Re: Can installer create degraded RAID-1 (mdraid) partitions

On 2026-08-11 at 21:37 -0400, Sam Varshavchik wrote:
> I know that Fedora's installer can create RAID-1 partitions. I'll be
> putting  
> in two hard drives, and setting up RAID-1 on them.
> 
> But one of the drives will take a little bit longer to arrive. Anyone
> happen  
> to recall if the installer will let me set up just one drive, for a
> degraded  
> RAID-1 array, and install Fedora? I don't remember the UI details, the
> last  
> time I did this install a few years ago. I suppose I can jsut try,
> see  
> what's possible, and only risk wasting a little bit of time; and if
> I'm in  
> luck I don't have to wait for the 2nd drive, and I'll just drop it in,
> and  
> add it to the array, and let it sync up.

I would build an array on any live distro. Setup arrays and partitions
using some random Fedora Live iso You have, like
# mdadm --create /dev/md0 --metadata=0.9 --level=1 --raid-devices=2
/dev/sda
(or with 1 device, I don't remember how to create degraded array)
# fdisk /dev/md0
(of md127, or whatever would show up from "fdisk -l")

Than You can either install Fedora from the same live media, or You
would have to boot from another Fedora iso and do
# mdadm --detail --scan --verbose > /etc/mdadm.conf

-- 
Łukasz Posadowski

-- 
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