Installation problem. Read-only file system?

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http://askubuntu.com – When I was installing, I got this error from ubuntu. (dialog) The installer encountered an error copying files to the hard disk: [Errno 30] Read-only file system: '/target/tmp' This is often due to a faulty hard disk. It may help to check whether the hard disk is old and in need of replacement, or to move the system to a cooler environment. If you need more infos, contact me. (HowTos)