andrewb
Group: Members
Posts: 316
Joined: July 2005 |
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Posted: June 17 2008,07:39 |
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I have confirmed that it is the tmpfs filesystem (i.e. /ramdisk) that nfs won't export/mount. Also unionfs won't export/mount (I created two directories on a hard-drive & made them into a union in a 3rd directory on the hard drive, exported it & then got the 'permission denied' error message). This really needs to be clearly documented, particularly for newbies - it would have taken a lot of trial & error to sort this out had I not had the help from curga & chaostic.
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To summarise - how to get nfs working on dsl with the least hassle NOT SECURE! (read the nfs-howto to set secure options):
nfs won't work with tmpfs - this is any directory/file found listed in the /ramdisk directory for dsl
nfs won't work with unionfs - any directory listed by the listu command
(note: there are some exceptions to the above sweeping statements - see at the bottom of this post)
On the server:
load nfs-kernel-server.dsl extension
as root (either root terminal, emelfm as superuser or sudo in user terminal) do the following:
list directories to be exported in /etc/exportfs e.g. to export /cdrom put the line:
in /etc/exports
delete /etc/hosts.deny & hosts.allow
put the client hostname & ip into /etc/hosts
start the nfs services:
| Quote | /etc/init.d/nfs-common start
/etc/init.d/nfs-kernel-server start |
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On the client as root (i.e. either in a root terminal or sudo in a user terminal):
| Quote | /etc/init.d/nfs-common start
mount <servername>:/export /dir |
where 'export' is the name of the exported directory on the server & 'dir' is the name of a directory on the client.
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If the exported directories on the server need to be changed: edit /etc/exports & then as root execute no need to stop/start the nfs processes
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notes about unions:
from trying various permutations I have found the following:
I created 3 directories on a hard drive u1, u2 & ux. u1 & u2 contained files. The directories were made into a union in ux. Whilts part of the union u1 & u2 can be exported & mounted by nfs, ux cannot - i.e. the union directory cannot be mounted, but the directories contained in the union can be (so long as they don't have some other restriction, such as being on a tmpfs filesystem like /ramdisk). If u1 & u2 are made into a union in u2 then u1 exports/mounts ok, but u2 does not export/mount.
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