On Tue, 05 Aug 2003, Andy Rabagliati wrote: > On Wed, 30 Jul 2003, Sudev Barar wrote: > > > Last week we added another switch from D-Link with 24 ports to > > accommodate growing network. Some of the machines were shifted to this > > new switch. All of sudden the three machines using ISA cards could not > > boot off the server and would get struck doing pivot_root. > > I have seen failures at this point in the process also, the pivot-root, > on known-good clients. > > I have not resolved them - however, the site is far away, and I will > only get back there in a few weeks. > > My problem is on a single switch - a CNET 24 port. > > Taking the switch apart I see there are 3 big chips - that presumably > handle 8 ports apiece. > > The failures consistently occur when the client machines are plugged > into the same 8 port block as the DHCP server and Thin Client server, > which in my case are different machines. > > My current thoughts are around cabling.
Problem solved !! For the record ... Summary of problem symptoms :- * Thin client stops booting at the pivot-root step. Very gnarly one, affecting /only/ 8 ports on the switch, /only/ for the boot step. I could boot via another port, and plug it back to the problem port, and all would be fine. My server had a 3C905 card, that used the 3c59x driver. (what is it with 3com and 5s and 9s ??) The switch has two orange/green LEDs per port. The first LED was green, the second was orange - I think meaning 100Mbit, half-duplex. All the clients were Green/off - presumably 100Mbit, full-duplex. I found the option for setting full duplex on the 3c59x driver. In /etc/modules.conf, I have :- #### snip snip ### alias eth0 3c59x options eth0 options=512 #### snip snip ### This sets (unsets ??) the full-duplex flag on the card. All is well. Cheers, Andy! ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _____________________________________________________________________ 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
