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This allows a pxe boot implementation # without the ability or knowledge to specify IPAPPEND to function. bootif_new="" if [ -z "$BOOTIF" ]; then for tok in $CMDLINE; do case "$tok" in BOOTIF_DEFAULT=*) wait_for_udev 10 nic2bootif "${tok#BOOTIF_DEFAULT=}" || { echo "WARNING: ${0##*/}: no device $tok" continue } BOOTIF=${_RET} bootif_new=${BOOTIF} ;; esac done fi # if hostname= is on the cmdline and IP=="dhcp", then change IP to # ::::$hostname:BOOTIF:dhcp # This allows old code that specified 'ip=dhcp' to still convince ipconfig to # use a given hostname in dhcp request without requiring '::::$hostname:'. # The '::::$hostname:' without a device name means "wait for all network # devices". If some are not plugged in, then it will hang for quite some time. # # This is really a specific kludge to deal with newer maas needing to operating # with existing original images from 12.04. Those images were not able to # accept 'ip::::$hostname:BOOTIF' as they did not have this package installed. if [ -n "$BOOTIF" -a "$IP" = "dhcp" ]; then for tok in $CMDLINE; do case "$tok" in hostname=*) IP="::::${tok#hostname=}:BOOTIF:dhcp" esac done fi # no IP or IP not containing BOOTIF means nothing to do case $IP in *BOOTIF*) :;; *) exit 0 esac [ -n "$BOOTIF" ] || fail "WARNING: IP='$IP' but no BOOTIF set!" ## we need to "fix" an IP= string that contains 'BOOTIF' ## to instead reference the actual interface. wait_for_udev 10 bootif2macaddr "$BOOTIF" && [ -n "$_RET" ] || fail "failed to convert BOOTIF='$BOOTIF'"; macaddr=${_RET} find_nic_by_mac "$macaddr" && [ -n "$_RET" ] || fail "did no find a nic with $macaddr" devname=${_RET} # now replace occurences of BOOTIF in $IP with $devname cur="$IP" while [ "${cur#*BOOTIF}" != "$cur" ]; do cur="${cur%%BOOTIF*}$devname${cur#*BOOTIF}" done new=$cur # get the global variables IP and BOOTIF reset with updated values { echo "IP='$new'" [ -z "$bootif_new" ] || echo "BOOTIF='${bootif_new}'" } > /conf/param.conf # vi: ts=4 noexpandtab