Bug#386945: [Pkg-sysvinit-devel] Bug#386945: initscripts: User Mode Linux (UML) doesn't start because /dev/shm is mounted noexec

[Petter Reinholdtsen]

[Henrique de Moraes Holschuh]
> I just remembered something: how are you going to make sure there is
> a /var/run and /var/lock mountpoint to use on the root filesystem?

They are created when initscripts is installed, by remounting / to
avoid any /var/ mounts, and creating the directories there.

> If /var is in a separate partition, they need not (and might not be
> there).  We cannot create them either, as something might be mounted
> in /var during package install time, AND the root filesystem is
> read-only at the stage of the bootstrap process we will need the
> mountpoints to exist.

Yes, we can't create them at boot time, so they are created when the
package is installed instead. :)

> We have to use an different mountpoint, one that is guaranteed to
> exist in /, and which is guaranteed not to be a symlink or something
> else that is not allowed as a mountpoint.  Please revert the
> mountkernfs.sh changes.

Why?  I suspect you should have a look at the changes.  It seem
perfectly safe to me.  The only problem is with partial upgrades and
packages expecting persistense in /var/run/ and /var/lock/.

Friendly,
-- 
Petter Reinholdtsen