I use the yaffs from the link: http://husaberg.toby-churchill.com/balloon/linux-2.6.8.1-tcl1/fs/yaffs configure it to the kernel ... name offset size flag ------------------------------------------------ vivi : 0x00000000 0x00020000 0 128k param : 0x00020000 0x00010000 0 64k kernel : 0x00030000 0x001d0000 0 1M+832k root : 0x00200000 0x00200000 0 2M -->>> cramfs usr : 0x00400000 0x03c00000 0 60M -->> yaffs root can be boot with cramfs image... but it seems there is no yaffs support on the board. # cat /proc/filesystems nodev sysfs nodev rootfs nodev bdev nodev proc nodev sockfs nodev binfmt_misc nodev pipefs nodev futexfs nodev tmpfs nodev eventpollfs nodev devpts cramfs nodev ramfs nodev devfs nodev nfs romfs nodev autofs nodev rpc_pipefs # dmesg Linux version 2.6.11 (root@localhost.localdomain) (gcc version 3.4.1) #27 Sun Ma y 8 19:38:45 CST 2005 CPU: ARM920Tid(wb) [41129200] revision 0 (ARMv4T) 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 Machine: SMDK2410 Converting old-style param struct to taglist ATAG_INITRD is deprecated; please update your bootloader. Memory policy: ECC disabled, Data cache writeback CPU S3C2410 (id 0x32410000) S3C2410: core 200.000 MHz, memory 100.000 MHz, peripheral 50.000 MHz S3C2410 Clock control, (c) 2004 Simtec Electronics On node 0 totalpages: 16384 DMA zone: 16384 pages, LIFO batch:4 Normal zone: 0 pages, LIFO batch:1 HighMem zone: 0 pages, LIFO batch:1 Built 1 zonelists Kernel command line: noinitrd root=/dev/mtdblock3 init=/linuxrc console=ttySAC0 irq: clearing pending ext status 00000300 irq: clearing subpending status 00000003 irq: clearing subpending status 00000002 PID hash table entries: 512 (order: 9, 8192 bytes) timer tcon=00000000, tcnt a2c1, tcfg 00000200,00000000, usec 00001eb8 Console: colour dummy device 80x30 selected clock c01ad91c (pclk) quot 26, calc 115740 Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) Memory: 64MB = 64MB total Memory: 62848KB available (1540K code, 343K data, 80K init) Calibrating delay loop... 99.73 BogoMIPS (lpj=249344) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) CPU: Testing write buffer coherency: ok NET: Registered protocol family 16 S3C2410: Initialising architecture NetWinder Floating Point Emulator V0.97 (double precision) VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au) devfs: devfs_debug: 0x0 devfs: boot_options: 0x1 Initializing Cryptographic API Real Time Clock Driver v1.12 S3C2410 RTC, (c) 2004 Simtec Electronics S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2410 s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2410 s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2410 io scheduler noop registered Cirrus Logic CS8900A driver for Linux (Modified for SMDK2410) eth0: CS8900A rev E at 0xe0000300 irq=53, no eeprom , addr: 08: 0:3E:26:0A:5B S3C2410 NAND Driver, (c) 2004 Simtec Electronics s3c2410_nand_probe(c01a26f8) s3c2410-nand: mapped registers at c4a00000 result 1 from 100000000, 0 result 4 from 100000000, 30 result 1 from 100000000, 0 s3c2410-nand: timing: Tacls 10ns, Twrph0 40ns, Twrph1 10ns s3c2410-nand: NF_CONF is 0x8030 initialising set 0 (c0324800, info c0334720) NAND device: Manufacturer ID: 0xec, Chip ID: 0x76 (Samsung NAND 64MiB 3,3V 8-bit ) NAND_ECC_NONE selected by board driver. This is not recommended !! Scanning device for bad blocks Creating 5 MTD partitions on "NAND 64MiB 3,3V 8-bit": 0x00000000-0x00020000 : "vivi" mtd: Giving out device 0 to vivi 0x00020000-0x00030000 : "param" mtd: Giving out device 1 to param 0x00030000-0x001f0000 : "kernel" mtd: Giving out device 2 to kernel 0x00200000-0x00400000 : "root" mtd: Giving out device 3 to root 0x00400000-0x04000000 : "user" mtd: Giving out device 4 to user initialised ok mice: PS/2 mouse device common for all mice NET: Registered protocol family 2 IP: routing cache hash table of 512 buckets, 4Kbytes TCP established hash table entries: 4096 (order: 3, 32768 bytes) TCP bind hash table entries: 4096 (order: 2, 16384 bytes) TCP: Hash tables configured (established 4096 bind 4096) NET: Registered protocol family 1 Reading data from NAND FLASH without ECC is not recommended VFS: Mounted root (cramfs filesystem) readonly. Mounted devfs on /dev Freeing init memory: 80K selected clock c01ad91c (pclk) quot 26, calc 115740 Reading data from NAND FLASH without ECC is not recommended selected clock c01ad91c (pclk) quot 26, calc 115740 selected clock c01ad91c (pclk) quot 26, calc 115740 selected clock c01ad91c (pclk) quot 26, calc 115740 selected clock c01ad91c (pclk) quot 26, calc 115740 selected clock c01ad91c (pclk) quot 26, calc 115740 selected clock c01ad91c (pclk) quot 26, calc 115740 selected clock c01ad91c (pclk) quot 26, calc 115740 # Thanks... -- jeanwelly Email: jeanwelly@gmail.com China