[Bug 813837] Re: ltsp client not able to load boot file: ltsp/amd64.tmp/pxelinux.0

[Jean-Baptiste Lallement]

The problem seems to be this piece of code in ltsp-client-
builder.postinst:

=====
chroot /target ltsp-update-image >$COMPRESS_LOG 2>&1 &
OLDVAL=0
while [ -z ${LOOP} ]; do
    rawval=$(tail -1 $COMPRESS_LOG |sed -e 's/^.* //')
    if [ "$(echo $rawval|grep '[0-9]\%$')" ];then
        val=$(echo $rawval|tr -d %)
        if [ "$val" -gt 95 ]; then
            db_progress SET 100
            sleep 3
            LOOP="False"
        else
            if [ "$val" -gt "${OLDVAL}" ];then
                db_progress SET $val
                OLDVAL=$val
            fi
        fi
    fi
done
=====


ltsp-update-image is started in the background but the loop to update the debconf progress bar exits when the mksquashfs progress reach 96% 
So there is a possibility to exit the loop and continue the execution _before_ ltsp-update-image ends.

In the case $ARCH.img.tmp still exists when the script does the
substitution in dhcpd.conf . But in the end the image is correctly
renamed and there is no evidence of the failure excepted the wrong entry
in dhcpd.conf


** Changed in: ltsp (Ubuntu)
       Status: New => Triaged

** Changed in: ltsp (Ubuntu)
   Importance: Undecided => Medium

** Changed in: ltsp (Ubuntu)
     Assignee: (unassigned) => Canonical Foundations Team (canonical-foundations)

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https://bugs.launchpad.net/bugs/813837

Title:
  ltsp client not able to load boot file: ltsp/amd64.tmp/pxelinux.0

Status in “ltsp” package in Ubuntu:
  Triaged
Status in “ltsp” source package in Lucid:
  Triaged

Bug description:
  Running lucid-alternate-amd64.iso (10.04.03)

  Both the LTSP server and thin client (pxe boot) are able to obtain an
  IP address from the internal dhcp server.

  The thin client starts to connect and fails with an error unable to
  locate the filename: ltsp/amd64.tmp/pxelinux.0

  WORKAROUND:
  In /etc/ltsp/dhcpd.conf
  Change the line
      filename "/ltsp/amd64.tmp/pxelinux.0";
  To
      filename "/ltsp/amd64/pxelinux.0";

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: ltsp-server-standalone 5.2.1-0ubuntu9
  ProcVersionSignature: Ubuntu 2.6.32-33.70-generic 2.6.32.41+drm33.18
  Uname: Linux 2.6.32-33-generic x86_64
  Architecture: amd64
  Date: Wed Jul 20 16:03:59 2011
  InstallationMedia: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release amd64 (20110719.2)
  PackageArchitecture: all
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: ltsp

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