On Jul 22, 2006, at 4:45 AM, Jens Seidel wrote:
Hi Rick,
On Sat, Jul 22, 2006 at 03:55:28AM -0400, Rick Thomas wrote:
Hmmm... That doesn't square with my recent experience. I've had
aptitude hang on me a couple of times with messages saying
(approximately -- from memory) "can't read cdrom". If you want, I
can explore this behavior in more detail and present a differential
diagnosis. But I've presented my case for not putting the 'deb
cdrom' into sources.list for netinst or businesscard installs, and I
still think it's a good idea regardless of whether it's a corner case
or not.
I think we all talk about completely different things.
You wrote:
Some testing also noted that /etc/apt/sources.list includes the
install CD as a source. I don't think this is a good idea -- it
means that I have to hang onto the install CD and put it in the drive
every time I want to apt-get something. That's just silly.
Inserting the CD into the drive all the time you want to install
something is indeed silly. I completely agree with you!
But it should not happen! You should be requested for the CD only
in the
case if a wanted package you otherwise would fetch from net is
available
on it. This saves your time and possibly money.
Let me explain it in more detail:
There are at least two ways to add a CD to APT:
1) By using apt-cdrom which adds a deb cdrom:[...] stanza to
sources.list
2) By accessing a mounted CD: "deb file:/mnt/etch-dvd1"
The first method determines all packages on the CD and writes the
package list to your hard disk. You will never need to reinsert the
CD until you request packages which are available on it.
By using the second method you will need the CD indeed all the time
you
start apt-get update, otherwise you get an error. Please also note
that
APT has currently a few bugs which make this method sometimes fail
(e.g.
#377424).
It's maybe also possible that apt just doesn't find you CD drive
because
the device file mapping changed and confuses because of this????
Maybe you should explain your problem in more detail.
Thanks for the helpful explanation. I believe that the installer
did (1) for me. I did not do (2) myself, and I do not believe the
installer did either.
Hmmm... Does it matter that I first did a "bare bones" install ( by
un-checking the default "desktop" task)? Then when I later went back
to pick up something that is normally installed as part of the
Desktop task, it tried to go to the CDrom for it. I was not
expecting it to go for the CDrom, and did not have it in the drive --
so it hung. (Does hanging if the CD is not inserted count as a bug?)
I guess that makes sense. Do you agree?
Enjoy!
Rick
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