Re: can't umount /usr(/dev/hdb3)

[joost@rulcmc.leidenuniv.nl (joost witteveen)]

> Hi all,
> 
> I upgrade a lot of packages, don't know exactly which ones though,  and now
> shutdown -h now and umount will not unmount /usr(aka /dev/hdb3). It gives me
> same error:
>         umount: /dev/hdb3: device is busy 
> 
> Does anyone have any idea as to what is causing this?

The other asnwers in this list are all very usefull, but sometimes
I find that whatever I do, I cannot unmount for example /usr.
In such cases, it's best to do

  mount -o remount,ro /usr

i.e. remount it read-only, so that all data is written do the partition,
and you can now safely switch off the computer (execute "halt").
(assuming all other partions are unmonuted properly).

-- 
joost witteveen     joostje@debian.org
    
I came, I saw, ..., well, it wasn't free so I left again. (LUA, 1988)