On Wed, 2005-04-20 at 09:57 -0700, Lever, Charles wrote: > ok, i've reviewed the code in the kernel that generates the contents of > /proc/mounts. this will always show at least the transport protocol and > the NFS version. /etc/mtab (and thus the mount command) does not > guarantee this; if a mount is done with defaults (ie the options aren't > specified), the options in effect will not show up in /etc/mtab. > > /proc/mounts is modulated by the namespace of the process that is > reading it. if the automounter process can see all system mounts, > you're golden, but any namespace-related access control will affect the > ability for an automounter to read the mount options you're interested > in from /proc/mounts. > > the kernel (post 2.6.12) can do under-the-cover mounts. thus entries > may be added to or removed from /proc/mounts over time, and there may be > an interesting challenge to find the right entry given this churn.
But this info will only show existing mounts. If there are no NFS mounts when the automounter is started, then /proc/mounts won't tell us anything useful. What we really need is some what to know what the default NFS transport/version is for the kernel we're running on. We also probably need to get at this info without relying on doing an actual mount first. -- Jeff _______________________________________________ autofs mailing list autofs@linux.kernel.org http://linux.kernel.org/mailman/listinfo/autofs
