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I'm trying to upgrade from Xubuntu 20.04 to 24.04 but getting the following when I try sudo apt update:

W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-updates/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-backports/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-security/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

$ ping archive.ubuntu.com
PING archive.ubuntu.com (185.125.190.81) 56(84) bytes of data.
64 bytes from ubuntu-mirror-1.ps5.canonical.com (185.125.190.81): icmp_seq=1 ttl=54 time=71.0 ms
64 bytes from ubuntu-mirror-1.ps5.canonical.com (185.125.190.81): icmp_seq=2 ttl=54 time=71.9 ms
64 bytes from ubuntu-mirror-1.ps5.canonical.com (185.125.190.81): icmp_seq=3 ttl=54 time=70.6 ms
^C
--- archive.ubuntu.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 70.583/71.180/71.946/0.569 ms


$ sudo apt update
Err:1 http://archive.ubuntu.com/ubuntu focal InRelease
  Temporary failure resolving 'archive.ubuntu.com'
Err:2 http://archive.ubuntu.com/ubuntu focal-updates InRelease
  Temporary failure resolving 'archive.ubuntu.com'
Err:3 http://archive.ubuntu.com/ubuntu focal-backports InRelease
  Temporary failure resolving 'archive.ubuntu.com'
Err:4 http://archive.ubuntu.com/ubuntu focal-security InRelease
  Temporary failure resolving 'archive.ubuntu.com'
Reading package lists... Done
Building dependency tree

Reading state information... Done
All packages are up to date.
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-updates/InRelease     Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-backports/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-security/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

The ping in the middle shows archive.ubuntu.com is being successfully resolved to 185.125.190.81, yet apt insists it can't resolve it. I've tried other repositories, and the same thing happens with all of them. Can anyone help me resolve this? (pun not intended.)

user1636349
  • 113

1 Answers1

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I didn't have such a problem but you can try changing the apt repository:

sudo nano /etc/apt/sources.list

(try if that didn't work /etc/apt/sources.list.d/ubuntu.sources)

deb {http:CUSTOMREPO.COM/UBUNTU/}

deb-src is for source code

Or if you are editing the [/etc/apt/sources.list.d/ubuntu.sources], You should put your link After URI:

apt repo list (mirrors): https://launchpad.net/ubuntu/+archivemirrors

Alex.m
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