Fwd: execve of /sbin/init fails
Whoops.. forgot to replyall. -- Forwarded message -- From: Steve Iribarne (GMail) [EMAIL PROTECTED] Date: May 31, 2006 6:30 AM Subject: Re: execve of /sbin/init fails To: Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com On 5/30/06, Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com wrote: 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?), I think you can check the version when you do make menuconfig. I think the version info is in there somewhere. Also it may be in the README. but my /sbin/init is not Busybox's init. Right.. so if you are not using Busybox's init, make sure you told Busybox this. When you do make menuconfig in Busybox, I think it is under the General tab, there is a check for using Busybox's init or not. I think in 1.00-rc3 they turned that on by default. They may have always turned it on, I can't remember. 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 0x5000 mapped to 0xC500 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:Jeff.Fellin at rflelect.com] 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
execve of /sbin/init fails
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. 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 -- next part -- An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20060530/09c64124/attachment.htm
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
execve of /sbin/init fails
You could also try compiling init statically. I've had success with that in the past until I figured out what the actual problem was. On 5/30/06, Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com wrote: 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. 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
execve of /sbin/init fails
On 5/30/06, Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com wrote: 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. Hmm.. Ok.. so I've read the other suggestions all good, but I think we are missing some info. Are you running Busybox? If you are using Busybox, what version? Also, what init are you using? Are you using busyboxes? The ramdisk suggestion was a good one. First off, check what is in your ramdisk. Also check the rights of the files in the ramdisk. Make sure you have the execute bit set. I've seen exactly what you are seeing when my rights on the file init were messed up. Also I think I've seen a hang with an older version of Busybox using their version of init. I just got sysinit and that seemed to fix it, (Although I had to reconfig Busybox to not use their version of init) The processor just hangs and there is no output on the terminal. When you say the process just hangs, where are you in the boot cycle? Is it before you see the linux kernel starting to load? Or do you see any kernel messages start to spew out? Hope this helps a little. -stv
execve of /sbin/init fails
On 5/30/06, Steve Iribarne (GMail) netstv at gmail.com wrote: On 5/30/06, Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com wrote: 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. Hmm.. Ok.. so I've read the other suggestions all good, but I think we are missing some info. Are you running Busybox? If you are using Busybox, what version? Also, what init are you using? Are you using busyboxes? The ramdisk suggestion was a good one. First off, check what is in your ramdisk. Also check the rights of the files in the ramdisk. Make sure you have the execute bit set. I've seen exactly what you are seeing when my rights on the file init were messed up. Also I think I've seen a hang with an older version of Busybox using their version of init. I just got sysinit and that seemed to fix it, (Although I had to reconfig Busybox to not use their version of init) I guess I totally assumed busybox was being used, so good suggestion. I too saw this with an older version of busybox (0.60 maybe?) and I ended up editing the config to contain only init and then compiled it statically and placed it on the rootfs. It turned out to be just the right size and functionality for my needs. I think I later updated to a 1.0 or 1.1-series and didn't have to use the same hack. The processor just hangs and there is no output on the terminal. When you say the process just hangs, where are you in the boot cycle? Is it before you see the linux kernel starting to load? Or do you see any kernel messages start to spew out? Hope this helps a little. -stv ___ Linuxppc-embedded mailing list Linuxppc-embedded at ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
execve of /sbin/init fails
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 0x5000 mapped to 0xC500 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
