How to view Linux hardware configuration information

1. view all hardware information of the machine:

Dmidecode | more

Dmesg | more

The two commands have a lot of information, so we recommend that you use "| more" for ease of viewing.

2. View CPU Information

Method 1:
CPU-related parameters in Linux are stored in the/proc/cpuinfo file.
CAT/proc/cpuinfo | more
Method 2:
Run the command dmesg | grep CPU to view the startup information of the CPU.
View the number of CPUs:

Getconf long_bit

3. View mem Information

CAT/proc/meminfo | more (note the last line of output information: machinemem: 41932272 KB)

Free-m

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4. view disk Information

Method 1:
Fdisk-L shows the partition and size of the disk (including the USB flash disk) on the system.
Method 2:
View

CAT/proc/Partitions

5. View Nic Information

Method 1:
Ethtool eth0 can use this command to view NIC-related technical indicators
(Not all network cards support this command)
Ethtool-I eth1 and-I parameters to view the NIC Driver
You can try other parameters to view NIC-related technical parameters.
Method 2:
You can also view the NIC name (manufacturer) and other information through dmesg | grep eth0.
View/etc/sysconfig/network-scripts/ifcfg-eth0 to see the current Nic configuration including IP, gateway address and other information.
You can also run the ifconfig command.

6. How to view the motherboard information?
Lspci

7. How to mount an ISO file
Mount-o loop *. ISO mount_point
8. How to view information about a cd
Method 1:
After inserting the CD, in my rhel5 system, the CD file is/dev/CDROM,
Therefore, you only need to mount/dev/CDROM mount_point.
[Root @ miix TMP] # Mount/dev/CDROM mount_point
Mount: block device/dev/CDROM is write-protected, mounting read-only
In fact, take a closer look, the device file of the optical drive is HDC.
[Root @ miix TMP] # ls-L/dev/CDROM *
Lrwxrwxrwx 1 Root 3 01-08 08:54/dev/CDROM-> HDC
Lrwxrwxrwx 1 Root 3 01-08 08:54/dev/CDROM-HDC-> HDC
Therefore, we can mount/dev/HDC mount_point in this way.
If a valid disc is not included in the optical drive, an error is returned:
[Root @ miix TMP] # Mount/dev/HDC mount_point
Mount: media not found
9. How to view USB devices

Method 1:
In fact, you can use the fdisk-l command to view the information of the connected USB flash disk. Your USB flash disk information is as follows:

Disk/dev/SDA: 2012 MB, 2012217344 bytes
16 Heads, 32 sectors/track, 7676 Cylinders
Units = cylinders of 512*512 = 262144 bytes

Device boot start end blocks ID system
/Dev/sda1*16 7676 1961024 B w95 FAT32

The device file of the USB flash drive is in the/dev/SDA, 2 GB size, and FAT32 format.

If the user logs on to the Linux GUI, the USB flash drive will not be automatically mounted.
In this case, you can manually mount ):
Mount/dev/sda1 mount_point
The above command mounts the USB flash drive to the mount_point directory of the current directory. Note that sda1 is not SDA.
The uninstall command is umount mount_point.

By default, Linux does not have a built-in drive that supports NTFS disks, but supports FAT32 well. The-T vfat parameter is generally not required for mounting.
If NTFS is supported, the-t ntfs parameter should be used for NTFs-format disk partitions.
If garbled characters occur, you can use-O iocharset = character set parameters.

You can use the lsusb command to view the USB device information:

[Root @ miix TMP] # lsusb
Bus 001 device 001: Id :0000
Bus 002 device 001: Id :0000
Bus 003 device 001: Id :0000
Bus 004 device 002: Id 0951: 1613 Kingston Technology
Bus 004 device 001: Id :0000