Ubuntu booting problem on mini6410: can't open /r/dev/console

mJeff
Hi,

I have a problem running Ubuntu from a SD card. During the boot process I
got the following message: 
-------------------------------
/init: line 103: can't open /r/dev/console: no such file
Kernel panic - not syncing: Attempted to kill init!
-------------------------------
and the board stopped loading Ubuntu.
The last few lines of messages at Hyper terminal are:
-------------------------------
Freeing init memory: 1412K
FAT: utf8 is not a recommended IO charset for FAT filesystems, filesystem
will b
e case sensitive!
losetup: /dev/loop0: No such file or directory
bio too big device loop0 (2 > 0)
EXT3-fs (loop0): error: unable to read superblock
mount: mounting /dev/loop0 on /r failed: Invalid argument
mount: mounting /sdcard on /r/sdcard failed: No such file or directory
1Wire touchscreen OK
/init: line 103: can't open /r/dev/console: no such file
Kernel panic - not syncing: Attempted to kill init!
[<c0178c44>] (unwind_backtrace+0x0/0xe4) from [<c05159c8>]
(panic+0x58/0x174)
[<c05159c8>] (panic+0x58/0x174) from [<c018aeb0>] (do_exit+0x68/0x5e4)
[<c018aeb0>] (do_exit+0x68/0x5e4) from [<c018b6f0>]
(do_group_exit+0x90/0xc4)
[<c018b6f0>] (do_group_exit+0x90/0xc4) from [<c018b734>]
(sys_exit_group+0x10/0x
18)
[<c018b734>] (sys_exit_group+0x10/0x18) from [<c01735e0>]
(ret_fast_syscall+0x0/
0x30)
one_wire_status: 2
-------------------------------

I would appreciate any help!
Thanks!