Description of problem: I was choosing the type of the partition in anaconda partitioning GUI and this traceback poped out. Version-Release number of selected component: anaconda-18.11-1.fc18.x86_64 Additional info: libreport version: 2.0.14 cmdline: /usr/bin/python /sbin/anaconda --liveinst --method=livecd:///dev/mapper/live-osimg-min --lang en_US.UTF-8 kernel: 3.6.0-1.fc18.x86_64 description: :The following was filed automatically by anaconda: :anaconda 18.11 exception report :Traceback (most recent call first): : File "/usr/lib64/python2.7/site-packages/pyanaconda/storage/devicelibs/mdraid.py", line 146, in get_member_space : % (level, min_members)) : File "/usr/lib64/python2.7/site-packages/pyanaconda/storage/__init__.py", line 3290, in device_size : level=self.raid_level) : File "/usr/lib64/python2.7/site-packages/pyanaconda/ui/gui/spokes/custom.py", line 1170, in _populate_raid : base_size = factory.device_size : File "/usr/lib64/python2.7/site-packages/pyanaconda/ui/gui/spokes/custom.py", line 1665, in on_device_type_changed : self._populate_raid(new_type, raid_level, size) :ValueError: raid0 requires at least 2 disks
Created attachment 620797 [details] File: anaconda-tb
Created attachment 620798 [details] File: environ
Created attachment 620799 [details] File: type
Created attachment 620800 [details] File: ifcfg.log
Created attachment 620801 [details] File: storage.log
Created attachment 620802 [details] File: version
Created attachment 620803 [details] File: program.log
Created attachment 620804 [details] File: product
Created attachment 620805 [details] File: anaconda.log
Created attachment 620806 [details] File: hashmarkername
Created attachment 620807 [details] File: cmdline_file
Created attachment 620808 [details] File: release
Created attachment 620809 [details] File: messages
On system with one harddrive. On Manul Partitioning screen generate automatic layout, on Root partition select device type RAID. Package: anaconda-18.11 OS Release: Fedora release 18-Beta-TC1
Still a problem with 18.14 with two hard drives selected.
This should be fixed in the most recent TC. Please reopen if it remains.