File mkinitrd-setup-qeth.sh of Package s390-tools
#!/bin/bash
#
#%stage: device
#%depends: network
#
if [ "$interface" ] ; then
devpath=$(cd -P "/sys/class/net/$interface/device"; echo $PWD)
ccwid=${devpath##*/}
devtype=${devpath%/*}
devtype=${devtype##*/}
if [ -f /etc/udev/rules.d/51-${devtype}-${ccwid}.rules ] ; then
cp /etc/udev/rules.d/51-${devtype}-${ccwid}.rules $tmp_mnt/etc/udev/rules.d
load_qeth=1
fi
fi