[arch-projects] [PATCH] [initscripts] Use mount -n for devpts and shm

[Dave Reisner]

On Mon, May 16, 2011 at 08:13:46PM +0200, Tom Gundersen wrote:
> On Mon, May 16, 2011 at 7:15 PM, Seblu <seblu at seblu.net> wrote:
> > On Mon, May 16, 2011 at 8:44 AM, Gerardo Exequiel Pozzi
> > <vmlinuz386 at yahoo.com.ar> wrote:
> >> Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386 at yahoo.com.ar>
> >> ---
> >>  rc.sysinit |    4 ++--
> >>  1 files changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/rc.sysinit b/rc.sysinit
> >> index 733149c..6a01029 100755
> >> --- a/rc.sysinit
> >> +++ b/rc.sysinit
> >> @@ -29,9 +29,9 @@ if ! /bin/mountpoint -q /dev; then
> >>  fi
> >>  /bin/mkdir -p /run/lock /dev/{pts,shm}
> >>  /bin/chmod 1777 /run/lock
> >> -/bin/mountpoint -q /dev/pts || /bin/mount /dev/pts &> /dev/null \
> >> +/bin/mountpoint -q /dev/pts || /bin/mount -n /dev/pts &> /dev/null \
> >>        || /bin/mount -n -t devpts devpts /dev/pts -o mode=620,gid=5,nosuid,noexec
> >> -/bin/mountpoint -q /dev/shm || /bin/mount /dev/shm &> /dev/null \
> >> +/bin/mountpoint -q /dev/shm || /bin/mount -n /dev/shm &> /dev/null \
> >>        || /bin/mount -n -t tmpfs shm /dev/shm -o mode=1777,nosuid,nodev
> >>
> >>  # remount root ro to allow for fsck later on, we remount now to
> 
> Thanks for the patch!
> 
> > Why doing this ? With /etc/mtab linked to /proc/mounts, why just every
> > time calling in with -n ?
> 
> We don't yet have the symlink, until we do we should use "-n" here.
> 
> I'm planning to look into the remaining downsides of using libmount
> and symlinking mtab to /proc/self/monuts, to see if we can make the
> switch. "The others" are doing it, so hopefully we can join soon. If
> anyone knows of problems, I'd be interested to know.
> 
> Cheers,
> 
> Tom

We had some fallout when we inititally did this on the launch of 2.19:

https://bugs.archlinux.org/task/23014

I'm not sure if this was ever reported to upstream or what the current
status of this is.

d