Linux ハードの情報を取得する

$ sudo dmidecode

Getting SMBIOS data from sysfs.
SMBIOS 3.1.1 present.
Table at 0xBB7D5000.

Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
        Vendor: Microsoft Corporation
        Version: Hyper-V UEFI Release v4.0
        Release Date: 12/17/2019
        ROM Size: 64 kB
        Characteristics:
                BIOS characteristics not supported
                ACPI is supported
                Targeted content distribution is supported
                UEFI is supported
                System is a virtual machine
        BIOS Revision: 4.0

Handle 0x0001, DMI type 1, 27 bytes
System Information
.
.
.

$ dmidecode

# dmidecode 3.2
/sys/firmware/dmi/tables/smbios_entry_point: Permission denied
Scanning /dev/mem for entry point.
/dev/mem: Permission denied