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I tried to install 13.04 after downloading and burning on a boot disc, or 12.04 from a disc from a magazine over windows 7 on a netbook but got the following code 

an error occurred, please run Package Manager from the right click menu or apt-get in a terminal to see what is wrong.

The error message was 

Error opening the cache(E:read error - read (5:input/output error), E the Package lists or status file could not be parsed or opened)

When I open 13.04 I get a message

disk drive for /tmp not ready

once the system has final booted up a number of software items don't run and it varies from time to time which don't.

Takkat
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Graham
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  • I had a similar problem and found a solution here:

    http://askubuntu.com/questions/410045/the-package-lists-or-status-file-could-not-be-parsed-or-opened

     – Ben Lansdell Mar 21 '14 at 21:09

1 Answers1

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First make sure that update-manager, synaptic, etc... are all closed and not running somewhere.

Then open a Terminal and enter the following commands:

sudo mkdir /var/lib/apt/lists/partial
sudo dpkg --configure -a
sudo aptitude update
sudo aptitude upgrade
sudo aptitude install -f

After that, retry opening update-manager.

HTH.

Anuj Patel
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  • Thanks for answering - after the first line I am told that it "cannot create directory '/var.....: File exists After the second line I am informed "dpkg: error: unable to access dpkg status area: Read -only file system After the third line I am informed that command not found. – Graham May 10 '13 at 21:13