Udpcast March 2009

udpcast@udpcast.linux.lu

7 participants
9 discussions

Network card Error
by Darin MacLachlan 30 Dec '09

30 Dec '09

This was working and now it has stopped. Have a UDPcast server running on a HP DL360G5 with 4 NICS. One connected to an internal infrastructure (eth2) and another connected to a dedicated switch with the client systems on the same switch (eth3). When i run the UDPcast send or receive, using the following command: udp-sender -f /home/base.udpc --interface eth3 --point-to-point --full- duplex --max-bitrate 600m --nokbd --portbase=9922 --min-receivers 1 -- rexmit-hello-interval 5000 --max-wait 300 I get the following error message: Udp-sender 2007-03-23 No suitable network interface found The following interfaces are available: lo 127.0.0.1 eth2 10.46.0.251 eth2:1 10.46.0.1 Interestingly, an ifconfig show eth3 as a valid network adapter, but the udp-sender does not see the device. This was working last week, and nothing has changed on the server I have tried everything, restarting DHCP, removing the interface and adding again. Rebooted the server, restarted the network stack manually. nothing seems to help. Using SUSE linux 10 as the base server OS.

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unicast with async
by Justin Lipman 29 Dec '09

29 Dec '09

Hi folks, I'd like to use udp-sender with async and a unicast address instead of multicast so that unicast at the MAC layer is actually used. Ive tried using the pointopoint switch, but I get the message "pointopoint mode set, and 0 participants instead of 1". Is there a way to do this with udpcast? Thanks kindly. J

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UDP Cast ready-made boot images and i686 issues
by Henrique Rodrigues 03 Nov '09

03 Nov '09

Hello, I've been using UDP Cast extensively for a while now and I love it, but I had an issue last week and I want to share it witou you. The UDP Cast website provides handy ready-made boot images. Apparently, those images are compiled for i686 and I couldn't make them work on an older machine because the processor doesn't implement the CMOV operation. The problem seem to belong to GCC, because it thinks that every i686 processor implements the optional CMOV operation, which is not true. I solved the problem by compiling my own UDP Cast kernel, but I suggest that the next UDP Cast ready-made boot images drop the i686 requirement and stick to i386, for compatibility reasons. Is this a reasonable request? Thank you and best regards, Henrique Rodrigues -- Henrique Rodrigues http://sodki.org Engenharia Informatica e de Computadores - Instituto Superior Tecnico

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Re: [Udpcast] INSTALL UDPCAST IN A PARTITION
by Bertrand THOMAS 26 Mar '09

26 Mar '09

udpcast-request(a)udpcast.linux.lu a écrit : > 1. Re: INSTALL UDPCAST IN A PARTITION (Henrique Rodrigues) > 2. Re: INSTALL UDPCAST IN A PARTITION (Alain Knaff) > > Henrique Rodrigues wrote: >> On Tue, March 24, 2009 07:09, Silvio Bandeira wrote: >>> Can we install an udpcast image, so I can boot udpcast in many machines >>> using a local image, instead of booting from CD/PXE ? > > Why not load udpcast directly rather than play russian dolls by pretending > to boot a floppy? > > Just point GRUB's kernel and initrd parameters _directly_ to the kernel and > udpcast ramdisk: > > title UDPcast > root (hd0,3) > kernel /linux > initrd /initrd > > Where vmlinux.bin is the kernel (as downloaded from > http://udpcast.linux.lu/current/linux) and initrd is the udpcast ram disk > (as downloaded from http://udpcast.linux.lu/current/initrd) > > Alain > Thank you so much, it is so easy this way! Just a problem: I thought I could get a preconfiguration by putting a udpcfg.txt file along with linux and initrd, but it doesn't work, I still get the menu at boot. What is wrong? Bertrand THOMAS

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USB Keyboard support
by Gerald Helm 25 Mar '09

25 Mar '09

I am having trouble adding USB keyboard support. Please help. Thanks. Gerald Helm Fresno Campus IT/IS gerald.helm(a)sjvc.edu<mailto:gerald.helm@sjvc.edu> Cell # 805-7681

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Good morning
by Adriano das Neves 25 Mar '09

25 Mar '09

Good morning, I know you have to create the boot in UDPCAST Pendrive?

1 0

INSTALL UDPCAST IN A PARTITION
by Silvio Bandeira 24 Mar '09

24 Mar '09

Can we install an udpcast image, so I can boot udpcast in many machines using a local image, instead of booting from CD/PXE ? Thanks in advance. Please reply to this address, i'm not on the list (I will be if I have to :) ) Thanks again. -- Silvio Bandeira

3 2

Sending problem
by Tomislav Parčina 02 Mar '09

02 Mar '09

I have problems restoring image with Clonezilla which uses udpcast. Since it seems that it's problem in udpcast I'm sending description of the problem here. Whole discussion you can find here https://sourceforge.net/mailarchive/forum.php?thread_name=49A3C8C9.1080603%… or here http://tinyurl.com/bk5m9p And here is explanation of problem and messages that I receive on CLI and in log files. I create image of MS Win XP and I save it to server. Then I boot clients with PXE and they start Clonezilla. After that Clonezilla server should start sending multicast (or brodcast, whichever I choose in configuration) data. 3:14 minutes after that I get this message on CLI **** apt-cache search/opt/drbl/sbin/ocs-functions: line 3537: 27660 Exit 141 ( for img in $imagedir/$target_d/$img_file_prefix; do cat $img; done ) 27662 Floating point exception| $udpcast_send_cmd 2> $udpcast_stderr **** And in /var/log/messages I have **** Feb 27 08:26:37 server udpcast[27662]: New connection from 192.168.1.104 (#0) Feb 27 08:26:37 server udpcast[27662]: first connection: min wait[0] secs - max wait[0] - min clients[4] Feb 27 08:26:47 server udpcast[27662]: New connection from 192.168.1.103 (#1) Feb 27 08:27:10 server udpcast[27662]: New connection from 192.168.1.105 (#2) Feb 27 08:27:20 server udpcast[27662]: New connection from 192.168.1.106 (#3) Feb 27 08:27:22 server udpcast[27662]: min receivers[4] reached: starting Feb 27 08:27:22 server udpcast[27662]: Starting transfer: file[] pipe[] port[2232] if[eth1] participants[4] Feb 27 08:30:36 server udpcast[27662]: dropped client #0 because of timeout Feb 27 08:30:36 server udpcast[27662]: Disconnecting #0 (192.168.1.104) Feb 27 08:30:36 server udpcast[27662]: dropped client #1 because of timeout Feb 27 08:30:36 server udpcast[27662]: Disconnecting #1 (192.168.1.103) Feb 27 08:30:36 server udpcast[27662]: dropped client #2 because of timeout Feb 27 08:30:36 server udpcast[27662]: Disconnecting #2 (192.168.1.105) Feb 27 08:30:36 server udpcast[27662]: dropped client #3 because of timeout Feb 27 08:30:36 server udpcast[27662]: Disconnecting #3 (192.168.1.106) **** I have tried to restore two images and they both end the same way (3:14 min and same message). And I can restore that image with unicast, so it's not image problem. I have tried both multicast and brodcast method, and non of them works, so I guess it's not switch issue. All clients and server are connected on one switch. Please confirm me that I'm having problems with unicast. Please help me to troubleshoot this problem. Best regards, P.S. I'm using Ubuntu 8.10 server and udpcast version is 20081213 -- Tomislav Parčina tomislav.parcina(a)email.t-com.hr Google talk: parcina80

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Problems With timeout of satellite transmission
by Diego Zimmermann 01 Mar '09

01 Mar '09

Hi guys, I'm using udp-sender to send an announce package and using udp-receiver inside of a C program in loop who stays checking for new announce packages. The announce package has no more then 1.5K The problem is, after some interactions, udp-receiver lock and stay quiet waiting for close the connection by sender, but the announce is complete inside the system. So, my question is, can I put a timeout in udp-receiver to close this connection if some defined time pass away? -- Diego de Carvalho Zimmermann Phone: +55(41) 8836-8972 http://blogdoboot.blogspot.com "Be Free, use Linux"

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Udpcast March 2009