Ubuntu 18.04 is installed on /dev/sdb2, grub bootloader on /dev/sdb1 and Windows 10 on a separate SSD /dev/sdc1. I tried update-grub and os-prober but grub would not find it. How can I add bitlocker encrypted Windows 10 entry to grub bootloader?
I have multiple hard drives and multiple partitions on each hard drive. On my second hard drive I installed only Ubuntu 20.04 with full disk encryption. During the installation of Another OS I destroyed the GRUB configuration and the encrypted Ubuntu won't boot anymore. I tried to boot it via grub rescue, but I could only boot the non-encrypted OSs. Now I try to add an entry via Grub-customizer, but I can't figure out how to do so correctly. This is what I tried:
Can anyone help please and tell me how to configure it correctly? It is definitely on /dev/sdb, but not sure if sdb1 or sdb2. I don't know how the default installation of Ubuntu partitiones the drives.
During the installation process I can check the box Install third-party software for graphics and Wi-Fi hardware and additional media formats. [...] Some is proprietary. I think there might be some drivers then that are proprietary. Also, if I install apps manually, there might be some that are not open-source.
However, which other parts of Ubuntu 20.04 are proprietary by default?
As far as I now, if you install an app with sudo apt install app you can then remove it via sudo apt remove app or sudo apt purge app. I think the difference is that the second method will also remove all application dependencies, like application settings. If I install an application, let's say visual studio code via Ubuntu-Software-Center, save some settings within vscode and then uninstall it via Ubuntu-Software, the settings are stored. I can see that when I reinstall it via Ubuntu-Software-Center, but I definitely don't want that! If I remove an application it shall be gone and free all the memory that it took. I don't see an option to really purge installed applications - How can I remove applications that I installed via Ubuntu-Software-Center, including all dependencies?