Error while running tar
I am writing, well actually enhancing, a script to do a daily backup of important data on my PC to a second hard drive. I wish to tar my home directory to a single file - and will probably use gzip as well. So I decided to work out the correct tar syntax in a terminal first - here is what happened.
I opened a terminal window I cd to a directory not part of my home directory I issued the command Quote:
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I scrolled back through the list of files in the terminal window and do not see any error messages. I guess the question is... how do I determine what file tripped up the tar process? TIA, Ken |
ext4 related??
install the debuginfo package to see more clearly...gdb |
Thanks for the quick reply amani. I am running all ext3 file systems so I do not think that is the issue.
Can you please tell me more about the debuginfo package. Is it available for Ubuntu - I do not find it in Synaptic nor do I find any debug packages associated with tar. I have googled for debuginfo and it appears to be a RedHat/Fedora package(?) Ken |
the debuginfo packages are used with gnu debugger... but since you do not have ext4, then do not bother.
The problem is elsewhere |
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Suggest : Do a separate 'tar -cvf' with the " .netrc " files to test, what is happening. ..... |
I just did a tar of my .netrc file as suggested. It worked fine, no error and the .netrc file is in the tar file as expected.
I am guessing that the file which caused the problem is the one which tar tried to process after .netrc. However, I have no idea what that file would be. Is tar reading files by timestamp, name alphabetically, inode number??? Ken |
The tar command should tell you the error that occured (you may need to look back through the output). Usually this happens when a file changes or gets deleted while tar is trying to archive it. This is pretty common when archiving large directory and is nothing to worry about if that's what happened.
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I have again looked line for line through the output. I see nothing to indicate a problem. I do note that the tar file is about 8.8 MB and my home directory is about 90 GB. I am not using compression so obviously the process is dying before processing all of the files under /home/ken.
That I have to worry about :( Ken |
I changed my command thusly
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Ken |
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