this post was submitted on 20 Jan 2026
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/dev/md127is probably a raid 1 from a previous installation. Assuming you don't need the data on it, you can either delete or ignore it.I'm not familiar with this exact installer, but I have installed Debian a bunch before. Judging by what I'm seeing here, you probably need to do a bit of manual labor. I'm guessing you first create partition tables (usually gpt), then raid partitions, then combine them into a raid, and maybe then put lvm on top of that again, and finally a filesystem. If you're planning to go the lvm route you probably want to create a smaller raid on the start of the disk for
/boot(250-500MB should suffice) separate from the lvm, because last I checked you can't boot from an lvm volume.