Netboot Mailing List (by thread)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Sharing NFS file system (making it read only)

On Mon, 20 Mar 2000, Dvir Oren wrote:

> I want to share the same file system for all of my etherboot clients. 
>  I realize that some parts have to be different, and I intend to create 
> ramdisks for them, and mount them.
> However, if I make the NFS file system read only, I come across a 
> lot of problems:
> 1.  I need /dev to be rw.

Create a ramdisk at first and copy all needed rw stuff in it. I have
written a tutorial for setting up XTerminals and diskless X stations under
Suse Linux (german only :-( ) But have a look at the tarballs:

especially at the sbin/init.d/boot scripts. And the content which will
untarred into the ramdisk in var/ram/ramdisk.tgz

> 2.  I can't have /etc/passwd (and the related files) read only, if I 
> want to add users, etc.  I can't have them link to somewhere else, 
> passwd claims that it can't lock them.

Use NIS or such stuff.

> Has anybody succeeded in making the file system read only?  I'm 
> finding it extremely difficult.

Yes, it was a bit difficult because of the /dev stuff needed rw. But with
the new kernels you could try the /dev filesystem option, it should make
such things easier.

But in the end you will have a filesystem you can use for hundreds of
different clients ... We run a set of 80 diskless X stations and 130
XTerminals (relatively different PC hardware) out of a one filesystem for
the xterminals and one for the diskless X stations. And then you will see
the effort was worth it :-)


This Mail was sent to netboot mailing list by:
Dirk von Suchodoletz <>
To get help about this list, send a mail with 'help' as the only string in
it's body to If you have problems with this list,
send a mail to

For requests or suggestions regarding this mailing list archive please write to