GNU TAR vs NATIVE AIX TAR Post: 302975619

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Operating Systems AIX GNU TAR vs NATIVE AIX TAR Post 302975619 by bakunin on Thursday 16th of June 2016 05:56:27 AM

06-16-2016

Registered User

Quote:

Originally Posted by filosophizer

What could be the problem / issue ?

Taking the other threads you opened into account which all seem to pertain to the same problem it is quite clear: your system is - for unknown reasons (probably some problem during package installation, but not enough data to verify that) - missing some of the shared libraries the GNU-tar binary relies on. This is why it can't do what it is supposed to do and this is why it can't process your tar-file.

It works like this: GNU-tar calls upon a function "somefunction()", but doesn't contain the code for it. Instead it relies on this code being stored somewhere else on the system (a so-called "shared library", because such files usually contain not only the code for this one but for many such functions). The normal proceedings would now be for tar to load the code representing this function from the library and then execute it. But somehow, in your case, it can't - and because this "somefunction()" is vital to the function of tar - it doesn't get done anything.

So far the general analysis of your problem. Now we need to find out what exactly is holding tar from loading the code for the function from the shared lib. There are several possible reasons:

1 - tar doesn't know where the lib is: any program is guided to the place where it can find the libraries it needs by the variable "LIBPATH" and/or "LD_LIBRARY_PATH". The format is the same as the PATH variable: a list of directories separated by a colon: /some/dir1:/some/dir2:.....

2 - tar can't read the library: maybe the user tar is started with isn't allowed to read the library - check and make sure the "r"-flag is set for world for shared libraries.

3 - The library is really missing: in this case you need to install it somehow. tar itself doesn't care how the library gets there, so install a package or even just copy the file (for test purposes! You don't want that to be a lasting state.) All this means you have to find out which libaries are missing.

I hope this helps.

bakunin

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git-tar-tree

GIT-TAR-TREE(1) 						    Git Manual							   GIT-TAR-TREE(1)

NAME

       git-tar-tree - Create a tar archive of the files in the named tree object

SYNOPSIS

       git tar-tree [--remote=<repo>] <tree-ish> [ <base> ]

DESCRIPTION

       THIS COMMAND IS DEPRECATED. Use git archive with --format=tar option instead (and move the <base> argument to --prefix=base/).

       Creates a tar archive containing the tree structure for the named tree. When <base> is specified it is added as a leading path to the files
       in the generated tar archive.

       git tar-tree behaves differently when given a tree ID versus when given a commit ID or tag ID. In the first case the current time is used
       as modification time of each file in the archive. In the latter case the commit time as recorded in the referenced commit object is used
       instead. Additionally the commit ID is stored in a global extended pax header. It can be extracted using git get-tar-commit-id.

OPTIONS

       <tree-ish>
	   The tree or commit to produce tar archive for. If it is the object name of a commit object.

       <base>
	   Leading path to the files in the resulting tar archive.

       --remote=<repo>
	   Instead of making a tar archive from local repository, retrieve a tar archive from a remote repository.

CONFIGURATION

       tar.umask
	   This variable can be used to restrict the permission bits of tar archive entries. The default is 0002, which turns off the world write
	   bit. The special value "user" indicates that the archiving user's umask will be used instead. See umask(2) for details.

EXAMPLES

       git tar-tree HEAD junk | (cd /var/tmp/ && tar xf -)
	   Create a tar archive that contains the contents of the latest commit on the current branch, and extracts it in /var/tmp/junk directory.

       git tar-tree v1.4.0 git-1.4.0 | gzip >git-1.4.0.tar.gz
	   Create a tarball for v1.4.0 release.

       git tar-tree v1.4.0^{tree} git-1.4.0 | gzip >git-1.4.0.tar.gz
	   Create a tarball for v1.4.0 release, but without a global extended pax header.

       git tar-tree --remote=example.com:git.git v1.4.0 >git-1.4.0.tar
	   Get a tarball v1.4.0 from example.com.

       git tar-tree HEAD:Documentation/ git-docs > git-1.4.0-docs.tar
	   Put everything in the current head's Documentation/ directory into git-1.4.0-docs.tar, with the prefix git-docs/.

GIT

       Part of the git(1) suite

Git 1.7.10.4							    11/24/2012							   GIT-TAR-TREE(1)