General questions about hardware under Linux/Unix. Use a more specific tag if applicable.

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13
votes
5answers
2k views

Getting information on a machine's hardware in Linux

How can I check what hardware I have? (With BIOS version etc.)
56
votes
18answers
157k views

How do I find out what hard disks are in the system?

I need to know what hard disks are available, including ones that aren't mounted and possibly aren't formatted. I can't find them in dmesg or /var/log/messages (too much to scroll through). I'm hoping ...
9
votes
4answers
2k views

Stress testing SD cards using linux

I got into a little debate with someone yesterday regarding the logic and/or veracity of my answer here, vis., that logging and maintaining fs meta-data on a decent (GB+) sized SD card could never be ...
2
votes
1answer
3k views

How To Diagnose Faulty (onboard) Network Adapter

I'm looking for advice on diagnosing ethernet connectivity issues under Linux. I suspect it's a hardware issue, though I am not entirely sure. It's an nVidia chipset and ethernet adapter. The device ...
11
votes
2answers
6k views

How to Determine the Amount of RAM Slots In Use?

I forgot how many RAM modules are installed on my laptop. I do not want to unscrew it but want to look it up on the console. How do I gather this information?
8
votes
5answers
5k views

How to know if /dev/sdX is a connected USB or HDD?

How can I know if /dev/sdX is a local HDD or usb key ? best doing this without root privileges. OK , udevadm helped a lot: For local HDD: udevadm info --query=all --name=sdb | grep ID_BUS E: ...
10
votes
4answers
3k views

Detecting headphone connection/disconnection in Linux

I am trying to detect a signal when a headphone is connected or disconnected from the system. What is the best way to do this? If there is a special board with drivers, that will be my preferred ...
3
votes
1answer
168 views

Getting capabilities of my CD/DVD drive when wodim --devices doesn't work

I used to be able to run either commands successfully on my Fedora 14 Thinkpad T410 laptop: $ wodim --scanbus $ wodim --devices However since upgrading to Fedora 19 this no longer seems to work and ...
2
votes
1answer
383 views

Writing triggers for mcelog

Just starting to look into mcelog for the first time (I've enabled it and seen syslog output before, but this is the first time I'm trying to do something non-default). I'm looking for information on ...
3
votes
3answers
2k views

Human readable system memory reading crom CLI?

On OS X, I get a nice human readable system memory reading like so: printf -v system_memory \ "$(system_profiler SPHardwareDataType \ | awk -F ': ' '/^ +Memory: /{print $2}')" ...
1
vote
1answer
192 views

Can an interupt be processed by software, without hardware support? [closed]

Can an interrupt be processed by software without the need for hardware suppport? Assume an x86 architecture.
8
votes
4answers
3k views

Serve files over USB

I would like to be able to serve a section of my box's file system over USB to another computer. For example, if the files are on box A and I am reading from box B, then B would mount A, see those ...
17
votes
4answers
1k views

Why does Linux scale so well to different hardware platforms?

Why does Linux run well on so many different types of machines - desktops, laptops, servers, embedded devices, mobile phones, etc? Is it mainly because the system is open, so any part of it can be ...
13
votes
1answer
5k views

How do you use badblocks?

I need to do a destructive (rw) test on a new drive, and a read-only on a drive that fell out of my RAID array. I want to see if it finds problems and how far along it is.
9
votes
4answers
780 views

How do I disable or change the caps lock key on my keyboard?

We have ergonomic keyboards at work which I'm not entirely used to. I seem to keep hitting the capslock key while I'm in vim and it's starting to annoy. How can I disable this key, and or change to to ...
7
votes
5answers
518 views

Can I see what HDD I have installed? [duplicate]

I use lspci for pci devices and lsusb to list the usb hardware devices, is there something similar to list my SATA HDD model ?
9
votes
1answer
2k views

Hard disk labels

How do I add a label to a partition on a disk, and how do I then mount it by label (manually and via fstab)? note: this is an external hard drive
6
votes
1answer
991 views

Get monitor make and model and other info in human readable form

I have extracted the shorthand version of the current monitor attached to the computer. Here is an example: vendor "VSC", prod id "18500" In Ubuntu's Monitor Preferences, it is identified as ...
5
votes
4answers
4k views

My laptop cannot adjust brightness

I have a problem adjusting my laptop's brightness. This is a hardware problem but I can solve it with ccsm, but other programs do not work for me, e.g., xgamma, etc. Now I am running Fedora 15 and ...
4
votes
1answer
3k views

Setting CPU frequency guidelines

I'm changing my CPU frequency because of noisy fan. I used sudo cpufreq-selector -g powersave for this purpose, but I replaced my Linux system Xubuntu with Lubuntu because it utilizes better ...
3
votes
1answer
779 views

Does segfaults mean bad memory

This is a brand new server with a new install and fresh compile of Apache/PHP with nothing crazy. Just a WordPress site hosted and I get the following. Could this just mean bad RAM? If so how can I ...
2
votes
1answer
148 views

Interpret the output of lstopo

I have a output from lstopo --output-format txt -v --no-io > lstopo.txt for a 8-core node in a cluster, which is https://dl.dropboxusercontent.com/u/13029929/lstopo.txt The file is a text drawing ...
2
votes
2answers
948 views

How to determine bitness of hardware and OS?

Output of uname -a on my RHEL 5.4 machine is: Linux <machine name> 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux Does it mean that hardware is 64 bit ...
4
votes
2answers
853 views

Run Python Portio script as normal user without root access

I know there are risks running a root script as a normal user, but in this case I don't have a choice and what I am doing is machine related. I have an Small Board Computer that has GPIO ports and I ...
3
votes
2answers
473 views

Connecting to wireless router

According to this manual I tried: $ iwconfig lo no wireless extensions. eth1 IEEE 802.11bg ESSID:"g\xC6isQ\xFFJ\xEC)\xCD\xBA\xAB\xF2\xFB\xE3F|\xC2T\xF8\x1B\xE8\xE7\x8DvZ.c3\x9F\xC9\x9A" ...
3
votes
2answers
3k views

Driver for Intel 2200BG wireless network card

I'm trying to make work my wireless network card Intel 2200BG in my laptop Acer Travelmate 4002WLMI. I tried so far: $ sudo lshw -C network *-network:1 description: Wireless interface ...
3
votes
5answers
619 views

Modern distribution on old hardware

I have an old system currently running ubuntu jaunty. The main harware specs are: Processor: AMD Athlon 1,2 GHz RAM: 512 MB Graphics: [SiS] 65x/M650/740 (output from lspci) HDD: 40 GB Now jaunty ...
2
votes
3answers
145 views

how is page size determined in virtual address space?

Linux uses a virtual memory system where all of the addresses are virtual addresses and not physical addresses. These virtual addresses are converted into physical addresses by the processor. To ...
2
votes
2answers
552 views

How to troubleshoot a computer freeze from liveCD?

I'm helping my dad fixing his old computer. I am now running it from Fedora 16 with XFCE Live CD. If I try to install, as soon as it gets to the part where it writes partition to disk however, the ...
1
vote
0answers
263 views

Hardware problem after fresh Linux Mint install

I've installed Linux Mint, Mate 64bit on my machine. My configuration: Desktop PC HP Pro 3400 Series MT Processor: Intel Core i3 2120 @3.30GHz Chipset: Intel Sandy Bridge Graphic Interface: ...
1
vote
3answers
1k views

Linux/UNIX for older (Pentium 4) laptop [duplicate]

Possible Duplicate: Linux for low-end hardware and internet browsing What UNIX or Linux would be the most suitable for my old laptop HP Compaq nx9010 hardware? Hardware specs: Chipset: ...
1
vote
0answers
107 views

How do I determine the make & model of my storage devices? [duplicate]

Possible Duplicate: How do I find out what hard disks are in the system? I'm running a CentOS 5.5 system. This system has 4 disks and a 3ware RAID controller. How can I determine the make ...
0
votes
2answers
1k views

Linux fan control?

For some unknown reason, my laptop fan stays on consistently. Even when I'm using less than 2% CPU and the air coming out of the vent is seemingly cooler than the air in the room, the fan always stays ...