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Сергей
Joined: 26 Aug 2005
Posts: 7876
Location: Soft-Center
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 Posted: Sun Apr 13, 2008 20:54 Post subject: Example_1 - Image Check
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Image check
Open Disk.image in Image_Explorer:
Purpose
- Checking correct data structures
- Saving files
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Сергей
Joined: 26 Aug 2005
Posts: 7876
Location: Soft-Center
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Posted: Sun Apr 13, 2008 20:54 Post subject:
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Basic structures
Using the mouse, select FAT32, FAT1, FAT2, Root.
The sector editor will move to the address of the selected structure.
Check the data in the sector is as it should be.
Also, check, there are no gaps in FAT tables.
Just as we did when looking for a mix.
Especially at blocks boundaries.
For this image, the block size is 0x20000.
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Сергей
Joined: 26 Aug 2005
Posts: 7876
Location: Soft-Center
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Posted: Sun Apr 13, 2008 20:55 Post subject:
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Comparison of FAT tables
Right click on FAT32. Compare tables. You will see:
| Code: | Compare tables
--------------
End |
It means that both copies of the FAT are identical.
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Сергей
Joined: 26 Aug 2005
Posts: 7876
Location: Soft-Center
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Posted: Sun Apr 13, 2008 20:55 Post subject:
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Directories check
Right Click on FAT32. Check_Dirs:
| Code: | Check Dirs
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1 2 3 4
Dir 0x000fd400 Must be 0x000fd400 Diff +0x00000000 Claster 0x000003
Dir 0x01194c00 Must be 0x01194c00 Diff +0x00000000 Claster 0x004261
Dir 0x01fd0800 Must be 0x01fd0800 Diff +0x00000000 Claster 0x007b50 |
Where:
1 - the Address where the directory is found
2 - the Address where the directory should be
3 - ([1] - [2])
4 - the Cluster number where the directory should be
Diff is equal to zero.
This means the directory is in the correct position.
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Сергей
Joined: 26 Aug 2005
Posts: 7876
Location: Soft-Center
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Posted: Sun Apr 13, 2008 20:56 Post subject:
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Files check
Right Click on Root. Check_Files:
| Code: | Files 784 good 783 broken 0
Dirs 3 good 3 broken 0 |
All file headers and directories are ok.
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Сергей
Joined: 26 Aug 2005
Posts: 7876
Location: Soft-Center
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Posted: Sun Apr 13, 2008 20:56 Post subject:
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Random inspection
Look through directories.
Check files.
The coloured circles next to the files mean:
| Code: | Green - File header OK
Red - File header corrupt
Grey - unknown file type
Dark red - File address beyond image boundary |
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Сергей
Joined: 26 Aug 2005
Posts: 7876
Location: Soft-Center
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Posted: Sun Apr 13, 2008 20:57 Post subject:
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Saving files
Right Click on Root. Save
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