I've faced the same issue, but in a recently installed Ubuntu Desktop 18.04 on a Asus K46CB. I tried @pujan fix but it didn't work.
Several minutes later I've tried to type: ~$ cat /etc/resolv.conf following tips from here (Brazilian forum): https://www.vivaolinux.com.br/topico/Iniciantes-no-Linux/Update-no-Ubuntu-1604-LTS This command input in that thread was in fact intended to see the DNS config, but just the execution of the command seems to solve the guy problem. So I tried to input the same command and after I've (magically) also succeed to update the packages. There are two possible misconceptions here: - The kernel was already updating the packages because of the Ubuntu fresh install and apt in some way get confused; - Or it was a communication/network/ISP problem that got fixed by itself. As I didn't try to directly update the packages after the "several minutes" and type the cat command instead, it's not possible to know if it really was the cat command or the network that got fixed. Also it's kind of weird that the simple fact of checking a config file solve a problem, right? But it is kind of huge coincidence that two different computers in different years (2017 and 2019) got the same fix after that command, isn't it? ** Attachment added: "Outputs" https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1785778/+attachment/5245772/+files/apt_error.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785778 Title: Hash Sum mismatch Ubuntu Server 18.04.1 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1785778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
