Fresh Arch install: Lots of "could not resolve host" errors
I’ve just installed Arch. My computer is connected to my router/modem via Ethernet cable.
I just logged in and tried using pacman to install a package but got a bunch of "could not resolve host" errors.
When I run ping google.com it sometimes works but other times gives this error: Temporary failure in name resolution.
Output of ip addr
Contents of /etc/resolv.conf
It looks like you have both dhcpcd and network-manager installed. Having two packages to manage your network causes conflicts. Try uninstalling one of them.
According ip addr, it appears you have not connected and authenticated to a wireless network yet.
Use iwctl to connect to a network:
iwctl --passphrase <passphrase> station wlp1s0 connect <SSID>
It’s generally a DNS-related issue. Since Arch is now typically dominated by Systemed, it’s likely that the problem lies with one of its daemons, systemd-resolved, which provides network name resolution to local applications.
So, the first step is to check its status:
systemctl status systemd-resolved
If you see that the value of Active field is inactive, you need to start it:
systemctl start systemd-resolved
My particular issue was not having installed linux-firmware before rebooting without the flash ISO. The wireless device was missing altogether from ip addr. The solution was to :
- Boot from the arch iso.
- Use
iwctlto connect to the wireless network - After having installed a working network connection
arch-chrootinto my installation (mount it again if needed). pacman -S linux-firmware