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My Ubuntu 12.04 suddenly rebooted after working great for a month. I checked and saw that all my downloads,installed programs and bookmarks are gone. It looks like a fresh installation all together.

I wanted to check what the issue is but I can't become root:

guest-EelhlO@paddington-MS-7327:~$ sudo -s
sudo: unable to change to sudoers gid: Operation not permitted
sudo: setresuid() [0, 0, 0] -> [117, -1, -1]: Operation not permitted

I cannot even ping in the terminal:

guest-EelhlO@paddington-MS-7327:~$ ping
ping: icmp open socket: Permission denied

How can I resolve this?

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1 Answer 1

up vote 1 down vote accepted

You are logged in as a guest (guest-EelhlO@paddington-MS-7327). Login within your username and you will find your data. The guest account will not allow you to use sudo for instance.

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