Unzipping large file: bad zipfile offset (local header sig)
I am unzipping a file with approximately 3 million single text files - the zip-file itself is around 12 GB in size. It's not multi-part - it's just one large zip file btw. I do not have the original data - all I have is the zipped file which means I cannot try to zip the content again (just so you know).
The problem is that as I unzip, at some point, I get
..
file #1207565: bad zipfile offset (local header sig): 9570252890
file #1207566: bad zipfile offset (local header sig): 9570254437
file #1207567: bad zipfile offset (local header sig): 9570255044
file #1207568: bad zipfile offset (local header sig): 9570256141
file #1207569: bad zipfile offset (local header sig): 9570256786
file #1207570: bad zipfile offset (local header sig): 9570257539
..
This does not seem to affect every subfolder or file respectively in the archive but for a lot of them the process seems to fail.
At this point it's hard for me to guess if the packing or the unpacking is the problem
Are there any workarounds I could try on my side?
unzip
asked Apr 17 '18 at 8:00
displaynamedisplayname
2131416
add a comment |
I am unzipping a file with approximately 3 million single text files - the zip-file itself is around 12 GB in size. It's not multi-part - it's just one large zip file btw. I do not have the original data - all I have is the zipped file which means I cannot try to zip the content again (just so you know).
The problem is that as I unzip, at some point, I get
..
file #1207565: bad zipfile offset (local header sig): 9570252890
file #1207566: bad zipfile offset (local header sig): 9570254437
file #1207567: bad zipfile offset (local header sig): 9570255044
file #1207568: bad zipfile offset (local header sig): 9570256141
file #1207569: bad zipfile offset (local header sig): 9570256786
file #1207570: bad zipfile offset (local header sig): 9570257539
..
This does not seem to affect every subfolder or file respectively in the archive but for a lot of them the process seems to fail.
At this point it's hard for me to guess if the packing or the unpacking is the problem
Are there any workarounds I could try on my side?
unzip
asked Apr 17 '18 at 8:00
displaynamedisplayname
2131416
2
Suggestion online and via man pages is to use:zip -F original.zip --out fixed.zipand then try to extract fixed.zip as normal...
– andrew.46
Apr 17 '18 at 9:10
@andrew.46 On it - although I had to "try harder" using-FFin order to make it run at all - what I can see though are warning and things like "skipping this signature .." - I guess that means those files are not going to make it intofixed.zip?
– displayname
Apr 17 '18 at 10:22
@andrew.46 Okay, I tried it twice - unfortunately this does not work. It ends up with the same error messages. :/
– displayname
Apr 17 '18 at 10:28
add a comment |
I am unzipping a file with approximately 3 million single text files - the zip-file itself is around 12 GB in size. It's not multi-part - it's just one large zip file btw. I do not have the original data - all I have is the zipped file which means I cannot try to zip the content again (just so you know).
The problem is that as I unzip, at some point, I get
..
file #1207565: bad zipfile offset (local header sig): 9570252890
file #1207566: bad zipfile offset (local header sig): 9570254437
file #1207567: bad zipfile offset (local header sig): 9570255044
file #1207568: bad zipfile offset (local header sig): 9570256141
file #1207569: bad zipfile offset (local header sig): 9570256786
file #1207570: bad zipfile offset (local header sig): 9570257539
..
This does not seem to affect every subfolder or file respectively in the archive but for a lot of them the process seems to fail.
At this point it's hard for me to guess if the packing or the unpacking is the problem
Are there any workarounds I could try on my side?
unzip
asked Apr 17 '18 at 8:00
displaynamedisplayname
2131416
I am unzipping a file with approximately 3 million single text files - the zip-file itself is around 12 GB in size. It's not multi-part - it's just one large zip file btw. I do not have the original data - all I have is the zipped file which means I cannot try to zip the content again (just so you know).
The problem is that as I unzip, at some point, I get
..
file #1207565: bad zipfile offset (local header sig): 9570252890
file #1207566: bad zipfile offset (local header sig): 9570254437
file #1207567: bad zipfile offset (local header sig): 9570255044
file #1207568: bad zipfile offset (local header sig): 9570256141
file #1207569: bad zipfile offset (local header sig): 9570256786
file #1207570: bad zipfile offset (local header sig): 9570257539
..
This does not seem to affect every subfolder or file respectively in the archive but for a lot of them the process seems to fail.
At this point it's hard for me to guess if the packing or the unpacking is the problem
Are there any workarounds I could try on my side?
unzip
unzip
asked Apr 17 '18 at 8:00
displaynamedisplayname
2131416
asked Apr 17 '18 at 8:00
displaynamedisplayname
2131416
asked Apr 17 '18 at 8:00
displaynamedisplayname
2131416
asked Apr 17 '18 at 8:00
displaynamedisplayname
2131416
asked Apr 17 '18 at 8:00
displaynamedisplayname
2131416
2131416
2
Suggestion online and via man pages is to use:zip -F original.zip --out fixed.zipand then try to extract fixed.zip as normal...
– andrew.46
Apr 17 '18 at 9:10
@andrew.46 On it - although I had to "try harder" using-FFin order to make it run at all - what I can see though are warning and things like "skipping this signature .." - I guess that means those files are not going to make it intofixed.zip?
– displayname
Apr 17 '18 at 10:22
@andrew.46 Okay, I tried it twice - unfortunately this does not work. It ends up with the same error messages. :/
– displayname
Apr 17 '18 at 10:28
add a comment |
2
Suggestion online and via man pages is to use:zip -F original.zip --out fixed.zipand then try to extract fixed.zip as normal...
– andrew.46
Apr 17 '18 at 9:10
@andrew.46 On it - although I had to "try harder" using-FFin order to make it run at all - what I can see though are warning and things like "skipping this signature .." - I guess that means those files are not going to make it intofixed.zip?
– displayname
Apr 17 '18 at 10:22
@andrew.46 Okay, I tried it twice - unfortunately this does not work. It ends up with the same error messages. :/
– displayname
Apr 17 '18 at 10:28
2
2
Suggestion online and via man pages is to use:
zip -F original.zip --out fixed.zip and then try to extract fixed.zip as normal...– andrew.46
Apr 17 '18 at 9:10
Suggestion online and via man pages is to use:
zip -F original.zip --out fixed.zip and then try to extract fixed.zip as normal...– andrew.46
Apr 17 '18 at 9:10
@andrew.46 On it - although I had to "try harder" using
-FF in order to make it run at all - what I can see though are warning and things like "skipping this signature .." - I guess that means those files are not going to make it into fixed.zip?– displayname
Apr 17 '18 at 10:22
@andrew.46 On it - although I had to "try harder" using
-FF in order to make it run at all - what I can see though are warning and things like "skipping this signature .." - I guess that means those files are not going to make it into fixed.zip?– displayname
Apr 17 '18 at 10:22
@andrew.46 Okay, I tried it twice - unfortunately this does not work. It ends up with the same error messages. :/
– displayname
Apr 17 '18 at 10:28
@andrew.46 Okay, I tried it twice - unfortunately this does not work. It ends up with the same error messages. :/
– displayname
Apr 17 '18 at 10:28
add a comment |
1 Answer
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I ran into the same problem - a huge zip file with a lot of files - and unzip choked trying to unpack it. A possible solution is to use java archiver. Just unpack your stuff with jar xvf file.zip
answered Oct 19 '18 at 2:04
DariaDaria
1
add a comment |
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I ran into the same problem - a huge zip file with a lot of files - and unzip choked trying to unpack it. A possible solution is to use java archiver. Just unpack your stuff with jar xvf file.zip
answered Oct 19 '18 at 2:04
DariaDaria
1
add a comment |
I ran into the same problem - a huge zip file with a lot of files - and unzip choked trying to unpack it. A possible solution is to use java archiver. Just unpack your stuff with jar xvf file.zip
answered Oct 19 '18 at 2:04
DariaDaria
1
add a comment |
I ran into the same problem - a huge zip file with a lot of files - and unzip choked trying to unpack it. A possible solution is to use java archiver. Just unpack your stuff with jar xvf file.zip
answered Oct 19 '18 at 2:04
DariaDaria
1
I ran into the same problem - a huge zip file with a lot of files - and unzip choked trying to unpack it. A possible solution is to use java archiver. Just unpack your stuff with jar xvf file.zip
answered Oct 19 '18 at 2:04
DariaDaria
1
answered Oct 19 '18 at 2:04
DariaDaria
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answered Oct 19 '18 at 2:04
DariaDaria
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answered Oct 19 '18 at 2:04
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Suggestion online and via man pages is to use:
zip -F original.zip --out fixed.zipand then try to extract fixed.zip as normal...– andrew.46
Apr 17 '18 at 9:10
@andrew.46 On it - although I had to "try harder" using
-FFin order to make it run at all - what I can see though are warning and things like "skipping this signature .." - I guess that means those files are not going to make it intofixed.zip?– displayname
Apr 17 '18 at 10:22
@andrew.46 Okay, I tried it twice - unfortunately this does not work. It ends up with the same error messages. :/
– displayname
Apr 17 '18 at 10:28