Hello all .. http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif Sorry , i asked about almost the same point days ago ... but beleive me .. I waisted a lot of time ... and still .. i cant make it work .. i want to mount a folder from my linux PC to the uClinux.. using NFS .. i followed what was said to me .. a strange error came up .. maybe i did not include a certain package while doing the menuconfig the error is: <div class='quotetop'>QUOTE </div> --- Quote Start --- RPC: unable to receive: errno = No route to host[/b] --- Quote End --- also when i do telnet to my PC <div class='quotetop'>QUOTE </div> --- Quote Start --- telnet: unable to connect to remote host: No route to host[/b] --- Quote End --- but i can ping the server from client and vice versa ! i checked the NFS server ..it seems running.. "rpcinfo -p" tells me that many nfs ports are opened .. i have versions 2,3 and 4 running .. but still cant mount ! and i cant understand !!! http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/mad.gif pls help .. Thanks a lot.. Yours, Tarek http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

sorry for late. I had a vacation last week. did you open the firewall on your server? or try to disable firewall totally. service iptables stop

--- Quote Start --- originally posted by hippo@Jul 10 2006, 07:15 AM sorry for late. i had a vacation last week. did you open the firewall on your server? or try to disable firewall totally. service iptables stop <div align='right'><{post_snapback}> (index.php?act=findpost&pid=16732)</div> --- Quote End --- ok.. i stopped the firewall .. double and even tripple checked that the service is running correctly on the server .. i tried with another PC linux .. from the other pc i typed : showmount -e <myIP> the shared folder appeared after a while .. (about 5 seconds at first..faster next) but when i tried to mount .. it said" RPC timeout" after a loong while .. i tried to mount from the uCinux .. it said the following: <div class='quotetop'>QUOTE </div> --- Quote Start --- /> mount 192.168.0.122:/home/tarek/Desktop /mnt mount: RPC: Timed out mount: nfsmount failed: Bad file descriptor mount: Mounting blaBla on Blabla failed: Invalid Argument[/b] --- Quote End --- Did you see such thing before..? .. sorry ..i am still a starter .. I had spent about 4 hours till now just trying .. no results.. http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/blink.gif thanks for helping .. and waiting for the next clue from you .. http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif Bye

i also tried the following .. /> mount -t nfs 192.168.0.122:/home/tarek/Desktop /mnt portmap: server localhost not responding, timed out RPC: failed to contact portmap (errno -5). portmap: server localhost not responding, timed out RPC: failed to contact portmap (errno -5). lockd_up: makesock failed, error=-5 portmap: server localhost not responding, timed out RPC: failed to contact portmap (errno -5). /> also tried the " -o nfsvers=2 " .. the same http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/mad.gif

--- Quote Start --- originally posted by tarekeldeeb+jul 10 2006, 01:57 pm--><div class='quotetop'>quote (tarekeldeeb @ jul 10 2006, 01:57 pm)</div> --- quote start --- <!--quotebegin-hippo@Jul 10 2006, 07:15 AM sorry for late. i had a vacation last week. did you open the firewall on your server? or try to disable firewall totally. service iptables stop <div align='right'><{post_snapback}> (index.php?act=findpost&pid=16732)</div> --- Quote End --- ok.. i stopped the firewall .. double and even tripple checked that the service is running correctly on the server .. i tried with another PC linux .. from the other pc i typed : showmount -e <myIP> the shared folder appeared after a while .. (about 5 seconds at first..faster next) but when i tried to mount .. it said" RPC timeout" after a loong while .. i tried to mount from the uCinux .. it said the following: <div class='quotetop'>QUOTE </div> --- Quote Start --- /> mount 192.168.0.122:/home/tarek/Desktop /mnt mount: RPC: Timed out mount: nfsmount failed: Bad file descriptor mount: Mounting blaBla on Blabla failed: Invalid Argument[/b] --- Quote End --- Did you see such thing before..? .. sorry ..i am still a starter .. I had spent about 4 hours till now just trying .. no results.. http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/blink.gif thanks for helping .. and waiting for the next clue from you .. http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif Bye <div align='right'><{post_snapback}> (index.php?act=findpost&pid=16742)</div> [/b] --- Quote End --- You need the -o nolock in mount flags. mount -t nfs -n -o nolock,rsize=1024,wsize=1024 192.168.1.2:/home/nios2 /mnt/nfs ( eg, server ip 192.168.1.2) Look in the wiki carefully. But why you failed to mount nfs from another linux pc?

--- Quote Start --- originally posted by hippo@Jul 10 2006, 08:08 AM you need the -o nolock in mount flags. mount -t nfs -n -o nolock,rsize=1024,wsize=1024 192.168.1.2:/home/nios2 /mnt/nfs ( eg, server ip 192.168.1.2) look in the wiki carefully. but why you failed to mount nfs from another linux pc? <div align='right'><{post_snapback}> (index.php?act=findpost&pid=16745)</div> --- Quote End --- i did ... the same error <div class='quotetop'>QUOTE </div> --- Quote Start --- mount: RPC: Timed out mount: nfsmount failed: Bad file descriptor mount: Mounting blaBla on Blabla failed: Invalid Argument[/b] --- Quote End --- i began thinking that the server itself has a problem .. i have fedora core5 .. so i tried the server on a different pc .. having fedora core 4 .. the same results :S when i type " rpcinfo -p " .. i can see many prgz.. portmapper,status,nfs,nlockmgrrquotad,mountd .. all of them have both TCP and UDP versions .. with more than one version.. i am very confused http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/sad.gif thanks for your reply.. and still waiting ... for the next clue . http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif

Altera_Forum

Honored Contributor

20 years ago

Unable to mount using NFS

Hello all .. http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif

Sorry , i asked about almost the same point days ago ... but beleive me .. I waisted a lot of time ... and still .. i cant make it work ..

i want to mount a folder from my linux PC to the uClinux.. using NFS ..

i followed what was said to me ..

a strange error came up .. maybe i did not include a certain package while doing the menuconfig

the error is:

<div class='quotetop'>QUOTE </div>

--- Quote Start ---

RPC: unable to receive: errno = No route to host[/b]

--- Quote End ---

also when i do telnet to my PC

<div class='quotetop'>QUOTE </div>

--- Quote Start ---

telnet: unable to connect to remote host: No route to host[/b]

--- Quote End ---

but i can ping the server from client and vice versa !

i checked the NFS server ..it seems running.. "rpcinfo -p" tells me that many nfs ports are opened .. i have versions 2,3 and 4 running ..

but still cant mount !

and i cant understand !!! http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/mad.gif

pls help ..

Thanks a lot..

Yours,

Tarek http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

14 Replies

Altera_Forum
Honored Contributor
20 years ago
Tarek,

Please take a look at your Linux box's message log (/var/log/messages or /var/log/nfs, or something like that).

For successful unmounting/mounting of NFS shares, you should see something like the following:

Jul 10 14:30:06 <your server> mountd: authenticated unmount request from <your client>:820 for <your_share> (<your_share>) Jul 10 14:30:32 <your server> mountd: authenticated mount request from <your client>:915 for <your_share> (<your_share>)

NOTE: <your_server>,<your client>, and <your_share> are specific to your system's configuration.

This is the way I always debug NFS share permissions issues....and it hasn't failed me yet.

Also, as hippo suggests, please ensure that your /etc/exports file looks something like this, with, perhaps, multiple shares defined.

<your share> <your client>(rw,sync,no_root_squash)

Cheers,

- slacker
Altera_Forum
Honored Contributor
20 years ago
I tested again on 2c35 dev board and FC5, but it can read/write nfs mount without problem.
http://nioswiki.jot.com/wikihome/operating...zimage_std_2c35 (http://nioswiki.jot.com/wikihome/operatingsystems/%c2%b5clinux/tryoutuclinux/zimage_std_2c35)

it is the default nios2 kernel config as in my post of uClinux-dist-test.
enabled smc91111 , nfs, and nfs v3.
enabled mount in busybox.
Altera_Forum
Honored Contributor
20 years ago
--- Quote Start ---
originally posted by slacker@Jul 10 2006, 11:46 PM
tarek,

please take a look at your linux box's message log (/var/log/messages or /var/log/nfs, or something like that).

for successful unmounting/mounting of nfs shares, you should see something like the following:

jul 10 14:30:06 <your server> mountd: authenticated unmount request from <your client>:820 for <your_share> (<your_share>) jul 10 14:30:32 <your server> mountd: authenticated mount request from <your client>:915 for <your_share> (<your_share>)

note: <your_server>,<your client>, and <your_share> are specific to your system's configuration.

this is the way i always debug nfs share permissions issues....and it hasn't failed me yet.

also, as hippo suggests, please ensure that your /etc/exports file looks something like this, with, perhaps, multiple shares defined.

<your share> <your client>(rw,sync,no_root_squash)

cheers,

- slacker
<div align='right'><{post_snapback}> (index.php?act=findpost&pid=16777)</div>
--- Quote End ---

yes i find such messages in var/log/messages but with different port numbers.
and i also double checked the export file

no more ideas?
Altera_Forum
Honored Contributor
20 years ago
<<<< FINALLY DONE >>>>

Hippo i tried your zImage .. same bad results.. read only..

so i am sure it is a server issue .. not client problem ..

i tried reading some forums.. and guessed it could be the SElinux ..

and it was http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif

I disabled it .. every thing went fine http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

Hippo and Slacker .. thanks a lot for your warm support http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif

Thanks everyone

Bye http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

Forum Discussion

Unable to mount using NFS

14 Replies

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