lianli dump # ls
WAG54GV2-AU_AnnexA_ETSI_v1.00.39_000_code.bin  mtd0_from_serial  squashfs
lianli dump # file squashfs 
squashfs: Squashfs filesystem, little endian, version 1.0, 3418560 bytes, 431 inodes, blocksize: 32768 bytes, created: Wed Jan 26 14:51:50 2005
lianli dump # mount -t squashfs -o loop squashfs /mnt/cdrom/  
mount: wrong fs type, bad option, bad superblock on /dev/loop0,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

lianli dump # dmesg | tail
[drm] Loading R200 Microcode
spurious 8259A interrupt: IRQ15.
SQUASHFS error: zlib_fs returned unexpected result 0xfffffffd
SQUASHFS error: Unable to read cache block [340d9d:1df2]
SQUASHFS error: Unable to read inode [340d9d:1df2]
SQUASHFS error: Root inode create failed
SQUASHFS error: zlib_fs returned unexpected result 0xfffffffd
SQUASHFS error: Unable to read cache block [340d9d:1df2]
SQUASHFS error: Unable to read inode [340d9d:1df2]
SQUASHFS error: Root inode create failed
lianli dump # dmesg | grep -i squashfs
Squashfs 2.2 (released 2005/07/03) (C) 2002-2005 Phillip Lougher
SQUASHFS error: zlib_fs returned unexpected result 0xfffffffd
SQUASHFS error: Unable to read cache block [340d9d:1df2]
SQUASHFS error: Unable to read inode [340d9d:1df2]
SQUASHFS error: Root inode create failed
SQUASHFS error: zlib_fs returned unexpected result 0xfffffffd
SQUASHFS error: Unable to read cache block [340d9d:1df2]
SQUASHFS error: Unable to read inode [340d9d:1df2]
SQUASHFS error: Root inode create failed