scripts/boot/9990-mount-iscsi.sh

   1 #!/bin/sh
   2
   3 #set -e
   4
   5 do_iscsi()
   6 {
   7         do_netsetup
   8         #modprobe ib_iser
   9         modprobe iscsi_tcp
  10         local debugopt=""
  11         [ "${DEBUG}" = "true" ] && debugopt="-d 8"
  12         #FIXME this name is supposed to be unique - some date + ifconfig hash?
  13         ISCSI_INITIATORNAME="iqn.1993-08.org.debian.live:01:$(echo "${HWADDR}" | sed -e s/://g)"
  14         export ISCSI_INITIATORNAME
  15         if [ -n "${ISCSI_SERVER}" ] ; then
  16                 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_SERVER}" -p "${ISCSI_PORT}"
  17         else
  18                 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_PORTAL}" -p 3260
  19         fi
  20         if [ $? != 0 ]
  21         then
  22                 panic "Failed to log into iscsi target"
  23         fi
  24         local host="$(ls -d /sys/class/scsi_host/host*/device/iscsi_host:host* \
  25                             /sys/class/scsi_host/host*/device/iscsi_host/host* | sed -e 's:/device.*::' -e 's:.*host::')"
  26         if [ -n "${host}" ]
  27         then
  28                 local devices=""
  29                 local i=0
  30                 while [ -z "${devices}" -a $i -lt 60 ]
  31                 do
  32                         sleep 1
  33                         devices="$(ls -d /sys/class/scsi_device/${host}*/device/block:* \
  34                                          /sys/class/scsi_device/${host}*/device/block/* | sed -e 's!.*[:/]!!')"
  35                         i=$(expr $i + 1)
  36                         echo -ne $i\\r
  37                 done
  38                 for dev in $devices
  39                 do
  40                         if check_dev "null" "/dev/$dev"
  41                         then
  42                                 NETBOOT="iscsi"
  43                                 export NETBOOT
  44                                 return 0;
  45                         fi
  46                 done
  47                 panic "Failed to locate a live device on iSCSI devices (tried: $devices)."
  48         else
  49                 panic "Failed to locate iSCSI host in /sys"
  50         fi
  51 }