[Pkg-sysvinit-devel] /run transition

[Roger Leigh]

On Sun, Apr 17, 2011 at 07:21:56AM +1000, Kel Modderman wrote:
> On Sun, 17 Apr 2011 02:06:50 AM Roger Leigh wrote:
> > Done.  The diff to sync svn with the uploaded NMU is attached.  I stupidly
> > didn't sync with svn for the upload, so I uploaded a second time with the
> > svn changes synched, which is why there's a second revision in the
> > attached diff.
> 
> Applied the diff. Also applied one more patch to svn, so please do sync with
> that before further /run fixups.

Hi Kel and other sysvinit developers,

I've attached a further update for your consideration, which fixes a
few issues.  If it's OK with you, this could be uploaded to
experimental (with your changes folded into the same version in the
changelog) as 2.88dsf-13.5.  Unless you'd prefer to do a maintainer
upload.

The logic used for mounting filesystems is duplicated entirely between
the various scripts doing mounting, and the mtab script used to
generate the initial mtab.  This includes the domtab() function, which
is almost entirely identical to domount() with the use of -f with mount.
This patch removes the duplication, and uses the same codepaths for
both mounting and mtab generation, which will make the scripts much
more robust when making any changes.

The reason for doing this was principally to allow for /remounting/ of
already mounted filesystems so that filesystems mounted in the
initramfs and subsequently moved onto the rootfs could be made to
use the mount options specified in /etc/fstab (and /etc/default/tmpfs,
where applicable).  This means that all filesystems mounted by the
initramfs are entirely user-configurable, so mount options and policies
are not hardcoded in the initramfs.  I also added remount/reload
argument support to mountkernfs/mountdevsubfs which means you can edit
/etc/defaults/* and/or /etc/fstab and then reload to make those changes
active.

Other than that, we create relative rather than absolute symlinks, and
I've made the error checking and other parts of the scripts more
robust.

Other than these changes, I'm not aware of anything outstanding in
initscripts needing changes to support /run.  The symlinks neeed
making relative, and while I did the mount changes to allow for a
clean handover from the initramfs-mounted /run to the real system
so our configuration would still get applied, this is a general
change which applies to all initramfs-mounted filesystems via
creation of a suitable entry in /etc/fstab.


Regards,
Roger

-- 
  .''`.  Roger Leigh
 : :' :  Debian GNU/Linux             http://people.debian.org/~rleigh/
 `. `'   Printing on GNU/Linux?       http://gutenprint.sourceforge.net/
   `-    GPG Public Key: 0x25BFB848   Please GPG sign your mail.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 198 bytes
Desc: Digital signature
URL: <http://lists.alioth.debian.org/pipermail/pkg-sysvinit-devel/attachments/20110422/fbcea5fa/attachment.pgp>