ok, ich checked the RAM of my main system yesterday and I found massive damage on one of the RAM modules. Though the bug also occures on my laptop (which is 100% fine), this could be the source of the problem for my main system.
for all of you, check your RAM with Memtest86+ before you install another cd/dvd drive etc. -- [Errno 5] Input/Output Error during Live CD Installation https://bugs.launchpad.net/bugs/245794 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs