SWAP causes connection loss

[Brendan Grieve]

My first bug report.
Gutsy 7.10 Host. Gutsy 7.10 LTSP Client Chroot.

When booting an LTSP client, using NBD and squashfs (Default in LTSP 5+), I kept getting an error where the squashfs volume would just disappear.

Traced it down to the script:
  /etc/init.d/ltsp-client-setup

When enabling SWAP over nbd, all hell breaks loose. For example, I have the following in the clients /boot/lts.conf (which is copied to the correct place when the host executes ltsp-update-kernels)
---
  [default]
    SOUND=True
    LOCALDEV=False
    NBD_SWAP=True
    NBD_SERVER=1.2.3.4
    NBD_PORT=9572
    SYSLOG=server
---

The reason is that the SWAP nbd is using /dev/nbd0. So is the currently mounted /rofs which is a component of the / unionfs.

The fix is to change the file to use /dev/nbd1.

 - Brendan

[Oliver Grawert (ogra)]

you can drop the NBD_PORT and NBD_SERVER directives both are set automatically ...
actually the device in /opt/ltsp/i386/etc/init.d/ltsp-client-setup is hardcoded to nbd0 ...
you can work around it by changing teh device name on line 65 and 66 (and run ltsp-update-image afterwards)

i'll work on a proper autodetection mechanism that automatically takes the last free device for hardy (8.04)

[Launchpad Janitor (janitor)]

This bug was fixed in the package ltsp - 5.0.40~bzr20080212-0ubuntu1

---------------
ltsp (5.0.40~bzr20080212-0ubuntu1) hardy; urgency=low

  * new upstream version with fixes for the following bugs:
   LP: #149006 (default to 24bit colordepth)
   LP: #190419 (move .nbi image out of the way before regeneration)
   LP: #113709 (security server sources.list entry handling)
   LP: #135419 (chroot upgrade issues)
   LP: #177926 (documentation fix)
   LP: #184316 (client locale handling (default to en_GB if none is set)
   LP: #189237 (fix path handling, remove trailing slashes from arguments)
   LP: #132397 (handle proxies with apt)
   LP: #148109 (only use getltscfg if lts.conf is valid)
   LP: #172459 (only use free nbd devices to do network swapping)
  * install our own dhcpd.conf
  * add rdesktop to ltsp-client deps (LP: #153589)
  * fix xorg deps of ltsp-client (LP: #158735)
  * add plugin for mythbuntu kiosk setup (LP: #188413), thanks to Michael Haas

 -- Oliver Grawert <email address hidden> Mon, 12 Feb 2008 17:48:48 +0100