Re: Debian installer - mirror does not support trixie

From	Sam Sırri <samsirry@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: Debian installer - mirror does not support trixie
Date	2026-05-17 08:40 +0200
Message-ID	<MVDkl-5KT1-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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> I keep getting an error message that the mirror is not correct. On
terminal 4 I can see a warning: mirror does not support the
specified release (trixie).

This error seems to happen when the system is connected to an IPv6-only
network.
The DHCP client bundled with the installer manages to get an IPv6
reservation, however, it seems the installer fails to actually assign this
IP to the network interface.
Eventually, the system is left without connectivity to the public internet,
and it thinks the mirror has failed, producing the error: "mirror does not
support the specified release".

There's a bug being tracked about this:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1072526 from June 2024.
Unfortunately the fix is not yet merged into the stable version:
https://salsa.debian.org/installer-team/netcfg/-/merge_requests/18

The solution is to either use an IPv4 network, or configure the IPv6
connection manually, in the console, using the `ip` command. Modern LLMs
should be helpful for crafting such commands.

Sam/

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Re: Debian installer - mirror does not support trixie Sam Sırri <samsirry@gmail.com> - 2026-05-17 08:40 +0200

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