Package: apt Version: 1.8.2 Severity: minor # apt update W: Download is performed unsandboxed as root as file '/var/lib/apt/lists/partial/opensource.nchc.org.tw_debian_dists_experimental_InRelease' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied) # ls /var/lib/apt/lists/partial/ -ld drwx------ 2 _apt root 4096 06-18 10:47 /var/lib/apt/lists/partial/