[Pkg-sysvinit-devel] Bug#391605: [Pbuilder-maint] Bug#392136: pbuilder: sysvinit's mounted lib/init/rw prevents cleanup

[Roland Stigge]

Hi,

Junichi Uekawa wrote:
> Why isn't this fixed in sysvinit ?
> I thought this was meant to fix it:
> 
> sysvinit (2.86.ds1-28) unstable; urgency=low
> 
>   * Avoid mounting /lib/init/rw/ when being installed in a chroot
>     environment. (Closes: #390126)

The respective change to sysvinit/initscripts:

+chrooted() {
+  if [ -r /proc/1/root ]; then
+    return 1
+  fi
+  return 0
+}

...

 if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-27" \
-   && [ ! -f /lib/init/rw/.ramfs ] ; then
+   && [ ! -f /lib/init/rw/.ramfs ] && ! chrooted ; then
        [ -f /etc/default/tmpfs ] && . /etc/default/tmpfs

etc. doesn't work with debootstrap. chrooted() evaluates the existence
of /proc/1/root. Consider debootstrap's second_stage_install (): It
first mounts /proc into the chroot (setup_proc()) and then installs
initscripts where postinst (mounting /lib/init/rw in this case) is called.

bye,
  Roland