Hi, I ran those commands, and it fixed the problem: /dev/disk/by-uuid now exists and contains the links I expected to see.
However, it introduced a new problem. Now, my network interface eth0 does not show up like it did before. For example, when I run ifconfig, "lo" shows up but "eth0" is missing. Nothing that relies on the network works. I've compared /var/log/messages before and after. Before the reconfigure, it contained the following messages from "b44" (I think this is my ethernet driver). This seems to show eth0 being successfully set up: --8<---------------cut here---------------start------------->8--- Feb 14 12:52:44 localhost vmunix: [ 8.172311] b44: Broadcom 44xx/47xx 10/100 PCI ethernet driver version 2.0 Feb 14 12:52:44 localhost vmunix: [ 8.192588] b44 ssb0:0 eth0: Broadcom 44xx/47xx 10/100 PCI ethernet driver 00:19:b9:7e:b4:cd Feb 14 12:52:48 localhost vmunix: [ 45.812218] b44 ssb0:0 eth0: Link is up at 100 Mbps, full duplex Feb 14 12:52:48 localhost vmunix: [ 45.812226] b44 ssb0:0 eth0: Flow control is off for TX and off for RX Feb 14 12:52:48 localhost vmunix: [ 55.223285] b44 ssb0:0 eth0: powering down PHY Feb 14 12:52:48 localhost vmunix: [ 55.252555] b44 ssb0:0 eth0: powering down PHY Feb 14 12:52:52 localhost vmunix: [ 61.812216] b44 ssb0:0 eth0: Link is up at 100 Mbps, full duplex Feb 14 12:52:52 localhost vmunix: [ 61.814593] b44 ssb0:0 eth0: Flow control is off for TX and off for RX --8<---------------cut here---------------end--------------->8--- However, after the upgrade, I only see the following messages: --8<---------------cut here---------------start------------->8--- Feb 14 12:12:16 localhost vmunix: [ 10.820248] b44: Broadcom 44xx/47xx 10/100 PCI ethernet driver version 2.0 Feb 14 12:12:16 localhost vmunix: [ 10.848595] b44 ssb0:0 eth0: Broadcom 44xx/47xx 10/100 PCI ethernet driver 00:19:b9:7e:b4:cd --8<---------------cut here---------------end--------------->8--- I've checked messages, dmd.log, and shepherd.log in /var/log/, but I can't figure out why networking isn't working. I found a similar problem on the Guix bug tracker: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=18483 However, I don't see messages like those in my logs, so I'm not sure it's the same problem. How can I proceed? My goal is to make networking work, like it did before the reconfigure. I don't think I can use the new version of guix until I get this networking problem fixed. Any advice would be appreciated. Thank you, Chris