NFS mount of filesystem RW *and* RO

[B. Chapman]

Hi,

I need to mount a filesystem to two different machines, and, I need to export to machine A as READ-ONLY, and export to machine B as READ-WRITE.

Is this possible? And if so, what is the syntax in /etc/exports?

Thanks in advance!
Ben Chapman
chapmanb@saic.com

[Mark Grant]

Haven't tried this but you would have, I guess, two entries in /etc/exports. One with the "rw" option and the "access" for machine A and the other with the "ro" option and the "access" for machine B. I imagine that would work.

[Pete Randall]

Ben,

I don't think you can do this on the export. From the man page:

"The ro and rw
options cannot be used on the same exports line."

You would have to control the mount options on the individual machines in order to accomplish this.


Pete

[KapilRaj]

export it as rw and mount as "ro" (first node) "rw" on the second node.

Kaps

[Mark Grant]

How about this from the man page for "exports"


rw=hostname[:hostname]...Export the directory read-mostly. Read-mostly means read-only to most machines, but read-write to those specified.

[G. Vrijhoeven]

Hi Ben,

Not sure it is possible, but you can try this:
#exports
/mountpoint -access=machineA,ro
/mountpoint -access=machineB,rw

exportfs -va

And see what gets exported

[Bharat Katkar]

Never tried that one but see if this works edit /etc/exports and add this entries:

/mountpoint ro=MACHINE_A, rw=MACHINE_B

Regards,

[iminus]

Can you try use two lines and one specify A as RO the next specify B as RW? I'm not sure about this one...