with /etc/fstab.
# In this version only ext* and JFS file systems are 
# supported with fsck before mount.
### END INIT INFO

# Author: Charles Atkinson <c@charlesmatkinson.org>

. /lib/init/vars.sh
. /lib/lsb/init-functions
regex='^#|^$'
shopt -s extglob


do_start () {
 log_begin_msg "Mounting iscsi-backed filesystems"$'\n'

 my_fstab=/etc/fstab-iscsi
 [[ -r $my_fstab ]] || { log_failure_msg "Cannot read $my_fstab" exit 1; }

 # For each line of my fstab
 mount_fail=0
 line_n=0
 while read -r special mountpoint type options dump pass spurious
 do
 ((line_n++))
 [[ $special =~ $regex ]] && continue
 [[ $pass = '' ]] && pass=$dump
 if [[ $spurious != '' ]]; then
 log_warning_msg "Spurious data on line $line_n of $my_fstab: $spurious"
 continue
 fi

 # Normalise the special value
 if [[ $special =~ ^LABEL= || $special =~ ^UUID= ]]; then
 buf=$(findfs "$special" 2>&1)
 if (($?>0)); then
 log_warning_msg "Cannot find the file system corresponding to '$special'"
 continue
 fi
 special_norm=$buf
 elif [[ $special =~ ^/dev/ ]]; then
 buf=$(readlink --canonicalize -- "$special" 2>&1)
 if (($?>0)); then
 log_warning_msg "Problems running readlink for $special: $buf" 
 continue
 fi
 special_norm=$buf
 else
 log_warning_msg "Invalid special on $my_fstab, line $line_n: $special"
 continue
 fi
 #echo "DEBUG: special:$special, mountpoint:$mountpoint,type:$type,options:$options, pass:$pass" >&2

 # Check for existing mounts
 mounted_flag=0
 while read -r pm_fs_spec pm_mountpoint _
 do
 if [[ $pm_fs_spec = $special_norm ]]; then
 mounted_flag=1
 log_warning_msg "$special_norm is already mounted on $pm_mountpoint"
 fi 
 done < <(cat /proc/mounts)

 # Run file system check if possible and indicated
 if ((mounted_flag==0)); then
 fsck_flag=0
 case $type in
 ext* )
 tune2fs_out=$(tune2fs -l "$special_norm" 2>&1)
 if (($?>0)); then
 log_warning_msg "Can't list $special_norm file system parameters: $tune2fs_out"
 continue
 fi

 buf=${tune2fs_out##*Filesystem state:*( )}
 filesystem_state=${buf%%$'\n'*}
 [[ $filesystem_state != clean ]] && fsck_flag=1
 #echo "DEBUG: filesystem_state:$filesystem_state" >&2

 buf=${tune2fs_out##*Maximum mount count:*( )}
 max_mount_count=${buf%%$'\n'*}

 buf=${tune2fs_out##*Mount count:*( )}
 mount_count=${buf%%$'\n'*}
 ((mount_count>max_mount_count)) && fsck_flag=1
 #echo "DEBUG: max_mount_count:$max_mount_count, mount_count:$mount_count" >&2

 buf=${tune2fs_out##*Check interval:*( )}
 check_interval=${buf%% *}
 #echo "DEBUG: check_interval:$check_interval" >&2
 if ((check_interval>0)); then
 buf=${tune2fs_out##*Last checked:*( )}
 last_checked=${buf%%$'\n'*}
 #echo "DEBUG: last_checked:$last_checked" >&2
 last_checked_secs=$(date "--date=$last_checked" +%s)
 now=$(date +%s)
 #echo "DEBUG: last_checked_secs:$last_checked_secs, now:$now" >&2
 (((now-last_checked_secs)>check_interval)) && fsck_flag=1
 fi
 ;;
 jfs )
 jfs_tune_out=$(jfs_tune -l "$special_norm")
 if (($?>0)); then
 log_warning_msg "Can't list file system parameters: $jfs_tune_out"
 continue
 fi

 buf=${jfs_tune_out##*JFS state:*([[:space:]])}
 jfs_state=${buf%%$'\n'*}
 #echo "DEBUG: jfs_state:$jfs_state" >&2
 [[ $jfs_state != clean ]] && fsck_flag=1
 ;;
 esac

 if ((fsck_flag==1)); then
 # fsck option -p is OK for fsck.ext[234] and for jfs_fsck`
 fsck -Tp "$special_norm"
 fi
 fi

 # Mount
 mount -t $type -o $options $special $mountpoint || mount_fail=1

 done < <(cat "$my_fstab")

 if ((mount_fail==0)); then
 exit 0
 else
 exit 1
 fi
}


case "$1" in
 start)
 do_start
 ;;
 restart|reload|force-reload)
 echo "Error: argument '$1' not supported" >&2
 exit 3
 ;;
 stop|"")
 # No-op
 ;;
 *)
 echo "Usage: mountiscsi.sh start" >&2
 exit 3
 ;;
esac