сейчас попробовал смонтировать *.ext2 в папку с nfs, лог запуска:
U-Boot 2010.09-00020-ga313ade (Nov 23 2011 - 16:02:07)
DRAM: 64 MiB
Flash: 64 MiB
In: serial
Out: serial
Err: serial
Note: to disable console close COL0 to COL1 pin
Net: ep93xx_eth-0
Hit any key to stop autoboot: 2 \0x08\0x08\0x08 1 \0x08\0x08\0x08 0
## Booting kernel from Legacy Image at 60080000 ...
Image Name: Linux-2.6.20.21
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1780528 Bytes = 1.7 MiB
Load Address: 00008000
Entry Point: 00008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
Linux version 2.6.20.21 (asv@debian) (gcc version 4.3.4 (GCC) ) #1 PREEMPT Mon Jun 6 11:03:14 MSD 2011
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
Machine: Tion-Pro2 Board
Memory policy: ECC disabled, Data cache writeback
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
Built 1 zonelists. Total pages: 16192
Kernel command line: root=/dev/nfs nfsroot=10.42.42.32:/home/vlad/tion/root ip=10.42.42.200 console=ttyAM0,57600 video=ep93xxfb:vout=1,vmode=22 rootpath=10.42.42.32:/home/vlad/tion/root bootserver=10.42.42.32 domain=10.42.42.32
PID hash table entries: 256 (order: 8, 1024 bytes)
Console: colour dummy device 80x30
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 32MB 32MB = 64MB total
Memory: 61140KB available (3268K code, 340K data, 124K init)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
NET: Registered protocol family 16
ep93xx: PLL1 running at 399 MHz, PLL2 at 192 MHz
ep93xx: FCLK 199 MHz, HCLK 99 MHz, PCLK 49 MHz
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 2048 bind 1024)
TCP reno registered
NetWinder Floating Point Emulator V0.97 (extended precision)
audit: initializing netlink socket (disabled)
audit(0.380:1): initialized
JFFS2 version 2.2. (NAND) (C) 2001-2006 Red Hat, Inc.
io scheduler noop registered (default)
io scheduler anticipatory registered
ep93xx-backlight ep93xx-backlight.0: initialized
ep93xxfb_get_par: TFT 800x600 8" neg
Console: switching to colour frame buffer device 100x37
fb0: EP93xx frame buffer at 800x600x16bpp
ep93xx_wdt: EP93XX watchdog, driver version 0.3
Serial: AMBA driver $Revision: 1.41 $
RS485 hardware flow control on 3rd serial port
apb:uart1: ttyAM0 at MMIO 0x808c0000 (irq = 52) is a AMBA
apb:uart2: ttyAM1 at MMIO 0x808d0000 (irq = 54) is a AMBA
apb:uart3: ttyAM2 at MMIO 0x808e0000 (irq = 55) is a AMBA
RAMDISK driver initialized: 2 RAM disks of 32768K size 1024 blocksize
loop: loaded (max 8 devices)
nbd: registered device at major 43
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
PPP BSD Compression module registered
PPP MPPE Compression module registered
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
Cirrus Logic EP93XX IDE initialization.
physmap platform flash device: 03ff0000 at 60000000
physmap-flash.0: Found 2 x16 devices at 0x0 in 32-bit bank
NOR chip too large to fit in mapping. Attempting to cope...
Intel/Sharp Extended Query Table at 0x010A
Intel/Sharp Extended Query Table at 0x010A
Intel/Sharp Extended Query Table at 0x010A
Intel/Sharp Extended Query Table at 0x010A
Intel/Sharp Extended Query Table at 0x010A
Using buffer write method
Using auto-unlock on power-up/resume
cfi_cmdset_0001: Erase suspend on write enabled
Reducing visibility of 65536KiB chip to 65472KiB
RedBoot partition parsing not available
Using physmap partition information
Creating 3 MTD partitions on "physmap-flash.0":
0x00000000-0x00080000 : "bootloader"
0x00080000-0x00300000 : "kernel"
0x00300000-0x03fc0000 : "rootfs"
ep93xx-spi ep93xx-spi.1: SPI controller initialized
ep93xx-usb ep93xx-usb: EP93xx OHCI
ep93xx-usb ep93xx-usb: new USB bus registered, assigned bus number 1
ep93xx-usb ep93xx-usb: irq 56, io mem 0x80020000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver hiddev
usbcore: registered new interface driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
usbcore: registered new interface driver usbserial
drivers/usb/serial/usb-serial.c: USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
drivers/usb/serial/usb-serial.c: USB Serial Driver core
drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI USB Serial Device
usbcore: registered new interface driver ftdi_sio
drivers/usb/serial/ftdi_sio.c: v1.4.3:USB FTDI Serial Converters Driver
drivers/usb/serial/usb-serial.c: USB Serial support registered for pl2303
usbcore: registered new interface driver pl2303
drivers/usb/serial/pl2303.c: Prolific PL2303 USB to serial adaptor driver
mice: PS/2 mouse device common for all mice
m41t00 0-0068: rtc core: registered m41t00 as rtc0
Registered led device: ep93xx:green
Registered led device: ep93xx:red
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 15
m41t00 0-0068: setting the system clock to 2000-04-14 19:35:13 (955740913)
IP-Config: Guessing netmask 255.0.0.0
IP-Config: Complete:
device=eth0, addr=10.42.42.200, mask=255.0.0.0, gw=255.255.255.255,
host=10.42.42.200, domain=, nis-domain=(none),
bootserver=255.255.255.255, rootserver=10.42.42.32, rootpath=
Looking up port of RPC 100003/2 on 10.42.42.32
Looking up port of RPC 100005/1 on 10.42.42.32
Root-NFS: Server returned error -13 while mounting /home/vlad/tion/root
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or unknown-block(2,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
переменные окружения u-boot:
u-boot> printenv
baudrate=57600
mtdparts=mtdparts=physmap-flash.0:512k(u-boot)ro,2560k(ukernel),62208k(root),128k(free),64k(u-boot_env1),64k(u-boot_env2)
partition=nor0,2
fileaddr=0x04000000
ethact=ep93xx_eth-0
serverip=10.42.42.32
bootdelay=2
bootfile=uImage
ipaddr=10.42.42.200
bootcmd=bootm 60080000
bootargs=root=/dev/nfs nfsroot=10.42.42.32:/home/vlad/tion/root ip=10.42.42.200 console=ttyAM0,57600 video=ep93xxfb:vout=1,vmode=22 rootpath=10.42.42.32:/home/vlad/tion/root bootserver=10.42.42.32 domain=10.42.42.32
stdin=serial
stdout=serial
stderr=serial
ethaddr=00:12:34:56:78:90
Environment size: 569/65531 bytes
не понимаю что случилось, раньше была проблема с init, а теперь кфс не монтируется вовсе, сейчас попробую сделать nfs ro, может поможет