Access your Sophos Firewall console.
Select Device Management > Advanced Shell.
Run the following commands to save the archive to the var/ repository:
SFVH_SO01_SFOS xyxxxBuildccc# cd /
SFVH_SO01_SFOS xyxxxBuildccc# tar -cvzf var/AllXGLogs.tar.gz log/*
Note: save the file to the var/ repository !
Run the following command to verify:
SFVH_SO01_SFOS xyxxxBuildccc# ls -l var/AllXGLogs.tar.gz