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39705 discussions

Irq_table not loaded when boot from etherboot
by Lawrence LL. Dai 17 Jan '03

17 Jan '03

Hi All: I have tried to boot from network with linuxbios and failed. The output showed: "PCI: No IRQ known for interrupt pin A of device 04:01.0. Probably buggy MP table" Will the irq_table only be loaded in hardwaremain() which is not called in etherboot? Who can give me some help? Thanks. Ps: the attached is the output. Best wishes, Lawrence

3 2

DDR SDRAM Initialization.
by sivakumar 17 Jan '03

17 Jan '03

Hi, I want to support DDR SDRAM in linuxbios. When was browsing the code, I found only the SDRAM support. Also I found from the specification that Initialization sequence of DDR SDRAM and SDRAM are different. Have any one coded for initialization of DDR SDRAM. Currently I am writing the code to support the DDR SDRAM using DDR SDRAM spec. I am facing some problem with that. Can any send me the DDR SDRAM initialization sample code for reference , if you have? Thanks, Siva.S -- sivakumar <sivakumar.subramani(a)wipro.com> wipro

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CVS problem?
by steven james 16 Jan '03

16 Jan '03

Greetings, Does anyone know what's up with CVS? The checkout hangs up on RON_GA6-BXC. The CVS browser on the web page just refuses connections. G'day, sjames -- -------------------------steven james, director of research, linux labs ... ........ ..... .... 230 peachtree st nw ste 701 the original linux labs atlanta.ga.us 30303 -since 1995 http://www.linuxlabs.com office 404.577.7747 fax 404.577.7743 -----------------------------------------------------------------------

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rom image dates
by John Allen 16 Jan '03

16 Jan '03

I noticed that the romimage files created by the linuxBIOS build do not have a date in the last few bytes of the image. I believe that most rom images use this area to identify the date the rom was compiled. Is there a tool in the LinuxBIOS "arsenal" that can add the date to the correct file, say linuxbios.rom, before performing the cat to get romimage? John

3 4

Jumping to LinuxBIOS
by sivakumar 16 Jan '03

16 Jan '03

Hi, My image boots up to the following serial output message, Ram5 Ram6 Copying LinuxBIOS to ram. Jumping to LinuxBIOS. It says that it is jumpimg to LinuxBIOS, that means it has copied the images to RAM. So next step is to CALL(harwaremain). It is not jumping in to hardwaremain function. >From the linuxbios.map I found that address of hardwaremain function is 00000904 T hardwaremain I have checked my DDR SDRAM register programming and initialization progams with specification. It looks ok to me. If you want I can send it for reference. I want to verify that following option that I am using are correct are not, Some configuration I am using are as follow, I am not currently enabling MTRR. Currently I am look with the performance. I am not supporting SMP now. I also verified some of the DDR SDRAM register by read it back. I am using 256 KB Flash ROM and 256 MB RAM. While burning the Flash I am burning the 65 KB linuxbios.strip file on FLASH ROM. I have attached the makefile.settings along with this mail. Can any one help me in resolving the problem ;-( -Siva -- sivakumar <sivakumar.subramani(a)wipro.com> wipro

4 9

Newbie install question
by Jeffrey Knight 16 Jan '03

16 Jan '03

Hi all: I'm looking for a linux version/distribution that will boot as fast as possible. I have a PII intel motherboard, and am interested in trying to get linuxBIOS on it (the Phoenix BIOS alone take a good 15+ seconds). My questions are: do I need any special *hardware* to install linuxBIOS? In reading the FAQ's on the website, I'm a bit confused by "burning a flash ROM" using a flash burner. and is there any documentation on installing linuxBIOS other than the FAQ's? Although I'm very familiar with linux, a lot of this is new to me. Thanks! Jeff _________________________________________________________________ Help STOP SPAM: Try the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail

1 0

quick start
by Paweł Wojtal 16 Jan '03

16 Jan '03

Hi! Is there somewhere a site, I can find an idiot-image(s) of linuxbios ready to flash into rom? Any kind of support: ide0 boot, or dhcp or others... any board (I will find any board on second-hand market). I need to temporary decrease my frustration with compiling from sources and start to play with anything ;-))). Excuse my English, please. Thanks. femur

2 1

subscription
by erto＠katamail.com 16 Jan '03

16 Jan '03

Hi! Please UNSUBSCRIBE my address. Best Regards

1 0

Latest source code of LinuxBIOS.
by sivakumar 15 Jan '03

15 Jan '03

Hi, I have downloaded the source code tar from the following link, http://sourceforge.net/project/showfiles.php?group_id=3206&release_id=42674 But it seems to br one year old. I am not able to connect to CVS respository. Where can I get the latest tar ball of the Linuxbios source code. Thanks, Siva -- sivakumar <sivakumar.subramani(a)wipro.com> wipro

2 1

RE: Boot from etherboot - blocked by INT 10
by Lawrence LL. Dai 15 Jan '03

15 Jan '03

Hi, All I have made my image download the kernel from the server and boot up successfully. But an error comes out at the end of the serial output: ... ... Kernel command line: bz.elf -retaddr 0X000940A4 ... ... VFS: Cannot open root device "" or 00:00 Please append a correct "root=" boot option Kernel panic: VFS: Unable to mount root fs on 00:00 Compare with the normal Linux output: ... ... Kernel command line: auto BOOT_IMAGE=linux ro root=301 BOOT_FILE=/boot/vmlinuz-2 .4.18-3 console=tty0 console=ttyS0,9600n8 ... ... So I have tried the followings: 1. Add the option (--command-line= "root= ..." or --append="root= ...") when I mkelfimage. 2. Try the latest version 2.0 of mkelfimage 3. Add command line ="root = ..." in Linux bios CONFIG file But the error does exit. How can I fix it? Thanks, Lawrence -----Original Message----- From: Eric W. Biederman [mailto:ebiederman@lnxi.com] Sent: 2003?1?10? 15:38 To: LinuxBIOS Cc: Lawrence LL. Dai Subject: Re: Boot from etherboot - blocked by INT 10 "Lawrence LL. Dai" <lawrence(a)tyanchina.com> writes: > Hi, Eric > > I suppose that mknbi and mkelf would also cause this problem.Because > they both tag a kernel, but the kernel must be the one like vmlinuz and vmlinux > needs BIOS functions such as INT 10. (I know vmlinux does not need INT X, but > vmlinux can not be tagged by mknbi and mkelf. Or I have missed something else?) The difference is mknbi/mkelf that come standard with etherboot when the process the linux kernel start the kernel in 16bit mode and run it's BIOS code, mkelfImage simulates the effect of the 16bit BIOS code by reading LinuxBIOS tables or making the needed BIOS calls itself, and then it enters Linux at it's unofficial 32bit entry point. mkelfImage can take either a bzImage or a vmlinux. Eric

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