I have external hard drive box(with external power) with 8TB disk inside it. I added it to /etc/fstab as follows:
/dev/sdc2 /big ext4 rw,nosuid,nodev,relatime,nofail,data=ordered 0 0
The disk dosn't mount during boot. And I can't mount it manualy using sudo mount /dev/sdc2 beacuse I don't see the disk in /dev/.
Please advise me, what should I do in order to mount the disk automatically. The disk can't be seen in lsusb neigher.
What I have already tried:
nofail keyword. This causes that during boot I get the following:Welcome to emergency mode! After logging in, type "journalctl -xb" to view system logs, "systemctl reboot" to reboot, "systemctl default" to try again to boot into default mode.
I tried to replace /dev/sdc2 with UUID=..., but it doesn't have any impact.
I tried turning the disk on and off using physical power button on the disk box. - This helped! The disk appeared in /dev, it was mounted automatically and it appeard in lsusb as:
Bus 004 Device 002: ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge
I plan to use the computer with the disk remotely, so I need that it is mounted automatically and not manualy by turingn the switch on and off.
Thanks in advance.
EDIT2: I use the following hardware:
External box AKASA AK-TL3SEB-BK Lokstor X31, 3,5"
HDD Seagate Archive, 3,5", SATAIII, 128MB - 8TB
laptop Lenovo IdeaPad U410
EDIT3: I believe that external box was defective. I did tried to connect the enclosure to USB2.0 and it didn't work at all, I tried to connect the enclosure to other computers and to computer with windows and it didn't work. I thank to @LDJames, for his suggestion in comments, that the enclosure might be broken and for his suggestion to buy new enclosure. I brought new one and everything works perfectly. I marked his answer as accepted and I am very greatful.
It's possible the device isn't available during the boot process. You can address your real concern by having the disk available by adding a script to start it to your /etc/rc.local file... a file which is automatically run after the system comes up.
Just make a script such as /usr/local/bin/mountdrive.sh and add that line to the /etc/rc.local file.
/usr/local/bin/mountdrive.sh:
#!/bin/bash
mount /dev/sdc2
Alternatively, to avoid getting the already mounted error you could use this in your mountdrive.sh file:
#!/bin/bash
mountpoint -q /big && mount /big
Results of testing your fstab entry:
I attached a USB Seagate 4 Gig Drive and used the exact entry and got success. After this I modified the entry to use the UUID in case the drive specification changes. You can get the UUID of your /dev/sda1 partition with:
$ lsblk -o name,mountpoint,label,size,uuid,fstype
This is the modified fstab line that also works:
UUID=2a14ecf1-e4f6-45fb-8cb7-5c5317e3189e /big ext4 rw,nosuid,nodev,relatime,nofail,data=ordered 0 0
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