RAID 1 on boot device in Software on Ubuntu

 This was learnt  https://askubuntu.com/questions/1482340/rescue-usb-for-ubuntu-server-22-04



But what was also learnt was it really struggles.  Currenly installer is goosed, and you have to blind-fly the disk selection - but that might not be the end of it...

Trying to convert an already running device with the boot on it... another level.


Best to get a hardware RAID device I think....

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