Habe gerade erst gesehen, dass das Problem bekannt ist.
modifikation util.py in /usr/libexec/grommunio-cui/cui:
'def get_last_login_time():
"""Return last login time as string"""
last_login=""
try:
with subprocess.Popen(
["last", "-1", "root"],
stderr=subprocess.DEVNULL,
stdout=subprocess.PIPE,
) as proc:
res, _ = proc.communicate()
out = bytes(res).decode()
lines = out.splitlines()
if len(lines) > 0:
parts = out.splitlines()[0].split(" ")
if len(parts) > 1:
last_login = parts[1].strip()
except OSError:
last_login = "Unknown"
return last_login`
löste das Problem sofort