UsrMove feature

Björn Persson bjorn at
Tue Oct 25 23:11:45 UTC 2011

Jeffrey Ollie wrote:
> 2011/10/25 Björn Persson <bjorn at>:
> > It's particularly odd that I can use /sbin/mkfs to make a disk image
> > without privileges, but /bin/mount won't mount it even if I own both the
> > image and the mount point.
> You could create a setuid-root executable on the disk image and then mount
> it.

There's -o nosuid for that, but that wasn't my point. The context is the 
distinction between bin and sbin. If mkfs belongs in /sbin, why is mount in 
/bin? If mount belongs in /bin, why is mkfs in /sbin?

Björn Persson
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