[linux-audio-user] can't start jackd from normal user
Eric Dantan Rzewnicki
rzewnickie at rfa.org
Fri Sep 30 07:47:08 EDT 2005
On Thu, Sep 29, 2005 at 01:37:26PM +0200, Antonio wrote:
> On Thu, 2005-09-29 at 12:58 +0200, Peder Hedlund wrote:
> > In Mandrake /dev/shm is mounted by /etc/rc.sysinit :
> > mount -n -t tmpfs none /dev/shm
> > after it has mounted devpts.
> > I guess you could have it mounted either way (but not both).
> > Do you have a fstab entry and if so, what does it look like?
> I had no fstab entry for shm in my debian etch (testing) system.
> So /dev/shm had wrong permission. I don't now if this is a bug in the
> jackd pachage. However, if I do one of these three things I get the
> right permission so jack can start from normal user:
> 1) Add to fstab:
> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
> 2) manually mont shm with:
> # mount -t tmpfs shm /dev/shm
> 3) change the permissions:
> # chomd a+rwx /dev/shm
> So use 1) for now (as suggested by Mark previously). Is this the best
> solution on debian? (Not that I don't trust Mark, but only to ask if
> debian has a specific behaviour here).
On debian sarge /dev/shm is mounted by /etc/init.d/mountvirtfs
ls -la /etc/rcS.d/S02mountvirtfs
lrwxr-xr-x 1 root root 21 Jun 19 2004 /etc/rcS.d/S02mountvirtfs -> ../init.d/mountvirtfs
I have no /dev/shm entry in /etc/fstab and /dev/shm looks like this:
eric at audiobox:~$ ls -la /dev/shm/
drwxrwxrwt 4 root root 80 Aug 28 17:56 .
drwxr-xr-x 14 root root 24576 Aug 28 17:52 ..
drwx------ 3 eric eric 60 Aug 28 17:56 jack-1000
drwxr-xr-x 2 root root 60 Aug 28 17:50 network
I don't have an etch system handy to check, but would expect it to be
the same there.
Eric Dantan Rzewnicki | Systems Administrator
Technical Operations Division | Radio Free Asia
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