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So I downloaded Ubuntu 12.10 on a Dell mini Inspiron 910. Had problems with wifi, but I bought a wireless adapter and so I fixed that. But when I try installing flash, with sudo apt-get install flashplugin-installer gsfonts-x11 it gives me:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package gsfonts-x11 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Unable to locate package flashplugin-installer
E: Package 'gsfonts-x11' has no installation candidate

which I don't really understand.

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3 Answers 3

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Try this; just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below:

sudo apt-get install ubuntu-restricted-extras

That will install flash, and other goodies.

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  • Just got E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
    – Louis
    Aug 28, 2013 at 21:16
  • Reboot, and try again.
    – Mitch
    Aug 29, 2013 at 4:51
  • Rebooting helped a lot but it didn't work still ` Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs` Got a lot of other stuff but I noticed that come up a few times, maybe has something to do with me using a usb as a flash drive to run the computer or something (still not great with computers). Then I got E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution) so I tried that and got E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
    – Louis
    Aug 29, 2013 at 22:42
  • E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
    – Louis
    Aug 29, 2013 at 22:42
  • @Louis you should use sudo apt-get -f install
    – Braiam
    Aug 29, 2013 at 23:31
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try installing gsfonts-x11 package

Update the package index:

sudo apt-get update

Install gsfonts-x11 deb package:

sudo apt-get install gsfonts-x11
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  • Again, as I tried the first I got E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/ E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? and again for the second E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
    – Louis
    Aug 28, 2013 at 21:18
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In the end I just had to do sudo reboot then sudo apt-get update then go into Software Centre and download flash there.

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