-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Herbert Poetzl schrieb: > On Mon, Aug 25, 2008 at 01:43:02AM +0200, Oliver Welter wrote: > Hi All, > > I am playing around with aufs (unionfs) and dont find the right way to > do the following: > > I want to have a readonly root-image and mount a writable partition on > top of it. I can so so mounting the trees first in the main context and > than start the vserver, but I want to do it in the context of the guest, > so it is not visible outside. > > I put the aufs mount in the guest fstab: > none / aufs dirs=overlay:rootfs=ro 0 0 > >> that's the correct way to do it (fstab.remote for >> network related mounts) > > When I launch the guest, I get: > vcontext(/dev/null) permission denied > >> looks like your /dev/null is not accessible, >> try to add an explicit 'dev' to the fstab, >> IIRC, the fstab mounts are executed 'securely' >> which means they add 'nodev' if not specified >> otherwise ... none / aufs dev,dirs=/vservers/_overlays/testing:/vservers/testing=ro does the job - -- Protect your environment - close windows and adopt a penguin! PGP-Key: 3B2C 8095 A7DF 8BB5 2CFF 8168 CAB7 B0DD 3985 1721 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIs+ntyrew3TmFFyERAsdeAJ9vWA0myYzeuFAOX+C9Pu5Zx2v0cgCeM0fY IEYqyEjz4yYhCRPgXn8iTVY= =V5ri -----END PGP SIGNATURE-----