Does booting a live USB cause writes to occur to it?

Posted by InkBlend on Ask Ubuntu See other posts from Ask Ubuntu or by InkBlend
Published on 2012-03-03T02:21:44Z Indexed on 2012/04/11 17:41 UTC
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11.10

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live-usb

I know that Ubuntu will not and can not write to a live CD-R/DVD+-R when it is booting from it, as it is a read-only medium. However, the procedure (at least on the data level) for running Ubuntu off an optical disc is different from a USB drive, which is usually write-enabled. if I make a live USB, turn off persistent files, and boot from it, will any data be written to the USB drive (e.g. settings, error logs, temporary files)? Or will Ubuntu just read from it, nothing else?

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