Use legacy boot. The EFI files from calameres installer are missing. Calameres wants to use the Manjaro ones. And they don't work on Debian. There's no fix at this time. Detain 12 has a new installer. Titan will probably adopt it in the next release. We'll see.
To use Legacy boot means i have to make changes in the bios right? But all
my other installs are in efi/uefi so do i have to go to the bios every time i want to run Titan ?? That would not be acceptable to me. I will try to install it again.
You can manually add the EFI files in after the fact. The procedure on this page explains how. How do I boot Debian from an EFI file - Unix & Linux Stack Exchange Titan is build on top of Debian 11. So the same procedures apply. However, if you have multiple distros already installed, and they all have EFI files inserted into grub, this could break them all. Debian 12 will be out in a few months. Titan will move to the Debian 12 base when it does. So if you don't want to risk it, maybe you should just wait for the next one. ¯\_(ツ)_/¯. I know that's a shitty answer. But given the state of the Calemeres installer, there's not many options on the table. I hope to change that in the next release.
ok, THANK YOU for taking the time to respond. I really appreciate it as I really like what i see from Titan . I'll wait til you change it on the next release.
Use legacy boot. The EFI files from calameres installer are missing. Calameres wants to use the Manjaro ones. And they don't work on Debian. There's no fix at this time. Detain 12 has a new installer. Titan will probably adopt it in the next release. We'll see.