Fedora 22 dracut route set and net installation restart

asked 2015-07-09 09:57:52 -0500

bbmrp gravatar image

Hello everyone, I have a hosted server which gets its IP information via DHCP upon boot. It's a publicly-addressable IP (/32), but its default route is to a 10-space IP.

I'd like to rebuild the host with Fedora 22 via a network installation. I currently have CentOS 6 installed, and have pulled down the Fedora 22 Server ISO to the host and copied over the isolinux/vmlinuz and isolinux/initrd.img files to /boot and modified grub.conf to point to each:

title Fedora22
    root (hd0,0)
    kernel /vmlinuz.f22 console=ttyS0,57600 inst.vnc inst.vncpassword=X inst.askmethod inst.repo=http://mirrors.mit.edu/fedora/linux/releases/22/Server/x86_64/os rd.route=
    initrd /initrd.f22

The problem arises when the host starts - it will successfully attempt to pull the repo information down, but fails since the default route is not available. The installation will drop me to the dracut emergency shell, where I can see that the DHCP address has been bound to the interface (enp2s0), yet the route information has not. If I manually set the route (ip route add dev enp2s0 ; ip route add default via I can then resolve DNS and ping outbound.

How do I either get dracut to honor the non-local route (the rd.route option doesn't seem to help) or restart the install from within the dracut emergency shell?

Thanks in advance for your help.

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