/lib/live/boot/9990-netboot.sh is in open-infrastructure-system-boot 20161101-lts2-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | #!/bin/sh
#set -e
do_netmount()
{
do_netsetup
if [ "${NFSROOT}" = "auto" ]
then
NFSROOT=${ROOTSERVER}:${ROOTPATH}
fi
rc=1
if ( [ -n "${FETCH}" ] || [ -n "${HTTPFS}" ] || [ -n "${FTPFS}" ] )
then
do_httpmount
return $?
fi
if [ "${NFSROOT#*:}" = "${NFSROOT}" ] && [ "$NETBOOT" != "cifs" ]
then
NFSROOT=${ROOTSERVER}:${NFSROOT}
fi
log_begin_msg "Trying netboot from ${NFSROOT}"
if [ "${NETBOOT}" != "nfs" ] && do_cifsmount
then
rc=0
elif do_nfsmount
then
NETBOOT="nfs"
export NETBOOT
rc=0
fi
log_end_msg
return ${rc}
}
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