salah install v4l2loopback-utils

$ sudo apt install v4l2loopback-utils [sudo] password for dhwan: Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libunity-gtk2-parser0 libunity-gtk3-parser0 Use 'sudo apt autoremove' to remove them. The following additional packages will be installed: dctrl-tools dkms libv4l2rds0 v4l-utils v4l2loopback-dkms Suggested packages: debtags menu The following NEW packages will be installed: dctrl-tools dkms libv4l2rds0 v4l-utils v4l2loopback-dkms v4l2loopback-utils 0 upgraded, 6 newly installed, 0 to remove and 36 not upgraded. Need to get 770 kB of archives. After this operation, 3.014 kB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://id.archive.ubuntu.com/ubuntu focal/main amd64 dctrl-tools amd64 2.24-3 [61,5 kB] Get:2 http://id.archive.ubuntu.com/ubuntu focal-updates/main amd64 dkms all 2.8.1-5ubuntu2 [66,8 kB] Get:3 http://id.archive.ubuntu.com/ubuntu focal/main amd64 libv4l2rds0 amd64 1.18.0-2build1 [15,8 kB] Get:4 http://id.archive.ubuntu.com/ubuntu focal/universe amd64 v4l-utils amd64 1.18.0-2build1 [586 kB] Get:5 http://id.archive.ubuntu.com/ubuntu focal-updates/universe amd64 v4l2loopback-dkms all 0.12.3-1ubuntu0.4 [27,3 kB] Get:6 http://id.archive.ubuntu.com/ubuntu focal-updates/universe amd64 v4l2loopback-utils all 0.12.3-1ubuntu0.4 [12,5 kB] Fetched 770 kB in 3s (228 kB/s) Selecting previously unselected package dctrl-tools. (Reading database ... 279379 files and directories currently installed.) Preparing to unpack .../0-dctrl-tools_2.24-3_amd64.deb ... Unpacking dctrl-tools (2.24-3) ... Selecting previously unselected package dkms. Preparing to unpack .../1-dkms_2.8.1-5ubuntu2_all.deb ... Unpacking dkms (2.8.1-5ubuntu2) ... Selecting previously unselected package libv4l2rds0:amd64. Preparing to unpack .../2-libv4l2rds0_1.18.0-2build1_amd64.deb ... Unpacking libv4l2rds0:amd64 (1.18.0-2build1) ... Selecting previously unselected package v4l-utils. Preparing to unpack .../3-v4l-utils_1.18.0-2build1_amd64.deb ... Unpacking v4l-utils (1.18.0-2build1) ... Selecting previously unselected package v4l2loopback-dkms. Preparing to unpack .../4-v4l2loopback-dkms_0.12.3-1ubuntu0.4_all.deb ... Unpacking v4l2loopback-dkms (0.12.3-1ubuntu0.4) ... Selecting previously unselected package v4l2loopback-utils. Preparing to unpack .../5-v4l2loopback-utils_0.12.3-1ubuntu0.4_all.deb ... Unpacking v4l2loopback-utils (0.12.3-1ubuntu0.4) ... Setting up libv4l2rds0:amd64 (1.18.0-2build1) ... Setting up dctrl-tools (2.24-3) ... Setting up v4l-utils (1.18.0-2build1) ... Setting up dkms (2.8.1-5ubuntu2) ... Setting up v4l2loopback-utils (0.12.3-1ubuntu0.4) ... Setting up v4l2loopback-dkms (0.12.3-1ubuntu0.4) ... Loading new v4l2loopback-0.12.3 DKMS files... Building for 5.8.0-59-generic Building initial module for 5.8.0-59-generic Can't load /var/lib/shim-signed/mok/.rnd into RNG 139947729372480:error:2406F079:random number generator:RAND_load_file:Cann ot open file:../crypto/rand/randfile.c:98:Filename=/var/lib/shim-signed/mo k/.rnd Generating a RSA private key .......................................................................... ......................................+++++ .......................................................................... .................................+++++ writing new private key to '/var/lib/shim-signed/mok/MOK.priv' ----- Secure Boot not enabled on this system. Done. v4l2loopback.ko: Running module version sanity check. - Original module - No original module exists within this kernel - Installation - Installing to /lib/modules/5.8.0-59-generic/updates/dkms/ depmod...... DKMS: install completed. Processing triggers for libc-bin (2.31-0ubuntu9.2) ... Processing triggers for man-db (2.9.1-1) ... sudo apt remove v4l2loopback-utils Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: dctrl-tools dkms libunity-gtk2-parser0 libunity-gtk3-parser0 libv4l2rds0 v4l-utils v4l2loopback-dkms Use 'sudo apt autoremove' to remove them. The following packages will be REMOVED: v4l2loopback-utils 0 upgraded, 0 newly installed, 1 to remove and 36 not upgraded. After this operation, 31,7 kB disk space will be freed. Do you want to continue? [Y/n] y (Reading database ... 279506 files and directories currently installed.) Removing v4l2loopback-utils (0.12.3-1ubuntu0.4) ... Processing triggers for man-db (2.9.1-1) ...