From VarLogDistupgradeApttermlog.gz:
Removing memtest86+ ... /usr/sbin/grub-probe: napaka: cannot find a device for / (is /dev mounted?). dpkg: error processing memtest86+ (--remove): subprocess installed post-removal script returned error exit status 1
From VarLogDistupgra deApttermlog. gz:
Removing memtest86+ ... grub-probe: napaka: cannot find a device for / (is /dev mounted?).
/usr/sbin/
dpkg: error processing memtest86+ (--remove):
subprocess installed post-removal script returned error exit status 1