zfs hostId: Instructions to derive from machine-id
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The 32-bit host ID of the machine, formatted as 8 hexadecimal characters.
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You should try to make this ID unique among your machines. You can
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generate a random 32-bit ID using the following command:
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generate a random 32-bit ID using the following commands:
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<literal>cksum /etc/machine-id | while read c rest; do printf "%x" $c; done</literal>
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(this derives it from the machine-id that systemd generates) or
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<literal>head -c4 /dev/urandom | od -A none -t x4</literal>
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'';
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};
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