I installed Kubuntu on my device /dev/sdc (full disk). After install, it's not possible to boot on the disk (neither /dev/sda nor /dev/sdb), because the boot loader is not installed. To fix the issue, I had to boot on the live CD again, and install grub manually with grub-install. After that, it works like a charm ! Thanks Ben
Hello! Kubuntu bugs are no longer tracked on the KDE bugzilla. Please file bugs for KDE software in Kubuntu against the applicable KDE product, and use launchpad to file bugs for Kubuntu's packaging or installer: https://bugs.launchpad.net/ Thanks!