September 2002 - Packet Writing - openSUSE Mailing Lists

UDF kernel module
by Leo Przybylski 09 Sep '02

09 Sep '02

Hello, Does anyone know if it is ok to use the UDF kernel module that comes with kernel 2.4.19? Or is it recommended that I use the linux-udf kernel module instead? Should I compile the kernel module with write support in the kernel if I do? Does the packet-cd 2.4.19-2 patch work with the 2.4.19 kernel or should I use the 2.4.19 patch? -Leo http://foopan.ath.cx

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Website / locate of latest files
by Steven Ellis 04 Sep '02

04 Sep '02

I noticed the SF site is well out of date. Is there an uptodate location for all this stuff. Steve ===== -- If you listen very carefully you can sometimes hear the dolphins sing pinguellis(a)yahoo.co.uk __________________________________________________ Do You Yahoo!? Yahoo! Finance - Get real-time stock quotes http://finance.yahoo.com

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Re: booting to pcktcdvd
by James Blanford 04 Sep '02

04 Sep '02

--- On Tue 09/03, Cory Bell wrote: From: Cory Bell [mailto: cory.bell(a)usa.net] To: james_blanford(a)excite.com Cc: dz(a)debian.org, packet-writing(a)suse.com Date: 02 Sep 2002 21:34:39 -0700 Subject: Re: booting to pcktcdvd > On Mon, 2002-09-02 at 14:57, James Blanford wrote: > > Your idea sounds good, but I have no idea how to put udf on a second > session. I think you would have the same problem as I do. After > booting with an iso9660 file system, ioctl would prevent you from > registering /dev/pktcdvd0 since the device file would be on a read only > (iso9660) file system. > > Couldn't you just use devfs? > > yeah, it looks like that should help, but your use of the word "just" is a bit of an understatement. Devfs is something I've been trying to avoid, but I can see its benefits here. - Jim ------------------------------------------------ Changed your e-mail? Keep your contacts! Use this free e-mail change of address service from Return Path. Register now!

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pktsetup and cdrwtool problems
by Leo Przybylski 04 Sep '02

04 Sep '02

Hello, I read the instructions for preparing a cd-rw for packet writing, and this is what I did. I formatted my cd-rw with cdrwtool -d /dev/scd0 -q and then I ran: pktsetup /dev/pktcdvd0 /dev/scd0 but I get the error: ioctl: Inappropriate ioctl for device from pktsetup. Any ideas? Also, is there any way that I can use packet writing with a cd-r? I would really like to do packet writing with a cd-r. I am also having trouble with mkudffs. When I use the command: mkudffs --spartable=2 --media-type=cdrw /dev/scd0 I get the error: trying to change type of multiple extents Any ideas on this one as well? Thanks in advanced, Leo http://www.serverdown.dhs.org

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Packet writing to cd-r
by Leo Przybylski 03 Sep '02

03 Sep '02

Hello, Is it possible to write packets to cd-r or is only cd-rw supported. -Leo http://www.serverdown.dhs.org

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Re: booting to pcktcdvd
by James Blanford 03 Sep '02

03 Sep '02

--- On Mon 09/02, Massimo Dal Zotto wrote: > > I tried to do a similar thing with an iso9660 rescue + a r/w udf > filesystem > on the same cdrw but I couldn't make it bootable. Did you succeed in > booting > from your cdrw? If udf compatible with the El Torito standard? > > Another thing that doesn't work for me is creating an udf filesystem in > the > second session. > No, I boot from a kernel on a floppy disk. Then I load a small file system from a second floppy disk just so that I can register /dev/pktcdvd0. Finally I change root to the r/w udf system. I have only one session on the CD R/W disk which contains the entire file system. Once I've chroot to the CD R/W, I can take the floppy out and forget it. It works, but I have occasional corruption problems. Your idea sounds good, but I have no idea how to put udf on a second session. I think you would have the same problem as I do. After booting with an iso9660 file system, ioctl would prevent you from registering /dev/pktcdvd0 since the device file would be on a read only (iso9660) file system. Good Luck, - Jim ------------------------------------------------ Changed your e-mail? Keep your contacts! Use this free e-mail change of address service from Return Path. Register now!

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booting to pcktcdvd
by James Blanford 02 Sep '02

02 Sep '02

So, the reason I need symlinks working is that I'm playing with a little Linux system with it's root file system on a packet writing CDRW. I could say it would make a nifty rescue system that could be updated or an experimental device for testing systems that could damage the file system medium or a guest system so you could operate Linux on someone else's computer without affecting their hard drive. But really I just thought it would be fun. One trouble is bootstrapping. I can't boot directly to /dev/pktcdvd0, since it requires user space registration. /dev/sg0 is a character device. I can boot to /dev/scd0, but when I try to register /dev/pktcdvd0, I get a message from ioctl saying it can't be done with the device existing on a read only sytem. So I have to boot to an initial RAM disk and change root. I really don't like doing it that way. I can't free the RAM disk, probably because the actual pktcdvd0 and scd0 device files are on the RAM disk. Since busybox init can only be run by the kernel, I have to add another init layer and I can't shut down properly. So, could ioctl be hacked to let me register pktcdvd? Shouldn't this registration of a device be done in kernel space anyway? I'm guessing that pktsetup is a interim solution until you decide how to get packet writing into the main stream. Anyway, all thoughts would be appreciated. Like I said, I'm just playing around. - Jim ------------------------------------------------ Changed your e-mail? Keep your contacts! Use this free e-mail change of address service from Return Path. Register now!

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packetwriting how after compiling and inserting the new modules?
by Guy Forssman 01 Sep '02

01 Sep '02

Hi there, I have a Mandrake 8.2 (sorry!) on a pentium II 300 MHZ laptop running. I have a parallel external cdwriter I have a usb multimemory reader/writer (MMC & SD, SmartMedia,compactFlash and Memory Stick) I have a internal DVD I was able to compile 2.4.19 with packetwriting and UDF suport I inserted the pkcdvd module and udf module cdrecord -scanbus gives me host 0 the dvd host 1 Multimemory reader/writer host 2 HP 7510e cd writer When I use xcdraost I can burn to my external writer I can also write and read to multimemory reader/writer I can also read dvd's How can I do packetwriting to the CD-WRITER? /dev/scd0 points to my dvd and there's no /dev/scd1. In fact I can't find any file in the /dev directory wich is pointing to my host2? thanks in advance Guy Forssman

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