[9fans] Can't make CD without temporary file

[9fans] Can't make CD without temporary file

[Blake McBride]

Greetings,

I am attempting to create a CD.  I am able to do it just fine
with the following commands:

cdfs -d /dev/sdC1 -m /usr/glenda/cd
disk/mk9660 -9cj -s /usr/glenda/MyApp /usr/glenda/cdimage
cp /usr/glenda/cdimage /usr/glenda/cd/wd/cdimage
rm /usr/glenda/cd/wd
unmount /usr/glenda/cd

The problem is that I don't want to have to create the temporary
image file cdimage.

The example in CDFS(4) states that you can create write to a CD
without the intermediate file with:

disk/mk9660 -9cj -n notice cdproto >cd/wd/foo

but that doesn't work because mk9660 expects a file argument and
doesn't send its output to stdout so > won't work.

I even tried:

disk/mk9660 -9cj -s /usr/glenda/MyApp /usr/glenda/cd/wd/cdimage

in an effort to write directly to the CD but I got:

disk/mk9660: cannot create '/usr/glenda/cd/wd/cdimage': bad mode (use
OWRITE)

But, of course, I am able to:

cp /usr/glenda/cdimage /usr/glenda/cd/wd/cdimage

Any help would be appreciated.

Thanks.

Blake McBride
blake@integra-online.com

Re: [9fans] Can't make CD without temporary file

[FJ Ballesteros]

I don't have the source at hand, but it shouldn't be hard to
change mk9660 to write to stdout when the file argument is not supplied.

You might try that.

hth


Blake McBride ha escrito:
>
> Greetings,
>
> I am attempting to create a CD.  I am able to do it just fine
> with the following commands:
>
> cdfs -d /dev/sdC1 -m /usr/glenda/cd
> disk/mk9660 -9cj -s /usr/glenda/MyApp /usr/glenda/cdimage
> cp /usr/glenda/cdimage /usr/glenda/cd/wd/cdimage
> rm /usr/glenda/cd/wd
> unmount /usr/glenda/cd
>
> The problem is that I don't want to have to create the temporary
> image file cdimage.
>
> The example in CDFS(4) states that you can create write to a CD
> without the intermediate file with:
>
> disk/mk9660 -9cj -n notice cdproto >cd/wd/foo
>
> but that doesn't work because mk9660 expects a file argument and
> doesn't send its output to stdout so > won't work.
>
> I even tried:
>
> disk/mk9660 -9cj -s /usr/glenda/MyApp /usr/glenda/cd/wd/cdimage
>
> in an effort to write directly to the CD but I got:
>
> disk/mk9660: cannot create '/usr/glenda/cd/wd/cdimage': bad mode (use
> OWRITE)
>
> But, of course, I am able to:
>
> cp /usr/glenda/cdimage /usr/glenda/cd/wd/cdimage
>
> Any help would be appreciated.
>
> Thanks.
>
> Blake McBride
> blake@integra-online.com

Re: [9fans] Can't make CD without temporary file

[FJ Ballesteros]

This makes me love that /acme/mail/Mail shows most recent messages
first.
Just used netscape to send mail and made the mistake of suggesting to
look at mk9660 to make it write to stdout, and several messages after
was the right answer from rsc.

sic, sorry.

Russ Cox ha escrito:
>
> > The problem is that I don't want to have to create the temporary
> > image file cdimage.
>
> Sorry, you have to create the temporary file.
> The man page came before the mk9660 rewrite.
> Mk9660 is two passes now, and depends on having
> a seekable file.  This means you can't just write a
> CD on standard output, but it also simplified everything
> about mk9660 enough to do, for example, Rock Ridge
> support.
>
> > The example in CDFS(4) states that you can create write to a CD
> > without the intermediate file with:
> >
> > disk/mk9660 -9cj -n notice cdproto >cd/wd/foo
> >
> > but that doesn't work because mk9660 expects a file argument and
> > doesn't send its output to stdout so > won't work.
>
> Fixed the man page.  Whoops.
>
> Russ

Re: [9fans] Can't make CD without temporary file

[Russ Cox]

> The problem is that I don't want to have to create the temporary
> image file cdimage.

Sorry, you have to create the temporary file.
The man page came before the mk9660 rewrite.
Mk9660 is two passes now, and depends on having
a seekable file.  This means you can't just write a
CD on standard output, but it also simplified everything
about mk9660 enough to do, for example, Rock Ridge
support.

> The example in CDFS(4) states that you can create write to a CD
> without the intermediate file with:
>
> disk/mk9660 -9cj -n notice cdproto >cd/wd/foo
>
> but that doesn't work because mk9660 expects a file argument and
> doesn't send its output to stdout so > won't work.

Fixed the man page.  Whoops.

Russ