Bug#996667: kernel panic with kernel upgrade on diskless PXE + NFS system

From	debian@good-with-numbers.com
Newsgroups	linux.debian.bugs.rc
Subject	Bug#996667: kernel panic with kernel upgrade on diskless PXE + NFS system
Date	2021-10-17 05:30 +0200
Message-ID	<D9522-8fe-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Package: linux-image-4.19.0-17-amd64
Version: 4.19.194-3
Severity: critical


I have the following packages installed:

linux-image-4.19.0-16-amd64
linux-image-4.19.0-17-amd64
linux-image-4.19.0-18-amd64

The system boots PXE on NFS--completely diskless.  eth0 connects to the
PXE/NFS server.  The -16 release runs just fine.  I tried to upgrade to
the -18, and then -17, releases by switching the PXE configuration, but
both failed.  The -18 release failed at:

----------------------------------------------------------------------
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/nfs-top ... done.
Begin: Running /scripts/nfs-premount ... done.
ipconfig: eth0: SIOCGIFINDEX: No such device
ipconfig: no devices to configure
ipconfig: eth0: SIOCGIFINDEX: No such device
ipconfig: no devices to configure
ipconfig: eth0: SIOCGIFINDEX: No such device
ipconfig: no devices to configure
ipconfig: eth0: SIOCGIFINDEX: No such device
ipconfig: no devices to configure
ipconfig: eth0: SIOCGIFINDEX: No such device
ipconfig: no devices to configure
ipconfig: eth0: SIOCGIFINDEX: No such device
ipconfig: no devices to configure
ipconfig: eth0: SIOCGIFINDEX: No such device
ipconfig: no devices to configure
ipconfig: eth0: SIOCGIFINDEX: No such device
ipconfig: no devices to configure
ipconfig: eth0: SIOCGIFINDEX: No such device
ipconfig: no devices to configure
ipconfig: eth0: SIOCGIFINDEX: No such device
ipconfig: no devices to configure
/init: .: line 275: can't open '/run/net-eth0.conf': No such file or directory
[    4.xxxxxx] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000200
----------------------------------------------------------------------

etc.  (Retyped from a photo.)  The -17 release output is the same.

I don't know what file "line 275" refers to.

There were a lot of updates from 4.19.181-1 to 4.19.194-3.

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Bug#996667: kernel panic with kernel upgrade on diskless PXE + NFS system debian@good-with-numbers.com - 2021-10-17 05:30 +0200

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