Hello, We came across the same symptoms in our systems with kernel 3.13 or newer. Also our Ubuntu 12.10 based systems failed the same way when kernel 3.13 was used. Restarting nbd-server or killing the nbd-server process serving the client always fixed the problem.
We found out that there was a change in kernel 3.13 that caused the nbd-client to always use the same source port number when connecting the nbd-server. As dhcpd usually gives out the same ip for the same client, the nbd tcp connection had always the same srcip:srcport <-> dstip:dstport pairs. As the nbd-server had the client's connection still open, it did not accept a new connection from the same port. Bisecting revealed that commit e34c9a69970d8664a36b46e6445a7cc879111cfd broke it (http://marc.info/?l=git-commits-head&m=138433307618907&w=2) and the fix is now here on its way to stable kernels too: http://www.spinics.net/lists/netdev/msg282079.html So if you are experiencing the same bug, a patch should be on its way. Happy hacking, Veli-Matti ----- Original Message ----- From: "Jacob Tennant" <jacob.tenn...@pierpont.edu> To: "LTSP list" <ltsp-discuss@lists.sourceforge.net> Sent: Monday, May 5, 2014 3:36:03 PM Subject: [Ltsp-discuss] 1st boot - OK, 2nd boot - FAIL!?!?! I just booted up my first client on a fresh LTSP install on Ubuntu Server 14.04LTS and it worked. However when I shutdown the thin-client machine and restarted it, everything went as before except I got the following error;;; Error: Socket failed: Connection timed out Exiting. mount: mounting /dev/nbd0 on /root failed: Invlai argument /scripts/init-bottom/ltsp: line 27: panic: not found chroot can't execute 'usr/bin/test': No such file or directory mount: mounting /root on rofs failed: Invalid argument mount: mounting /root/rofs failed: Invalid argument mount: mounting /dev on /root/dev failed: No such file or directory mount: mounting /sys on /root/sys failed: No such file or directory mount: mounting /proc on /root/proc failed:No such file or directory Target filesystem doesn't have requested /sbin/init-ltsp No init found. Try passing init bootarg BusyBox v1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) built-in shell (ash) Enter 'help' for a list of built-in commands. (initramfs) I have tried to reboot the thin-client 3 times and get the same error everytime. Any suggestions? -- Jacob W. Tennant IT Specialist Pierpont Community & Technical College Office: 304-333-3641 jacob.tenn...@pierpont.edu Confidentiality Notice The information contained in this e-mail and any attachments may be legally privileged and confidential. If you are not an intended recipient, you are hereby notified that any dissemination, distribution or copying of this e-mail is strictly prohibited. If you have received this e-mail in error, please notify the sender and permanently delete the e-mail and any attachments immediately. You should not retain, copy or use this e-mail or any attachment for any purpose, nor disclose all or any part of the contents to any other person. Thank you! ------------------------------------------------------------------------------ Is your legacy SCM system holding you back? Join Perforce May 7 to find out: • 3 signs your SCM is hindering your productivity • Requirements for releasing software faster • Expert tips and advice for migrating your SCM now http://p.sf.net/sfu/perforce _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
