How to I get rid of this Update Manager error message?

[Peter Williams]

Hello All Fellow Australian Ubuntu Users,

I'm a Ubuntu 8.04 Hardy Heron user.

I have recently upgraded my hardware and had the computer shop which built
this machine install Ubuntu HH on my behalf. I did originally supply the
computer shop with a cd-rom containing the OS (eg Linux Ubuntu 8.04 Hardy
Heron) however, somehow between my giving the cd-rom to the shop and the
shop's technician using it, it was scratched and rendered un-usable.
Fortunately the computer shop had another disk of Ubuntu HH ... so to cut a
long story short... the computer shop used their cd-rom not mine (since my
copy was scratched).

I kept a lot of files (all files?) from the Home Folder and Desktop of my
previous computer and over the last few weeks since I have been using my
system I have been gradually installing applications which were missing. (I
hope that makes sense!)

All of the above is just background info.

The reason for this email msg is that when the icon for updating my system
appears (yellow triangle with an exclamation mark inside) -- when I click on
it the Update Manager open correctly... then I get the error message which I
have pasted into this msg (see below). Also, if it makes it any clearer, I
have attached a png format image of the error window (see
"update_manager_error2.png -- attached).

Can someone please help me to get rid of this error. Note that when I click
on the "OK" button (?if memory serves me correctly) -- I can then proceed to
download the new updates and patches successfully.


Pasted below is the error message:
---start of error message

Could not download all repository indexes

The repository may no longer be available or could not be contacted because
of network problems. If available an older version of the failed index will
be used. Otherwise the repository will be ignored. Check your network
connection and ensure the repository address in the preferences is correct.

Failed to fetch cdrom:[Ubuntu 8.04 _Hardy Heron_ - Release i386
(20080423)]/dists/hardy/main/binary-i386/Packages.gz
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update
cannot be used to add new CD-ROMs

Failed to fetch cdrom:[Ubuntu 8.04 _Hardy Heron_ - Release i386
(20080423)]/dists/hardy/restricted/binary-i386/Packages.gz
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update
cannot be used to add new CD-ROMs

Some index files failed to download, they have been ignored, or old ones
used instead.

---end of error message.

Also, attached is a 37KB .png image of the error window (which contains the
error message pasted above.

-- 
Fond Regards,
Peter Eric (aka 'pew') WILLIAMS
{ Hobart, Tasmania, Australia }

My free website is:
http://pewtas.googlepages.com (or) http://tinyurl.com/yuyejs

(please visit my free website and let me know what you think about it.)
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