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Morpheus
Registered: Feb 2004
Posts: 152 |
Get files back on a formatted disk
I wonder, what was the name of that program were you could get files back on a formatted disk. I need to rescue some files before they fade away... |
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Krill
Registered: Apr 2002
Posts: 2969 |
that only works with soft-formatted disks, that is, those formatted without id, where just the dir track is initialized. check the latest dir-master versions, there are some with that feature. |
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drake
Account closed
Registered: Dec 2002
Posts: 207 |
yep, dirmaster 7 is one of those programs that could help you. it was an extended version done by erol/tempest as far as i can remember. |
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Oswald
Registered: Apr 2002
Posts: 5086 |
heh one of those tools saved my life when coding plastic kiss, I've almost lost my workdisk due to a fuckin buggin track 18. but be aware, you wont get the filenames back :) back then took me about an hour to find out what files are what, and that same got still lost. |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
afaik only the first block of the directory is deleted so you only have lost the names of the first 8 files. |
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Oswald
Registered: Apr 2002
Posts: 5086 |
not in my case, it was not about formatting the disk, but loosing the whole dir due to buggy track 18. |
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Ben
Account closed
Registered: Feb 2003
Posts: 163 |
A bit of a coarse method, I admit, but you can ofcourse always trace back the files by following the Track/Sector links and making an inventory of those.. |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
@Oswald: c'mon, you're always able to read a few sectors on a buggy track if it hasn't been formatted. |
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Oswald
Registered: Apr 2002
Posts: 5086 |
graham: didnt had the nerves to search for a t/s monitor and play with it. I have not much experience in that. |
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Morpheus
Registered: Feb 2004
Posts: 152 |
dirmaster 7 - okey - thanks. I'll check that one out. Where can I find it?
Though I remember some other program from the past that I THINK could rescue files with a disk that had been formatted with the N0: way. |
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TDJ
Registered: Dec 2001
Posts: 1879 |
Dir make-up (DMU) by the Whiz-zards association is the program I always used to do stuff like this. Best damn disk-manager/editor ever. |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
the best dir editor is a machine code monitor able to read and write sectors. no restrictions :) |
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iopop
Registered: Dec 2001
Posts: 317 |
Disk Wizard 2.0 by H.J Rottkemper also have the deformat function.
That is if you have softformatted the disk. Far too many times Ive done @n:<filename> instead of @s:<filename> and all times disk wizard have saved me. |
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Morpheus
Registered: Feb 2004
Posts: 152 |
Quote: Disk Wizard 2.0 by H.J Rottkemper also have the deformat function.
That is if you have softformatted the disk. Far too many times Ive done @n:<filename> instead of @s:<filename> and all times disk wizard have saved me.
Can you send me the program?
TDJ: Can you send me Dir make-up? |
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Krill
Registered: Apr 2002
Posts: 2969 |
Quote: the best dir editor is a machine code monitor able to read and write sectors. no restrictions :)
yet, nobody could be arsed to search and analyze the t/s links of a whole disk manually to restore a directory =) |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
@Krill: there is atleast one program for that. i remember an old 1986 basic tool called "backtracker" or something. it took ages... i remember speeding it up with a basic compiler, but still it used standard serial routines so it was very slow. |
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TDJ
Registered: Dec 2001
Posts: 1879 |
If I remember correctly, dir make up did just that .. analyzed the disk and came up with a number of possible files. I still have 1 or 2 disks with the results of such an action .. |
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j0x
Registered: Mar 2004
Posts: 215 |
I also did a program like that recently, after some tamper-protected program cleared a dir-sector on me. I was lazy and did it in C to work on a .d64 image on a PC.
IIRC it tells you the first block (i.e. an unreferenced block) of each chain, and reports any chain collisions (i.e. two or more sectors each referring to the same sector). I believe sector loops (of arbitrary length) are also detected. On a disk containing colliding sector chains, any program that doesn't allow the user to pick the correct chain is likely to fail.
Since it was done as a quick hack to save me the trouble of going through the disk manually, it's not particularly user friendly.... (*ahem*) E.g. you have to reconstruct the dir sector(s) yourself from the info provided by the program.
If you're able to convert the disk to a .d64 file, it may be of some use, though. |
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iopop
Registered: Dec 2001
Posts: 317 |
Quote: Can you send me the program?
TDJ: Can you send me Dir make-up?
You can grab Disk Wizard 2.0 here;
http://www.ftp.funet.fi/pub/cbm/c64/diskutil/directory/Disc%20W.. |
