Hi, I have been struggling for a couple of days with YAFFS2 kernel 2.6.25.x The error I get is "Warning: unable to open an initial console." When I boot the system in ext2 and/of jffs2 all seems to work, and I do not get the "initial console" error. Someone can help me a little further? Kind regards, Noel. Below you can find a bootlog. Uncompressing Linux............................................................. ........................................ done, booting the kernel. Linux version 2.6.25 (pingo01@phoenix) (gcc version 4.2.1) #2 Thu Sep 22 12:00:4 1 CEST 2008 CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177 Machine: Atmel AT91SAM9260-EK Memory policy: ECC disabled, Data cache writeback Clocks: CPU 198 MHz, master 99 MHz, main 18.432 MHz CPU0: D VIVT write-back cache CPU0: I cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets CPU0: D cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256 Kernel command line: mem=64M console=ttyS0,115200n8 root=/dev/mtdblock4 rw noini trd rootfstype=yaffs2 AT91: 96 gpio irqs in 3 banks PID hash table entries: 256 (order: 8, 1024 bytes) Console: colour dummy device 80x30 console [ttyS0] 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: 61696KB available (2876K code, 199K data, 128K init) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok net_namespace: 152 bytes NET: Registered protocol family 16 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: 2, 16384 bytes) TCP bind hash table entries: 2048 (order: 1, 8192 bytes) TCP: Hash tables configured (established 2048 bind 2048) TCP reno registered NetWinder Floating Point Emulator V0.97 (double precision) JFFS2 version 2.2. (NAND) - 2001-2006 Red Hat, Inc. yaffs Sep 18 2008 10:39:02 Installing. io scheduler noop registered io scheduler anticipatory registered (default) atmel_usart.0: ttyS0 at MMIO 0xfefff200 (irq = 1) is a ATMEL_SERIAL atmel_usart.1: ttyS1 at MMIO 0xfffb0000 (irq = 6) is a ATMEL_SERIAL atmel_usart.2: ttyS2 at MMIO 0xfffb4000 (irq = 7) is a ATMEL_SERIAL brd: module loaded loop: module loaded MACB_mii_bus: probed eth0: Atmel MACB at 0xfffc4000 irq 21 (aa:22:33:44:55:ee) eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=ffffffff:00, irq=-1) Driver 'sd' needs updating - please use bus_type methods NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bi t) Scanning device for bad blocks Bad eraseblock 1 at 0x00020000 Bad eraseblock 2 at 0x00040000 Bad eraseblock 3 at 0x00060000 Creating 5 MTD partitions on "at91_nand": 0x00000000-0x00020000 : "Bootstrap (PART0)" 0x00020000-0x00060000 : "U-Boot (PART1)" 0x00060000-0x00080000 : "U-Boot-env (PART2)" 0x00100000-0x00900000 : "Fact Kernel (PART3)" 0x00900000-0x02900000 : "Fact-Fs (PART4)" usbmon: debugfs is not available at91_ohci at91_ohci: AT91 OHCI at91_ohci at91_ohci: new USB bus registered, assigned bus number 1 at91_ohci at91_ohci: irq 20, io mem 0x00500000 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected usb usb1: New USB device found, idVendor=1d6b, idProduct=0001 usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: Product: AT91 OHCI usb usb1: Manufacturer: Linux 2.6.25 ohci_hcd usb usb1: SerialNumber: at91 Initializing USB Mass Storage driver... usb 1-1: new full speed USB device using at91_ohci and address 2 usb 1-1: configuration #1 chosen from 1 choice usb 1-1: New USB device found, idVendor=0a12, idProduct=0001 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usbcore: registered new interface driver usb-storage USB Mass Storage support registered. 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 udc: at91_udc version 3 May 2006 mice: PS/2 mouse device common for all mice TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 17 RPC: Registered udp transport module. RPC: Registered tcp transport module. drivers/rtc/hctosys.c: unable to open rtc device (rtc0) yaffs: dev is 32505860 name is "mtdblock4" yaffs: passed flags "" yaffs: Attempting MTD mount on 31.4, "mtdblock4" yaffs: restored from checkpoint VFS: Mounted root (yaffs2 filesystem). Freeing init memory: 128K Warning: unable to open an initial console.