greetings again yesterday I received a shiny new server for a client.
It brings 4 x 1 TB SATA disks, is capable of UEFI and I started setting it up. GPT partitioning, small partition(s) for the ESP, some swap, and bigger partitions of type fd=raid for creating 2 mdadm-raids (rootfs and data) with level 6. ok so far. Then I spent some hours fiddling with grub2, gummiboot et al to get that box booting up fine. dracut doesn't assemble the rootfs-raid etc etc ... -> fun What the question is in general: even if I manage to have it booting via UEFI from /dev/sda1 or so ... I still have this single point of failure as the vfat-partitioned ESP is on one physical disk only. I would like to set it up in a way that it boots even when the /dev/sda dies ... Maybe I have to go the BIOS way and have an ext2-boot-raid1 over 4 disks/partitions? I did that on other servers back then. What is the up-to-date and recommended way of achieving this? How do you gentoo-users do these things? I am still at the start with this server and don't mind backing up the rootfs and start from scratch with partitioning ;) Thanks, Stefan