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

[Lisa Milne]

APT is trying to find the installation CD to check for updates... it's
not finding it so it reports an error. Just disable the cdrom in
software sources.


Go to System-->Administration-->Software Sources

enter password

uncheck the box next to "Hardy Herron CDRom" (or whatever it is: toward
the bottom of the window)

click close

click reload when asked

It should all work now.

On Sat, 2008-06-28 at 16:23 +1000, Peter Williams wrote:
> 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.)