QEMU 1.0 monitor - type 'help' for more information
(qemu) Checking for a new Ubuntu release

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Get:1 Upgrade tool signature [198 B]

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Get:2 Upgrade tool [1,195 kB]

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Fetched 1,196 kB in 0s (0 B/s)
authenticate 'raring.tar.gz' against 'raring.tar.gz.gpg' 
extracting 'raring.tar.gz'
WARNING: Failed to read mirror file