[TriLUG] cpio checksum errors

[Paul Boyle via TriLUG]

Another observation, the 0x1 seems to be there most of the time, but
not always.  Here are a couple of other examples

0x3eccb6b9f, should be 0xeccb6b9f
0x22c2f58b8, should be 0x2c2f58b8
0x20fc65d03, should be 0xfc65d03

Thinking about it a bit. If the problem really was related to
versioning differences in cpio, then it would stand to reason that all
the files would exhibit checksum errors.

Paul

On Fri, 28 Apr 2017 10:37:42 -0400
Ron Kelley <rkelleyrtp at gmail.com> wrote:

> Interesting, the errors you listed below have the “0x1” prefix as
> opposed to the “0x” prefix from the source files.
> 
> I wonder if the cpio command has different output between versions?
> 
> 
> > On Apr 28, 2017, at 10:34 AM, Paul Boyle via TriLUG
> > <trilug at trilug.org> wrote:
> > 
> > Hi,
> > 
> > I bought myself a new x86_64 laptop and installed OpenSUSE LEAP
> > 42.2 on it.  I used cpio (using the crc format) to archive my /home
> > directory from my old computer writing the archive to an external
> > hard drive.  I then took the external hard drive plugged it into
> > the new computer copied the archive file (approximately 23 GiB) to
> > the new /home directory and unpacked it.
> > 
> > Out of about 70,000 files, I got 107 checksum errors. Typically it
> > looked like this (sorry for the line wrap):
> > 
> > cpio: boyle/Pictures/2008-08-02/2088-08-24/MVI_0075.AVI: checksum
> > error (0x1ce87d5a6, should be 0xce87d5a6)
> > cpio: boyle/Pictures/2008-08-02/2088-08-24/MVI_0034.AVI: checksum
> > error (0x1337929d6, should be 0x337929d6)
> > cpio: boyle/Pictures/2008-08-02/2088-08-24/MVI_0032.AVI: checksum
> > error (0x1c23725ea, should be 0xc23725ea)
> > 
> > I  haven't checked all of the files.  There were some PDFs which
> > gave errors and those opened in okular OK and I didn't notice any
> > gross errors.
> > 
> > I am concerned about these errors, but I don't know if they have any
> > real effect.  What is other people's experience and how should I
> > try to deal with this?
> > 
> > Thanks for any suggestions.
> > 
> > Paul 
> > 
> > -- 
> > Paul D. Boyle, Ph. D.
> > Manager, X-ray Facility
> > Department of Chemistry
> > Western University
> > London, ON N6A 5B7
> > Canada
> > GPG Fingerprint: 8ECE 516D 9046 FE83 4A46  7E8E D720 555D 8CC3 EC6B
> > -- 
> > This message was sent to: Ron Kelley <rkelleyrtp at gmail.com>
> > To unsubscribe, send a blank message to trilug-leave at trilug.org
> > from that address. TriLUG mailing list :
> > http://www.trilug.org/mailman/listinfo/trilug Unsubscribe or edit
> > options on the web	:
> > http://www.trilug.org/mailman/options/trilug/rkelleyrtp%40gmail.com
> > Welcome to TriLUG: http://trilug.org/welcome
> 



-- 
Paul D. Boyle, Ph. D.
Manager, X-ray Facility
Department of Chemistry
Western University
London, ON N6A 5B7
Canada
GPG Fingerprint: 8ECE 516D 9046 FE83 4A46  7E8E D720 555D 8CC3 EC6B
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 490 bytes
Desc: OpenPGP digital signature
URL: <http://www.trilug.org/pipermail/trilug/attachments/20170428/deeb59a3/attachment.pgp>