SOLVED: PowerShot SX 110 is won't boot

m*sh

17

« on: 29 / June / 2010, 18:16:29 »

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Hi everyone,

I can't get my SX 110 to boot from the card.
That's what I've done:
[Note: my card is /dev/sdb1]

I made 2 partitions
1.) create a     16 MB   FAT 16   bootable
2.) Rest    3.73 GiB   FAT32
I format partitions respectively
mkdosfs -n CANON_CHDK /dev/sdb1
mkdosfs -n CANON /dev/sdb2

Put data in Bootrecord

[I noticed, that the actual filename is DISKBOOT.BIN and not - as stated in the FAQ - "BOOTDISK", so I altered this - I tried it also the other way round but it didn't work either]

echo -n DISKBOOT | dd bs=1 count=8 seek=64 of=/dev/sdb1

then I mount the device
   mount /dev/sdb1 /media/CANON_CHDK
   cd /media/CANON_CHDK

   unzip /media/work/work/10_canon/chdk.bin/sx110is-100b-0.9.9-908-full.zip
   cd ..
   umount /dev/sdb1 /media/CANON_CHDK
After that I remove the card from the reader, make it read-only and put it into the cam.
When I turn it on in Display-Mode I can access the option to upgrade to CHDK Firmware.
Pressing <ALT> will bring the CHDK Menu.
But after shutting down the cam - or switching to record mode - No CHDK stuff anymore.

Any help is appreciated.

« Last Edit: 04 / July / 2010, 02:22:37 by m*sh »

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reyalp

14118

Re: PowerShot SX 110 is won't boot

« Reply #1 on: 29 / June / 2010, 19:37:52 »

Note that on a 4gb card, you can just format the whole thing FAT16, which will be much more convenient (at the expensive of wasting a bit of space)

Quote

[I noticed, that the actual filename is DISKBOOT.BIN and not - as stated in the FAQ - "BOOTDISK", so I altered this - I tried it also the other way round but it didn't work either]

No. The file is called DISKBOOT.BIN. The canon bootable flag is the literal string "BOOTDISK"

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Don't forget what the H stands for.

m*sh

17

Re: PowerShot SX 110 is won't boot

« Reply #2 on: 04 / July / 2010, 02:22:13 »

THANKs, with 1 partition it worked.
-m*sh-

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