Łukasz, You do need to remove (comment out) all sources (e.g. bookworm/trixie) and only leave sid. This may solve your issue.
After creating a VM using Virt-Manager, I do get a ipv6 address, and I do not get the message "Link local ipv6 for interface is not configured" when checking journalctl output. To check for the message I used the command: # journalctl | grep -i ipv6 Longer explanation, is, this is what I did: I built a headless server (e.g. no GUI) stable bookworm installation, and then after the installation, commented out all sources, then added sid and sources for sid. deb https://ftp.debian.org/debian/ sid contrib main non-free non-free-firmware deb-src https://ftp.debian.org/debian/ sid contrib main non-free non-free-firmware # apt update # apt full-upgrade -y # systemctl reboot (log in again) Edit /etc/network/interfaces and after 'iface enp1s0 inet dhcp' added iface enp1s0 inet6 dhcp Then rebooted the VM # systemctl reboot (log in again) Checked and saw there was an ipv6 ip address: # ip -6 a Checked for ipv6 messages but cannot find any message "Link local ipv6 for interface is not configured". # journalctl | grep -i ipv6 ... list of IPv6 log messages were displayed... Let me know if I can help further? George. On Wednesday, 31-07-2024 at 18:53 Łukasz Kalamłacki wrote: > Hi, > > I had besides sid also trixie sources but I bet that with only sid the > result will be the same. > Could you try to reproduce on VirtualBox at your side. You do not need > dhcpv6 server. In normal behavior you should get timeout, but this bug will > cause quick end with error from the first post. > > Best regards, > Łukasz > > śr., 31 lip 2024 o 10:35 Andrew M.A. Cater napisał(a): > > > On Wed, Jul 31, 2024 at 08:33:28AM +0200, Łukasz Kalamłacki wrote: > > > Hi, > > > > > > I added only this to sources list: > > > > > > deb http://deb.debian.org/debian/ sid main contrib non-free > > > > > > and nothing else > > > > > > Best regards, > > > Łukasz > > > > > > > So that was the _only_ line in your /etc/apt/sources.list at that point? > > > > You install testing - upgrade as far as you can - then delete everything > > in /etc/apt/sources.list and replace it with the line above? > > > > If you end up with an accidental mixture of trixie and sid, it would > > be very hard to work out how to disentangle it. > > > > Andy > > > > > > > In my network I use DHCPv6 server which works fine on stable > > versions of > > > > > Debian or Trixie but when I add to sources.list sid source and do > > update > > > > > > > > Please let us know what you have added and also what you have in > > > > "sources.list sid source" > > > > > > > > Did you add something (or change?) something to /etc/apt/sources.list ? > > > > > > > > Did you change anything else? > > > > > > > > George. > > > > > > > > > > > > > > > > > and upgrade I get and error that: > > > > > > > > > > "Link local ipv6 for interface is not configured" in syslog and > > > > > systemctl is reporting failed networking service and only ipv4 > > > > > addressing is available. > > > > > > > > > > > > > > > configuration in /etc/network/interfaces > > > > > > > > > > auto enp0s3 > > > > > > > > > > iface enp0s3 inet dhcp > > > > > > > > > > iface enp0s3 inet6 dhcp > > > > > > > > > > > > > > > What is interesting when the system is already running I can do: > > > > > > > > > > dhclient -6 enp0s3 > > > > > > > > > > and I get ipv6 address correctly > > > > > > > > > > > > > > > The problem is reproducible on Virtualbox: just install testing > > Debian > > > > > and add sid to source.list and do update/upgrade in apt. > > > > > > > > > > > > > > > The issue is very strange because during upgrade to SID I do not see > > > > > installation of any networking packages. > > > > > > > > > > > > > > > What do you think? > > > > > > > > > > > > > > > Best regards, > > > > > > > > > > Łukasz > > > > > > > > > > > > > > > > > > > > > > >
