On Fri, Jan 31, 2025 at 02:55:56PM +0900, Mailing List wrote: > I believe I've found a bug in the DVD ISO installer logic which affects > 11.11 and earlier but in theory could affect 12.x as well. > > Description: > > A default installation of Debian 11.11 (Bullseye) from the official DVD ISO > fails with the following error: > > Installation step failed > An installation step failed. You can try to run the failing item again > from the menu, or skip it and choose something else. The failing step > is: Select and install software > > This failure occurs during the "Select and install software" stage. The > root cause is an attempt to install security updates from the security > network repository *even when the user selects the default "No" to using a > network mirror*. > > Steps to Reproduce: > 1. Boot the Debian 11.11 DVD ISO on an Internet-connected PC > 2. Proceed through the installation process. > 3. When prompted "Use a network mirror?", select the default "No". > 4. Continue with the installation. > 5. The installation will fail at the "Select and install software" step > with the aforementioned error. > > Expected Behavior: > > The installation should succeed whether the user uses the default "No" to > using a network mirror or manually sets a network mirror to use. >
This is also the case in Bookworm - Debian 12. This is potentially intended logic`, though probably not for the reasons you think. If you want to perform an entirely offline installation as suggested further down - you _need_ to start the installation with no Wifi network connection attempted / no network cable connected. Network connection will fail and you won't then be asked about a network mirror after that point. [You might be able to achieve the same effect if a cable is connected by selecting manual configuration and then selecting the option for the network as Do not configure at this time]. If you don't have a network configured then the entire installation will proceed from the install medium and the /etc/apt/sources.list file will reflect this. You might want to connect to security updates at some point in the future when you have network connectivity so the option to select those and auto-updates for security is still presented. This is from performing installs with no network as we do when testing point releaases / main releases of Debian in the install media team. Hope this helps - with every good wish, as ever, Andrew Cater (amaca...@debian.org) > Observed Behavior: > > When "No" is selected for the network mirror, the installer still attempts > to use the repository http://security.debian.org/debian-security > bullseye-security/main. This leads to dependency issues because the DVD > media's package versions are older than those required by the security > repository updates. The installer then fails because it cannot resolve > these dependencies. > > Workaround: > > The user must either: > > 1. Select "Yes" to the "Use a network mirror?" prompt and configure a > mirror. > 2. Disconnect the machine from the network before starting the > installation. > > These workarounds are not obvious to the user, even after encountering the > "Installation step failed" error. > > Impact: > > This bug prevents users from performing a default offline installation of > Debian 11.11 from the DVD ISO on a network-connected machine. It creates a > confusing user experience and may lead users to believe the ISO is faulty. > > Further Information: > > This issue highlights a potential disconnect between the intent of the "No" > option for network mirrors and the actual installer behavior. IMO, > the installer should do one of the following: > > - Respect the user's choice and perform a purely offline installation > when "No" is selected on the network mirror page. > - If the user chooses not to use a mirror, check for an internet > connection and either: > - prompt the user to decide to install security updates, with a > warning that this may fail without a mirror. > - prompt the user to set a network mirror to avoid potential > installation failure. > > > Relevant installation syslog: > > Jan 31 05:32:59 cdrom-detect: Devices: '/dev/sr0' > Jan 31 05:32:59 cdrom-detect: CD-ROM mount succeeded: device=/dev/sr0 > fstype=iso9660 > Jan 31 05:32:59 kernel: [ 7.306344] ISO 9660 Extensions: Microsoft > Joliet Level 3 > Jan 31 05:32:59 kernel: [ 7.306752] ISO 9660 Extensions: RRIP_1991A > Jan 31 05:32:59 cdrom-detect: Detected CD 'Debian GNU/Linux 11.11.0 > "Bullseye" - Official amd64 DVD Binary-1 20240831-14:01' > > ... > > > Jan 31 05:35:42 apt-setup: warning: > /usr/lib/apt-setup/generators/50mirror returned error code 1; > discarding output > Jan 31 05:35:42 apt-setup: dpkg-divert: warning: diverting file > '/sbin/start-stop-daemon' from an Essential package with rename is > dangerous, use --no-rename > Jan 31 05:35:42 in-target: Get:1 > http://security.debian.org/debian-security bullseye-security InRelease > [27.2 kB] > Jan 31 05:35:42 in-target: Get:2 > http://security.debian.org/debian-security bullseye-security/main > amd64 Packages [340 kB] > Jan 31 05:35:42 in-target: Get:3 > http://security.debian.org/debian-security bullseye-security/main > Translation-en [221 kB] > Jan 31 05:35:43 in-target: Fetched 587 kB in 0s (1,432 kB/s) > Jan 31 05:35:43 in-target: Reading package lists... > Jan 31 05:35:43 in-target: > Jan 31 05:35:43 apt-setup: dpkg-divert: warning: diverting file > '/sbin/start-stop-daemon' from an Essential package with rename is > dangerous, use --no-rename > Jan 31 05:35:43 in-target: Hit:1 > http://security.debian.org/debian-security bullseye-security InRelease > Jan 31 05:35:43 in-target: Reading package lists... > Jan 31 05:35:43 in-target: > Jan 31 05:35:43 apt-setup: dpkg-divert: warning: diverting file > '/sbin/start-stop-daemon' from an Essential package with rename is > dangerous, use --no-rename > Jan 31 05:35:43 in-target: Hit:1 > http://security.debian.org/debian-security bullseye-security InRelease > Jan 31 05:35:43 in-target: Get:2 > http://security.debian.org/debian-security bullseye-security/main > Sources [233 kB] > Jan 31 05:35:43 in-target: Fetched 233 kB in 0s (2,422 kB/s) > Jan 31 05:35:43 in-target: Reading package lists... > > ... > > > Jan 31 05:36:49 in-target: Some packages could not be installed. This > may mean that you have > Jan 31 05:36:49 in-target: requested an impossible situation or if you > are using the unstable > Jan 31 05:36:49 in-target: distribution that some required packages > have not yet been created > Jan 31 05:36:49 in-target: or been moved out of Incoming. > Jan 31 05:36:49 in-target: The following information may help to > resolve the situation: > Jan 31 05:36:49 in-target: > Jan 31 05:36:49 in-target: The following packages have unmet dependencies: > Jan 31 05:36:49 in-target: gnome-core : Depends: gnome-control-center > (>= 1:3.38) but it is not installable > Jan 31 05:36:49 in-target: Depends: gnome-user-docs (>= > 3.38) but it is not installable > Jan 31 05:36:49 in-target: Depends: gnome-sushi (>= > 3.34) but it is not installable > Jan 31 05:36:49 in-target: Depends: yelp (>= 3.38) but > it is not installable > Jan 31 05:36:49 in-target: Depends: zenity (>= 3.32) but > it is not installable > Jan 31 05:36:49 in-target: gnome-online-accounts : Depends: > libgoa-backend-1.0-1 (= 3.38.0-3) but it is not installable > Jan 31 05:36:49 in-target: Depends: > libwebkit2gtk-4.0-37 (>= 2.26) but it is not installable > Jan 31 05:36:49 in-target: Recommends: > gnome-control-center (>= 3.6.1) but it is not installable > Jan 31 05:36:49 in-target: libedataserverui-1.2-2 : Depends: > libwebkit2gtk-4.0-37 (>= 2.25.1) but it is not installable > Jan 31 05:36:49 in-target: libproxy1-plugin-webkit : Depends: > libjavascriptcoregtk-4.0-18 but it is not installable > Jan 31 05:36:49 in-target: E: Unable to correct problems, you have > held broken packages. > Jan 31 05:36:49 in-target: tasksel: apt-get failed (100)
