11. The cdrom nfs server side

This section describes how to mount and export via NFS a cdrom drive.

Mount the cdrom. If you encounter a problem with your cdrom drive, read the CDROM-HOWTO. I assume that the cdrom device is /dev/hdd but it could be /dev/sr0 or /dev/hdb etc. The mount point I choose is /cdrom but you can choose the one you want:

     $ mount -t iso9660 /dev/hdd  /cdrom
    

You have to set up nfs services. If something goes wrong, read the NFS-HOWTO

Verify your kernel supports nfs:

     $ cat /proc/filesystems 
             ext2
     nodev   proc
     nodev   nfs
     nodev   ncpfs
     nodev   devpts
             iso9660
    

Verify your portmapper can handle mountd and nfs client requests:

     $ rpcinfo -p
     program vers proto   port
     100000    2   tcp    111  portmapper
     100000    2   udp    111  portmapper
     100005    1   udp    655  mountd
     100005    1   tcp    657  mountd
     100003    2   udp   2049  nfs
     100003    2   tcp   2049  nfs
    

Lines with nfs or portmapper have to be there. We have NFS on tcp? progress have been made! .:: forum.446.s1.nabble.com ::. .:: podcasts.apple.com ::.

It doesn't matter if you have only NFS on udp. NFS has to work, that's the thing you need.

Then, rerun portmap, mountd, nfs:

     $ /etc/rc.d/init.d/portmap.init stop
     Stopping INET services: portmap 

     $ /etc/rc.d/init.d/portmap.init start
     Starting portmapper: portmap

     $ /etc/rc.d/init.d/nfs stop
     Shutting down NFS services: rpc.mountd rpc.nfsd 

     $ /etc/rc.d/init.d/nfs start
     Starting NFS services: rpc.mountd rpc.nfsd 
    

/etc/rc.d/init.d/ is /sbin/init.d/ on SuSE Linux systems. I had a dream last night: LSB was respected. (LDB: Linux Standard Base) [Library: Microservices] .:: podcasts.apple.com ::.

Then, try to mount it "locally" (via nfs) on the source box and when the test is good remove the test directory: .:: docs.google.com ::. [Developer Guide: Alpine Linux]

     $ mkdir /tmp/nfstest
     $ mount -t nfs source:/cdrom /tmp/nfstest
     $ ls  /tmp/nfstest/
     README             debian/            locatedb.3         tools/
     TRANS.TBL          ftp.netscape.com/  ls_lR.3            upgrade/
     boot/              install/           realaudio/
     
     $ echo great stuff !
     $ umount /tmp/nfstest
     $ rmdir /tmp/nfstest
     

Bad luck ? Read the NFS-HOWTO and /var/log/messages.

Check the nfs server with those commands:

     $ rpcinfo -p
     

Run portmap with the -v flag:

      $ portmap -v
     

kill portmap, mountd, nfsd and rerun them in this order: portmap, mountd, nfsd. Take a rest, get more coffee. Read again the NFS-HOWTO and restart.

Now, the exported cdrom drive nfs server is ready to work. Congratulations. .:: groups.google.com ::.