Le 19/07/2017 à 18:58, Hans a écrit :
The text gui offered me MBR, /dev/sda1 (mounted to /boot) and /dev/sda5 (mounted to /), then I choose mbr and got a red screen, with the very useful information "The grub bootloader could not be installed".
You can get more useful information in the installer log console (one of the ttyN virtual consoles), or in the installer logs in /var/log.