debian apt packages hash sum mismatch [closed]

Answer 1

Try using apt-get:

apt-get clean
rm -rf /var/lib/apt/lists/*
apt-get clean
apt-get update
apt-get upgrade

Answer 2

For me, rm -rf /var/lib/apt/lists/* && apt-get update didn't work.
However, rm -rf /var/lib/apt/lists/* && apt update did work.

Answer 3

I had this issue using Virtualbox on Windows, with Ubuntu as my GuestOS. I was getting hash sum mismatches (among other odd errors) because Hyper-V was running on Windows. This link details how to disable Hyper-V, extract below:

Open Powershell - Run as Administrator and use the command:

bcdedit /set hypervisorlaunchtype off

Followed by a restart.

Answer 4

sometime reverse proxy(apache,nginx,...) and network will make checksum issue, we can try http proxy of different region to solve the problem:

apt-get update -o Acquire::http::Proxy="$HTTP_PROXY"  -o Debug::Acquire::http=true

Answer 5

Upgrade apt with sudo apt-get install apt