Description of problem:
I installed F20-Beta TC1 in VirtualBox, without UEFI flag (own
partitioning, x86_64, booting from netinst.iso) flawlessly. The
installed system hangs on boot, only a black screen. Running the iso in
troubleshooting mode and (re)writing the grub2 boot record was
possible. But still no boot possible (grub2 does not present any
bootable system, only a command prompt).

output of the mount command (in the rescue shell):

/dev/sda1 on / type ext4 (rw,relatime,seclabel,data=ordered)
devtmpfs on /dev type devtmpfs
(rw,nosuid,seclabel,size=362692k,nr_inodes=90673,mode=755)
devpts on /dev/pts type devpts
(rw,relatime,seclabel,gid=5,mode=620,ptmxmode=000)
tmpfs on /dev/shm type tmpfs (rw,relatime,seclabel)
/dev/sda2 on /home type ext4 (rw,relatime,seclabel,data=ordered)
proc on /proc type proc (rw,relatime)
tmpfs on /run type tmpfs (rw,nosuid,nodev,seclabel,mode=755)
sysfs on /sys type sysfs (rw,relatime,seclabel)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)

/etc/fstab:

#
# /etc/fstab
# Created by anaconda on Thu Oct  3 07:32:42 2013
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=e5ac9be3-0ff9-4478-8f6a-f13ae1dfcdcf /                       ext4
  defaults        1 1
UUID=e70ba418-deb0-4af1-83fc-6e3ded10dd57 /home                   ext4
  defaults        1 2
UUID=a892fae8-4a5a-487e-9927-8f3d1e0f3fa0 swap                    swap
  defaults        0 0


Version-Release number of selected component (if applicable):
F20-Beta-TC1

How reproducible:
always

Steps to Reproduce:
1.see description
2.
3.

Actual results:


Expected results:


Additional info: