Using a New Hard Disk on Ubuntu
A guide on formatting and mounting a new physical disk on Ubuntu.
First, it's a good idea to list block devices attached to the system:
$ sudo lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 1T 0 disk
├─sda1 8:1 0 1G 0 part /boot/efi
├─sda2 8:2 0 2G 0 part /boot
└─sda3 8:3 0 1020.9G 0 part
└─ubuntu--vg-ubuntu--lv 253:0 0 1020.9G 0 lvm /
sdb 8:32 0 931.5G 0 disk
sr0 11:0 1 1024M 0 rom
This allows you to see if the hard disk you expect is actually recognised by the OS. Next, list the partitions on the system - note the disk name:
$ sudo parted -l
Model: WDC WD10 EZEX-08RKKA0 (scsi)
Disk /dev/sdb: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags:
Number Start End Size File system Flags
1 0.00B 1000GB 1000GB ext4
By now we've seen the disk name twice as /dev/sdb
. It's important to get the name of the disk right, since the next step will destroy data. To format the disk as ext4
:
$ sudo mkfs.ext4 -j -L ext1 /dev/sdb
And to verify it worked, and get the disk UUID:
$ sudo blkid /dev/sdb
/dev/sdb: LABEL="ext1" UUID="86a24bca-ac32-4d8c-a7f8-af893dad5fac" BLOCK_SIZE="4096" TYPE="ext4"
Now, you need to make a mount point folder, where the contents of the drive will be available:
$ sudo mkdir /mnt/ext1
And then, add the fstab entry for the mount point, using the disk UUID from earlier:
$ sudo nano /etc/fstab
Add the following line to the end fstab
, where 86a24bca-ac32-4d8c-a7f8-af893dad5fac
is the UUID of your disk from the output of sudo blkid /dev/sdb
:
/dev/disk/by-uuid/86a24bca-ac32-4d8c-a7f8-af893dad5fac /mnt/ext1 auto
To mount the drive:
$ sudo mount -a
If you see a lost+found
folder in /mnt/ext1
, it worked! To check the SMART status of your drive, use the following command:
$ sudo smartctl --all /dev/sdb
The vendor specific attributes near the bottom are the interesting ones, such as Power_On_Hours
:
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 174 171 021 Pre-fail Always - 2300
4 Start_Stop_Count 0x0032 093 093 000 Old_age Always - 7760
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 080 080 000 Old_age Always - 15246
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always - 1721
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 90
193 Load_Cycle_Count 0x0032 198 198 000 Old_age Always - 7669
194 Temperature_Celsius 0x0022 117 100 000 Old_age Always - 26
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0
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