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From b75ab376748ee698763610769601bd81296bd060 Mon Sep 17 00:00:00 2001
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From: Beniamino Galvani <bgalvani@redhat.com>
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Date: Thu, 7 May 2020 07:48:12 +0200
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Subject: [PATCH] network-manager: set kernel hostname from the command line
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Since commit ff70adf873ef ("initrd: save hostname to a file in /run"),
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the initrd generator of NetworkManager parses the hostname from 'ip='
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options of the kernel command line and writes it to
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/run/NetworkManager/initrd/hostname.
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When that file exists, set the kernel hostname.
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In presence of multiple hostnames in the command line, the last one
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wins. Hostnames from command line always have precedence over ones
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received through DHCP. This is a bit different from the legacy network
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module that gives higher precedence to the hostname (from DHCP or
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command line) of the last interface that is brought up, which depends
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on the udev order.
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(cherry picked from commit eb770a4a207b2e9e3080068c1df22b69ed44d4b5)
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Resolves: #1881974
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---
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modules.d/35network-manager/nm-run.sh | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/modules.d/35network-manager/nm-run.sh b/modules.d/35network-manager/nm-run.sh
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index fc5280a1..61752384 100755
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--- a/modules.d/35network-manager/nm-run.sh
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+++ b/modules.d/35network-manager/nm-run.sh
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@@ -10,6 +10,10 @@ for i in /usr/lib/NetworkManager/system-connections/* \
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else
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/usr/sbin/NetworkManager --configure-and-quit=initrd --no-daemon
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fi
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+
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+ if [ -s /run/NetworkManager/initrd/hostname ]; then
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+ cat /run/NetworkManager/initrd/hostname > /proc/sys/kernel/hostname
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+ fi
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break
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done
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