https://jeltsch.org/en/tags/installer/Recent content in Installer on Michael’s DomainHugoen-usCopyright © 2002 - 2026 Michael Jeltsch.Fri, 24 Jul 2026 00:18:18 +0300https://jeltsch.org/en/bsd_and_linux/Fri, 10 Jun 2016 00:00:00 +0000https://jeltsch.org/en/bsd_and_linux/<p>I am used to the fact that a Linux installer honours a pre-existing install of Windows and offers to setup the computer with a dual-boot option during installation. Vice-versa no Windows installer honours any other pre-exisiting OS. Therefore I was surprised that when I tried to install Ubuntu 16.04 on my PFSense box (FreeBSD), the Ubuntu installer did not even see that a BSD install exists on the drive. I chose the &ldquo;erase all&rdquo; option, but when I rebooted after the installer has finished, the system went straight into PFSense without giving me any option to select Ubuntu. I guess the boot loader had not been touched by the Ubuntu installer. I booted from a live Ubuntu USB stick, reformatted the drive with fdisk and wrote zeros to the boot loader:<code>dd if=/dev/zero of=/dev/sda bs=512 count=1</code>Then I repeated the install and everything was fine. However, my PFSense installation was lost…</p>