Interactively display the contents of the device or filesystem image isoimage. devdump displays the first 256 bytes of the first 2048-byte sector and waits for commands. The prompt shows the extent number (zone) and offset within the extent, and the contents display at the top of the screen.
Search forward for the next instance of the search string.
Search backward within the image.
Search forward within the image.
Prompt for a new search string.
Prompt for a new starting block and go there.