You need to uncompress the image file before burning it to the
disc. winzip (for windows) will do this, also 'gzip -d' or 'gunzip'
in unix.
Clint
On Sat, 25 May 2002, Jerome H. Fine wrote:
> >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 Sun May 26 2002 - 07:38:27 BST