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networking.hostId: fix cmd in description

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1. Simplify the command by reading directly from /etc/machine-id which
is already a random, lower-case hex string
2. Previously, the command output could be too short because of missing
leading digits. This is now fixed.
This commit is contained in:
Erik Arvstedt 2018-09-10 21:44:48 +02:00
parent 189b861638
commit 7a42623c23
1 changed files with 1 additions and 1 deletions
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2
nixos/modules/tasks/network-interfaces.nix
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@ -341,7 +341,7 @@ in
You should try to make this ID unique among your machines. You can You should try to make this ID unique among your machines. You can
generate a random 32-bit ID using the following commands: generate a random 32-bit ID using the following commands:
<literal>cksum /etc/machine-id | while read c rest; do printf "%x" $c; done</literal> <literal>head -c 8 /etc/machine-id</literal>
(this derives it from the machine-id that systemd generates) or (this derives it from the machine-id that systemd generates) or