Robert P. J. Day wrote:
once upon a time, after i set up my fedora system, i had a habit of
re-mounting the entire /usr filesystem read-only so that, even as
root, i couldn't do something indescribably stupid and destroy
valuable files. (theoretically, this remounting should be fine since,
according to the FHS, the contents of /usr should be static and
shareable.)
all i would do (and demo to students in class, as well, since they
thought it was tres cool), was to use mount with the remount option:
# mount -oro,remount /usr
if i try that nowadays, though, i get:
# mount -oro,remount /usr
mount: /usr is busy
make it ro in /etc/fstab
--
Cheers
John
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