Error Installing CentOS 7
I received the error "This program has encountered an unknown error." When installing CentOS. At the end of the report it had details about RAID and I remembered that the disk was part of a RAID.
Oh and it was user TrevorH that posted the solution on. Thanks Trevor!
https://www.centos.org/forums/viewtop...
To get rid of the RAID config:
Restart the server
At the menu choose Troubleshooting
Choose Rescue a CentOS system
You will be asked to make a selection, type in 1 and press enter
You will see a prompt “Please press return to get a shell. Press the enter key
Under “Rescue Mount” check which disk you need to configure i.e. sdb
Now type: dmraid -E -r /dev/yourDisk i.e. (dmraid -E -r /dev/sda1)
You will be asked if you want to erase “isw”. type y and press enter
Reboot your server and install CentOS 7