Hello.

I am JUN from seoul Korea

I have any question for using flash filesystem(ext2).

I use intel assabet board.

and I used kernel-2.4.1

. patch-2.4.1-rmk1

. diff-2.4.1-rmk1-np2

and "make xconfig" checked

Memory Technology Devices (MTD)

---> Memory Technology Device (MTD) support (*) ----> check
and other item check....

  File systems
   Journalling Flash File System (JFFS) support (EXPERIMENTAL) (*)      ---->check
            ----------- this item is not relation to ext2 filesystem.

and kernel source modified.
linux/init/main.c
#ifdef CONFIG_MTD
  { "mtdblock", 0x1f00 },
  { "mtd2", 0x1f02 },               -------------------> add
#endif

linux/drivers/mtd/sa1100-flash.c
static struct mtd_partition assabet_partitions[] = {
  { offset: 0,   size: 0x00040000, },
  { offset: MTDPART_OFS_APPEND, size: 0x007c0000, },           -------------> modify
  { offset: MTDPART_OFS_APPEND, size: MTDPART_SIZ_FULL }
};

next, I compiled kernel

"make dep"

"make zImage"

"make modules"

"make modules_install"

and download kernel & ramdisk

after booting, I try make filesystem.

"cat /proc/mtd"

      dev:    size   erasesize name
      mtd0: 00040000 00040000 "<NULL>"
      mtd1: 007c0000 00040000 "<NULL>"
      mtd2: 01800000 00040000 "<NULL>"

"mknod /dev/mtd2 b 31 2"

"mke2fs /dev/mtd2"

But not made filesystem with error.

message when make filesystem is:

#mke2fs /dev/mtd2
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
6144 inodes, 24576 blocks
1228 blocks (5.00%) reserved for the super user
First data block=1
3 block groups
8192 blocks per group, 8192 fragments per group
2048 inodes per group
Superblock backups stored on blocks:
8193

Writing inode tables: 0/31/32/3done
Writing superblocks and filesystem accounting information:

mtdblock: erase of region [0x840000, 0x40000] on "<NULL>" failed

end_request: I/O error, dev 1f:02 (mtdblock), sector 32768

mtdblock: erase of region [0x840000, 0x40000] on "<NULL>" failed

end_request: I/O error, dev 1f:02 (mtdblock), sector 32776

. .

mtdblock: erase of region [0x840000, 0x40000] on "<NULL>" failed

end_request: I/O error, dev 1f:02 (mtdblock), sector 32784

mtdblock: erase of region [0x840000, 0x40000] on "<NULL>" failed

end_request: I/O error, dev 1f:02 (mtdblock), sector 32792

What is problem?

I try kernel compile, modified and downloading in the last 4days.

But I don't making flash filesystem.

please Help me.

I am sorry that my poor english.

Thank you for read this mail.

Best regard JUN.