fialing @ executing /sbin/int in main.c
Abdul Rahaman
abdul.rahaman at semindia.in
Thu Nov 30 15:11:38 EST 2006
Hi srideep ,
I tried putting hello world program in Ramdisk image.It is Ok.
But its not busy box link, but just object file.
I tried creating helloworld program also as busy box link, coudnt create.
perhaps u can tell me some tip to create hello world program as busy box
link.
Then i will head towards init , can tell clear what did you mean , you took
init from package , but not from busy box,
do you mean you have selected init from linux package!!!
Regards,
Rahaman
----- Original Message -----
From: "Abdul Rahaman" <abdul.rahaman at semindia.in>
To: "Adrian Craine" <adrian.craine at nec.com.au>;
<linuxppc-embedded at ozlabs.org>
Sent: Tuesday, November 28, 2006 10:52 AM
Subject: Re: fialing @ executing /sbin/int in main.c
Hi Adrain,
I just cheked what you have told about ld.so.1 looks its there, here the
dump of 'init'
[chandrashekharp at linux sbin]$ pwd
/home/chandrashekharp/linux/new_fs8xx/ramdisk/sbin
[chandrashekharp at linux sbin]$ readelf -lh init
ELF Header:
Magic: 7f 45 4c 46 01 02 01 00 00 00 00 00 00 00 00 00
Class: ELF32
Data: 2's complement, big endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: EXEC (Executable file)
Machine: PowerPC
Version: 0x1
Entry point address: 0x100034c4
Start of program headers: 52 (bytes into file)
Start of section headers: 1010184 (bytes into file)
Flags: 0x0
Size of this header: 52 (bytes)
Size of program headers: 32 (bytes)
Number of program headers: 8
Size of section headers: 40 (bytes)
Number of section headers: 40
Section header string table index: 37
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
PHDR 0x000034 0x10000034 0x10000034 0x00120 0x00120 R E 0x4
INTERP 0x000154 0x10000154 0x10000154 0x0000d 0x0000d R 0x1
[Requesting program interpreter: /lib/ld.so.1]
LOAD 0x000000 0x10000000 0x10000000 0x6c184 0x6c184 R E 0x10000
LOAD 0x06c184 0x1007c184 0x1007c184 0x0045c 0x07018 RWE 0x10000
DYNAMIC 0x06c47c 0x1007c47c 0x1007c47c 0x000d0 0x000d0 RW 0x4
NOTE 0x000164 0x10000164 0x10000164 0x00020 0x00020 R 0x4
GNU_EH_FRAME 0x06c160 0x1006c160 0x1006c160 0x00024 0x00024 R 0x4
STACK 0x000000 0x00000000 0x00000000 0x00000 0x00000 RW 0x4
Section to Segment mapping:
Segment Sections...
00
01 .interp
02 .interp .note.ABI-tag .hash .dynsym .dynstr .gnu.version
.gnu.version_
r .rela.dyn .rela.plt .init .text .fini .rodata .eh_frame_hdr
03 .data .eh_frame .got2 .dynamic .ctors .dtors .jcr .got .sdata
.sbss .p
lt .bss
04 .dynamic
05 .note.ABI-tag
06 .eh_frame_hdr
07
[chandrashekharp at linux sbin]$
Regards,
Rahaman
----- Original Message -----
From: "Adrian Craine" <adrian.craine at nec.com.au>
To: "Abdul Rahaman" <abdul.rahaman at semindia.in>
Cc: <linuxppc-embedded at ozlabs.org>
Sent: Tuesday, November 28, 2006 2:31 AM
Subject: Re: fialing @ executing /sbin/int in main.c
Abdul Rahaman wrote:
> Hi All,
> Iam trying to port linux on an mpc8xx processor. Iam using 2.6.10
> kernel and busybox 1.0.0.The system is booting up but its failing at
> the “init”.For some reasons it says Kernel panic - not syncing: No
> init found. Try passing init= option to kernel.
> <0>Rebooting in 180 second
> Pls check below the entire text.
> Linux version 2.6.10 (gcc version 3.4.1) #83 Wed
> Nov
> 22 16:02:46 IST 2006
> On node 0 totalpages: 8192
> DMA zone: 8192 pages, LIFO batch:2
> Normal zone: 0 pages, LIFO batch:1
> HighMem zone: 0 pages, LIFO batch:1
> Built 1 zonelists
> Kernel command line: console=ttyCPM,38400=console=ttyCPM debug
> root=/dev/ram0 rw
> PID hash table entries: 256 (order: 8, 4096 bytes)
> Decrementer Frequency = 495000000/60
> m8xx_wdt: wdt disabled (SYPCR: 0xFFFFFF88)
> Warning: real time clock seems stuck!
> Console: colour dummy device 80x25
> Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Memory: 29592k available (1572k kernel code, 360k data, 92k init, 0k
> highmem)
> Calibrating delay loop... 261.12 BogoMIPS (lpj=130560)
> before dcache_init
> after dcache_init
> Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
> Before SysFs_init
> After SysFs_init
> After init_rootfs
> after init_mount_tree
> inside proc_root_init
> after proc_misc_init
> checking if image is initramfs...it isn't (no cpio magic); looks like
> an initrd
> Freeing initrd memory: 746k freed
> after SK_Init
> before register file system in sockets
> after register file system in sockets
> after kernel mount in sockets
> NET: Registered protocol family 16
> JFFS2 version 2.2. (NAND) (C) 2001-2003 Red Hat, Inc.
> Software Watchdog Timer: 0.07 initialized. soft_noboot=0
> soft_margin=60 sec (nowayout= 0)
> Serial: CPM driver $Revision: 0.01 $
> ttyCPM0 at MMIO 0xf000a80 (irq = 20) is a CPM UART
> io scheduler noop registered
> io scheduler anticipatory registered
> io scheduler deadline registered
> io scheduler cfq registered
> RAMDISK driver initialized: 4 RAM disks of 8192K size 1024 blocksize
> loop: loaded (max 8 devices)
> elevator: using anticipatory as default io scheduler
> mice: PS/2 mouse device common for all mice
> eth0: FEC ENET Version 0.2, FEC irq 3, MII irq 4, addr 00:a0:1e:a8:7b:cb
> u32 classifier
> OLD policer on
> NET: Registered protocol family 2
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 2048 bind 4096)
> NET: Registered protocol family 17
> RAMDISK: Compressed image found at block 0
> VFS: Mounted root (ext2 filesystem).
> Freeing unused kernel memory: 92k init
> Kernel panic - not syncing: No init found. Try passing init= option to
> kernel.
> <0>Rebooting in 180 second
> I have tried googling,but haven’t got any suitable answer to my
> problem.Please help,as Iam not able to figure out why the “init” is
> failing.
> Sunil
Are all the libraries present for init?
# readelf -lh sbin/init
should contain a line similar to the following: [Requesting program
interpreter: /lib/ld.so.1]
If this is missing the kernel will fail to run init with the above behavior.
Adrian.
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