If you'd like to see the contents of an image, you can use the dumpifs utility. The output from dumpifs might look something like this:
Offset Size Name 0 100 Startup-header flags1=0x1 flags2=0 paddr_bias=0x80000000 100 a008 startup.* a108 5c Image-header mountpoint=/ a164 264 Image-directory ---- ---- Root-dirent ---- 12 usr/lib/ldqnx.so.2 -> /proc/boot/libc.so ---- 9 dev/console -> /dev/ser1 a3c8 80 proc/boot/.script b000 4a000 proc/boot/procnto 55000 59000 proc/boot/libc.so.3 ---- 9 proc/boot/libc.so -> libc.so.3 ae000 7340 proc/boot/devc-ser8250 b6000 4050 proc/boot/esh bb000 4a80 proc/boot/ls c0000 14fe0 proc/boot/data1 d5000 22a0 proc/boot/data2 Checksums: image=0x94b0d37b startup=0xa3aeaf2
The more -v ("verbose") options you specify to dumpifs, the more data you'll see.
For more information on dumpifs, see its entry in the Utilities Reference.