Finding Your PC's hardware Details Under Debian

The following commands on a Linux system should give some idea of actual hardware and configuration.

     $ pager /proc/pci
     $ pager /proc/interrupts
     $ pager /proc/ioports
     $ pager /proc/bus/usb/devices

These commands can be run during the install process from the console screen by pressing Alt-F2.

After the initial installation, with the installation of optional packages such as pciutils, usbutils, and lshw, you can obtain more extensive system information.

     $ lspci -v |pager
     $ lsusb -v |pager
     # lshw  |pager

Typical uses of interrupts:

*       IRQ0: timer output (8254)

*       IRQ1: keyboard controller

*       IRQ2: cascade to IRQ8–IRQ15 on PC-AT

*       IRQ3: secondary serial port (io-port=0x2F8) (/dev/ttyS1)

*       IRQ4: primary serial port (io-port=0x3F8) (/dev/ttyS0)

*       IRQ5: free [sound card (SB16: io-port=0x220, DMA-low=1, DMA-high=5)]

*       IRQ6: floppy disk controller (io-port=0x3F0) (/dev/fd0, /dev/fd1)

*       IRQ7: parport (io-port=0x378) (/dev/lp0)

*       IRQ8: rtc

*       IRQ9: software interrupt (int 0x0A), redirect to IRQ2

*       IRQ10: free [network interface card (NE2000: io-port=0x300)]

*       IRQ11: free [(SB16-SCSI: io-port=0x340, SB16-IDE: io-port=0x1E8,0x3EE)]

*       IRQ12: PS/2 Mouse

*       IRQ13: free (was 80287 math coprocessor)

*       IRQ14: primary IDE controller (/dev/hda, /dev/hdb)

*       IRQ15: secondary IDE controller (/dev/hdc, /dev/hdd)

For old non-PnP ISA cards, you may want to set IRQ5, IRQ10, and IRQ11 as non-PnP from the BIOS.

For USB devices, device classes are listed in /proc/bus/usb/devices as Cls=nn:

*       Cls=00 : Unused

*       Cls=01 : Audio (speaker etc.)

*       Cls=02 : Communication (MODEM, NIC, ...)

*       Cls=03 : HID (Human Interface Device: KB, mouse, joystick)

*       Cls=07 : Printer

*       Cls=08 : Mass storage (FDD, CD/DVD drive, HDD, Flash, ...)

*       Cls=09 : Hub (USB hub)

*       Cls=255 : Vendor specific

If the device class of a device is not 255, Linux supports the device.

If you want to know more details about your current operating system use 'uname' command.

Uname Command

Displays the name of the current operating system

uname [OPTION]...


Print all of the below information.

Print the machine (hardware) type.

Print the machine's network node hostname.

Print the machine's processor type

Print the Kernel release.

Print the operating system name.

Print the operating system version.