components/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         debugopt=""
  12         [ "${LIVE_BOOT_DEBUG}" = "true" ] && debugopt="-d 8"
  13         #FIXME this name is supposed to be unique - some date + ifconfig hash?
  14         ISCSI_INITIATORNAME="iqn.1993-08.org.debian.live:01:$(echo "${HWADDR}" | sed -e s/://g)"
  15         export ISCSI_INITIATORNAME
  16         if [ -n "${ISCSI_SERVER}" ] ; then
  17                 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_SERVER}" -p "${ISCSI_PORT}"
  18         else
  19                 iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_PORTAL}" -p 3260
  20         fi
  21         if [ $? != 0 ]
  22         then
  23                 panic "Failed to log into iscsi target"
  24         fi
  25         local host
  26         host="$(ls -d /sys/class/scsi_host/host*/device/iscsi_host:host* \
  27                       /sys/class/scsi_host/host*/device/iscsi_host/host* | sed -e 's:/device.*::' -e 's:.*host::')"
  28         if [ -n "${host}" ]
  29         then
  30                 local devices i
  31                 devices=""
  32                 i=0
  33                 while [ -z "${devices}" -a $i -lt 60 ]
  34                 do
  35                         sleep 1
  36                         devices="$(ls -d /sys/class/scsi_device/${host}*/device/block:* \
  37                                          /sys/class/scsi_device/${host}*/device/block/* | sed -e 's!.*[:/]!!')"
  38                         i=$(expr $i + 1)
  39                         echo -ne $i\\r
  40                 done
  41                 for dev in $devices
  42                 do
  43                         if check_dev "null" "/dev/$dev"
  44                         then
  45                                 NETBOOT="iscsi"
  46                                 export NETBOOT
  47                                 return 0;
  48                         fi
  49                 done
  50                 panic "Failed to locate a live device on iSCSI devices (tried: $devices)."
  51         else
  52                 panic "Failed to locate iSCSI host in /sys"
  53         fi
  54 }