2010-11-26 00:10:29 init: exec rc failed

Chen Kuantong (CHINA)

Message: 96222

Hello:

The board I use is ezkit533(rev0.2),a very old one. But now I just can get this board. I have tried many uclinux and uboot versions. It seems that only the very old version, 2005 R3-RC3 can make the board start.

I have successfully booted that board,but when I download uclinux image kernel, there are still some errors.

ezkit> bootm 0x1000000

## Booting image at 01000000 ...

Image Name: uclinux kernel image

Created: 2010-11-26 4:12:38 UTC

Image Type: Blackfin Linux Kernel Image (gzip compressed)

Data Size: 1161238 Bytes = 1.1 MB

Load Address: 00001000

Entry Point: 00001000

Verifying Checksum ... OK

Uncompressing Kernel Image ... OK

Starting Kernel at = 1000

Linux version 2.6.12.1-BFIN-2005R3 (root@ltb.localdomain) (gcc version 3.4.4) #3

Fri Nov 26 12:03:58 CST 2010

ADSP-BF533 Rev. 0.2

uClinux/BF533

Blackfin uClinux support by blackfin.uclinux.org

Processor Speed: 594 MHz core clock and 118 Mhz System Clock

Board Memory: 32MB

Memory map:

text = 0x001000-0x08ce78

data = 0x09701c-0x0b8314

bss = 0x0b8320-0x0c3378

rootfs = 0x0c3378-0x4c4000

stack = 0x098000-0x09a000

Command line: 'root=/dev/mtdblock0 rw'

Instruction Cache Enabled

Data Cache Enabled (write-through)

Built 1 zonelists

Kernel command line: root=/dev/mtdblock0 rw

Configuring Blackfin Priority Driven Interrupts

PID hash table entries: 128 (order: 7, 2048 bytes)

Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)

Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)

Physical pages: 1f00

Memory available: 26552k/32163k RAM, (39k init code, 559k kernel code, 176k data

, 1024k dma)

Blackfin Scratchpad data SRAM: 4 KB

Blackfin DATA_A SRAM: 16 KB

Blackfin DATA_B SRAM: 16 KB

Security Framework v1.0.0 initialized

Capability LSM initialized

Mount-cache hash table entries: 512

Linux NoNET1.0 for Linux 2.6

Blackfin DMA Controller for BF533

ezkit_init(): registering device resources

Real Time Clock Driver v1.10e

blackfin_dpmc_init

Dynamic Power Management Controller: major=10, minor = 254

DPMC Driver v0.1

BlackFin BF533 serial driver version 2.00 With DMA Support

io scheduler noop registered

io scheduler cfq registered

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

uclinux[mtd]: RAM probe address=0xc3378 size=0x400000

Creating 1 MTD partitions on "RAM":

0x00000000-0x00400000 : "EXT2fs"

uclinux[mtd0]: set EXT2fs to be root filesystem

VFS: Mounted root (ext2 filesystem).

Freeing unused kernel memory: 36k freed (0x8d000 - 0x95000)

ttyS0 at irq = 21 is a builtin BlackFin UART

dma_alloc_init: dma_page @ 0x00091000 - 256 pages at 0x01f00000

bfin_change_speed: baud = 57600, cval = 0x13

init: exec rc failed

init: Booting to single user mode

init: exec of single user shell failed

All the things I have done when making menuconfig is cancel the support part of busybox. Because compling kernel fails when including busybox.The error message is:

bfin-uclinux-gcc -Wl,-elf2flt -s -Wl,-warn-common -s -Wl,-warn-common -o busybox -Wl,--start-group /mnt/uClinux-dist5.3/uClinux-dist/user/busybox/applets/applets.a /.......(including many libs) ...../mnt/uClinux-dist5.3/uClinux-dist/user/busybox/libbb/libbb.a -lm -lcrypt -Wl,--end-group -L/mnt/uClinux-dist5.3/uClinux-dist/lib/uClibc/. -L/mnt/uClinux-dist5.3/uClinux-dist/lib/uClibc/lib -L/mnt/uClinux-dist5.3/uClinux-dist/lib/uClibc/libm -L/mnt/uClinux-dist5.3/uClinux-dist/lib/libnet -L/mnt/uClinux-dist5.3/uClinux-dist/lib/libdes -L/mnt/uClinux-dist5.3/uClinux-dist/lib/libaes -L/mnt/uClinux-dist5.3/uClinux-dist/lib/libpcap -L/mnt/uClinux-dist5.3/uClinux-dist/lib/zlib -L/mnt/uClinux-dist5.3/uClinux-dist/lib/libssl -L/mnt/uClinux-dist5.3/uClinux-dist/lib/uClibc/libc -L/mnt/uClinux-dist5.3/uClinux-dist/lib/uClibc/libcrypt

busybox.elf2flt(.rodata+0x8): undefined reference to `_test_main'

busybox.elf2flt(.rodata+0x2c): undefined reference to `_date_main'

busybox.elf2flt(.rodata+0x1dc): undefined reference to `_test_main'

collect2: ld returned 1 exit status

I am quite sure 2005R3 supports my borad. Some one else has successfully compled one image base on this uclinux version. But I don't know the host linux distro. Does it have much influence in compling kernel?

my environment:

gcc version 4.1.2 20070502 (Red Hat 4.1.2-12)

GNU Make 3.81

And I am confused that whether I should do some changes to kernel, in addition to the following step:

1. make mrproper;

2.make menuconfig ,just cancel busybox and leave other options default.

3.make all.

Above all,I found the file uclinux /romfs/etc/rc:

hostname blackfin

#/bin/expand /etc/ramfs.img /dev/ram0

mount -t proc none /proc

mount -t ramfs /dev/ram0 /var