I should have just copied the files as they were for fuck's sake, I feel like throwing myself out the window for the atrocity 7zip has done.
Before reinstalling the OS I made a 11gb ~ backup archive and moved it to the external hdd. The archiving process was not interrupted in any way. Now the archive is unusable, it gives either of these messages: "Cannot open x.7z as archive" or "Is not archive" (fucking russians).
Of course I tried the "solutions" offered in the 7z faq but that guy can't explain for shit in english and I just don't get it. Took my issue to a tech support forum, to no avail.
I am DESPERATE to get the files back so PLEASE PLEASE help me /g/ents.
Here's the archive in hex editor.
>>54447292
Did you properly unmount the external USB drive or did you just pull the cord? This is the exact reason why I never compress backups btw. Try doing a disk check for errors. You can also try removing the .7z extension and opening it with 7z file manager.
>>54447421
I didn't unmount it? It's external so it's plugged it an all the time because I have the whole music library, and yes I ran disk check, it has no errors and have never had trouble with it.
Maybe some enlightened anons can chime in on these issues, but how do I find the end header in the archive? I also tried splitting the corrupt archive into 1098 volumes hoping it will actually extract but to no avail. I am really desperate...
>>54447530
you should have purchased winzip.
>backup.rar.7z
wut
>>54447593
I have never had any issues archiving so far
>>54447292
Avg Alex bait
>>54447604
that's because I tried opening it with winrar
Does it list files?
>>54447762
No, I can't open it at all.
>>54447292
Probably your RAM is not working properly and this fucked the archive when you created it or your HDD is defect. If you used compression you are pretty much fucked. If you just used the "save" option in 7zip you could probably restore it.
>>54447798
I did change my RAM but I ran a memtest and it all turned out ok, and windows did not have trouble with it (or the motherboard)
>>54447292
oh yeah this shit
i had a skyrim backup when my SSD almost broke (inb4 get out to v)
it was about 11 gb too and got corrupted too :(
>>54447292
This is what TAR is for ya dunce.
How can compression fuck up the files so badly to the point the program can't extract? I mean, the whole archive is 11 gb, surely I can salvag at least some files out of it, right?
In fact, fuck it, is there any PAID service that can take care of this mess?
>>54447292
Looks like you learned a few things!
1. Generate a md5 hash of your file to verify that transferring it didn't fuck it up.
2. Always make sure that you can actually get data out of your backups.
Better luck next time, senpai.
http://www.7-zip.org/recover.html
How do I make sense out of this? It's so poorly explained...
>>54447733
that's not how it works
your error is between the chair and keyboard
Did you make an integrity check after copying to the external HDD?
at least an md5 hash?
>>54447873
>How can compression fuck up the files so badly to the point the program can't extract?
Do a little research on how compression works.
If the archieve is damaged and there's no additional repair data the archiever has no idea which file would probably decompress fine and which is fubar
>>54447292
upload the file and I will fix it for you
sorry op but im more inclined to think it's windows 10
All I want is to rule out all possibilities before calling it quits and learning from this mistake.
>>54447851
>needing to backup a 11gb game
it's >2016 nigga how slow is your internet?
what is the point of compressing a game? so you dont have to download it later and it takes less space when not using?
Never done much of it myself and seems could come in handy now that I have 2 ssd's
>>54448157
i'm guessing it probably had all his mods and configuration too
maybe saves as well?
>>54448179
oh, that makes sense. i don't play bad games so i wouldn't know much about the subject.
>>54448211
>windows problems
>>54447733
you so tarded
>>54447530
>and yes I ran disk check, it has no errors and have never had trouble with it.
I don't believe you.
