пт, 18 дек. 2020 г. в 18:26, bobwxc <bob...@88.com>: > > 在 2020/12/19 上午1:29, gevisz 写道: > > I am currently installing a new Gentoo system > > on a computer that is run by a Gentoo system > > that has not been updated since January 2019. > > > > Initially, I did so by chrooting to a newly formatted > > disk partition. My intention was to build everything > > in the chrooted environment and only then start > > to work in the new Gentoo system. > > > > However, when after installing Grub I rebooted into > > the new Gentoo system to find out if it works and > > rebooted again into the old Gentoo system to continue > > compilation in the chroot environment, I found out > > that my computer does not have a working ethernet > > connection to my home router. The "ip addr" command > > showed that my ethernet interface is down. > > > > I tried "ip link set <eth0> up" and "ifconfig <eth0> up" > > commands, where <eth0> substitutes the correct, > > "predictable," name of my ethernet interface but it > > had not helped. > > > > Initially, I thought that something was wrong with my > > hardware, but when I rebooted into my new Gentoo > > system, the ethernet interface started to work again. > > Then, I rebooted back to the old system, and > > the ethernet interface stopped working again. > > > > It is very strange because I am sure that I have not > > changed anything on my old Gentoo system except > > for installing a new Grub onto the system disk. > > > > So, I have tried to reinstall (the old) Grub from > > my old system, but it has not helped either. > > > > Finally, I decided that it would be easier to complete > > installation of the new Gentoo system than to find out > > what is wrong with the old Gentoo system ethernet > > connection. So, I compiled xorg-x11, awesome, gvim, > > xfce4-terminal and are currently compiling firefox. > > > > Hopefully, tomorrow I will already have my new Gentoo > > system working. > > > > However, I am still wondering why the ethernet interface > > stopped working on my old Gentoo system. > > > > As, I have already said, I am pretty sure that I have not > > changed anything in its settings. Moreover, I have looked > > through the entire /etc directory of my old Gentoo system > > for config files that were modified during the installation > > of the new Gentoo system (suspecting that instead of the > > chrooted environment I put an installation command into > > the su terminal of my old Gentoo system or mistakenly > > edited a configuration file of my old Gentoo system) but > > found no config file that was modified during this period of time. > > > > So, I am not in a desperate need for help, but just interested > > to find out the reason for such a strange behaviour of the > > ethernet interface. > > > > P.S. I have read in the Gentoo Network management wiki > > that the connman, netifrc, dhcpcd, networkmanager, and > > openrc should not be run at the same time because it could > > lead to "unpredictable results" and checked if it is not > > the case on my old Gentoo system. No, on my old Gentoo > > system installed is only the openrc with the netifrc use flag > > and netifrc (which, as I guess, leads to only netifrc being used). > > But, anyway, it has been worked so for years and only > > now suddenly stopped. > > That is interesting. Something must been changed here. > Do you use some partitions for both gentoo systems? > Not the root, just like boot ESP partition or home.
Yes, I mount the same home partition (actually the separate disk) on both. And it still has some configuration files from a pre-Gentoo era :) as it has been used for Ubuntu 10 years ago. A separate partition with rarely used virtual machines is also mounted into a user directory. Also a common swap. ESP partition also exists but I never mounted it on old Gentoo and recently disabled it from mounting into a new one as well (after realized that it is not needed at all :).
