found 582231 1.71 thanks Removing os-prober (1.71) ... dpkg: warning: while removing os-prober, directory '/var/lib/os-prober' not empty so not removed # find /var/lib/os-prober -ls 1443133 4 drwxr-xr-x 2 root root 4096 Dec 24 12:21 /var/lib/os-prober 1442408 4 -rw-r--r-- 1 root root 9 Dec 24 12:21 /var/lib/os-prober/labels # find /var/lib/os-prober -delete