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I have followed directions to install Ubuntu 12.04 on VirtualBox.

Trying to start the machine gives me the following error:

buffer i/o error on device zram0 .. and Ubuntu does not open.


I have tried re-installing Ubuntu as a new virtual machine.

Can someone help?

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This may be bug #1217189. Try running with more virtual RAM for the guest, or try to install without a swap partition. –  Takkat Sep 29 '13 at 20:58

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