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  • "This CPU is not compatible with 64-bit mode." - Installing Windows 7 Ultimate 64-bit on a netbook with a 64-bit Intel Atom CPU

    - by galacticninja
    I tried installing Windows 7 Ultimate SP 1, 64-bit on a netbook (Lenovo IdeaPad S110), which has the Intel Atom N2800 (1.86 GHz) as its processor, but I get the following error message when the Windows 7 installation DVD is loading: It says "Attempting to load a 64-bit application, however this CPU is not compatible with 64-bit mode". The Intel Atom N2800 is a 64-bit CPU according to its webpage. I am wondering why the Windows 7 installer shows this error message, despite this. Is there something I must configure first before installing Windows 7, 64-bit? Or is the netbook not compatible with a 64-bit OS? I am trying to format the netbook and install Windows 7 Ultimate 64-bit, instead. Other details: The netbook has 2 GB RAM. The netbook initially had Windows 7 Starter (32-bit) installed.

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  • How does an OS communicate with other hardware components?

    - by Jack
    How can a program running on a CPU (mostly OS) access other PC hardware? Such as Graphic card, HDD and so? From what I read, in DOS, this was done using BIOS calls, specifically the INT instruction. But, the INT instruction should only jump to the certain space in RAM. So how can some program stored in RAM access other computer hardware, when the CPU can only access RAM, and receive interrupts? Does Windows use INT instructions as well, or is there a new way to communicate with the hardware?

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  • BGP Router reccomendations for simple redundancy [closed]

    - by Jona
    We have two sites that each have an internet connection and have a dedicated dark fibre between them. Each site has it's own IP space and we have an AS number. We're looking to be resilient to failure of the internet connection to either site and so need to buy a pair of approriate routers. Requirements are: Able to run 2 bgp sessions (one with the ISP, one with the other site router) Option to take a full table from the upstream ISPs would be nice. Able to provide HA gateways on the LAN side (e.g. 192.168.0.254 will automatically migrate if it's host router lost power) A dedicated device rather than a server running Linux / BSD Not crazy expensive. Any help / advice much appreciated.

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  • How to install Ubuntu, Windows XP and Windows 7 from scratch as triple-boot system

    - by simon
    I'm currently running Windows XP, but have ordered Windows 7. I want to keep Windows XP on a separate partition, and install Ubuntu as well. In which order should I install the OSs, and is there anything differing from an ordinary single-system install I should keep in mind? For example, does the order of partition make any difference? If I want to have the system drive as "C:" drive in both Win XP and Win 7, what should I do?

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  • Safe BIOS upgrade run from external USB-HDD and not native OS

    - by ecoologic
    I have a Toshiba M200 laptop which came with Windows Vista. After buying it, I replaced the OS with XP and recently I swapped the internal hard disk with a bigger one where I only have Ubuntu. So now I can boot XP from the external USB hard disk. There's a BIOS update available (2.3 against my 1.8) which I'd like to install and there's also a version for XP. Is it "reasonably" safe to install this upgrade for Windows XP (despite the original OS was Vista, the laptop model is the right one) from my external USB hard disk with Win XP?

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  • Favorite Linux Variety and why?

    - by Cenoc
    Right now I have Fedora dual booted with Windows 7. The reasoning behind that is just because windows was the first OS I ever used and has some essential software, and Fedora is the first linux distribution I tried, but I would like to hear the argument for other distros, as I may be looking to switch. Thanks ahead of time.

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  • linux recommendations for older pc

    - by jdamae
    Hi, I'm new to Linux and I am interested in installing the OS on an older computer I have. I want to setup a webserver and install php, perl. My pc is an older HP Pavillion a255c, Intel Pentium 4 with 512ram. I will probably add some more memory later. This pc is more like a sandbox than anything, but would like to get quickly started with the OS. Is there a particular flavor of linux I would need to download based on my older computer? Any recommendations? I was thinking about Ubuntu but not sure what version to go with. Thanks for your help.

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  • Service haproxy error

    - by user128296
    I want to configure Haproxy for outgoing mail load balancing. my configuration file /etc/haproxy.cfg is. global maxconn 4096 # Total Max Connections. This is dependent on ulimit daemon nbproc 4 # Number of processing cores. Dual Dual-core Opteron is 4 cores for example. defaults mode tcp listen smtp_proxy 199.83.95.71:25 mode tcp option tcplog balance roundrobin # Load Balancing algorithm ## Define your servers to balance server r23.lbsmtp.org 74.117.x.x:25 weight 1 maxconn 512 check server r15.lbsmtp.org 199.71.x.x:25 weight 1 maxconn 512 check And when i start service haproxy i get this error. Starting HAproxy: [ALERT] 244/172148 (7354) : cannot bind socket for proxy smtp_proxy. Aborting. Please tell me where i am doing mistake.help will appreciated.

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  • Should an HA failover occur in this scenario?

    - by joeqwerty
    I'm running vSphere 5 in an HA cluster across two hosts (vsphereA and vsphereB). I have the HA cluster configured for host monitoring and datastore heartbeat monitoring with admission control disabled (hopefully I rightfully understand that datastore heartbeat monitoring prevents inadvertent and unwanted HA failovers due to management network isolation). Each host has a single connection to a dedicated iSCSI network and iSCSI target (no MPIO). All vmdk's for all VM's exist on the iSCSI datastore. As a test of HA I disconnected the iSCSI connection on vsphereB and was surprised to see that the running VM's on vsphereB continued to run on vsphereB. The powered off VM's were showing as inaccessible (which I expected due to the fact that they weren't running and the connection from vsphereB to the iSCSI target was severed) but the running VM's continued to run and continued to be "owned" by vsphereB. I expected to see an HA failover occur for those VM's and expected to see them "owned" by vsphereA after the HA failover (which didn't occur). I'm at a loss to understand why an HA failover didn't occur for those VM's. Am I misunderstanding in which cases an HA failover should occur?

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  • what can I do with an old but working PC [closed]

    - by fskreuz
    I have an old Dell optiplex GX240 on Pentium 4 1.8Ghz and 256MB Ram (or was it 512MB). It's still in working condition but it's getting slow for me and i wanted to optimize it. I just want that old box to be usable even for simple desktop use (email, surfing, chat). I also have to note that my parents prefer use it over a laptop for some reason. Treat it as a "box-type netbook". unlike the other threads that they all prefer sending away or use as file server, firewall and that, i am looking for suggestions on how to keep it usable as the main PC. any suggestions? OS perhaps?

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  • MySQL HA and Magento DB

    - by Raj
    Is it possible to use MySQL cluster for Magento DB? I have Web app developed in Magento E-commerce platform and I want to make DB highly available using the MySQL cluster. Magento supports only InnoDB database engine and MySQL HA uses it's own engine NDB. The Percona XtraDB Cluster, Does it change the InnoDB storage engine to XtraDB? Can I rollback to the MySQL native replication from Percona XtraDB Cluster?

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  • DPI Scaling in Windows 8.1 via command line

    - by Vulcan
    I'd like to create a keyboard shortcut to quickly and easily change the DPI scale on my machine. In Windows 8.1, the desktop display DPI scale can be set via the control panel (pictured below), taking effect immediately. Alternatively, the scale can be set manually in the registry, but doing so requires that the user sign in and out or restart the machine in order to take effect (and only works to imitate the "one scaling level for all my displays" option). How can I set the DPI scale via the command line, or otherwise programmatically?

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  • How to dual OS 32-bit/64-bit Windows 7 Ultimate.

    - by Cyril Horad
    I have a problem with regards to my nVidia driver not running on 64-bit. I decided to install both 32-bit and 64-bit on my ASUS K42JC (4GB RAM upgrade) in order to function the nVidia on the 32-bit. My question is, how could I make my laptop run on either 32-bit or 64-bit OS. What options I am suppose to use, a single, double, or triple partition? From an answer: Well. When I installed the nVidia driver from either the ASUS site and the prescribed driver from NVIDA site via System Requirements Lab, both ended up freezing my laptop to the point when the desktop is about the finish booting. I have tried three(3) times reformatting and trying to fix the problem. Yet no use. I filed a ticket to the Asus support but for now no replies yet. But this bothers me, why wouldn't the nVidia run on 64bit yet it runs perfectly on 32bit.

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  • Ubuntu Linux Utilities

    - by Wayne
    I've never used Ubuntu Linux before, but I am researching about the main system tools that are included, e.g. Windows has Disk Cleanup, Disk Defrag... but what does Ubuntu Linux have. I need to know what the main five utilities that are included on Ubuntu Linux and what do they do.

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  • Good Enough Failover Strategy for DNS / MySQL / Email

    - by IMB
    I've asked and read a lot questions regarding DNS failover but the more I read the more complicated it becomes, some people say it's good enough some say it isn't. No clear answers from what I read. I was wondering if we can set it straight once and for all, at least for the requirements of most websites out there. Right now let's assume the following: We don't need really need load-balancing, what we need is a failover solution. We are running a website based on LAMP on a VPS. We need to make sure that the Web Server, MySQL, Email are always accessible if not 99%. Basically here's my idea and questions about it: Web Server: We need at least one failover server (another VPS on a separate data center). Is DNS Failover via Round Robin good, if not, what's the best? And how do you exactly implement it? How do you make the files you upload/delete on Server A is also on Server B? MySQL: I've only read a brief intro to MySQL replication and I assume that I can replicate Server A to Server B and vice versa on the fly right? So just it case Server A fails and Server B is now running, it will continue to work and replicate to Server A when it becomes available. So in essence Server B is now the primary server, and will later on failover to Server A, should a failure happen again. Email: If we are gonna use DNS Failover, using webmail or relying on emails stored on the server is probably not a good idea right? Since some emails might be on Server A while some might be on Server B? I assume a basic email forwarder to a 3rdparty is good enough (like Gmail for example) to ensure all emails are kept in one place. Here's a basic diagram for a better picture: http://i.stack.imgur.com/KWSIi.png

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  • Suggestions on providing HA access to an external (fibre) RAID subsystem

    - by user145198
    We are looking at upgrading our storage capacity with an external RAID subsystem that has redundant (2) fibre controllers, each controller has 4 x 8 Gbps fibre ports. I would like to make access to this storage system occur via HA Linux. Ideally I would connect 2 fibre ports from each controller into each Linux server, and then export either NFS or iSCSI via a 10 Gbe interface. I have seen plenty of references to DRBD, however all of those references tend to use block storage that is solely attached to each machine, rather than having a shared block storage device, so I am unsure if DRBD could (or should) be used in this case. Ideas?

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  • Which Windows OS Supports 8 GB RAM in a Laptop and Suggestions for a Better Laptop for Personal & De

    - by Ellen
    I am about to purchase a laptop and have zeroed on the following two of them. Toshiba L500-ST2544 Toshiba L505-ES5034 The Common Specification for both of them are as follows - RAM - 4GB DDR3 Memory HDD - 320 GB Processor - Intel® Core™ i3-330M Processor WebCam and Mic - Available HDMI Port - Available Numeric Key Pad - Available Windows 7 (64 bit) Home Premium Now, the only difference between ST2544 and ES5034 is that, the ST2544 has a maximum of 2 slots with 2 GB in each. So, you can have a max of 4 GB RAM in that. The ES5034 can support 8 GB RAM, so, in a couple of years, if I want to add another 4 GB RAM I will be able to do it. The price for ST2544 is USD 629.00 whereas, the price for a ES5034 is USD685. A difference is USD 55.00 (not a major amount, but still something extra). Is it worthwhile going for the ES5034? Which Windows Operating System supports 8 GB of RAM?

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  • IIS/MSSQL HA on two servers? NLB + Mirroring

    - by Igor K
    Currently have the one server doing MSSQL/IIS. Can use NLB with two servers running IIS for HA and can use database mirroring and put the failover partner in the connection string for HA. Can we use NLB + Mirroring together? So if one of the servers died (ie power plug removed), everything will continue to work (after the timeout for the mirror to become the principal)?

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  • How to do client side NFS failover in Linux?

    - by Doug
    I have a CentOS 6.3 client that needs to access NFS storage. There are two NFS servers that serve up the same content stored on a SAN with a clustered filesystem. How do I set up CentOS to failover to the backup NFS server if needed? When I Google, I keep reading that Linux does not support this, but that would be strange since there is plenty of information out there on how to set up a clustered Linux NFS server farm...

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  • sizes of RAM, of virtual memory and of swap for 32-bit OS

    - by Tim
    If I understand correctly, a 32-bit OS (Ubuntu) can only address 4GiB memory, so RAM with size larger than 4Gib will only be used 4Gib of itself and the rest is a waste. I am now confused about this situation for RAM with similar one for virtual memory and for swap. with virtual memory being swap + RAM, if the size of the virtual memory exceeds 4Gib, will the exceeding part be a waste for the 32-bit OS? if I now have to choose the size for my swap partition, is it a factor to consider that the 32-bit OS can only address 4GiB memory? Does the size of swap have to be chosen with respect to the 4Gib addressible limitation? Will the swap exceeding 4GiB always be a waste? is virtual memory equal to RAM and swap? or can virtual memory use space on the hard drive outside the swap partition? Thanks and regards!

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  • "Stable" operating system - what does it mean exactly?

    - by Maciej Ziarko
    I've been using Linux for more than 2 years now, and I'm a satisfied user. I started with Ubuntu, then switched to Fedora and now I'm fond of Linux Mint. Linux is often described as "stable". I have some inkling of what it might mean, but today I felt the need to understand it completely. So my question is... What does it mean that operating system is stable? What are the features of stable system?

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