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dumpchk - a tool to find and fix the start of dumps

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Offline reyalp

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dumpchk - a tool to find and fix the start of dumps
« on: 12 / September / 2008, 00:48:32 »
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I wrote this while trying to get a full tree of primary.bin files. Maybe someone else will find it useful.

Description:
Find the code normally found at the start of ROM.
Default mode detects dryos or vxworks sig at any offset.
If -fix is given, re-write the dump file after removing anything before the start sig

If -vxworks or -dryos is given, just check that the corresponding sig is found at the start of the dump, and print a message/return status
 -quiet will suppress the message and only return status.

If you have a tree full of dumps you want to check/fix, use find, e.g.
Code: [Select]
  find . -path ./*sub/* \! -path *.svn* -type d -exec dumpchk '{}/primary.bin' \;
will check primary.bin in each of the platform/sub directories, skipping .svn, reporting missing or zero sized files.

You can use -fix with the above command if you feel lucky.

Note that -fix DOES NOT MAKE ANY BACKUP, and is NOT PARTICULARLY SAFE.

The two start sigs work for all dumps I have tested, which includes almost every camera supported by chdk and some that aren't

Don't forget what the H stands for.

 

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