Canon-Cr2 can't save file?

[Gabriel Fonseca Engel]

Binary package hint: magicrescue

I have installed many exifs and everything else. I'm trying to recover 70 CR2 files in a 20Gb partition.
Is there any extra package to be installed for the canon-cr2 recipe to work?

# magicrescue -r canon-cr2 -d /media/disk/Photos/bkp3 /dev/sda1 -M io
i /dev/sda1
Found canon-cr2 at 0x9193000
Cannot decode file /media/disk/Photos/bkp3/000009193000-0.CR2
No output file
Found canon-cr2 at 0x99A3000
Cannot decode file /media/disk/Photos/bkp3/0000099A3000-0.CR2
No output file
Found canon-cr2 at 0xAF0C000
Cannot decode file /media/disk/Photos/bkp3/00000AF0C000-0.CR2
No output file
Found canon-cr2 at 0xB813000
Cannot decode file /media/disk/Photos/bkp3/00000B813000-0.CR2
No output file
Found canon-cr2 at 0xC009000
Cannot decode file /media/disk/Photos/bkp3/00000C009000-0.CR2
No output file
Found canon-cr2 at 0xE802000
Cannot decode file /media/disk/Photos/bkp3/00000E802000-1.CR2
No output file
Found canon-cr2 at 0xFC13000
Cannot decode file /media/disk/Photos/bkp3/00000FC13000-0.CR2
No output file
Found canon-cr2 at 0x10101000
Cannot decode file /media/disk/Photos/bkp3/000010101000-0.CR2
No output file
Found canon-cr2 at 0x11BAB000
Cannot decode file /media/disk/Photos/bkp3/000011BAB000-0.CR2
No output file
Found canon-cr2 at 0x129E2000
Cannot decode file /media/disk/Photos/bkp3/0000129E2000-0.CR2
No output file
Found canon-cr2 at 0x13727000
Cannot decode file /media/disk/Photos/bkp3/000013727000-0.CR2
No output file

magicrescue: killed by signal 2 at offset 0x1E65E690 in file /dev/sda1

---------------------------

Added a printf to extract.c to check which program was being used:

magicrescue-20080803# ./magicrescue -r canon-cr2 -d /media/disk/Photos/bkp3 /dev/sda1
Found canon-cr2 at 0x9193000
Cannot decode file /media/disk/Photos/bkp3/000009193000-0.CR2
dd bs=1024k count=30 of="$1" 2>/dev/null; dcraw -i "$1" || rm -f "$1"
No output file
Found canon-cr2 at 0x99A3000
Cannot decode file /media/disk/Photos/bkp3/0000099A3000-0.CR2
dd bs=1024k count=30 of="$1" 2>/dev/null; dcraw -i "$1" || rm -f "$1"
No output file

The question is... I do have dcraw install in my ubuntu. Still debuging...

[Gabriel Fonseca Engel (gabrielfengel)]

OK.. Kind of understood. Dcraw couldn't process the file and deleted (acording to the command: dcraw -i "$1" || rm -f "$1", "do or die")

I removed the rm -f part, just to save the raw information... Maybe one day I can recover the pictures. Maybe I'll try with ufraw.

=/

Thanks for the program. Simply great!

[Daniel J Blueman (danielblueman)]

This message is output from 'dcraw' [1], used to check for a valid CR2 file - so you have all the right files installed.

If the CR2 files from your camera are normally larger than 30MB, then you'll need to increase this limit in /usr/share/magicrescue/recipes/canon-cr2 - the only other problem here, would be if dcraw can't recognise your CR2 files.

Can you check both cases?

--- [1]

$ strings /usr/bin/dcraw | grep 'Cannot decode file'
Cannot decode file %s

[Gabriel Fonseca Engel (gabrielfengel)]

ufraw didn't budge.. same error.

[Gabriel Fonseca Engel (gabrielfengel)]

Thanks for the help Daniel!
Just set the count to 50... but I don't think I'll recover my files =/

All my best pictures from Dublin!! *snif*

[Daniel J Blueman (danielblueman)]

The key things here are:
 - if your CR2 files are normally <30MB (likely)
and
 - if dcraw normally decodes your CR2 files from that hardware
then the only conclusion, is that the files are corrupted beyond recovery.