On Thu, Apr 26, 2007 at 03:09:39PM +0200, Jan Trembulak wrote: > Just for your information: > I need to prepare a system (which supports only PXE BIOS) which has a > critical start-up time - so any delay during the booting is undesirable. I > need to load at first a "small" kernel which would be able to retrieve a > "configuration" info via TCP/NFS and afterwards start "final" kernel. TFTP > is not sufficient in my "start-up" case. Finally, I've read about > LinuxBIOS/Etherboot project but I'm not able to change the BIOS chip - I'm > looking for pure SW solution - no HW modification allowed.
1) One way or the other, you're going to have to use TFTP: PXE is the name of the client side software, and it uses TFTP to download any information. So if you're looking for a way to eliminate TFTP, this isn't it. 2) For a system that startup times are so critical, I'm interested to know what advantage you're going to get with: a) Load first kernel b) intialize first kernel c) initialize devices + network d) load config file e) load second kernel f) Perform kexec g) re-initialize hardware + network h) re-load more config i) do work As opposed to: a) load full kernel b) initialze first kernel c) initialize devices + network d) load config e) do work. Short answer: Your solution is going to lie in producing a scaled down kernel with exactly what you want, and a customized initramfs. Scott -- Scott L. Balneaves | "Eternity is a very long time, Systems Department | especially towards the end." Legal Aid Manitoba | -- Woody Allen ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _____________________________________________________________________ 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
