APT hangs Debian 9 with update.

Update… they all seem to stop on:

I removed:

/etc/apt/sources.list.d/mariadb.list

There seems to be something in this file that causes the hang.

@primalmedia I'm sorry to hear that you are having trouble updating the MariaDB. Sometimes, apt might try to update over IPv6. I don't see this message in the output you provided. However, to help rule this out, what happens when you add the -o flag to force IPv4?

apt-get -o Acquire::ForceIPv4=true update

I just ran into the exact same thing - moving the mariadb.list out of /etc/apt/sources.list.d/ allowed update to work

I just had the same issue with Debian 9.
It would simply hang here indefinitely:

root@localhost:~# apt update
0% [Connecting to mirrors.linode.com (2400:8907:1::ac69:a422)]^C

As suggested, I forced IPv4 with the below command and everything worked fine. Thanks for the suggestion.

root@localhost:~# apt -o Acquire::ForceIPv4=true update
Ign:1 http://mirrors.linode.com/debian stretch InRelease
Get:2 http://mirrors.linode.com/debian-security stretch/updates InRelease [94.3 kB]
Get:3 http://mirrors.linode.com/debian stretch-updates InRelease [91.0 kB]
Hit:4 http://mirrors.linode.com/debian stretch Release
Fetched 185 kB in 0s (705 kB/s)
Reading package lists… Done
Building dependency tree
Reading state information… Done
All packages are up to date.

If you want to make it permanent then create the following text file;

/etc/apt/apt.conf.d/99force-ipv4

Then add the following line in to said file;

Acquire::ForceIPv4 "true";

Save file and then you should be set to simply update with the normal apt-get update or apt update and IPv4 will be used as default.