First commit

mount_disk_by_lun.sh

+#!/bin/bash
+
+# This script mounts a drive that has
+#  - ONLY ONE PARTITION
+#  - IS STILL UNMOUNTED (does not have a mountpoint)
+#
+# USAGE: mount_disk_by_lun.sh <LUN>
+#   <LUN>: Logical Unit Number, specified in Azure when attaching the disk to
+#          the VM.
+#
+# ERROR CODES: The script with the following error codes:
+#     (1) Illegal number of arguments
+#     (2) No drives are assigned to the provided LUN
+#     (3) There are more than one drives on the provided LUN
+#     (4) The LUN-assigned drive is not partitioned
+#     (5) There are more than one partitions
+#     (6) The partition is already mounted
+#     (7) The drive is not formatted as "ext4"
+
+
+if [[ $# -ne 1 ]]; then
+    echo "[ERROR] Provide LUN as argument (HOST:CHANNEL:TARGE:LUN)"
+    echo "USAGE: mount_disk_by_lun.sh <LUN>"
+    exit 1
+fi
+
+LUN=$1
+DEV=( $( lsblk -o NAME,HCTL,TYPE | grep "^sd" | awk -v lun=$LUN 'BEGIN{regexp="^[0-9]+:[0-9]+:[0-9]+:"lun"$"}{if ($2 ~ regexp && $3 ~ /disk/) { print $1 }}' ) )
+
+if [[ -z "$DEV" ]]; then
+    echo "[ERROR] No device found with LUN=$LUN"
+    exit 2
+fi
+
+if [[ "${#DEV[@]}" -ne 1 ]]; then
+    echo "[ERROR] More than one disk on LUN=$LUN:"
+    printf '/dev/%s ' "${DEV[@]}" | xargs lsblk -o NAME,HCTL,SIZE,TYPE
+    exit 3
+fi
+
+
+DEV=${DEV[0]}
+
+# Find out whether the disk has partitions
+PART=( $( lsblk -o NAME,TYPE,MOUNTPOINT /dev/$DEV | awk '$2 ~ "part"{ print $1 }' ) )
+MNTPT=( $( lsblk -o NAME,TYPE,MOUNTPOINT /dev/$DEV | awk '$2 ~ "part"{ print $3 }' ) )
+FS=( $( lsblk -o NAME,TYPE,FSTYPE /dev/$DEV | awk '$2 ~ "part"{ print $3 }' ) )
+PTNAME=( $( lsblk -o KNAME,TYPE,FSTYPE /dev/$DEV | awk '$2 ~ "part"{ print $1 }' ) )
+
+if [[ "${#PART[@]}" -eq 0 ]]; then
+    echo "Disk /dev/$DEV is not partitioned (ONE partition required)"
+    lsblk -o NAME,HCTL,SIZE,TYPE,MOUNTPOINT,FSTYPE /dev/$DEV
+    exit 4
+fi
+
+if [[ "${#PART[@]}" -gt 1 ]]; then
+    echo "Disk /dev/$DEV has more than one partition (${#PART[@]}). Only ONE partition allowed"
+    lsblk -o NAME,TYPE,MOUNTPOINT,FSTYPE /dev/$DEV
+    exit 5
+fi
+
+if [[ "${#MNTPT[@]}" -gt 1 ]]; then
+    echo "[ERROR] UNEXPECTED ERROR: one partition, several mount points (???)"
+    exit 98
+fi
+
+if [[ "${#FS[@]}" -gt 1 ]]; then
+    echo "[ERROR] UNEXPECTED ERROR: one partition, one (or none) mount point, several File systems (???)"
+    exit 99
+fi
+
+MNTPT=${MNTPT[0]}
+FS=${FS[0]}
+PTNAME=${PTNAME[0]}
+
+if [[ ! -z "${MNTPT}" ]]; then
+    echo "[ERROR] The partition is already mounted"
+    lsblk -o NAME,HCTL,SIZE,TYPE,MOUNTPOINT,FSTYPE /dev/${PTNAME}
+    exit 6
+fi
+    
+if [[ ${FS} == "ext2" || ${FS} == "ext3" || ${FS} == "ext4" ]]; then
+    echo "LUN=${LUN}: one partition in ext fileformat without mountpoint:"
+    lsblk -o NAME,KNAME,HCTL,SIZE,TYPE,FSTYPE /dev/${DEV}
+    sudo mkdir /bsdata
+    if [[ $? == 0 ]]; then
+        sudo mount /dev/${PTNAME} /bsdata
+        if [[ $? == 0 ]]; then
+            echo "MOUNTED IN /bsdata"
+        else
+            echo "[ERROR] Could not mount in /bsdata"
+        fi
+    else
+        echo "[ERROR] The folder /bsdata exists already"
+    fi
+else
+    echo "[ERROR] The partition is not in ext2, ext3 or ext4 format"
+    exit 7
+fi
+
+
+
+