After some research I have selected /boot with 1GB size as the GRUB. I have had no more "outside of disk" problems. I do have a 2TB hard drive for Windows 10, where the GRUB is located. My ubuntu hard drive is only 1TB. However, booting from it would require me to boot Windows as secondary to ubuntu.
Cairo-dock works great. Nemo is masrvelous.Synaptic is fast. I have found a programs, that make ubuntu much more safe to use: Timeshift by teejee2008 aka Tony George. If anything fatal happens to ubuntu. That us "human" users cannot fix, one boots to ubuntu by install disk, installs Timeshift, and restores ubuntu before the fatal flaw. All good and well, right? No, as soon as one thinks ubuntu is safe to use again, a new problem arises. Any new kernel install puts ubuntu into an infinite loop. I am stuck with 4.13.0-22-generic kernel. Any attempt to update to the next kernel or any other kernel results in the infinite loop. One must reboot, choose the previous kernel, delete the newer kernel, and decline to update to 4.13.0-24-generic kernel or newer. There is plenty of room in /boot, so that is not the problem. GO FISH! Thank you, BavarianPH -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1737106 Title: attempt to read or write outside of disk To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1737106/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs