Udpcast January 2007

udpcast@udpcast.linux.lu

11 participants
12 discussions

Darwin build fixes patch
by Devin Bayer 18 Apr '07

18 Apr '07

Hello. Thanks for developing udpcast. It almost compiles on my mac. But I have to make a few small changes. 1.) the linker doesn't support the -Wl,-warn-common option 2.) what is malloc.h? It isn't needed. 3.) struct ifreq is variable size, so we must use _SIZEOF_ADDR_IFREQ (), not pointer arithemetic 4.) some endian issues Thanks, Devin Bayer

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Exiting udp-receiver or reboot machine after a certain amount of time without transfer activity
by Jens Breuer 09 Feb '07

09 Feb '07

Hello, I am curious whether there is an commandline option which could instruct udp-receiver to exit after a certain amount of time without any udp-sender activity or generally when the transfer process doesn't start. At least I could not find anything in the documents. We use udpcast together with PXE-boot and sometimes some machines are simply not responding to the sender (why is yet unclear). After manually restarting the machines it is usually the case that the machines to be imaged are responding again and everything is well. Unfortunately it could be the case that there are machines to be imaged which are placed in locked rooms and so it is impossible to restart them manually. Regards Jens

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tg3 ethernet
by Adrian Stewart 30 Jan '07

30 Jan '07

Using UPDCast (CD Version) in a lab of 48 IBMs with SATA drives and broadcom (5787) gigabit NICs. I'm not sure why, but when I start a group of machines the transfer process goes along at a slow pace of 54Mb. The network is all Linksys 1GB switches. Why is the xfer rate so low? I've used UDPcast with the tg3 driver in the same setup with xfer rate upwards of 500Mb. This machine has USB only (keyboard and mouse). I finally got the keybaord to work but the xfer I've downloaded Cast-0-matic hoping that would resolve the xfer rate issue but to no avail. Please advise. I'm new to Linux/Unix and dont know how to compile an image with the new driver from Broadcom.com. Thanks

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optiplex 745 and keyboard problems
by Chad Brogan 30 Jan '07

30 Jan '07

I've done some googling and found a few posts which seemed to indicate that udpcast shouldn't have problems working with a usb keyboard. Nonetheless, when I boot a pc from the cd or pxe, the keyboard does not work. Where should I start in troubleshooting this problem? I am very much a linux noob, but if someone can get me started, I believe I can stumble my way through it. Thanks. Chad

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How do I include a new NIC in udpcast?
by Gunner Poulsen 30 Jan '07

30 Jan '07

Hi friends I am a Danish teacher using UDPcast to clone the workstations on the school. I have used UDP-cast for several years and have been very happy about it. Now we have upgraded our computer system with 22 new workstations - and then I got my problem: The machines network card is omboard end uses the linux module r1000. It is a Realtek RTL8168/RTL8111. Realtek have made a GPL driver: http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=13&PFi… And I found a RPM for my Fedora core 6 that works perfectly at http://rpm.pbone.net/index.php3/stat/4/idpl/3743377/com/dkms-r1000-1.05-1.n… But I can't use UDP-cast to clone the mashine. Now I have 2 questions: 1) Is there a way I can put the driver into UDPcast? 2) Are you planning to include a driver for my networkcard soon? I hope you keep developing UDP-cast :-) Good night Gunner Poulsen

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Re: [Udpcast] Any chance of UDPCAST Forum online....
by Trever Miller 25 Jan '07

25 Jan '07

On 24-Jan-07, at 4:38 AM, Michael Foster wrote: > Is there ever going to be a forum/message board for this product...it > would help a lot I think the troubleshooting of problems etc, and > being > able to help others. You're soaking in it. http://www.tvacres.com/admascots_madge.htm Nothing wrong with a mailing list, especially one that has the archives available online for searching. -- Trever Miller, Systems Engineer Hatsize Learning Corporation 1-403-538-3295 ext 224 tmiller(a)hatsize.com

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Any chance of UDPCAST Forum online....
by Michael Foster 24 Jan '07

24 Jan '07

Is there ever going to be a forum/message board for this product...it would help a lot I think the troubleshooting of problems etc, and being able to help others. Thanks Michael Foster ---------------------------------- DISCLAIMER 1. This mail and any files transmitted with it are confidential and intended solely for the use of the intended recipient. Unauthorised use, disclosure or copying is strictly prohibited and may be unlawful. If you have received this mail in error please notify the sender at the above address and then delete the mail from your system. 2. Any opinions expressed in this mail are those of the individual and not necessarily those of Darlington Borough Council. 3. This mail and any attachments are believed to be free of any virus. It is however the responsibility of the recipient to ensure that they are virus free. No responsibility is accepted by Darlington Borough Council for any loss or damage arising from the receipt of this mail or its contents.

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Problem cloning sata-disk
by Detlef Aßmann 18 Jan '07

18 Jan '07

Hello everybody, cloning ata-disks worked beautifully with udp-cast --- thank you very much! My problems started when I tried to clone machines using sata-disks. According to the mainboard documentation a VIA-controller is used for sata-disks on the third and fourth ide-device. But no matter which optional sata-drivers I tried to include in udpast - I tried the VIA-, Intel, and Marvell-drivers - udpcast can't autodetect my disk and I can't figure out what to input as a device in the 'other' section. Whatever I enter (I tried hda and sda) is followed by a message that 'no such device' is present. I'm stuck! I hope I've provide enough information to be useful. Many thanks in advance! Detlef Assmann

2 1

UDPcast and Broadcom 5787
by Adrian Stewart 15 Jan '07

15 Jan '07

Using UPDCast (CD Version) in a lab of 48 IBMs with SATA drives and broadcom (5787) gigabit NICs. I'm not sure why, but when I start a group of machines the transfer process goes along at a slow pace of 54Mb. The network is all Linksys 1GB switches. Why is the xfer rate so low? I've used UDPcast with the tg3 driver in the same setup with xfer rate upwards of 500Mb. This machine has USB only (keyboard and mouse). I finally got the keybaord to work but the xfer is still slow. I've downloaded Cast-0-matic (CD Version) hoping that would resolve the xfer rate issue but to no avail. Please advise. I'm new to Linux/Unix and dont know how to compile an image with the new driver from Broadcom.com. Thanks Adrian Stewart AStewart(a)iss.k12.nc.us

1 0

Problem Multicasting Dell GX620s
by Jon Miller 10 Jan '07

10 Jan '07

I decided to try this program on a lab of 25 GX620s with SATA drives and broadcom 57xx gigabit NICs. I'm not sure why, but when I start a group of machines the transfer process goes along at a fast pace (~75Mb). However, the process always seems to fail at different places during the transfer, usually at about 800MB to 1.3GB of data. Sometimes it will recover and start going again, but usually it just stops and all the clients are dropped. I used udp-sender.exe on a Windows machine to transfer a GZIP'd image created with G4U. I know the image is good, because I routinely use it to unicast single PCs. On the target machines, I used the cast-o-matic tool and selected all the SATA and NIC modules with Automatic detection. The machines get an IP address and /dev/sda is detected Also, I verified IGMP snooping is enabled on the switch. I have tried limiting the --max-bitrate to 40M. I'm running in 100Mbit mode --half-duplex (that's how the Summit 400 switch is setup). I've tried using the option on cast-o-matic to force IGMPv2 mode, because I'm not sure if our switch could be the issue. I also tried the udp-sender program from Ubuntu (was the version from the default repositories.. might be old). It had the same problem as the Win32 version. Although, the console had a lot more errors than the windows version... I would get streams of Timeout notAnswered notReady, etc messages in the console when the process would halt. I've also tried setting the SATA mode in the BIOS to Combination. Anyone encountered this problem before or have a suggestion? I'd really like to use this program, because it seems perfect for my purposes (imaging labs). Thanks for any help or advise, Jonathan Miller

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Udpcast January 2007