initramfs-tools: setting the hostname obtained with dhcp (Bug 18466)

El mar, 22-11-2005 a las 16:24 -0800, Matt Zimmerman escribió:
[...]
> Does klibc or busybox have a hostname command?  It would be simpler to set
> it in early userspace and be done with it.

Actually, busybox does.
Anyway, since the procfs is the same before and after the initramfs, and
the real 'hostname' is stored in '/proc/sys/kernel/hostname', we could
just set the hostname there by echoing.
For example:
<file='scripts/nfs-bottom/hostname'>
...

. /tmp/net-${DEVICE}.conf

if [ -n ${HOSTNAME} ]; then
   echo ${HOSTNAME} > /proc/sys/kernel/hostname
fi

...
</file>



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