Re: Md5sum missmatch after transfer from windows to RH9

[Rick Stevens <rstevens vitalstream com>]

michael Alexander wrote:
> Hi,
>
>   I downloaded 5 of the 6 ISOs from the redhat ftp site to my windows xp
> workstation (as well as a md5sum.exe to check them) and they all checked out
> fine.  Then I transferred them to my RH9 system (I need to rebuild the
> kernel to do an install onto some troublesome hardware) using the Zmodem
> transfer within SecureNetTerm 5.3.4.0.  All the file sizes match, but the
> checksums do not match anymore.  I downloaded the 6th ISO from a closer
> mirror site directly to the RH9 system, and its md5sum checks out fine.  (I
> used the zmodem transfer because ftp wasn't running on the server)
>
>   Should I be concerned about this?  I am all up to date with antivirus on
> my workstation, the RH9 system was just built on Tuesday and has no direct
> connection to the outside world.

Yes, I'd be concerned.  The ISOs aren't correct unless the MD5 checksums
match up.  The trick with zmodem is that it will truncate null bytes at
the end of a file.  The .iso files need the null padding (they MUST be
a multiple of 2048 bytes in length--the block size of a CD-ROM).

Your best bet is to retransfer them using FTP or burn them to CDs off
the Windows machine (with the correct MD5 checksums).
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- Rick Stevens, Senior Systems Engineer     rstevens vitalstream com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
- Millihelen, adj: The amount of beauty required to launch one ship. -
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