以下启动信息，是将根文件系统固化到nand的根文件分区：
AND read: device 0 offset 0x80000, size 0x500000 5242880 bytes read: OK ## Booting image at 31000000 ... Image Name: linux-2.6.30.4 Created: 2014-05-15 15:22:42 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 1970296 Bytes = 1.9 MB Load Address: 30008000 Entry Point: 30008000 Verifying Checksum ... OK OK Starting kernel ... Uncompressing Linux............................................................................................................................... done, booting the kernel. CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177 CPU: VIVT data cache, VIVT instruction cache Machine: SMDK2440 Memory policy: ECC disabled, Data cache writeback CPU S3C2440A (id 0x32440001) S3C24XX Clocks, (c) 2004 Simtec Electronics S3C244X: core 400.000 MHz, memory 100.000 MHz, peripheral 50.000 MHz CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256 Kernel command line: noinitrd root=/dev/mtdblock3 init=/linuxrc console=ttySAC0 NR_IRQS:85 irq: clearing pending ext status 00080000 irq: clearing subpending status 00000002 PID hash table entries: 256 (order: 8, 1024 bytes) Console: colour dummy device 80x30 console [ttySAC0] enabled Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Memory: 64MB = 64MB total Memory: 60712KB available (3672K code, 319K data, 144K init, 0K highmem) Calibrating delay loop... 199.47 BogoMIPS (lpj=498688) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok net_namespace: 936 bytes NET: Registered protocol family 16 S3C Power Management, Copyright 2004 Simtec Electronics S3C2440: Initialising architecture S3C2440: IRQ Support S3C24XX DMA Driver, (c) 2003-2004,2006 Simtec Electronics DMA channel 0 at c4808000, irq 33 DMA channel 1 at c4808040, irq 34 DMA channel 2 at c4808080, irq 35 DMA channel 3 at c48080c0, irq 36 S3C244X: Clock Support, DVS off bio: create slab <bio-0> at 0 SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb s3c2440-i2c s3c2440-i2c: slave address 0x10 s3c2440-i2c s3c2440-i2c: bus frequency set to 97 KHz s3c2440-i2c s3c2440-i2c: i2c-0: S3C I2C adapter NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 2048 (order: 2, 16384 bytes) TCP bind hash table entries: 2048 (order: 1, 8192 bytes) TCP: Hash tables configured (established 2048 bind 2048) TCP reno registered NET: Registered protocol family 1 NetWinder Floating Point Emulator V0.97 (extended precision) JFFS2 version 2.2. (NAND) (SUMMARY) 漏 2001-2006 Red Hat, Inc. ROMFS MTD (C) 2007 Red Hat, Inc. yaffs May 15 2014 21:30:05 Installing. msgmni has been set to 118 io scheduler noop registered io scheduler anticipatory registered (default) io scheduler deadline registered io scheduler cfq registered Console: switching to colour frame buffer device 40x30 fb0: s3c2410fb frame buffer device lp: driver loaded but no devices found ppdev: user-space parallel port driver Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled s3c2440-uart.0: s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440 s3c2440-uart.1: s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440 s3c2440-uart.2: s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440 brd: module loaded loop: module loaded Uniform Multi-Platform E-IDE driver ide-gd driver 1.18 ide-cd driver 5.00 Driver 'sd' needs updating - please use bus_type methods dm9000 Ethernet Driver, V1.31 Now use the default MAC address: 08:00:3e:26:0a:5b <6>eth0 (dm9000): not using net_device_ops yet eth0: dm9000e at c486e300,c4872304 IRQ 51 MAC: 08:00:3e:26:0a:5b (smdk2440) S3C24XX NAND Driver, (c) 2004 Simtec Electronics s3c2440-nand s3c2440-nand: Tacls=3, 30ns Twrph0=7 70ns, Twrph1=3 30ns NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit) NAND_ECC_NONE selected by board driver. This is not recommended !! Scanning device for bad blocks Bad eraseblock 157 at 0x0000013a0000 Bad eraseblock 520 at 0x000004100000 Bad eraseblock 1627 at 0x00000cb60000 Bad eraseblock 1740 at 0x00000d980000 Creating 4 MTD partitions on "NAND 256MiB 3,3V 8-bit": 0x000000000000-0x000000060000 : "u-boot-2009.08" 0x000000060000-0x000000080000 : "u-boot-parameters" 0x000000080000-0x000000580000 : "kernel -2.6.30.4" 0x000000580000-0x000010000000 : "Rootfile system" usbmon: debugfs is not available ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver s3c2410-ohci s3c2410-ohci: S3C24XX OHCI s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1 s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected usbcore: registered new interface driver libusual usbcore: registered new interface driver usbserial USB Serial support registered for generic usbcore: registered new interface driver usbserial_generic usbserial: USB Serial Driver core USB Serial support registered for FTDI USB Serial Device usbcore: registered new interface driver ftdi_sio ftdi_sio: v1.4.3:USB FTDI Serial Converters Driver USB Serial support registered for pl2303 usbcore: registered new interface driver pl2303 pl2303: Prolific PL2303 USB to serial adaptor driver mice: PS/2 mouse device common for all mice S3C24XX RTC, (c) 2004,2006 Simtec Electronics s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0 S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled Advanced Linux Sound Architecture Driver Version 1.0.20. ALSA device list: No soundcards found. TCP cubic registered NET: Registered protocol family 17 RPC: Registered udp transport module. RPC: Registered tcp transport module. s3c2410-rtc s3c2410-rtc: setting system clock to 2009-06-26 19:08:40 UTC (1246043320) yaffs: dev is 32505859 name is "mtdblock3" yaffs: passed flags "" yaffs: Attempting MTD mount on 31.3, "mtdblock3" yaffs: auto selecting yaffs2 block 114 is bad block 477 is bad block 1584 is bad block 1697 is bad yaffs_read_super: isCheckpointed 0 VFS: Mounted root (yaffs filesystem) on device 31:3. Freeing init memory: 144K Warning: unable to open an initial console. Failed to execute /linuxrc. Attempting defaults... Kernel panic - not syncing: No init found. Try passing init= option to kernel. Backtrace: [<c00308b8>] (dump_backtrace+0x0/0x104) from [<c00309d4>] (dump_stack+0x18/0x1c) r7:00000000 r6:c03e561c r5:c0024750 r4:c03e4f14 [<c00309bc>] (dump_stack+0x0/0x1c) from [<c004c818>] (panic+0x40/0x114) [<c004c7d8>] (panic+0x0/0x114) from [<c002c4fc>] (init_post+0xd0/0x100) r3:c3805e14 r2:00000006 r1:00000005 r0:c0363a1c [<c002c42c>] (init_post+0x0/0x100) from [<c0008bf0>] (kernel_init+0xbc/0xe4) r4:c03e4f18 [<c0008b34>] (kernel_init+0x0/0xe4) from [<c004ed24>] (do_exit+0x0/0x588) r5:00000000 r4:00000000 以是nfs挂载的根文件系统启动信息： U-Boot 1.1.6 (May 17 2014 - 20:46:41) DRAM: 64 MB Flash: 2 MB NAND: NAND device: Manufacturer ID: 0xec, Chip ID: 0xda ( NAND 256MiB 3,3V 8-bit) 256 MiB In: serial Out: serial Err: serial Hit any key to stop autoboot: 0 NAND read: device 0 offset 0x80000, size 0x500000 5242880 bytes read: OK ## Booting image at 31000000 ... Image Name: linux-2.6.30.4 Created: 2014-05-16 7:27:01 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 1974396 Bytes = 1.9 MB Load Address: 30008000 Entry Point: 30008000 Verifying Checksum ... OK OK Starting kernel ... Uncompressing Linux............................................................................................................................... done, booting the kernel. CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177 CPU: VIVT data cache, VIVT instruction cache Machine: SMDK2440 Memory policy: ECC disabled, Data cache writeback CPU S3C2440A (id 0x32440001) S3C24XX Clocks, (c) 2004 Simtec Electronics S3C244X: core 400.000 MHz, memory 100.000 MHz, peripheral 50.000 MHz CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256 Kernel command line: console=ttySAC0 root=/dev/nfs nfsroot=192.168.1.3:/work/nfs_root ip=192.168.1.12:192.168.1.3:192.168.1.12:255.255.255.0:SKY2440.embedsky.net:eth0:off NR_IRQS:85 irq: clearing pending ext status 00080000 irq: clearing subpending status 00000003 irq: clearing subpending status 00000002 PID hash table entries: 256 (order: 8, 1024 bytes) Console: colour dummy device 80x30 console [ttySAC0] enabled Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Memory: 64MB = 64MB total Memory: 60700KB available (3680K code, 318K data, 144K init, 0K highmem) Calibrating delay loop... 199.47 BogoMIPS (lpj=498688) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok net_namespace: 936 bytes NET: Registered protocol family 16 S3C Power Management, Copyright 2004 Simtec Electronics S3C2440: Initialising architecture S3C2440: IRQ Support S3C24XX DMA Driver, (c) 2003-2004,2006 Simtec Electronics DMA channel 0 at c4808000, irq 33 DMA channel 1 at c4808040, irq 34 DMA channel 2 at c4808080, irq 35 DMA channel 3 at c48080c0, irq 36 S3C244X: Clock Support, DVS off bio: create slab <bio-0> at 0 SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb s3c2440-i2c s3c2440-i2c: slave address 0x10 s3c2440-i2c s3c2440-i2c: bus frequency set to 97 KHz s3c2440-i2c s3c2440-i2c: i2c-0: S3C I2C adapter NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 2048 (order: 2, 16384 bytes) TCP bind hash table entries: 2048 (order: 1, 8192 bytes) TCP: Hash tables configured (established 2048 bind 2048) TCP reno registered NET: Registered protocol family 1 NetWinder Floating Point Emulator V0.97 (extended precision) JFFS2 version 2.2. (NAND) (SUMMARY) 漏 2001-2006 Red Hat, Inc. ROMFS MTD (C) 2007 Red Hat, Inc. yaffs May 16 2014 15:25:18 Installing. msgmni has been set to 118 io scheduler noop registered io scheduler anticipatory registered (default) io scheduler deadline registered io scheduler cfq registered Console: switching to colour frame buffer device 40x30 fb0: s3c2410fb frame buffer device lp: driver loaded but no devices found ppdev: user-space parallel port driver Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled s3c2440-uart.0: s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440 s3c2440-uart.1: s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440 s3c2440-uart.2: s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440 brd: module loaded loop: module loaded Uniform Multi-Platform E-IDE driver ide-gd driver 1.18 ide-cd driver 5.00 Driver 'sd' needs updating - please use bus_type methods dm9000 Ethernet Driver, V1.31 Now use the default MAC address: 08:00:3e:26:0a:5b <6>eth0 (dm9000): not using net_device_ops yet eth0: dm9000e at c486e300,c4872304 IRQ 51 MAC: 08:00:3e:26:0a:5b (smdk2440) S3C24XX NAND Driver, (c) 2004 Simtec Electronics s3c2440-nand s3c2440-nand: Tacls=3, 30ns Twrph0=7 70ns, Twrph1=3 30ns NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit) NAND_ECC_NONE selected by board driver. This is not recommended !! Scanning device for bad blocks Bad eraseblock 157 at 0x0000013a0000 Bad eraseblock 520 at 0x000004100000 Bad eraseblock 1627 at 0x00000cb60000 Bad eraseblock 1740 at 0x00000d980000 Creating 4 MTD partitions on "NAND 256MiB 3,3V 8-bit": 0x000000000000-0x000000060000 : "u-boot-2009.08" 0x000000060000-0x000000080000 : "u-boot-parameters" 0x000000080000-0x000000580000 : "kernel -2.6.30.4" 0x000000580000-0x000010000000 : "Rootfile system" usbmon: debugfs is not available ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver s3c2410-ohci s3c2410-ohci: S3C24XX OHCI s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1 s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected usbcore: registered new interface driver libusual usbcore: registered new interface driver usbserial USB Serial support registered for generic usbcore: registered new interface driver usbserial_generic usbserial: USB Serial Driver core USB Serial support registered for FTDI USB Serial Device usbcore: registered new interface driver ftdi_sio ftdi_sio: v1.4.3:USB FTDI Serial Converters Driver USB Serial support registered for pl2303 usbcore: registered new interface driver pl2303 pl2303: Prolific PL2303 USB to serial adaptor driver mice: PS/2 mouse device common for all mice S3C24XX RTC, (c) 2004,2006 Simtec Electronics s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0 S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled Advanced Linux Sound Architecture Driver Version 1.0.20. ALSA device list: No soundcards found. TCP cubic registered NET: Registered protocol family 17 RPC: Registered udp transport module. RPC: Registered tcp transport module. s3c2410-rtc s3c2410-rtc: setting system clock to 2009-06-30 05:25:44 UTC (1246339544) eth0: link down IP-Config: Complete: device=eth0, addr=192.168.1.12, mask=255.255.255.0, gw=192.168.1.12, host=SKY2440, domain=, nis-domain=embedsky.net, bootserver=192.168.1.3, rootserver=192.168.1.3, rootpath= Looking up port of RPC 100003/2 on 192.168.1.3 eth0: link up, 100Mbps, full-duplex, lpa 0xC1E1 rpcbind: server 192.168.1.3 not responding, timed out Root-NFS: Unable to get nfsd port number from server, using default Looking up port of RPC 100005/1 on 192.168.1.3 mount: server 192.168.1.3 not responding, timed out Root-NFS: Server returned error -5 while mounting /work/nfs_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; here are the available partitions: 1f00 384 mtdblock0 (driver?) 1f01 128 mtdblock1 (driver?) 1f02 5120 mtdblock2 (driver?) 1f03 256512 mtdblock3 (driver?) Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) Backtrace: [<c00308b8>] (dump_backtrace+0x0/0x104) from [<c00309d4>] (dump_stack+0x18/0x1c) r7:c39d5000 r6:c03e745c r5:00000000 r4:c3817f5c [<c00309bc>] (dump_stack+0x0/0x1c) from [<c004c4e8>] (panic+0x40/0x114) [<c004c4a8>] (panic+0x0/0x114) from [<c000900c>] (mount_block_root+0x1d8/0x21c) r3:00000000 r2:20000013 r1:c3817f5c r0:c0365964 [<c0008e34>] (mount_block_root+0x0/0x21c) from [<c000921c>] (mount_root+0xd0/0xf0) [<c000914c>] (mount_root+0x0/0xf0) from [<c00093ac>] (prepare_namespace+0x170/0x1d0) r6:00000000 r5:c0025888 r4:c03e6d64 [<c000923c>] (prepare_namespace+0x0/0x1d0) from [<c0008bec>] (kernel_init+0xb8/0xe4) r5:c002466c r4:c03e6d58 [<c0008b34>] (kernel_init+0x0/0xe4) from [<c004e9f4>] (do_exit+0x0/0x588) r5:00000000 r4:00000000 ? PS:在网上搜寻了各种方法都不行，此论坛的方法也都试了还是不行。求大神帮助，在线等帮助
| 
/1 
IP卡
狗仔卡
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
楼主