All Questions
Tagged with operating-systems linux
253
questions
2
votes
2
answers
2k
views
Why would xbcd.com resolve to the localhost (127.0.0.1) on Linux (Ubuntu) and Android?
When
1) pinging xbcd.com I get 127.0.0.1
2) using a web browser and the URL xbcd.com leads me to the local webserver, if it exists.
I've tried this on Ubuntu 14.04, multiple networks/DNS, as well ...
- 217
0
votes
0
answers
579
views
How to solve kernel panic issue
I have a Debian OS upgraded from to 2.6 to 3.4 in my PC. All of a sudden some basic commands like ls and sudo were not working (by mistake I deleted some files in the root folder). I was getting a ...
- 127
0
votes
3
answers
6k
views
Can I install 2 operating systems on 2 different hard drives?
I have 2 SATA hard drives that I want to use in my system. One has Windows 8, and the other I want to install Linux.
Can I install Linux on the second drive without disturbing my Windows 8 ...
- 21
9
votes
2
answers
12k
views
Where are Page tables stored
My question is "where are the page tables stored: in physical memory (RAM) or as some data structure in User space".
PS: What I have understood so far:
A process memory layout has few segments ( ...
- 193
1
vote
3
answers
296
views
Installing Linux on OS-less laptop: headache?
Clearly I will do my homework when it comes to installing an OS (I've never done this) but I was just looking for a heads up on whether this has the potential to be a headache with regards to things ...
- 231
0
votes
1
answer
655
views
Is it possible to run NetBeans installed in Windows to run on Ubuntu
My system was running on windows 8. Yesterday I installed Ubuntu 13.10 to my system without removing windows. Due to some problems now I can't boot Windows. But Ubuntu is working fine. I was doing a ...
- 733
1
vote
1
answer
2k
views
Linux distribution detection with Nmap
When I run Nmap with OS detection it delivers the kernel version of the Linux host instead of the name of the Distribution. Nessus does Os detection based on banners (http://www.tenable.com/blog/...
- 111
5
votes
3
answers
25k
views
Is having more CPU cores a better thing for running a web server?
I was reading about how User threads are mapped to kernel threads on Wikipedia. From this article I understand that FreeBSD uses the 1:1 (Kernel-level threading).
So each User thread created by the ...
- 151
0
votes
5
answers
429
views
Am I using the Linux or Ubuntu platform?
I am not sure if this question goes here, but I was wondering about the relationship between Linux and Ubuntu. I read on-line that Ubuntu is a "flavor" or "variation" of Linux(http://answers.yahoo.com/...
- 131
1
vote
1
answer
1k
views
What is the impact of killing a process on the operating system (Windows and Linux)?
What is the impact of killing a process on the operating system (Windows and Linux)?
I have a script that forks some executables and monitors their progress and kill those that exceed certain runtime ...
- 125
0
votes
1
answer
855
views
Enable to install Linux Ultimate Edition (Ubuntu)
After I deleted Linux partition from Windows 7, I wanted to install a new version Linux Ultimate Edition 3.8 which is based on Ubuntu 13.04 Raring Ringtail. So I made a bootable usb, but when I boot ...
- 561
0
votes
1
answer
2k
views
How to make the networking between the host and the target?
I installed QNX IDE, Libraries and developemnt tool on Host system and QNX real time operating system is installed as a Target system : the target system runs the QNX Neutrino RTOS itself plus all the ...
- 11
0
votes
2
answers
2k
views
Understand what is happening in Linux with ps, top, and free
I'm running my java program on a 12 cores 24 thread machine. They have several processes that are running simultaneously. It seems that I performed too many processes so that the whole tasks made the ...
- 501
2
votes
0
answers
195
views
Directory and segments in Multics operating system
In Multics OS there are different access rights in the access control list for segments (execute, read and write) and directories (status, append and modify)(book).
How do segments correspond to ...
- 63
0
votes
2
answers
1k
views
Does an improper shutdown cause harm to the underlying OS or hardware?
Does sudden shut down due to power failure do any harm to the underlying OS or hardware ? My laptop's battery is dead, so sometimes due to power failure or due to some other reason there is an ...
- 2,243
1
vote
0
answers
93
views
Huge file input/output
My question is a bit general, but the application is very practical. I wonder, how does system (Linux in particular, but general mechanisms are interesting too) handles reading/writing of huge (larger ...
- 111
6
votes
2
answers
40k
views
Linux: Kill process on specific port
How to kill a process if its port is known? For example if a process is running at port 12345 then how it can be terminated in linux/ubuntu.
- 61
1
vote
2
answers
2k
views
Creating a custom GUI. App/DE/WM?
I am starting with this project of mine of writing a custom UI for linux. What would happen is:
The computer would boot into this UI which would not be the typical
taskbar/icons/startbutton kind of ...
- 219
0
votes
1
answer
3k
views
Are there any Linux distros that are specially made for laptops? [closed]
I have tried and tested Ubuntu, Linux Mint, Arch Linux and Windows. Recently I have come across Open SUSE.
I was wondering what are some Linux distros that are specially designed for laptops.
I am ...
- 119
-1
votes
3
answers
197
views
Questions about combining partitions
Alright, so here's the situation. I'm currently dual booting windows 7 and Linux Mint 15. I'm going to be reinstalling my Linux OS soon, and I want to really organize my harddrive while I'm at it. I ...
- 135
0
votes
1
answer
60
views
Renew the Linux, Restore to the new
I'm new to Linux. My Ubuntu 13 is now meeting problem such the CPU rate is about 100% ever time and the System Drive Disk Usage is full. I think the virus is attacking my computer. Are there any ways ...
0
votes
1
answer
727
views
How do I define a new virtual machine in QEMU?
I have installed QEMU for fedora via:
yum install qemu
Now how do I start it ? I mean how do I define a new virtual machine, like I do in VMware? Also I don't see any icon made for QEMU.
- 2,243
7
votes
4
answers
24k
views
What to do with a Linux OS microSD image file?
I am trying to install Ubuntu on the Odroid U2 SoC (http://www.hardkernel.com/renewal_2011/products/prdt_info.php)
From this site I downloaded the "Micro-SD image file" (http://com.odroid.com/sigong/...
- 79
2
votes
1
answer
4k
views
How to remove file permissions from an external hard drive?
My macbook recently died and I am currently trying to figure out how to copy my data.
What I did was, I took out the hard drive, put it in an enclosure and plugged it in to my other laptop that runs ...
- 21
-6
votes
1
answer
432
views
how to install linux on windows xp operting system? [closed]
I have a pc with Windows XP installed on it. And I made one partition free of 100 GB for installing Linux(Ubuntu) on it. I am newbie to linux. I searched Google and found some thirdware bootloaders, ...
- 101
0
votes
1
answer
453
views
Which partition should i shrink the volume size to install linux ? Are there are limit of primary partition? [closed]
I am windows user. Now I want a dual boot with linux. A screen shot of my computer's disk management:
Which partition do you recommend I shrink? And if I'm not mistaken, operating system must ...
- 1
23
votes
4
answers
5k
views
Can unexpected power loss harm a Linux install?
I am developing an application on a Linux embedded board (runs Debian) e.g. Raspberry Pi, Beagle Board/Bone, or olimex. The boards works on an environment that the electricity is cut unexpectedly (it ...
user208554
3
votes
2
answers
1k
views
How do I install multiple OSes on a USB flash drive?
I would like to try out different Linux distros on the go using a USB flash drive.
Is it possible to install multiple Linux OSes on a single USB drive?
- 59
4
votes
1
answer
389
views
What are the differences between "enterprise" and "home" Linux distributions?
Simply as the title says, what are the main differences between these two kind of distributions?
Being Linux basically suited to be tailored to each own preferences and fully customizable in every ...
- 9,516
2
votes
3
answers
311
views
Where can I find a comprehensive explanation of hard drive partitioning? [closed]
I have been messing around with linux distros and have been asked to create partitions. I generally just click through the standard options without really knowing what I am doing. Since this kind of ...
- 151
33
votes
8
answers
91k
views
Are we supposed to manually delete the contents of /tmp?
I was under the impression that “old” files in /tmp will be regularly deleted. However, it seems to me that /tmp will just grow as long as it wants to, and nothing will be deleted. Some people say it’...
- 5,533
2
votes
1
answer
2k
views
Install Linux (BackBox/Ubuntu) beside Mac OSX
I have a MacBook Pro late 2008, 120 GB SSD & 250 GB instead of the CD-Drive. Now there's Mac OSX on both, but I want to install Linux Ubuntu on the HDD. Now there is the problem: "What Bootloader, ...
- 78
22
votes
4
answers
7k
views
Why does Linux use a swap partition when the kernel supports paging/virtual memory anyway?
As far as I understand paging and swapping, they're completely different concepts. While swapping means, that a process is either completely in physical memory or on the hard drive, with paging parts ...
- 4,988
-2
votes
1
answer
163
views
Can Ubuntu or Windows run OS X?
Can Ubuntu run Mac OS X?
I currently run Windows 7 – can I download and run one of the OS X programs?
0
votes
1
answer
267
views
Modifying the linux scheduler
I want to change specific parameters of the linux CFS scheduler like the virtual runtime of particular processes dynamically ( vruntime parameter in the sched_entity ). Is there any definite method to ...
-1
votes
0
answers
20
views
Dual OS configuration [duplicate]
I have installed windows and Linux(ubuntu) on the same machine. Now the problem is when I start my machine, It directly goes to Linux and not asking me for the selection of OS either I want to load ...
- 111
4
votes
2
answers
2k
views
ls executes slowly on remote server
I have a very strange problem, one that may be too difficult to diagnosis without machine access, but maybe someone here may be able to help.
I am using OS X, and on my local machine ls executes ...
- 577
0
votes
1
answer
704
views
Linux OS for Mac PowerBook g3 (1998)
So I got a PowerBook G3 off EBay (I don't know why, I just did) and it arrived. Now that I have it i realised that is nearly useless running Mac OS 9. My question is : Is there a Linux distro, like ...
8
votes
2
answers
2k
views
What is the difference between Ubuntu, Xubuntu, and Lubuntu
I am relatively new to Linux operating systems and I'm trying to find out more about them. Unfortunately, I cant find a whole lot of good sources about them. Right now I get a bit confused and mixed ...
- 832
52
votes
2
answers
100k
views
cat /proc/meminfo what do all those numbers mean
In reading the man page on the free command in Linux. I found that is gets its info from /proc/meminfo.
I understand a few of the entries, like MemTotal and MemFree. What do the rest mean.
cat /...
- 13.8k
10
votes
2
answers
8k
views
Mouse double-click min interval
This is the second mouse dying on me because of a poor switch !
Under most operating systems there is a option to set the max time interval in which two mouse clicks are processed as on double click.
...
- 111
1
vote
2
answers
605
views
What would I need to do to clone a Linux install to another machine?
Basically, I want to make an image of one Linux install I have, and distribute it over similar (if not identical) spec machines on a network. I know it is possible, however am unsure of what needs to ...
- 252
0
votes
2
answers
854
views
Linux Distro - GUI similar to Windows [closed]
I am in the process of refurbing several older laptop machines for use by a couple college guys we have in training to learn basic web development in python. These are students who intern at my ...
- 101
0
votes
2
answers
2k
views
OS for Eee PC 4G Surf
I have an Eee PC 4G Surf, which I have not used for more than a year. My mothers netbook just broke and I was thinking to activate this device for her. However, I want to know what OS to install on it....
- 109
9
votes
4
answers
26k
views
Redirect stdout while a process is running -- What is that process sending to /dev/null
I've run a command and redirected it's output via > /dev/null
Now that it's been running significantly longer than I expected I want to see what it's doing.
Is there a way to re-redirect the ...
- 1,471
4
votes
4
answers
1k
views
What are the risks (if any) of installing an older version of Linux
My machine has limited RAM capacity. Newer Linux distributions seem to require more memory (often 1 GB or more) and seem to consume more than 500 MB on itself.
Is it safe to use an older version of ...
- 497
0
votes
0
answers
43
views
32-bit or 64-bit OS? [duplicate]
Possible Duplicate:
32-bit vs. 64-bit systems
I just built a new box which has an i7 3820 running as CPU.
I usually run linux distros on my boxes. Is it best to go with a 64-bit distro with ...
- 111
2
votes
3
answers
3k
views
Is my laptop processor 64bit?
I have a Lenovo Ideapad Y510. I have always used 32bit OS in it. Yesterday I came across this detail of my laptop and it says processor of my laptop is 64bit (hope I have not misinterpret anything) so ...
- 4,979
1
vote
3
answers
272
views
How could I pack my linux installation to installable DVD
I have spend more than 2 months configuring my openSUSE 12.1 linux as ultimate development environment with manual installs of many tools and packages. How could I pack this as my own distro on a DVD ...
- 111
0
votes
2
answers
155
views
Turn 2 USB type A ports (receptacles) into an extension cable with 2 type A receptacles using Linux?
I'm currently trying to connect 2 USB devices together, but both ends are type A plugs.
Before I buy a physical extension cords with 2 type A receptacles, I'd like to know if I can connect these 2 ...
- 139