Re: [cobalt-developers] cmu export issues with tar

[Herb Rubin <herbr@xxxxxxxxxxxx>]

All,

Extraction did not work. This is how I found out in the first place.
I tried an import on a different Raq 4 I have.

Herb


On Fri, 2003-05-02 at 07:00, Anders wrote:
> Jeff Bilicki wrote:
> 
> >> Since this is the first time I ever used these files,
> >> I have a funny feeling the cmuExport never created the tars properly.
> >> I have many files that are broken that it dumped into a directory
> >> on my raq 4. They were not mangled by ftp.
> > 
> > I have reports that GNU Tar does not read symlinks properly if they are
> > created
> > with the Tar.pm perl module.   It does not means that archive is broken, but
> > the stardard Tar cannot read it properly.  I am currently looking into this
> > issue and hopefully will have some more information soon.
> 
> It seems like Archive::Tar (as used by the CMU utility) writes
> absolute symlinks in a somewhat different fashion than GNU tar does ?
> 
> It seems like it can extract (x) them properly,
> but listing (t) the archive "skips to next header".
> 
> When listing with the "ptar" utility (available from CPAN),
> http://search.cpan.org/src/SRZ/Archive-Tar-0.20/ptar
> all the files are listed with no such errors...
> 
> Maybe it would work better for restoring your files, too ?
> (if you need to expand the files outside of the CMU itself)
> 
> --anders
> 
> PS. Other differences seems to be whether directories are
>     listed with a trailing slash or not, and whether symlinks
>     are created with the same permission when extracting...
>     (not that permissions on symlinks should matter, but)
> 
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-- 
Herb Rubin                 Pathfinders Software
herbr@xxxxxxxxxxxx         http://www.pfinders.com
phone: 650-692-9220        fax:   650-692-9250