提示chmod 0700 of directory /var/lib/apt/lists/partial failed
在安装RASPBIAN STRETCH LITE OS时，执行apt-get update出错：
1 2 3 4 5 6 7 apt update Reading package lists... Done W: chmod 0700 of directory /var/lib/apt/lists/partial failed - SetupAPTPartialDirectory (1: Operation not permitted) E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied) E: Unable to lock directory /var/lib/apt/lists/ W: Problem unlinking the file /var/cache/apt/pkgcache.bin - RemoveCaches (13: Permission denied) W: Problem unlinking the file /var/cache/apt/srcpkgcache.bin - RemoveCaches (13: Permission denied) l4ftpod6.