Hi, the answer is no, it doesn't prevent the system from booting. Both if I press and if I don't press any key - system continue to boot up, but showing some other error messages before the background appears when it asks me for username and password. I didn't have this error when I installed Xenial first time at the beginning of February, it appeared later after some updates (I'm not sure 100% but I think after kernel updates).
** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553687 Title: Lenovo Y700-17ISK Boot Error: Failure writing sector 0x21c8800 to 'hd0' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553687/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs