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--- auto_mount_external_drive_at_startup_ubuntu_server_22_04 [2023/07/19 18:50] – wikiadmin
+++ auto_mount_external_drive_at_startup_ubuntu_server_22_04 [2023/07/19 19:50] (current) – wikiadmin
@@ Line 1: / Line 1: @@
 ====== Auto Mount External Drive at Startup in Ubuntu Server 22.04 ======
+**I AM NOT TAKING ANY CHANCES OF MOUNTING ANYTHING. THERE IS A 2TB HARDWARE RAID-1 MIRROR THAT IS MOUNTED, AND I DON'T WANT THE 4TB USB SSD DRIVE TO CONFLICT WITH THAT WHEN THE SYSTEM REBOOTS. IT APPEARS THAT UBUNTU IS SWITCHING THE MOUNTS OF THE /SDA AND THE /SDB AFTER A REBOOT.**
+However, I will keep the documentation below until such time as I figure out how to do this without any conflicts, and amend the entire process accordingly.
 See: [[https://developerinsider.co/auto-mount-drive-in-ubuntu-server-22-04-at-startup/]]
@@ Line 173: / Line 177: @@
 </code>
+Run the Fdisk again:
+<code>
+sudo fdisk -l
+</code>
+Disk /dev/loop0: 111.95 MiB, 117387264 bytes, 229272 sectors
+Units: sectors of 1 * 512 = 512 bytes
+Sector size (logical/physical): 512 bytes / 512 bytes
+I/O size (minimum/optimal): 512 bytes / 512 bytes
+Disk /dev/loop1: 53.26 MiB, 55844864 bytes, 109072 sectors
+Units: sectors of 1 * 512 = 512 bytes
+Sector size (logical/physical): 512 bytes / 512 bytes
+I/O size (minimum/optimal): 512 bytes / 512 bytes
+Disk /dev/loop2: 53.26 MiB, 55844864 bytes, 109072 sectors
+Units: sectors of 1 * 512 = 512 bytes
+Sector size (logical/physical): 512 bytes / 512 bytes
+I/O size (minimum/optimal): 512 bytes / 512 bytes
+Disk /dev/loop3: 63.45 MiB, 66527232 bytes, 129936 sectors
+Units: sectors of 1 * 512 = 512 bytes
+Sector size (logical/physical): 512 bytes / 512 bytes
+I/O size (minimum/optimal): 512 bytes / 512 bytes
+Disk /dev/loop4: 63.45 MiB, 66531328 bytes, 129944 sectors
+Units: sectors of 1 * 512 = 512 bytes
+Sector size (logical/physical): 512 bytes / 512 bytes
+I/O size (minimum/optimal): 512 bytes / 512 bytes
+The backup GPT table is corrupt, but the primary appears OK, so that will be used.
+Disk /dev/sda: 3.81 TiB, 4194304000000 bytes, 1024000000 sectors
+Disk model: UDisk
+Units: sectors of 1 * 4096 = 4096 bytes
+Sector size (logical/physical): 4096 bytes / 4096 bytes
+I/O size (minimum/optimal): 4096 bytes / 4096 bytes
+Disklabel type: gpt
+Disk identifier: AB3F7F29-78F9-46D2-90C7-B2FC88C5E922
+Device     Start        End    Sectors  Size Type
+/dev/sda1      6       4095       4090   16M Microsoft reserved
+/dev/sda2   4096 1023999993 1023995898  3.8T Microsoft basic data
+Disk /dev/sdb: 1.82 TiB, 1999844147200 bytes, 3905945600 sectors
+Disk model: Virtual Disk
+Units: sectors of 1 * 512 = 512 bytes
+Sector size (logical/physical): 512 bytes / 512 bytes
+I/O size (minimum/optimal): 512 bytes / 512 bytes
+Disklabel type: gpt
+Disk identifier: 299F1292-7D64-4846-83BD-CF8BD5034D74
+Device       Start        End    Sectors  Size Type
+/dev/sdb1     2048       4095       2048    1M BIOS boot
+/dev/sdb2     4096    4198399    4194304    2G Linux filesystem
+/dev/sdb3  4198400 3905943551 3901745152  1.8T Linux filesystem
+Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 1.82 TiB, 1997692469248 bytes, 3901743104 sectors
+Units: sectors of 1 * 512 = 512 bytes
+Sector size (logical/physical): 512 bytes / 512 bytes
+I/O size (minimum/optimal): 512 bytes / 512 bytes
+</code>
+So, this part of the above results looks like the external USB SSD drive we want to mount, and automount:
+<code>
+Disk /dev/sda: 3.81 TiB, 4194304000000 bytes, 1024000000 sectors
+Disk model: UDisk
+Units: sectors of 1 * 4096 = 4096 bytes
+Sector size (logical/physical): 4096 bytes / 4096 bytes
+I/O size (minimum/optimal): 4096 bytes / 4096 bytes
+Disklabel type: gpt
+Disk identifier: AB3F7F29-78F9-46D2-90C7-B2FC88C5E922
+Device     Start        End    Sectors  Size Type
+/dev/sda1      6       4095       4090   16M Microsoft reserved
+/dev/sda2   4096 1023999993 1023995898  3.8T Microsoft basic data
+</code>
+It does not specify that this USB SSD Drive is exFat, but I know it to exFat by connecting it to a Windows system and looking at its format.
+I believe that we need to mount /dev/sda2 which is the 4TB (3.8TB) external USB SSD drive.  And it appears that the Disk Identifier is:
+<code>
+AB3F7F29-78F9-46D2-90C7-B2FC88C5E922
+</code>
+**BEWARE THERE ARE MIXED READINGS NOW!
+LOOK AT THIS BELOW AND COMPARE
+**
+<code>
+lsblk -o NAME,FSTYPE,UUID,MOUNTPOINTS
+</code>
+Results:
+<code>
+NAME                      FSTYPE      UUID                                   MOUNTPOINTS
+loop0                     squashfs                                           /snap/lxd/24322
+loop1                     squashfs                                           /snap/snapd/19457
+loop2                     squashfs                                           /snap/snapd/19361
+loop3                     squashfs                                           /snap/core20/1950
+loop4                     squashfs                                           /snap/core20/1974
+sda
+├─sda1
+└─sda2
+sdb
+├─sdb1
+├─sdb2                    ext4        94e62aba-77a5-45db-a9ba-ca358fa589df   /boot
+└─sdb3                    LVM2_member hXjBKC-htj8-a0Zn-El2e-C3Jk-Y24f-e3S0bN
+  └─ubuntu--vg-ubuntu--lv ext4        0d6b481f-ec40-4951-b6d7-76ba4cde2dfb   /
+sr0
+</code>
+**I AM NOT TAKING ANY CHANCES OF MOUNTING ANYTHING.  THERE IS A 2TB HARDWARE RAID-1 MIRROR THAT IS MOUNTED, AND I DON'T WANT THE 4TB USB SSD DRIVE TO CONFLICT WITH THAT WHEN THE SYSTEM REBOOTS.  IT APPEARS THAT UBUNTU IS SWITCHING THE MOUNTS OF THE /SDA AND THE /SDB AFTER A REBOOT.
+**