device Z10? What android version it running?

[davicom88]

no mine is x10 rtd1295 android 6

[jjm2473]

oh, maybe x10 doesn't have nfsd. try to run ls -l /proc/fs/ to see if it has nfsd

[davicom88]

root@OpenWrt:~# ls -l /proc/fs
dr-xr-xr-x    2 root     root             0 Sep  2 15:52 cifs
dr-xr-xr-x    7 root     root             0 Sep  2 15:52 ext4
dr-xr-xr-x    2 root     root             0 Sep  2 15:52 fscache
dr-xr-xr-x    7 root     root             0 Sep  2 15:52 jbd2
dr-xr-xr-x    2 root     root             0 Sep  2 15:52 lockd
dr-xr-xr-x    2 root     root             0 Sep  2 15:52 nfsd
dr-xr-xr-x    2 root     root             0 Sep  2 15:52 nfsfs
dr-xr-xr-x    2 root     root             0 Sep  2 15:52 ufsd
dr-xr-xr-x    2 root     root             0 Sep  2 15:52 ufsd_jnl

nfsd there's

[jjm2473]

That it should support nfsd.

[davicom88]

ok I did modify you recommended, do I have reboot first to remount on linux?

[jjm2473]

don't need reboot.

just umount and mount

[davicom88]

same problem, it seems that unfs3 just ignores export file and it's configuration

davicom@server:~/Desktop/NFS_shares/x10$ sudo mkdir try
[sudo] password for davicom: 
mkdir: cannot create directory ‘try’: Read-only file system

http://www.imagestime.com/imageshow.php/1189100_tojim1.jpg.html

[davicom88]

maybe I can try to create on linux a group 1023 media_rw and add to it root user, it should be safe?

[jjm2473]

can you check if unfsd running as root now?

[davicom88]

root@OpenWrt:~# id
uid=0(root) gid=0(root) groups=1014(aid_dhcp),1015(aid_sdcard_rw),1020(aid_mdnsr),1023(media_rw),1028(aid_sdcard_r),2000(aid_shell),2001,3001,3002,3003(aid_inet),3004(aid_net_raw),3005(aid_net_admin),3006(aid_net_bw_stats),3007,3009(aid_readproc)
root@OpenWrt:~# ps |grep unfsd
  482 1000      6136 S    /usr/sbin/unfsd -d
 2211 root      1204 S    grep unfsd

[davicom88]

maybe we have to create user 1000 on openwrt?

[davicom88]

I really don't understand, I'll post you a correct configuration of another nfs share on another server...

[jjm2473]

I don't think it will work.

I saw you image, you have wrong usage with umount.

umount just take directory as parameter, so just run umount /home/davicom/Desktop/NFS_shares/x10

[jjm2473]

after mount, run mount | grep nfs to check if it was mounted as rw

[davicom88]

davicom@server:~$ mount | grep nfs
nfsd on /proc/fs/nfsd type nfsd (rw,relatime)
192.168.1.22:/media/hdd on /home/davicom/Desktop/NFS_shares/latest type nfs (rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.1.22,mountvers=3,mountport=36050,mountproto=udp,local_lock=none,addr=192.168.1.22)
192.168.1.111:/mnt/sda1 on /home/davicom/Desktop/NFS_shares/x10 type nfs (rw,relatime,vers=3,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.1.111,mountvers=3,mountport=2049,mountproto=udp,local_lock=none,addr=192.168.1.111)

here is working configuration of nfs server

from linux client

davicom@server:~$ sudo mount -t nfs 192.168.1.22:/media/hdd /home/davicom/Desktop/NFS_shares/latest
[sudo] password for davicom: 
davicom@server:~$ ls -l /media/hdd /home/davicom/Desktop/NFS_shares/
ls: cannot access '/media/hdd': No such file or directory
/home/davicom/Desktop/NFS_shares/:
total 12
-rw-r--r--  1 root root   86 May 15 23:12 montaggi_NFS
drwxr-xr-x 13 root root 4096 Sep  4 09:59 latest
drwxrwxrwx  7 root 1023 4096 Sep  4 21:16 x10
davicom@server:~$ ls -l /media/hdd /home/davicom/Desktop/NFS_shares/latest
ls: cannot access '/media/hdd': No such file or directory
/home/davicom/Desktop/NFS_shares/latest:
total 60400
drwxr-xr-x 12 root root     4096 Aug 30 21:31 film
drwx------  2 root root    16384 May 20 16:22 lost+found
drwxr-xr-x  3 root root     4096 Jul 13 15:20 movie
drwxr-xr-x 43 root root     4096 Sep  1 09:37 serietv

from latest server

root@latest:~# vi /ect/exports
/media/hdd/ 192.168.1.55/255.255.255.0(rw,no_root_squash,async,no_subtree_check)
root@latest:~# ls -l /mnt
lrwxrwxrwx    1 root     root             5 Apr 18 20:11 /mnt -> media
root@latest:~# ls -l /mnt/hdd
drwxr-xr-x    2 root     root          4096 Aug  9 02:07 backup
drwxr-xr-x    4 root     root          4096 Aug 23 11:42 documentari
drwxr-xr-x   12 root     root          4096 Aug 30 21:31 film
drwx------    2 root     root         16384 May 20 16:22 lost+found
drwxr-xr-x    3 root     root          4096 Jul 13 15:20 movie
drwxr-xr-x   43 root     root          4096 Sep  1 09:37 serietv
drwxr-xr-x   14 root     root          4096 Aug 27 19:47 temp
root@latest:~# ls -l /media
drwxr-xr-x    2 root     root             0 Aug 30 09:57 autofs
drwxr-xr-x   13 root     root          4096 Sep  4 09:59 hdd
drwxr-xr-x    2 root     root            40 Sep  2 14:44 try

[davicom88]

o.t. transfer copy folder 42gb speed --> 79.6444MB/s

[davicom88]

When I restart openwrt and nfs is not mounted in client it's so:

root@OpenWrt:~# ps |grep unfsd
  487 root      6136 S    /usr/sbin/unfsd -d
 2198 root      1204 S    grep unfsd

[davicom88]

I enabled unfs -s (single mode) now the two processes are under root both

root@OpenWrt:~# ps |grep unfsd
 2225 root      6064 S    unfsd -s
 2252 root      1204 S    grep unfsd

But from client problem remains

[davicom88]

SOLVED! the credit is all yours and the great job you did with this build. You have made x9s / X10 totally versatile devices! I warmly invite you to propose your work to zidoo! And let me know how I can repay! thanks for all your support and effort jim

[jjm2473]

should be notice that, single user mode will always use root to access files

[davicom88]

hi jim, no it's working default mode

root@OpenWrt:~# ps |grep unfsd
 2301 1000      6144 S    /usr/sbin/unfsd -d
 2434 root      1204 S    grep unfsd

[jjm2473]

did you change command in /etc/init.d/nfsd? It should be unfsd -d -s, without -d, procd will not handle unfsd process.

[davicom88]

no i didn't, i I try a reboot to see if it still works

[davicom88]

After reboot it's still working

Unmounted:

root@OpenWrt:~# ps |grep unfsd
  487 root      6136 S    /usr/sbin/unfsd -d
 2208 root      1204 S    grep unfsd

Mounted:

root@OpenWrt:~# ps |grep unfsd
  487 1000      6136 S    /usr/sbin/unfsd -d
 2210 root      1204 S    grep unfsd

[jjm2473]

can write file on client side?

[davicom88]

yes, now I'm setting correct permission to 755 and see if is it works: it should be accept write only by opening the mount as superuser, sorry again for my bad english

[jjm2473]

so it's working without single user mode?

[davicom88]

yes it's working flawlessy

[davicom88]

yes, before when I mounted on, with single user mode, the first process remained owned by root, now is uid 1000

not mounted
root@OpenWrt:~# ps |grep unfsd
  482 root      6132 S    /usr/sbin/unfsd -d
 2230 root      1204 S    grep unfsd
mounted
root@OpenWrt:~# ps |grep unfsd
  482 1000      6136 S    /usr/sbin/unfsd -d
 2240 root      1204 S    grep unfsd

[jjm2473]

maybe you can post NFS option and mount command here, let others know how to do that.

[davicom88]

yes for sure

[davicom88]

Before mounting Luci NFS export configuration:

/mnt/sda1/ 192.168.1.0/24(your desired network or single IP) rw,no_root_squash,async,insceure,no_subtree_check

Before mounting, server-side/openwrt has to show:

root@OpenWrt:~# ps |grep unfsd
  482 root      6132 S    /usr/sbin/unfsd -d
 2230 root      1204 S    grep unfsd

Before mounting, client-side has to show:

user@server:~$ showmount -e OpenWrt_IP
Export list for OpenWrt_IP:
/mnt/sda1/ 192.168.1.0/24 (your desired network or single IP)

Mounting:
sudo mount -t nfs OpenWrt_IP:/mnt/sda1 /mnt/your_preferred_folder

After mounting, server-side/OpenWrt has to show:

root@OpenWrt:~# ps |grep unfsd
  482 1000      6136 S    /usr/sbin/unfsd -d      uuid=1000 could be different
 2240 root      1204 S    grep unfsd

Permissions:

basing myself on a normal nfs share already working I set on openwrt WITH UNMOUNTED THE NFS SHARE ON CLIENT:

root@OpenWrt:~# chmod 777 /mnt
root@OpenWrt:~# chmod -R 755 /mnt/sda1

in this way you could mount normally NFS share but you couldn't write as if you aren't in superuser mode

forgive poor English in advance

all credits goes to @jjm2473 jim2473