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  • How to discover what Linux distro is in use

    - by Seiti
    Sometimes I need to access some servers running Linux (or maybe another Unix-like SO), but I don't know how to verify which distro is in use on the server (there are times that even the "responsible" for the server doesn't know). Is there a easy and reliable way to discover that, one that is uniform and consistent across all of them?

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  • How to fill a structure when a pointer to it, is passed as an argument to a function

    - by Ram
    I have a function: func (struct passwd* pw) { struct passwd* temp; struct passwd* save; temp = getpwnam("someuser"); /* since getpwnam returns a pointer to a static * data buffer, I am copying the returned struct * to a local struct. */ if(temp) { save = malloc(sizeof *save); if (save) { memcpy(save, temp, sizeof(struct passwd)); /* Here, I have to update passed pw* with this save struct. */ *pw = *save; /* (~ memcpy) */ } } } The function which calls func(pw) is able to get the updated information. But is it fine to use it as above. The statement *pw = *save is not a deep copy. I do not want to copy each and every member of structure one by one like pw-pw_shell = strdup(save-pw_shell) etc. Is there any better way to do it? Thanks.

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  • Combine file transfer dialogs

    - by SamuelDavis
    I am considering upgrading my work computer to use windows 8 as the new file transferring feature seems very useful. Unfortunately after installing windows 8 on my home pc to test it out, the files are being transferred in separate dialogs as opposed to this image provided by microsoft. As I am transferring files constantly a single transfer dialog would make things much less confusing. Does anyone know what settings to change to make file transfers appear in the same window?

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  • Which file system to use for portable hard drive shared among different operating systems?

    - by Jonathon Watney
    Something similar has been asked already but my criteria is a little different. I need to share a portable hard drive (USB/Firewire) between Mac OSX, Linux and Windows XP systems where the files being shared are sometimes 4GB. Is there a file system that is available out of the box on all these operating systems that support this and allows read/write access? If not, what's the next best solution in terms of installing additional software on these operating systems?

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  • How to know which operating system is suitable for my PC between 32/64-bit?

    - by avirk
    I'm using 32-bit operating system since I've my laptop. I've never used the 64-bit operating system so I'm much curious about this that if I upgrade to 64-bit still my pc will give me the same performance. However I've checked about my hardware from this question. I don't know about those result that what they are saying? So I'm here for little help to know that is there any performance issue after upgrading or not?

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  • How can I save my operating system and transfer it to a new SSD?

    - by Dave Duhrkoop
    I recently purchased a Mushkim SSD to replace my failing hard drive of my H/P Dv6-12465dx laptop. Physical installation of the SSD should be easy. I have my existing HD divided into five virtual drives, one of which contains the Windows 7 Operating System. There were no back up disks when I purchased the machine originally. How do I go about saving the Operating system and transferring it to the new SSD?

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  • lack of update in xen kernel has any relation to guest operating systems?

    - by austin powers
    Hi , due to these two problems I've coped http://serverfault.com/questions/133578/not-able-to-install-g-and-gcc-on-debian also there is another link but due to my low reputation I couldn't put it through. I just wondering whether the hosted operating system (XEN) has any relation to its guest operating system or not? and when I type uname -r on my VPS it shows : 2.6.18-164.9.1.el5xen where as my installed O/S on my vps is debian 5.04 regards.

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  • Does frequently formatting and reinstalling an operating system damage a hard drive?

    - by Closure Cowboy
    I tend to format and reinstall my operating system fairly frequently (about once a month). I apologize for my lack of technical terms, but I do not perform a "full format" (the type of formatting that zeros-out the existing data). Regardless, I know that most modern operating systems consume several GBs of data. Is doing this particular damaging to my hard drives? Would it matter whether I'm using a solid state drive (I'm not)?

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  • What is a good operating system for relative newbies for setting up a website and source control? [on hold]

    - by Zeroth
    I'm part of a small group of people working on video games. We want to set up our own boxes to serve the website and handle the source control for development work. I have the most technical expertise, but its been a few years since I've set up or played with Linux or other open source operating systems. So I'm a bit out of the loop on what are the user-friendly open source operating systems out there right now?

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  • dd cloned win2003 std ntfs partition, "no operating system found".

    - by 3molo
    I cloned an existing ntfs partition on faulty hardware using dd and gzip. The copied partition was then written to a newly created ntfs partition on a new disk (on another server) and the bootable flag was set. However, the "Operating system not found" (or is it No operating system found?) is what happens when I try to boot it.The faulty server is part of the AD domain, but I do not have the local administrator password, so I couldn't use the repair console of windows 2003 to fixmbr. I did try to do a normal repair during win2003 installation menu, but with no success. Both windows installation and Linux recognizes it as a ntfs partition of its true size, and files can be seen and read. I've done this a couple of times before, but I didn't encounter this problem. Of course I encountered other problems, like BSDO due to lack of hw drivers etc - but that was pretty easily fixed. Why am I failing to get the copied partition to even be recognized as a bootable disk on the new server?

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  • Can I run virtualized 64-bit Operating Systems if my CPU doesn't support VT-X?

    - by tintinmj
    I have installed VMWare 10.0 workstation on my Compaq CQ60-615DX laptop. The Operating System is Windows 7 Home Premium. When I tried to run Ubuntu 14.04 64-bit in a virtual machine in VMWare I get an error saying: This virtual machine is configured for 64-bit guest operating systems. However, 64-bit operation is not possible. This host does not support Intel VT-x. For more detailed information, see http://vmware.com/info?id=152. So I googled and found that I have to enable Intel VT-x. But I found out that my processor doesn't support Intel® Virtualization Technology (VT-x). So am I doomed and can I never run any virtual OS on my laptop? Or can I run 32-bit OSes?

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  • How does an NTP host switch among the various modes?

    - by James A. Rosen
    The NTPv3 RFC describes five operating modes: Symmetric Active (1): A host operating in this mode sends periodic messages regardless of the reachability state or stratum of its peer. By operating in this mode the host announces its willingness to synchronize and be synchronized by the peer. Symmetric Passive (2): This type of association is ordinarily created upon arrival of a message from a peer operating in the symmetric active mode and persists only as long as the peer is reachable and operating at a stratum level less than or equal to the host; otherwise, the association is dissolved. However, the association will always persist until at least one message has been sent in reply. By operating in this mode the host announces its willingness to synchronize and be synchronized by the peer. Client (3): A host operating in this mode sends periodic messages regardless of the reachability state or stratum of its peer. By operating in this mode the host, usually a LAN workstation, announces its willingness to be synchronized by, but not to synchronize the peer. Server (4): This type of association is ordinarily created upon arrival of a client request message and exists only in order to reply to that request, after which the association is dissolved. By operating in this mode the host, usually a LAN time server, announces its willingness to synchronize, but not to be synchronized by the peer. Broadcast (5): A host operating in this mode sends periodic messages regardless of the reachability state or stratum of the peers. By operating in this mode the host, usually a LAN time server operating on a high-speed broadcast medium, announces its willingness to synchronize all of the peers, but not to be synchronized by any of them. It seems to me, though, that any host except a leaf node would probably be in several modes. For example, I might have a local area network with three NTP servers, each in Symmetric Active (1) mode with respect to one another. They would also each be clients (3) of one of the many public stratum two time servers. Lastly, they would all server as servers (4) to the many local clients. Is the point that they're only in a given mode for a moment during the synchronization? If so, how does a host know to switch? I'm only looking for enough depth here to discuss the issue in an educated manner, not to write a custom time server.

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  • Why do operating systems do low level stuff in C and C++? Why not just C++?

    - by Cole Johnson
    On the Wikipedia page for Windows, it states the Windows is written in Assembly for the bootloader and task switcher, and C and C++ for kernel routines. This confuses me because AFAIK, you can call C++ functions from an extern "C"'d block as C++ is just C with extra features (all of which can be rewritten in C if you wanted to AFAIK). I can get using C for the kernel functions so pure C apps can use them (like printf and such), but if they can just be wrapped in an extern "C " block, then why code in C? So my question is: Why would a kernel be written in both C and C++ instead of just C++

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  • How and why are operating systems bootable from a USB?

    - by user114638
    I'm told to install ubuntu on my laptop for work in order to learn shell scripting. I've read the best way is to install ubuntu on a USB stick and partition my HDD. I'm curious how an OS is bootable from a USB stick? Is it literally just a small interface that can be put anywhere? This reminds me of a time I downloaded a game onto my USB stick, when I brought it to my friends house he told me it will run slow if I don't install it and only run it from the usb, is this different from running ubuntu from a usb? Will ubuntu be slow?

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  • If you develop on multiple operating systems, is it better to have multiple computers + displays?

    - by dan
    I develop for iOS and Linux. My preferred OS is Ubuntu. Now my software shop (me and a partner) is developing for Windows too. Now the question is, is it more efficient to have multiple workstations, one for each target OS? Efficiency and productivity is a higher priority than saving money. I have a 3.4Ghz i7 desktop workstation running Ubuntu and virtualized Windows with two displays, and I'm putting together an even more powerful i7 Hackintosh with 16GB RAM (to replace my weak 2.2Ghz i5 Macbook Pro). My specific dilemma is whether I should sell the first computer and triple boot on the second one, or buy two more displays and run both desktop systems simultaneously. Would appreciate answers from developers who write software for multiple OSes. Running guest OSes in VirtualBox on one system not ideal, because in my experience performance is seriously degraded under virtualization. So the choice is between dual/triple booting on one system vs having two systems, one for OSX+iOS/Windows (dual boot) and the other for Ubuntu (which I prefer to use as my main OS). For much of our work, I write a server-side application in Linux and a client for iOS (or for Windows or OS X) simultaneously.

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  • Linux is not an operating system, or is it?

    <b>Technology & Life Integration:</b> "There is a word in the English language (which I hope I am using) called context. In other words, I use the word Linux in the context of a complete Linux based distribution and believe that my readers understand that context."

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  • How to have 3 operating systems on a mirror RAID 1.

    - by Chris_45
    How do one proceed if I want to have 3 Operating Systems: Windows 7, Ubuntu, Debian plus a swap partion, all in all 4 partitions? Lets say I have 2 disks, each 640 GB and make room - 300 GB for Windows 7, 160 GB Ubuntu, 160 GB Debian and the rest for swap 20 GB. Where do I make these partitions, do I first make one big raid array 1 in BIOS and then partition when Windows 7 is installed or do I already in BIOS make these 4 partitions?

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  • Why are Linux-based operating systems considered safer than Windows?

    - by echoblaze
    I hear that Linux-based systems are better for security. Apparently they don't have viruses and do not need antivirus software. Even my university claims this - they refuse to have Windows on their servers, which is a real shame because we wanted to use the .NET framework to create some websites. The only reason I can see Linux being safer is because it's open-source, so bugs theoretically would get caught and fixed sooner. I know a bit about how operating systems work, but haven't really delved into how Linux and Windows implement their OS. Can someone explain the difference that makes Linux-based systems more secure?

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  • Parameters for selection of Operating system, memory and processor for embedded system ?

    - by James
    I am developing an embedded real time system software (in C language). I have designed the s/w architecture - we know various objects required, interactions required between various objects and IPC communication between tasks. Based on this information, i need to decide on the operating system(RTOS), microprocessor and memory size requirements. (Most likely i would be using Quadros, as it has been suggested by the client based on their prior experience in similar projects) But i am confused about which one to begin with, since choice of one could impact the selection of other. Could you also guide me on parameters to consider to estimate the memory requirements from the s/w design (lower limit and upper limit of memory requirement) ? (Cost of the component(s) could be ignored for this evaluation)

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  • Operating Systems supported by the Intel SR1435VP2 Server Platform?

    - by Xspence
    I recently had two Intel SR1435VP2 Servers (with SE7320VP2 server boards) donated to me from a colleague. Google hasn't yielded much more than user manuals when searching for OS-compatibility answers. I have worked with flavors of Linux such as Ubuntu and Debian, but Intel only documents that they have tested proprietary operating systems such as SuSE, Solaris and Red Hat as documented on their driver downloads page. Has anyone worked with these machines before, and if so, do you know if the SR1435VP2/E7320 chipset supports OS's such as CentOS, Debian or Ubuntu? If you need more information or clarification, let me know. This is all new for me. Thanks in advance.

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  • Does Virtual Machines with Microsoft server 2003 with Host operating system Vista Home Premium suffer from Vista contraints?

    - by mokokamello
    Experts ! i have a machine with vista home premium and i wanted to share a folder with my colleagues unfortunately i vista allow only 10 concurrent connections to a shared folder one of my colleagues advised me to install a Virtual machine with windows server 2003 so that i will be able to share the folder with more than 1000 user. another colleague stated that the kind of virtual server does not matter, what matters is the host OS, in this case vista. so the folder will be shared by no more than 10 users. my Question is Does Virtual Machines with Microsoft server 2003 with Host operating system Vista Home Premium suffer from Vista contraints?

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