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From: maya@zenmaya.xyz To: guix-devel@gnu.org Subject: Debugging failing shepherd startup Date: Fri, 21 Jun 2024 15:27:07 +0200 Message-ID: <87a5je77f8.fsf@zenmaya.xyz> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Received-SPF: pass client-ip=91.218.175.170; envelope-from=maya@zenmaya.xyz; helo=out-170.mta0.migadu.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Fri, 21 Jun 2024 12:56:51 -0400 X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: guix-devel-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN X-Migadu-Queue-Id: 605EE38F86 X-Migadu-Scanner: mx13.migadu.com X-Migadu-Spam-Score: -9.66 X-Spam-Score: -9.66 X-TUID: LTIWRswPTsQS --=-=-= Content-Type: text/plain Hi, I have an issue with my Guix configuration. From a certain update my system fails to boot. It successfully boots into kernel and starts shepherd. But after that shepherd fails to activate some necessary service and the system is softlocked. The problem is that I can't neither control the system in the booted state at that point nor I can check the logs, as logd wasn't started yet, so kernel messages are only preserved in memory and on the screen. But I cannot scroll the screen, and can't interact with the system in any way. I can at least display some of them with disabling silent kernel, but the issue is the root cause is scrolled away too fast to be read. My question is, is there a way to debug this? I mostly need help with identifying the failing service, once I have it, I think I can sort it out. Best regards, Maya --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEszXKRHy2TUbC4XjGNgSh1KkHV5kFAmZ1f6sACgkQNgSh1KkH V5klmhAAnBgtMTn2nwihYPjaWbN/gUhCspIklZj+PL+0TPSjc3XxpTv+HLW7YCPD bP8NhAnAmSKiMXHeHmJNGEiO3y3VH20fwcsF17cReOp357OuemxO3JMPOr/SGt9p l6glS0XxBEohTLc+ier+PZvwyRZ4QtiQE3Hi0rYwjmsEwT61avsgLPtbuIJ97tPF yk6U6GyTXyiaYjOf++bDYTcvApWHzMKlNwTSzVy9Xvm/uwv5bl1gVooLa68p72cp cQ047UjXsrE3VZwrWdCUFsnYAyferTq9ueZJI+hKwQP2QJv6EAdcQEjaSTJ38q1H VBUel7En1sK8PLv2acP1ybZcWg24ykhfZ3a5pmFOcQYD+pcl1cpxZs7IiYA2jmCa 0k0rh7Ty1SVMztc1BlXQRtnJ6UjVA4/JkSmiNCrYZ0oMceXMqWdqXq+V4cwMHm9U YT0lUE9orOtUI8hoJKe/gdLJoVs0aRrzEblmZKtUDCtcGiR6BDLKIxh2JBsnYGuS lYvrHuVaJukROtJ/rw8Gl5NvWr5KVN7NtafNmFkNagpru8bc65bGWOJA/iFvu7F8 9vEEhiy5xrEXccHKSIhLs9MAOrQGEKp6XmaZc7RZoaKqdSApcqnpEExMFHwJPteQ a8qQg7WxD40OmeJGC5iT3aMTk5i8JIeILvnimhCD4mybDUkYb0o= =r1YU -----END PGP SIGNATURE----- --=-=-=--