Testdisk and finding partitions - what do the numbers mean?
Posted: 27 Apr 2020, 15:21
Relating to my earlier post i've had testdisk analyze the disk where i accidentally reformatted one partition.
In Windows i had 4 partitions:
A: HPTOOLS - 150MB
C: WIN7 - 512GB
D: WIN10 - 404GB
R: RECOVERY - 14GB
I accidentally reformatted C while trying to reinstall win7 but quit that process immediately.
The linux liveCD im currently using finds the new C, mounts it, and can access a system volume information folder in it, but doesnt display A:
/dev/sda1 512GB
/dev/sda2 14GB
/dev/sda3 404GB
TestDisk however shows..... something very different for the disk in question:
NTFS - NTFS - 14GB Primary Bootable, green(R: most likely)
Linux - ext3 - 20MB Primary, green(?)
Linux - ext3 - 20MB Primary, green (?)
Linux - ext4 - 30GB Logical, green (??????)
Linux - ext3 - 16GB Logical, green (???????)
Linux - ext4 - 30GB No characteristic, gray (?????????)
NTFS - NTFS - 404GB No characteristic, gray (D: most likely)
The first numbers for the location.... whatever they might be, Sector, Cylinder, etc i guess, there's not much documentation for this version of the GUI .... don't overlap and seem to correlate to the size of the partition. There are two significant gaps between partitions
1. starts at 0 1 1 and ends at 1847 254 63
2. starts at 34827 88 14
4. ends at 42090 162 56
5. starts at 61770 110 37
Neither of these however look as big as the gap for the 7. 404GB partition starting at 68737 0 1 and ending at 121600 254 63
The easiest explanation for this would be that instead of the actual C partition which has been reformatted and is now accessible but empty the utility somehow finds nonsense linux partitions in its place? Maybe from emulators i had installed?
The question here is what the numbers in the UI refer to.
And the colors.
And the "Recover" thing in the i fo for the linux partitions.
This is sortof a sidetrack to my actual thread but does this mean that the partition i actually want to recover is in that big empty space filled with garbage linux partitions?
In Windows i had 4 partitions:
A: HPTOOLS - 150MB
C: WIN7 - 512GB
D: WIN10 - 404GB
R: RECOVERY - 14GB
I accidentally reformatted C while trying to reinstall win7 but quit that process immediately.
The linux liveCD im currently using finds the new C, mounts it, and can access a system volume information folder in it, but doesnt display A:
/dev/sda1 512GB
/dev/sda2 14GB
/dev/sda3 404GB
TestDisk however shows..... something very different for the disk in question:
NTFS - NTFS - 14GB Primary Bootable, green(R: most likely)
Linux - ext3 - 20MB Primary, green(?)
Linux - ext3 - 20MB Primary, green (?)
Linux - ext4 - 30GB Logical, green (??????)
Linux - ext3 - 16GB Logical, green (???????)
Linux - ext4 - 30GB No characteristic, gray (?????????)
NTFS - NTFS - 404GB No characteristic, gray (D: most likely)
The first numbers for the location.... whatever they might be, Sector, Cylinder, etc i guess, there's not much documentation for this version of the GUI .... don't overlap and seem to correlate to the size of the partition. There are two significant gaps between partitions
1. starts at 0 1 1 and ends at 1847 254 63
2. starts at 34827 88 14
4. ends at 42090 162 56
5. starts at 61770 110 37
Neither of these however look as big as the gap for the 7. 404GB partition starting at 68737 0 1 and ending at 121600 254 63
The easiest explanation for this would be that instead of the actual C partition which has been reformatted and is now accessible but empty the utility somehow finds nonsense linux partitions in its place? Maybe from emulators i had installed?
The question here is what the numbers in the UI refer to.
And the colors.
And the "Recover" thing in the i fo for the linux partitions.
This is sortof a sidetrack to my actual thread but does this mean that the partition i actually want to recover is in that big empty space filled with garbage linux partitions?