SDHC memory card, how make 2 partitions ?

top_nullus

2

« on: 26 / December / 2009, 01:37:29 »

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Hello,

escuse me for my poor english and mistake.

I have SX1-IS and a 8Go SDHC card.
How can I install CHDK ?

I try with a 256Mo SD card and CHDK works fine, but it is too small capacity.

I can't format my 8Go SDHC card in fat, too big.
I read that someone make a small partition 3Mo in FAT format to install CHDK and make an other partition 4Go in fat32 for picture, and I understand that SDHC use automatically the bigger patition to save picture. But I don't remember where on the CHDK website. Does I understand well ?

If my understand is good, I'm not able to make 2 partitions on my 8Go SDHC card, can you explain me "how to" ?
I try with "active parition manager" a free soft for windows, but the second partition have a number attribution name drive, not a letter. It does not work under windows and in the SX1-IS.

« Last Edit: 26 / December / 2009, 10:13:09 by top_nullus »

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reyalp

14113

Re: SDHC memory card, how make 2 partitions ?

« Reply #1 on: 26 / December / 2009, 01:50:53 »

See http://chdk.wikia.com/wiki/Bootable_SD_card

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Don't forget what the H stands for.

fe50

3152
IXUS50 & 860, SX10 Star WARs-Star RAWs

Re: SDHC memory card, how make 2 partitions ?

« Reply #2 on: 26 / December / 2009, 05:18:21 »

Hello & welcome, top_nullus !

Under MS Windows you can use the sdminste.exe, that's the small installer app from the SDM - you'll find it on the SDM Homepage in the "Common files" package...
When using the sdm installer you should always double check the drive letter before you press any button !

Quote from: fe50 on 13 / July / 2009, 07:42:13

Get the SDM Installer: download the SDM common_files.zip package and unzip all the files to an empty folder on your hard disc
Insert the SD card in the card reader, start the sdminste.exe from the downloaded package
in the SDM installer select your card drive (drive letter)
press "Swap partitions" and follow the instructions on the screen
! always wait 10 seconds before you press any button
! first do what the message boxes tells you (remove SD card / re-insert SD card), wait 10 seconds, then click the OK buttons
! after you remove or re-insert the card, always wait 10 seconds, then check always whether the correct drive letter is selected
close the SDM installer; the partition with your images now should be the first one...
...so now you can access your files on the SD card work with the Windows explorer as usual

--> To swap back the partitions again, repeat step 3 to 8

On Windows XP (32bit versions only) you can also use a special, modified hard disc driver for your card reader to access the drive like a hard disc...http://mind-fields-ahead.blogspot.com/2008/04/canon-s5-is-chdk-hack-step-by-step.html

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-->FIRMWARE DUMPS<-- * Manual * Lua * me

top_nullus

2

Re: SDHC memory card, how make 2 partitions ?

« Reply #3 on: 26 / December / 2009, 10:12:06 »

@ reyalp :
thank you, I read the answers, I need use step 4, but with SX-IS is impossible ...

for me the good solution was given by fe50.

@fe50 :
YES ! it's ok and work fine ! It's so great

with sdminste.exe, first time the software purpose one or two partitions. I choise two.
It's important waiting 10 secondes each time.
After I use CardTriks to format, make bootable (I'm not sure it's necessary for SX1-IS) and install CHDK.
At last I copy sdminste.exe on each SDHC partition, using sdminste.exe for switching partition, to be sure can read anywhere on any computer all partitions.

I try the possibility to make under windows XP, 2 partitions on my 8Go SDHC card, it's easy to "self made" a special driver, but it's work only on the computer with this "update" of registry, it's difficult to install CHKD beacause CardTriks don't works with "local disk", sometime SX -IS don't start or don't find CHDK !

I suggest to every body use fe50 1er solution ...

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