tata@rano:~$ add-apt-repository -y ppa:teejee2008/ppa Error: must run as root tata@rano:~$ cd / tata@rano:/$ add-apt-repository -y ppa:teejee2008/ppa Error: must run as root tata@rano:/$ cd tata@rano:~$ sudo add-apt-repository -y ppa:teejee2008/ppa [sudo] password for tata: Get:1 file:/var/cuda-repo-10-0-local-10.0.326 InRelease Ign:1 file:/var/cuda-repo-10-0-local-10.0.326 InRelease Get:2 file:/var/visionworks-repo InRelease Ign:2 file:/var/visionworks-repo InRelease Get:3 file:/var/visionworks-sfm-repo InRelease Ign:3 file:/var/visionworks-sfm-repo InRelease Get:4 file:/var/visionworks-tracking-repo InRelease Ign:4 file:/var/visionworks-tracking-repo InRelease Get:5 file:/var/cuda-repo-10-0-local-10.0.326 Release [574 B] Get:6 file:/var/visionworks-repo Release [1.999 B] Get:5 file:/var/cuda-repo-10-0-local-10.0.326 Release [574 B] Get:7 file:/var/visionworks-sfm-repo Release [2.003 B] Get:6 file:/var/visionworks-repo Release [1.999 B] Get:7 file:/var/visionworks-sfm-repo Release [2.003 B] Get:8 file:/var/visionworks-tracking-repo Release [2.008 B] Get:8 file:/var/visionworks-tracking-repo Release [2.008 B] Hit:9 https://brave-browser-apt-release.s3.brave.com stable InRelease Get:10 https://repo.download.nvidia.com/jetson/common r32 InRelease [2.541 B] Get:11 https://repo.download.nvidia.com/jetson/t210 r32 InRelease [2.555 B] Hit:12 http://archive.canonical.com/ubuntu bionic InRelease Hit:14 http://ppa.launchpad.net/nemh/systemback/ubuntu xenial InRelease Hit:15 http://ports.ubuntu.com/ubuntu-ports bionic InRelease Get:17 http://ports.ubuntu.com/ubuntu-ports bionic-updates InRelease [88,7 kB] Hit:18 http://ppa.launchpad.net/alexlarsson/flatpak/ubuntu bionic InRelease Hit:21 http://ppa.launchpad.net/pj-assis/ppa/ubuntu bionic InRelease Get:22 http://ports.ubuntu.com/ubuntu-ports bionic-backports InRelease [74,6 kB] Get:23 http://ports.ubuntu.com/ubuntu-ports bionic-security InRelease [88,7 kB] Hit:24 http://ppa.launchpad.net/teejee2008/ppa/ubuntu bionic InRelease Get:25 http://ports.ubuntu.com/ubuntu-ports bionic-updates/main arm64 Packages [651 kB] Get:26 http://ports.ubuntu.com/ubuntu-ports bionic-updates/main arm64 DEP-11 Metadata [296 kB] Get:27 http://ports.ubuntu.com/ubuntu-ports bionic-updates/universe arm64 DEP-11 Metadata [269 kB] Get:28 http://ports.ubuntu.com/ubuntu-ports bionic-backports/universe arm64 DEP-11 Metadata [7.972 B] Get:29 http://ports.ubuntu.com/ubuntu-ports bionic-security/main arm64 DEP-11 Metadata [32,5 kB] Get:30 http://ports.ubuntu.com/ubuntu-ports bionic-security/universe arm64 DEP-11 Metadata [37,0 kB] Fetched 1.550 kB in 6s (259 kB/s) Reading package lists... Done W: Target Sources (main/source/Sources) is configured multiple times in /etc/apt/sources.list.d/teejee2008-ubuntu-ppa-bionic.list:2 and /etc/apt/sources.list.d/teejee2008-ubuntu-ppa-bionic.list:3 W: Target Sources (main/source/Sources) is configured multiple times in /etc/apt/sources.list.d/teejee2008-ubuntu-ppa-bionic.list:2 and /etc/apt/sources.list.d/teejee2008-ubuntu-ppa-bionic.list:3 tata@rano:~$ apt update Reading package lists... Done 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) tata@rano:~$ sudo apt update Get:1 file:/var/cuda-repo-10-0-local-10.0.326 InRelease Ign:1 file:/var/cuda-repo-10-0-local-10.0.326 InRelease Get:2 file:/var/visionworks-repo InRelease Ign:2 file:/var/visionworks-repo InRelease Get:3 file:/var/visionworks-sfm-repo InRelease Ign:3 file:/var/visionworks-sfm-repo InRelease Get:4 file:/var/visionworks-tracking-repo InRelease Ign:4 file:/var/visionworks-tracking-repo InRelease Get:5 file:/var/cuda-repo-10-0-local-10.0.326 Release [574 B] Get:6 file:/var/visionworks-repo Release [1.999 B] Get:7 file:/var/visionworks-sfm-repo Release [2.003 B] Get:5 file:/var/cuda-repo-10-0-local-10.0.326 Release [574 B] Get:8 file:/var/visionworks-tracking-repo Release [2.008 B] Get:6 file:/var/visionworks-repo Release [1.999 B] Get:7 file:/var/visionworks-sfm-repo Release [2.003 B] Get:8 file:/var/visionworks-tracking-repo Release [2.008 B] Hit:9 https://brave-browser-apt-release.s3.brave.com stable InRelease Get:10 https://repo.download.nvidia.com/jetson/common r32 InRelease [2.541 B] Get:11 https://repo.download.nvidia.com/jetson/t210 r32 InRelease [2.555 B] Hit:12 http://archive.canonical.com/ubuntu bionic InRelease Hit:14 http://ppa.launchpad.net/nemh/systemback/ubuntu xenial InRelease Hit:15 http://ports.ubuntu.com/ubuntu-ports bionic InRelease Hit:16 http://ports.ubuntu.com/ubuntu-ports bionic-updates InRelease Hit:18 http://ports.ubuntu.com/ubuntu-ports bionic-backports InRelease Hit:19 http://ppa.launchpad.net/alexlarsson/flatpak/ubuntu bionic InRelease Hit:21 http://ports.ubuntu.com/ubuntu-ports bionic-security InRelease Hit:23 http://ppa.launchpad.net/pj-assis/ppa/ubuntu bionic InRelease Hit:24 http://ppa.launchpad.net/teejee2008/ppa/ubuntu bionic InRelease Fetched 5.096 B in 5s (1.041 B/s) Reading package lists... Done Building dependency tree Reading state information... Done 49 packages can be upgraded. Run 'apt list --upgradable' to see them. W: Target Sources (main/source/Sources) is configured multiple times in /etc/apt/sources.list.d/teejee2008-ubuntu-ppa-bionic.list:2 and /etc/apt/sources.list.d/teejee2008-ubuntu-ppa-bionic.list:3 W: Target Sources (main/source/Sources) is configured multiple times in /etc/apt/sources.list.d/teejee2008-ubuntu-ppa-bionic.list:2 and /etc/apt/sources.list.d/teejee2008-ubuntu-ppa-bionic.list:3 tata@rano:~$ sudo apt install timeshift Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package timeshift tata@rano:~$ ^C tata@rano:~$