On Wed 15 Jan 2020 at 08:08:30 -0800, Alan Savage wrote: > I am trying to upgrade from stretch to buster using the nonfree > installation DVD ISO "firmware-10.2.0-amd64-DVD-1.iso" that I downloaded > using the torrent here: > https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/10.2.0+nonfree/amd64/bt-dvd/ > > I copied the ISO to the local drive on my computer and added this line to > fstab: > > /data/firmware-10.2.0-amd64-DVD-1.iso /mnt/apt iso9660 user,loop 0 0 > > mounted it, then added the source like this: > sudo apt-cdrom -m -d=/mnt/apt add > > which added a line to /etc/apt/source.list, but when I do "sudo apt update" > I get the error > > "Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update > cannot be used to add new CD-ROMs" > then > E: The repository 'cdrom://...snip...' does not have a Release file. > N: Updating from such a repository can't be done securely, and is therefore > disabled by default. > > What am I doing wrong?
See sources.list(5) and adjust the line in /etc/apt/sources.list to begin with "deb [trusted=yes]". -- Brian.