[Pkg-ltsp-devel] Bug#780591: ltsp-client-builder fails when installing Debian Edu combined server in virtualbox environment

[Wolfgang Schweer]

On Mon, Mar 23, 2015 at 12:02:05PM -0700, Vagrant Cascadian wrote:
> >> On Tue, Mar 17, 2015 at 10:00:08PM +0100, Wolfgang Schweer wrote:
> >> > With this (trivial) modification installation succeeded.
> >> > 
> >> > --- a/postinst	2015-03-06 10:00:00.000000000 +0100
> >> > +++ ltsp-client-builder.postinst	2015-03-17 21:39:38.824682599 +0100
> >> > @@ -64,7 +64,7 @@
> >> >  db_progress STEP 1
> >> >  
> >> >  if [ "$USE_CDROM" != "false" ] && [ ! -f /target/media/cdrom/.disk/info ]; then
> >> > -    chroot /target mount /media/cdrom
> >> > +    mount /dev/cdrom /target/media/cdrom
> >> >      log "mounting /media/cdrom"
> >> >  fi
> 
> This patch breaks USB stick installs.
 
Confirmed after having started an USB stick installation on real (and 
very old) hardware; something like /dev/sdXY is mounted on /cdrom inside 
d-i environment.

Inspired by this observation I tried this patch in the virtualbox 
environment (booting from 'cd') and as well on bare metal w/ USB stick:

--- a/ltsp-client-builder.postinst	2015-02-07 18:30:46.000000000 +0100
+++ b/ltsp-client-builder.postinst	2015-03-24 16:04:09.510087326 +0100
@@ -64,7 +64,7 @@
 db_progress STEP 1
 
 if [ "$USE_CDROM" != "false" ] && [ ! -f /target/media/cdrom/.disk/info ]; then
-    chroot /target mount /media/cdrom
+    mount $(mount | grep cdrom | cut -d' ' -f1 | head -1) /target/media/cdrom
     log "mounting /media/cdrom"
 fi
 
@@ -244,3 +244,4 @@
 #DEBHELPER#
 
 exit 0
+

Installation succeded in both cases. 'head -1' is most probably 
unneeded, added just in case the device is mounted twice. It won't do 
any harm though, I guess.

Wolfgang

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