Hardware and Devices

By Dan Aukes

    Device / driver info

    lsmod
lspci -k
dmesg

    Devices

    sudo libinput --list-devices

    Learn about your hardware

    Get DMI/BIOS information

    sudo dmidecode 
sudo dmidecode -t0 # BIOS
sudo dmidecode -t1 # System
sudo dmidecode -t2 # Board
sudo dmidecode -t3 # Enclosure or Chassis
sudo dmidecode -t4 # Processor
sudo dmidecode -t1 # System

    Drives

    Hard drive information

    list disks with lsblk

    lsblk -f #list filesystem details
lsblk -t #show topology
lsblk -i # use ascii
lsblk -o NAME,UUID # show specific columns
sudo lshw -class disk
sudo fdisk -l
sudo hwinfo --disk
ls -l /dev/disk/by-path
ls -l /dev/disk/by-id

    get drive information:

    sudo hdparm -I /dev/sda

    if you have an NVMe device…

    sudo apt install -y nvme-cli
nvme list
#sudo nvme smart-log <node_name> 
sudo nvme smart-log /dev/nvme0n1 
sudo nvme id-ctrl /dev/nvme0n1

    Mounting

    From here

    ##list disks
sudo fdisk -l
#if you know the disk you want info about:
sudo fdisk -l /dev/sdd 
sudo mount /dev/sdd1 /media/backup
# unmount
sudo umount /media/backup
# unmount all
sudo umount -a
# force unmount
sudo umount -f /media/backup

    mounting with fstab

    you can get most information from lsblk if you have temporarily mounted it…

    #UUID=<yourUUID>                           <mount_location> <filesystem>  <options>  <dump(use 0)>  <order(use 2)>
UUID=24df9215-550f-4ca0-a9f1-8f0efd2  /media/backup    ext4          defaults   0       2

    once you have edited, check by running

    mount -a

    Recursively find storage space of a directory

    from here

    du -sh /path/to/my/dir

    list directories, one level only, from here

    du -h  --max-depth 1 /path/to/my/dir

    Find the free space of a drive

    df -H

    Disk Cloning

    check out dd

    sudo fdisk -l /dev/sdb

sudo dd if=/dev/sda of=~/sda.dd bs=128k status=progress conv=noerror,sync
sudo dd if=/dev/sda bs=128k status=progress conv=noerror,sync | gzip -c > /sda.gz
sudo dd if=/dev/sda of=/media/danaukes/24df9215-550f-4ca0-a9f1-8f0d666befd2/sda.dd bs=128k status=progress conv=noerror,sync

    Change Swap

    mount information

    information on nautilus-aware mount locations

    Read from Serial

    from here

    sudo apt install -y cu
cu -l /dev/ttyACM0 -s 9600

    To exit enter tilde dot (~.)

    sudo apt install -y screen
screen /dev/ttyACM0 9600

    Identifying and locating USB devices

    These widely used commands can be used to list and learn about connected USB devices in Linux.

    lsusb
dmesg
dmesg | less
dmesg | grep ttyUSB
usb-devices
lsblk
sudo blkid.
sudo fdisk -l

    lsusb

    list the device tree to get port:device

    lsusb -t

    list all the details about a device at port 1: device 3

    lsusb -v -s 1:3

    Permissions