I have a second laptop which I want to sell. Before that, I need to erase my entire computer securely. To do so, I use an Ubuntu Live USB-Stick.Entering lsblk gives me the following result:max@main ~ $ lsblkNAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTsda      8:0    0 232,9G  0 disksdb      8:16    1 14,6G  0 disk /cdrom sdb1   8:17    1   1,4G  0 part sdb2   8:18    1 2,3M  0 part loop0     7:0    0 1,4G  1 loop /rofs I already erased sda using:sudo dd if=/dev/zero of=/dev/sdasudo dd if=/dev/urandom of=/dev/sdaDo I have to erase sdb as well? I dont really understand the Mountpoint /cdrom part of it. And what about loop0?I apologize for my lack of knowledge and would greatly appreciate any hints!Cheers,M.
Format other drives than /dev/sda using dd
ubuntu;command line;dd;delete