On Tue, Sep 20, 2011 at 1:48 AM, Damjan wrote:

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* enable libmount

With libmount we get support for /etc/mtab being both a regular file and a symlink to /proc/self/mountinfo. The latter is "the future", but we won't force that as not all mount helpers (such as cifs, fuse, ntfs and nfs) have been ported yet. If you don't use any of the unported mount helpers, you can delete /etc/mtab and make it a symlink manually.

What is the expected problem with fuse filesystems when /etc/mtab is a symlink?

The problem would be with mount options that are not stored in the kernel (so not in /proc/self/mounts). With libmount these are stored in /run/monut/* instead, but if your helper does not use libmount they will be lost. One example is the "user" option.

I have /etc/mtab as a symlink for quite some time, since I moved to systemd, and haven't noticed any problems with encfs or sshfs - both of which are fuse filesystems

It might work fine depending on the options you use. Cheers, Tom