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RO /usr



Hi,

I recently switched my /usr to read-only, to improve security a a bit,
but I have a problem with dpkg : for some days, it has remounted
read-write to install packages and read-only after, nut now I got an
error :

mount: /usr is busy
E: Problem executing scripts DPkg::Post-Invoke 'mount -o remount,ro /usr'

Because the system has worked with a ro /usr, nothing should be
accessing /usr to write, how wan I 'free' /usr', just the time needed
for the remount ?

momentarily,
le Moine Fou
-- 
pierre.thierry@moine-fou.org
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