Two builds coexisting on the same card is sort of possible
Well, the CFG files are named differently, no need to have separate folders for scripts, maybe a menu option could simply change DISKBOOT.BIN name for next reboot ?
DISKBOOT.BIN -> DISKBOOT.BIT (current build)
DISKBOOT.BI -> DISKBOOT.BIN (alternative build on reboot)
DISKBOOT.BIT -> DISKBOOT.BI
Anyone tried changing filenames, does it work ?
I didn't want to wait for shipping from Adorama so I went shopping at Best Buy for a Sandisk Ultra II 8GB card. $49. WOW!
So I figured I'd tough it out and get another from Adorama anyway: $25.
Then I slept on it and changed my mind.
I now have both CHDK and SDM on both of my cameras. I just change the name of all of the respective files.
I wrote down install instructions. Here they are in clear rough draft. I hope newbs like me like them.
A570IS 101a
using sdminste.exe to install SDM
New Install
Choose Right / Left Camera and 8GB
Quick Format
SDMRight1
SDMRight2
SDMLeft1
SDMLeft2
The installer will automatically load the card.
Switch to Write-Protected / Locked
Done
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After SDM is loaded here is what is on the SDHC:
partition 1: DISKBOOT.BIN file
partition 2: CHDK folder and DCIM folder
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The idea is to load CHDK firmware along with SDM on both cameras. They can be run from the same card by changing the names of the files / folders depending on usage.
Using the sdminste.exe program, swap the partitions to get to partition 2. Then add the prefix to the appropriate folders: either SDM_ or CHDK_ to deactivate them. Remove these prefixes to activate them.
Always keep both cameras loaded / activated with SDM when not in use.
With SDM: The cameras can be turned on in either Play or Record mode. Remember: card is locked.
With CHDk: The camera must be turned on in Play mode to use the Firmware Update load method. Remember: card is unlocked.
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After CHDK is loaded here is what is on the SDHC:
partition 1: DISKBOOT.BIN file, PS.FIR file, UpgradeLog.txt file
partition 2: CHDK folder and DCIM folder
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When the card has both CHDK and SDM installed here is what is on the SDHC:
with CHDK active:
partition 1: DISKBOOT.BIN file, PS.FIR file, UpgradeLog.txt file, and SDM_DISKBOOT.BIN file
partition 2: CHDK folder, DCIM folder, SDM_CHDK folder, and SDM_DCIM folder
with SDM active:
partition 1: DISKBOOT.BIN file, CHDK_PS.FIR file, CHDK_UpgradeLog.txt file, and CHDK_DISKBOOT.BIN file
partition 2: CHDK folder, DCIM folder, CHDK_CHDK folder, and CHDK_DCIM folder
Sf
