I get the error Unable To Re-Read The Partition Table after i set up my raid 1 partitions layout and want to write it to disk, then the install proceeds as normal. After the install I found out that grub was installed on my usb stick and the partitions were filled with data on my 2 disks.
Anyone knows how to fix/bypass this error during install or what is the cause?

EDIT: nvm, I don't know whats the cause of this bug, but the system obviously installs fine, I just needed to boot from grub on the usb stick and use grub-install to get grub on both of the mirrored disks.