zerai.xyz/content/post/apt-issues.md

+++ title = "Apt Issues" date = 2022-09-09T19:36:53-04:00 lastmod = 2022-09-09T19:36:53-04:00 tags = ["apt","DNS","error"] categories = ["Linux"] imgs = [] cover = "" # image show on top readingTime = true # show reading time after article date toc = true comments = false justify = false # text-align: justify; single = false # display as a single page, hide navigation on bottom, like as about page. license = "" # CC License draft = false +++

If you get a "failed to fetch" error occurs when apt-get update is run, then try this:

Edit DNS

First try to ping any website

ping zerai.xyz

If you can't resolve the DNS

{{< highlight bash-session >}} ping: zerai.xyz: Temporary failure in name resolution {{< /highlight >}}

Then first edit resolv.conf

sudo vi /etc/resolv.conf

Change your DNS to any DNS Server

{{< highlight bash-session >}} nameserver 100.64.0.7 {{< /highlight >}}

Next execute this commands :

sudo apt-get --download-only --reinstall install resolvconf
sudo dpkg --purge --force-depends resolvconf
sudo apt-get install resolvconf

Finaly if you still have DNS problems a reboot is recommended

If you have an EOL version(Ubuntu)

Just run

sudo sed -i -r 's/([a-z]{2}.)?archive.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list

and

sudo sed -i -r 's/security.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list