On Fri, Dec 12, 2008 at 04:19:09PM -0500, Scott R. Ehrlich wrote:
> Under CentOS/RH 5.2, is it possible to mount a remote (iscsi) 
> filesystem/partition as rw for root, but ro for users?

Sure:

  chown -R root:root /root/of/filesystem
  find /root/of/filesystem -exec chmod o-w {} \;

:)

Not exactly what you asked for, but AFAIK it's the only way to
accomplish what you want.

There might be another, but I'm not sure if it would work, and I don't
have the time or inclination to figure it out at the moment...  You
can mount a filesystem twice using mount --bind/--rbind.  So in theory
you could do something like this:

  # cd /your/mounts
  # mkdir protected
  # mkdir shared
  # mkdir protected/mnt
  # mkdir shared/mnt
  # chown root:root protected shared
  # chmod 700 protected
  # chmod 755 shared
  # mount -o rw /iscsi/partition /your/mounts/protected/mnt
  # mount --rbind -o ro /your/mounts/protected/mnt /your/mounts/shared/mnt

I actually think this won't work for some reason or other, but it
might.  I don't really remember the semantics of bind mounts...

-- 
Derek D. Martin    http://www.pizzashack.org/   GPG Key ID: 0xDFBEAD02
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