wsl2-problems.md

WSL2 Common Problems Fixes

Hash Sum Mismatch

• when performing the standard sudo apt update and installing a package often you might see an error message that stating it failed to fetch the package due to checksum mismatch
• upon further researh on the ubuntu forms, the issues seems to be related to SHA256 optimization introduced from libcrypt20

gcrypt solution:

sudo su -
apt-get clean
rm -rf /var/lib/apt/lists/*
apt-get update -o Acquire::CompressionTypes::Order::=gz
mkdir /etc/gcrypt
echo all >> /etc/gcrypt/hwf.deny

• the /etc/gcrypt/hwf.deny file disables specific hardware features of the the gcrypt component of gnupg.
• essentially this solution disable the optimization causing the checksum mismatch.