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Harry at 11:15, 24 April 2026

2026-04-24T11:15:18Z

← Older revision		Revision as of 19:15, 24 April 2026
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	The above result tells us that SDA has no partitions		The above result tells us that SDA has no partitions

	~~'''If the hard disk is not partitioned, we need to [[How to Partition a HDD \| partition the hard disk]]'''~~

	==How to Partition a HDD==		==How to Partition a HDD==

Harry: /* How to view the HDD/SSD */

2023-07-26T10:41:22Z

How to view the HDD/SSD

New page

{{GD Template Impl}}

==How to view the HDD/SSD==
1. Check USB device:
lsusb
The result is as follows
‎<pre>
Bus 002 Device 004: ID 152d:0561 JMicron Technology Corp. / JMicron USA Technology Corp. JMS551 - Sharkoon SATA QuickPort Duo
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
</pre>

The first line indicates that the USB device has been correctly recognized by the OS. ('''JMicron''' is the USB storage chip supplier)

If you cannot find the corresponding USB device, please check that your USB device is tightly connected, or replug the USB3 connector, or replace the USB3 connector with a USB-A to USB-A cable.

Sometimes, '''insufficient power supply''' may also cause the USB device not to be found, so we can also try to replace a high-quality power adapter.

If you have tried these actions and still cannot solve the problem, please contact us （'''support@geekworm.com'''） with the result information after running the '''lsusb''' command and your order number.

2. View HDD/SSD
lsblk -p
The result is as follows
<pre>
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
/dev/sda 8:0 0 298.1G 0 disk
└─/dev/sda1 8:1 0 298.1G 0 part
/dev/sdb 8:16 0 74.5G 0 disk
└─/dev/sdb1 8:17 0 74.5G 0 part
/dev/mmcblk0 179:0 0 7.4G 0 disk
├─/dev/mmcblk0p1 179:1 0 256M 0 part /boot
└─/dev/mmcblk0p2 179:2 0 7.1G 0 part /
</pre>

There are two SSDs devices were found. (/dev/sda and /dev/sdb)

3. Check if the hard disk is partitioned.
pi@raspberrypi:~ $ sudo fdisk /dev/sda

Welcome to fdisk (util-linux 2.36.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Command (m for help): p
Disk /dev/sda: 74.53 GiB, 80026361856 bytes, 156301488 sectors
Disk model: Tech
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 4096 bytes / 33553920 bytes
Disklabel type: dos
Disk identifier: 0x65b1c901

Device Boot Start End Sectors Size Id Type
/dev/sda1 65535 156301487 156235953 74.5G 83 Linux

Partition 1 does not start on physical sector boundary.

Command (m for help):

The above result tells us that SDA already has a partition: /dev/sda1

pi@raspberrypi:~ $ sudo fdisk /dev/sda

Welcome to fdisk (util-linux 2.36.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Command (m for help): p
Disk /dev/sda: 74.53 GiB, 80026361856 bytes, 156301488 sectors
Disk model: Tech
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 4096 bytes / 33553920 bytes
Disklabel type: dos
Disk identifier: 0x65b1c901

Command (m for help):
The above result tells us that SDA has no partitions

'''If the hard disk is not partitioned, we need to [[How to Partition a HDD | partition the hard disk]]'''

==How to Partition a HDD==
pi@raspberrypi:~ $ sudo fdisk /dev/sda

Welcome to fdisk (util-linux 2.36.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Command (m for help): p
Disk /dev/sda: 74.53 GiB, 80026361856 bytes, 156301488 sectors
Disk model: Tech
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 4096 bytes / 33553920 bytes
Disklabel type: dos
Disk identifier: 0x65b1c901

Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1): 1
First sector (65535-156301487, default 65535):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (65535-156301487, default 156301487):

Created a new partition 1 of type 'Linux' and of size 74.5 GiB.

Command (m for help): p
Disk /dev/sda: 74.53 GiB, 80026361856 bytes, 156301488 sectors
Disk model: Tech
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 4096 bytes / 33553920 bytes
Disklabel type: dos
Disk identifier: 0x65b1c901

Device Boot Start End Sectors Size Id Type
/dev/sda1 65535 156301487 156235953 74.5G 83 Linux

Partition 1 does not start on physical sector boundary.

Command (m for help): w

The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.

Note: If you need to support partitions larger than 2TB, you need to use the '''parted''' command

==How to format HDD/SSD==
pi@raspberrypi:~ $ sudo mkfs.ext4 /dev/sda1
mke2fs 1.46.2 (28-Feb-2021)
/dev/sda1 alignment is offset by 512 bytes.
This may result in very poor performance, (re)-partitioning suggested.
Creating filesystem with 19529494 4k blocks and 4882432 inodes
Filesystem UUID: dc0c2c55-145e-440d-a648-c4909b13c021
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424

Allocating group tables: done
Writing inode tables: done
Creating journal (131072 blocks):
done
Writing superblocks and filesystem accounting information: done

'/dev/sda1'/ is the first partition of the SDA . If you divide SDA into multiple partitions, there may be /dev/sda2, /dev/sda3, etc.

==How to mount HDD/SSD Partition==
pi@raspberrypi:~ $ sudo mount /dev/sda1 /mnt
pi@raspberrypi:~ $ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/root 30354572 8071072 20942064 28% /
devtmpfs 793780 0 793780 0% /dev
tmpfs 958644 0 958644 0% /dev/shm
tmpfs 383460 1296 382164 1% /run
tmpfs 5120 4 5116 1% /run/lock
/dev/mmcblk0p1 258095 50413 207683 20% /boot
tmpfs 191728 24 191704 1% /run/user/1000
/dev/sda1 76314492 24 72392188 1% /mnt

'/dev/sda1' is mounted under '/mnt' folder


<comments />




[[Category:Product Manual]]
[[Category:Raspberry pi]]
[[Category:Knowledge]]

How to View/Partition/Format/Mount HDD/SSD - Revision history

Admin: Replace with

Admin: Replace with

Harry at 11:15, 24 April 2026

Harry: /* How to view the HDD/SSD */