"dd: /dev/ada0: Operation not permitted" on fresh install

[Crash test dummy]

Hello forum!

Fresh user here, trying a fresh install from the latest iso in the download section and have taken the following measures:

• It was created on a 16 GB Kingston USB3 stick (I don't have any USB2 sticks) and consider that good quality until someone says something else.
• Linux Mint inherent tool was used to put the image on the USB stick.
• SHA256 was used to check the downloaded image.

I get caught in the same place as some other users (root pw selected, swap and installation kicking off), so have tried some of the suggested countermeasures:

• Deselect swap
• Put the stick at the back of the machine instead

No change.

My system:

• Two Kingston 120GB SSD drives. Will be used for a mirrored install.
• Consumer grade Mobo with 8 core AMD processor and 16GB RAM.
• No HDD:s attached yet - I am missing two drives to set up a 4 unit RAID5 type of pool (I know, I have not yet learned the proper terminology) - they are in the mail. I was thinking to start configuring the system instead of waiting for them... =)
• This will be for home use.

I hope this makes sense!
Grateful for any pointers that could get me unstuck.

 

[Samuel Tai]

Try an earlier installer, like 11.1 or 11.2, and then upgrade once you get a good install.

 

[Crash test dummy]

I was able to find 11.2-U7, but not 11.1. Now I get a different error:

I tried inserting the USB stick both in the front and in the back with the same result.

 

[Samuel Tai]

Try disabling legacy USB and legacy USB 3.0 in your BIOS.