Thanks for your reply. Yes, the file /sbin/init is in the ramdisk file system with execute permissions on it. I am running Busybox (how can I check the version?), but my /sbin/init is not Busybox's init.
One thing I'd like to mention is, I have used the same ramdisk filesystem and the same version of Linux 2.4 kernel and U-Boot bootloader and have been able to successfully execute the /sbin/init. This board has a Xilinx Virtex 2 Pro FPGA with a PPC405. On my new board, with a Xilinx Virtex 4 FX100 FPGA, with the kernel running on a PPC405 and the same filesystem, the execve of /sbin/init "hangs". By hangs, I mean there is no output on the console after the below output and it does not return (which indicates that it has not encountered an error of some sort, since execve returns on error only). So, I am not sure where it is stuck and is there any way to tell where it's stuck at? Hope this above info and below screen capture provide a bit more background to the issue. Below is a capture of the screen output: Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 OCP uart ver 1.6.2 init complete LSP Revision 42 ikconfig 0.5 with /proc/ikconfig Starting kswapd Disabling the Out Of Memory Killer Journalled Block Device driver loaded devfs: v1.12c (20020818) Richard Gooch (rgooch at atnf.csiro.au) devfs: boot_options: 0x1 pty: 256 Unix98 ptys configured Serial driver version 5.05c (2001-07-08) with no serial options enabled ttyS00 at 0xfdfff003 (irq = 22) is a 16550A xgpio #0 at 0x50000000 mapped to 0xC5000000 RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize loop: loaded (max 8 devices) Tracer: Initialization complete RAMDISK: Compressed image found at block 0 Freeing initrd memory: 5104k freed EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended VFS: Mounted root (ext2 filesystem). Mounted devfs on /dev Freeing unused kernel memory: 40k init -----Original Message----- From: Jeff.Fellin at rflelect.com [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 30, 2006 3:55 PM To: Anantharaman Chetan-W16155 Cc: linuxppc-embedded at ozlabs.org; linuxppc-embedded-bounces+jeff.fellin=rflelect.com at ozlabs.org Subject: Re: execve of /sbin/init fails "Anantharaman Chetan-W16155" <Chetan.S.Anantharaman at motorola.com> To: <linuxppc-embedded at ozlabs.org> Sent by: cc: linuxppc-embedded-bounces+jeff.fellin=rflelect.com Subject: execve of /sbin/init fails @ozlabs.org 05/30/2006 15:59 >Hi, >I am trying to bring up a custom board with a PPC405 processor running Linux 2.4.20 (MontaVista Release) and am >having problems with the call to execve("/sbin/init", argv_init, envp_init) not returning in the file main.c. The processor >just hangs and there is no output on the terminal. I have tried to see if I can run "bin/sh" and even this execve call does >not return. Some things about the board are, the networking option has been disabled in the Linux .config file. I am >running U-Boot 1.1.1 as the bootloader and am downloading the uImage (compressed kernel) and the initrd.boot >(filesystem) into RAM and accessing the filesystem in RAM. Chetan, I would check the contents of the initrd filesystem you created to verify the files are in the image. If they are monitor the console output to verfiy the ramdisk filesystem is found and installed into ram. Jeff Fellin >Any help as to what could be causing this to happen or how to debug this issue would be appreciated. Also, I've tried >to capture the return value of the execve call but since the call does not return, this has not helped any. Thanks, Chetan Anantharaman _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded at ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
