echo "${blue}Checking whether PXE bridge ${pxe_bridge} exists${reset}"
if ! brctl show ${pxe_bridge} 2>&1 | grep -i 'No such device'; then
echo "${blue}PXE bridge detected. Removing...${reset}"
- if ifconfig | grep ${pxe_bridge}; then
- ifdown ${pxe_bridge}
+ link_state=$(ip link show ${pxe_bridge} | grep -oP 'state \K[^ ]+')
+ if [[ ${link_state} != 'DOWN' ]]; then
+ ip link set dev ${pxe_bridge} down
+ sleep 5
+ link_state=$(ip link show ${pxe_bridge} | grep -oP 'state \K[^ ]+')
+ if [[ ${link_state} != 'DOWN' ]]; then
+ echo "${red}Could not bring DOWN bridge ${pxe_bridge} link state is ${link_state}${reset}"
+ exit 1
+ fi
fi
brctl delbr ${pxe_bridge}
if ifconfig | grep ${pxe_bridge} || brctl show | grep ${pxe_bridge}; then