After I messed up the logical volume my swap was on I got the following on boot:
Warning: Could not boot
Warning: /dev/vg_server/swap does not exist
Starting Dracut Emergency Shell
I can boot by entering the following on each boot:
dracut:/# cd /usr/lib/dracut/hooks/initqueue/finished/ dracut:/# rm devexists-\x2fdev\x2fby-uuid\x2f$OLD_PARTITION_UUID.sh dracut:/# exit
I tried the following command but it made no difference
# dracut --force --regenerate-all
So then I tried re-installing the kernel rpm package
rpm -e --nodeps kernel-3.10.5-201.fc19.i686 yum install kernel-3.10.5-201.fc19.i686
The remove kernel command above would remove the current initramfs image, and then when installing it again, it makes dracut to create a new one, this time taken into account my fstab changes. But this still did not fix it.
Solution - problem solved, last I tried this and it boots normally now.
After booting I tried editing /boot/grub2/grub.cfg, I searched for and removed all references to my vg_server/lv_swap