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I have big problem with my server. It is not starting the OS. Now I am using Ubuntu by booting from the DVD to copy all data in the server. But, I cannot copy one file which is around 11 GB. That file is very important.

I believe I may be unable to copy this file because it is larger than 4.3 GB.

How can I copy this big file?

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Use an external harddrive –  Tachyons Jun 28 '12 at 9:31
what is file system of the disk your are copying to? –  Web-E Jun 28 '12 at 10:02
What is the error message? Why can't you copy this file? Why do you believe it has to do with the size of the file? –  ohno Jun 28 '12 at 16:18
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2 Answers

try with cpio :

cpio -dump destination < origin
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can you give me for example this type –  Tonytruong Jun 28 '12 at 9:51
cpio -dump /some/mount/point < you_big_file.ext –  Aurelien Jun 28 '12 at 9:53
ex : i have 2 volume with name new and old, now i want to copy file new/data/idocweb.nfs to old –  Tonytruong Jun 28 '12 at 10:04
your destination is then new/data/idocweb.nfs and the origin is old/data/idocweb.nfs. –  Aurelien Jun 28 '12 at 10:08
origin is new/data/idocweb.nfs destination is old. file idocweb.nfs is database form lotus note. it has 11Gb –  Tonytruong Jun 28 '12 at 10:12
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You might want to use the command rsync for this. Many backup systems are based on it.

rsync -av from to

Just exchange "from" with the name of the file and "to" with the directory where you want to copy the file to.

It is very usefull for incremental backup and have been ported to different OS:es. If you want to make a backup of a directory, you just use the directory instead of "from". For more information, you could try the online manual pages. Just use these commands

man rsync
man cpio

or even

man man

Good luck.

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man man O.o that's messing with my mind –  jackweirdy Jun 28 '12 at 16:10
i want to copy the file in volume OLD with folder IBM/data/idocweb.nfs to destination USB HDD. This file idocweb.nfs have 11Gb. What can i do? –  Tonytruong Jun 29 '12 at 2:48
someone help me –  Tonytruong Jun 29 '12 at 11:44
jackweirdy, you must have a man page for the man view command to. And no, there are no man page for men and women. :) Tonytruong, have you read the man page? Yes, you can copy large files with rsync, it's what it was written to do. So it should be no problem. Just do as we described cpio and rsync here. Use rsync -av and just add the path to the file idocweb.nfs and the directory where you find tha USB HDD (you might find it under /media/ directory). You have not given enough information to help you more. Like where the HDD is and where you find OLD (also under /media/?) –  Anders Jun 29 '12 at 17:30
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