Re: NFS-mounted, read-only /dev unusable in 2.6

[Frank Steiner]

L A Walsh wrote:
> Maybe I'm missing something, but in the 2.6 series, wasn't the ability
> to mount subdirectories with different options, also, added?  Would
> it be possible to export and mount /dev with rw options to a specific
> client?

Yes, that's an option. But all this needs to be done in the init script,
since with nfsroot I only get /. So mounting /dev rw from the server is
similar to figuring out which client-specific /dev should be mounted.
But in this init process things can fail and I want to see those messages.
If I fail to mount the server /dev rw for any reason, I won't see the
error message :-(

> Or, more radical, if the roots of the clients end up being mounted RW
> eventually anyway, why not specify 'rw' in the lilo option?  It's not
> like it is a local filesystem that may be corrupt where one should
> boot from it RO until it is checked...

No, the real / is exported ro from the server and stays mounted ro on
the clients. Only the client specific /dev, /var and /etc are mounted
rw...

cu,
Frank

--
Dipl.-Inform. Frank Steiner   Web:  http://www.bio.ifi.lmu.de/~steiner/
Lehrstuhl f. Bioinformatik    Mail: http://www.bio.ifi.lmu.de/~steiner/m/
LMU, Amalienstr. 17           Phone: +49 89 2180-4049
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