".gz" files

From: Jerome H. Fine <jhfinepw4z_at_compsys.to>
Date: Sat May 25 20:20:32 2002

>Doc wrote:

> > I need some help. Jay West has kindly posted the file
> > "rt11freewarev2.iso.gz" at:
> > http://www.classiccmp.org/PDP-11/RT-11/freeware-CDS/images/
> > "rt11freewarev2.iso.gz" is about 171 Mbytes in size. It is my
> understanding that
> > the full size file "rt11freewarev2.iso" is exactly 671,088,640 bytes in
> size which
> > is the CD for the RT11 Freeware CD produced by Tim Shoppa. However, when
> > the download of the "rt11freewarev2.iso.gz" file is complete, I end up
> with a file
> > that is 687,282,673 bytes which is different in size and can NOT be
> identical to
> > the full size (and correct - Tim Shoppa used to have the full size image
> at his
> > site and I downloaded it before it was changed to a ".bz2" image) image of
> the
> > actual CD.
> An iso file has a certain amount of overhead to it. A 687,282,673 byte
> file wouldn't be out of line for a 650M CD.
> I'd try burning it to a CDRW and see if it flies before I got very
> worried.

Jerome Fine replies"

I finally had an hour today and did a "Burn Image" to a CDRW from the
"rt11freewarev2.iso.gz" file (687,282,673 bytes) that was the result of the
download from the classiccmp site. Unfortunately, Nero Burning under
Windows 98 made an exact duplicate of the file to the CD and the result
is therefore, obviously hopeless, as far as what is actually needed to set
up the correct ISO file structure on the CD, let alone the correct RT-11
file structure in RT-11 partitions 13 to 19.

So I am again back to square ONE! The ".gz" files at the classiccmp
site do NOT behave when I do the download since the uncompress
occurs during the download. Under Netscape 4.78/Windows 98, I
click the menu item "Save link as ..." and follow through by Save
after I select the directory into which to place the downloaded file.
But I don't end up with the actual file from the classiccmp site. Rather
that expanded file is the result which "Nero Burning" just copies to
a CD which ends up being useless.

Any other suggestion? I am getting a bit desperate - well maybe not
desperate, but I am really confused and perplexed.

Sincerely yours,

Jerome Fine
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Received on Sat May 25 2002 - 20:20:32 BST

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