On May 17, 2010, at 6:44 PM, Ray Van Dolson <rayvd at bludgeon.org> wrote: > On Mon, May 17, 2010 at 06:41:40PM -0400, Ross Walker wrote: >> On May 17, 2010, at 5:37 PM, R P Herrold <herrold at centos.org> wrote: >> >>> On Mon, 17 May 2010, Phil Schaffner wrote: >>> >>>> Stephen Harris wrote on 05/17/2010 12:15 PM: >>>>> Don't do NFS localhost mounts from fstab >>>> >>>> Why would you want to do localhost: NFS mounts anyway? >>> >>> Perhaps for a restricted 'regrafting' RO overmount down in a >>> autobuilder's chroot tree, rather than a 'bind' mount ? I can >>> see some rare uses for it as a way to solve ACL problems >> >> Since these are RO to local system why not mount them "soft,intr"? >> >> Or you could use automount. > > I didn't realize you couldn't do bind mounts read-only. Interesting. > > What about re-mounting the same block device (presumably as ext3) in > ro > mode at another mountpoint? > > Or if that complained, maybe created an additional block device under > /dev with identical major/minor numbers and mounting *that* RO? > > Maybe ext3 wouldn't handle that too well... Do not try that, at best it will give you inconsistent views of the file system, at worse it will scramble your file system. -Ross