From: camerons@NAD.3Com.COM (Cameron Spitzer 764-6339) Subject: double compress, was Re: Problems with files at tsx-11 Date: 1 Dec 1992 03:31:00 GMT
In article 1eta5vINN6q0@corax.udac.uu.se, sverkerw@csd.uu.se (Sverker Wiberg) writes:
>cvadr021@vmsb.is.csupomona.edu writes:
>> I'm having problems uncompressing some files from tsx-11. For
...
>
>Uh, do you remember to use binary mode before fetching the files on
>ftp? If you fetch binary files in ascii mode you will lose the high
>bit in each byte. If you do use binary mode, I have no idea, except
>that tsx-11 always have worked for me.
Are you using ftpmail or ftp? Telling tsx to compress files, via ftpmail,
does NOT work if they are already compressed. The doubly compressed files cannot
be reliably recovered. I wasted about a week figuring this one out.
It is not in the ftpmail help, and (of course) it is not in any FAQ.
Uncompress on SunOS thought the corrupted files were just fine. My first clue
was that some of the recovered MCC files didn't fit on a 1.44 MB floppy.
Perhaps this is a problem with compress itself.
Cameron