Hello again,
At last I have some time to carry on with this. The Debian installer is installed and running but I have a question about partitioning.
The three partitions for /boot, / and swap I am happy I have set up correctly, as follows:
* RAID1 device #0 1.0GB ext3 /boot
* RAID1 device #1 5.1GB ext3 /
* RAID1 device #2 1.0 GB swap swap
But the large partition, with all my data on it, I am not sure about.
It shows up in the installer as
RAID1 device #10 2.0TB xfs
I didn't check what format it was before running the installer, but I presume it has correctly detected it as xfs.
When I go to configure it, in the "How to use this partition" menu there is no xfs option. (Options are Ext3, Ext3, Ex2, btrfs, JFS, FAT16, FAT32, swap area, physical volume for encryption, physical volume for LVM, do not use.)
I took a backup, of course (several in fact!) but if possible I would like to use the existing filesystem as-is.
What's the trick here please?