Usb external drive same size disk won't mount

[croque]

hi, any help would be appreciated, found a problem when two usb external drive with the same size 5tb, only one disk is mounted, current setup dell optiplex 3000 micro pc.

[Zima-Giorgio]

First, if you are familiar with CLI, you can run lsblk and forward the output/result here.

Useful steps for the CLI:

1. Enter CLI(Settings-> General-> Developer mode view-> SSH Access enable → Web-based terminal)

2. Log in

3. Run these commands after logging in:

# In some cases, you need to switch to root
# You may need to type the password again
sudo -i

lsblk
# lsblk output...

Second, check if you used a supported FS. If not, create one.

Be careful and know what you will do. !!! Create a supported FS on your drive.

# Switch to root
sudo -i

# View the device name
lsblk

# If it is mounted, you need to unmount it first
# This command is used to unmount the mounted storage device partition
# The square brackets represent the currently mounted storage device partition
# umount /dev/[sde1] 


# This command is used to delete the entire storage partition and file system
# The square brackets represent the currently detected [storage device name]
wipefs /dev/[sde] 

# This command is used to create a file system
# The square brackets represent the name of the storage device currently detected
# You can also use this file system mkfs.exfat /dev/[sde]
mkfs.ext4 /dev/[sde]

Look forward to your feedback.

[croque]

hi already formatted the drive on windows and the command you gave, but still drive wont mount.