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  • Ubuntu odd mouse and keyboard behavior when window gains inner focus

    - by Scott
    This morning on my Ubuntu 10.10 system when I open a window - for example, system-preferences-about me, if I click in to a field such as "work email", I can no longer close the window with the mouse! Clicking the X on the window will not work. Also, I loose the ability to click on anything else - clicking on the desktop, icons, menus, workspaces, etc. do not work. Even the effect when you hover over a folder on the desktop and that folder highlights - that stops until the window is closed. If I open this same screen but do not click in to a field, everything is fine - I can close the window with the X and everything else works fine. Same thing happens with several other windows I tried. Even calculator - I can open it, everything is fine until I click on a button in the calculator - then no ability to click on anything else. Have to Alt-F4 to close the window. The system is only about a week old from a fresh install (64 bit ubuntu - quad core amd machine). I uninstalled wine, turned off remote desktop/disabled in startup, also in startup disabled visual assistance, bluetooth, dropbox, klipper. Reboot, no difference. The only other thing non-standard I see in startup is nvidia. Using a logitec usb mouse, saitek usb keyboard. Was working fine yesterday. I can not think of anything I did / installed yesterday. I switched themse, then went to update manager and saw two x server / x org related updates and installed them, reboot and NOW IT IS FINE! However, then I re-enabled dropbox, klipper and remote desktop rebooted and the problem is back. Again I disabled and rebooted. Problem is still there!! So somehow I fixed it at least for a few minutes, but now it is back and I am out of ideas.

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  • Ubuntu 10.10 - disaster - what other linux for beginner?

    - by A-ha
    Guys, I've tried to install ubuntu (desktop and notebook ed) on my laptop and unortunately I have to say that as despite the fact that installation process supposed to be easy I couldn't finish installation of this system - didn't detect my keyboard or rather lost my keyboard as soon as I tried to switch on/off pad on my laptop. After I've discovered that, I started all over again (this time without touching my laptop's pad during installation) and yes, eventually it get to the end of installation. Unfortunately, when I've tried to switch my pad (sometimes I just do not want to use a mouse) the whole system froze. So I had to restart it with the power button and this time I didn't touch pad at all, plugged in mouse and tried to rearrange taskbars according to my liking (all taskbars on the top side of the screen and auto-hide on) and I gave up. It is so unfinished that I just can't be bothered to use it. I would like to have one linux system on my machine so I started googling and most of the links are to either ubuntu (which I just do not want to touch for now) and suse or commercial versions of linux. I do not really mind paying for something (and having experience with ubuntu I'd rather pay and have something pro then get it free and discover that it's unusable). So could someone please provide short list of linux distros which would be appropriate for a beginner, and I don't mind paying for it, I just want it to be a professional product.

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  • Is there a utility to visualise / isolate and watch application calls

    - by MyStream
    Note: I'm not sure what to search for so guidance on that may be just as valuable as an answer. I'm looking for a way to visually compare activity of two applications (in this case a webserver with php communicating with the system or mysql or network devices, etc) such that I can compare the performance at a glance. I know there are tools to generate data dumps from benchmarks for apache and some available for php for tracing that you can dump and analyse but what I'm looking for is something that can report performance metrics visually from data on calls (what called what, how long did it take, how much memory did it consume, how can that be represented visually in a call stack) and present it graphically as if it were a topology or layered visual with different elements of system calls occupying different layers. A typical visual may consist of (e.g. using swim diagrams as just one analogy): Network (details here relevant to network diagnostics) | ^ back out v | Linux (details here related to firewall/routing diagnostics) ^ back to network | | V ^ back to system Apache (details here related to web request) | | ^ response to V | apache PHP (etc) PHP---------->other accesses to php files/resources----- | ^ v | MySQL (total time) MySQL | ^ V | Each call listed + time + tables hit/record returned My aim would be to be able to 'inspect' a request/range of requests over a period of time to see what constituted the activity at that point in time and trace it from beginning to end as a diagnostic tool. Is there any such work in this direction? I realise it would be intensive on the server, but the intention is to benchmark and analyse processes against each other for both educational and professional reasons and a visual aid is a great eye-opener compared to raw statistics or dozens of discrete activity vs time graphs. It's hard to show the full cycle. Any pointers welcome. Thanks! FROM COMMENTS: > XHProf in conjunction with other programs such as Perconna toolkit > (percona.com/doc/percona-toolkit/2.0/pt-pmp.html) for mySQL run apache > with httpd -X & (Single threaded debug mode and background) then > attach with strace -> kcache grind

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  • Update Grub on Squeeze - Kernel downgrade due VMware Server

    - by vodoo_boot
    I happen to run into various problems regarding grub and kernels. I don't really care about the kernel internas. All I want is VMware server in that dedicated root-server. 1.) What is a bzImage vs. vmlinuz? kaze:~# ls /boot/ System.map-2.6.32-5-amd64 bzImage-2.6.33.2 config-2.6.33.2 initrd.img-2.6.32-5-amd64 System.map-2.6.33.2 bzImage-2.6.35.6 config-2.6.35.6 vmlinuz-2.6.32-5-amd64 System.map-2.6.35.6 config-2.6.32-5-amd64 grub I updated my menu.lst (grub2): timeout 5 default 0 fallback 1 title 2.6.32.5 kernel (hd0,1)/boot/vmlinuz-2.6.32-5-amd64 root=/dev/sda2 panic=60 noapic acpi=off title 2.6.35.6 kernel (hd0,1)/boot//bzImage-2.6.35.6 root=/dev/sda2 panic=60 noapic acpi=off title 2.6.32.3 kernel (hd0,1)/boot//bzImage-2.6.33.2 root=/dev/sda2 panic=60 noapic acpi=off That doesn't do well... I think the vmlinuz file is missing initrd or so. Dunno. In fact I don't give too much about kernel boot voodoo as long as it works. update-grub(2) does not work. Does anybody know what magical trick there is to get the 2.6.32-5 booting? 2.) I thought t follow the Deban wiki.. I cannot get header-files for the installed 35.6 or 33.2 kernel in the repositories. I cannot build foreign headers because they will not match the running kernel. So how does one deal with that situtation? I'd prefer not to have to downgrade the kernel. Thanks for any answers!

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  • Windows disk change monitoring for malware analysis

    - by SuperDuck
    Not sure if this question belongs to here, because it has some relations with 'serverfault' (system backups) and 'stackoverflow' (software analysis). I'm looking for a solution to monitor disk changes on a Windows system and selectively revert them. It should be able to handle live files like registry parts, so may need to be an offline backup software. It shouldn't silently pass over files which the current admin user doesn't have permissions on (files with no permission entries or owned by the 'system' user) Registry change tracking would be a bonus but is not a requirement I use virtual machines for malware analysis, there is even no solution to list file changes in disk snapshot files (delta VMDK). I currently use Ashampoo for monitoring changes. Though it's the best one between similars, it's not a good software and hasn't really evolved in many 'platinum', 'deluxe' versions released in the last 10 years (it even used non-resizable windows until the latest version). The real problem is it misses some disk / registry changes. Perhaps it only compares modification dates and doesn't catch a change if the dates are preserved. So, I think the solution should compare files using hashes, or file sizes at least. There are numerous backup software out there and I'm sure one can handle this, offline or online.

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  • Losing SQL connections

    - by john pavelka
    sql servr 2005 - Standard; one dedicated sql server (VM); windows server 2003; Small databases; About once a week we lose all sql connections. It seems to fix itself after about 5-10 minutes. System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. --- System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. We don't have a fully qualified DBA; it's kind of a joint effort here. Can somebody give me some general ideas for troubleshooting the network side and the application side? We already ran a few tuning profiles and ran through Database Tuning Advisor to apply indexing recommendations. It would sure be nice if there was a way to take a snapshot of what was running on sql server when these 100% cpu spikes occured, but sometimes we're not around. Is it common to throttle CPU for certain processes? Can this be done with Windows server 2003? For example, if security apps were making cpu spike to 100%, is there a way to limit their cpu usage? Any advice is appreciated. thanks,

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  • Debian Wheezy (testing) df reported volume size

    - by TheRoadrunner
    I am a bit confused about the /dev/sda* references since I installed Wheezy instead of Squeeze on a testing box. fdisk -l returns: Disk /dev/sda: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000e9623 Device Boot Start End Blocks Id System /dev/sda1 * 2048 480278527 240138240 83 Linux /dev/sda2 480280574 488396799 4058113 5 Extended /dev/sda5 480280576 488396799 4058112 82 Linux swap / Solaris This seems correct. But df -h /dev/sda (and /dev/sda1 and /dev/sda2 and /dev/sda5) returns: Filesystem Size Used Avail Use% Mounted on udev 10M 0 10M 0% /dev The same happens with every entry under /dev/disk/by-id and /dev/disk/by-path. Only one of two entries under /dev/disk/by-uuid returns the correct volume size: df -h /dev/disk/by-uuid/cacdbad6-7e6b-4e80-84ba-e3c77ef48796 Filesystem Size Used Avail Use% Mounted on /dev/disk/by-uuid/cacdbad6-7e6b-4e80-84ba-e3c77ef48796 229G 22G 196G 11% / Contents of /etc/fstab: # /etc/fstab: static file system information. # # Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> # / was on /dev/sda1 during installation UUID=cacdbad6-7e6b-4e80-84ba-e3c77ef48796 / ext4 errors=remount-ro 0 1 # swap was on /dev/sda5 during installation UUID=45840d13-ee36-4e77-8e73-16cbdff25eb1 none swap sw 0 0 /dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0 /dev/fd0 /media/floppy0 auto rw,user,noauto 0 0 It seems all other references than the uuid points to the swap partition. Is this because Wheezy is in testing, and should it be reported as an error?

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  • What hardware would I need (approx) to run ESXi server?

    - by mr.b
    Hi, I am considering to purchase off-the-shelf commodity hardware in order to build server that will host virtual machines using ESXi server. Intended purpose for this server is NOT mission critical tasks. It will have to run perhaps 20-50 Windows XP/Vista/7 virtual machines (in total, but closer to 20 figure). Each guest would have to have 1-2 GB of ram, and probably two-three times more disk space than guest OS needs with clean install and all updates applied (that would be around 6-8 GB for XP, and i believe closer to 10-15 for win7). Those guests will act as a test ground for a new product that is network management software, thus guests will idle most of their time once initially loaded, but if I give them some task to complete, they should be able to perform reasonably well. Now, from what I have learned... CPU is usually not much of an issue (6 cores would do it), memory should not be lacking, but doesn't have to be sum of all guests, because of overcommitment... That leads me to IO, which is, as it seems, the bottleneck. Since I have very little experience with ESXi (and ESX, too) server, I'd like to ask: How much memory could I save by overcommitment, and how does it affect performance? Is 6-core cpu enough to run above described system? Would it be possible to run entire server off two (or even one) SSD drives (to host system virtual disks, with few additional HDDs (2-3) in RAID 0 to be used as secondary storage? I read somewhere that ESXi allows having something like "master image", essentially virtual machine that is "deployed" many times, so that disk space can be saved by having only differences stored by specific guests, instead of copying around whole virtual disks. Is this true, and how can this help me? Are there any other things I need to take into consideration when building this off-the-shelf solution? I should probably mention here that I'm fully aware of issues like SPOF regarding power supply, raid 0, etc, but since it's only a testing ground and not a production system, it's not so important for me. Thanks, B.

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  • How to access original files from before a symlink gets updated, which have since been moved to another dir

    - by Luke Cousins
    We have a website and our deployment process goes somewhat like the following (with lots of irrelevant steps excluded) echo "Remove previous, if it exists, we don't need that anymore" rm -rf /home/[XXX]/php_code/previous echo "Create the current dir if it doesn't exist (just in case this is the first deploy to this server)" mkdir -p /home/[XXX]/php_code/current echo "Create the var_www dir if it doesn't exist (just in case this is the first deploy to this server)" mkdir -p /home/[XXX]/var_www echo "Copy current to previous so we can use temporarily" cp -R /home/[XXX]/php_code/current/* /home/[XXX]/php_code/previous/ echo "Atomically swap the symbolic link to use previous instead of current" ln -s /home/[XXX]/php_code/previous /home/[XXX]/var_www/live_tmp && mv -Tf /home/[XXX]/var_www/live_tmp /home/[XXX]/var_www/live # Rsync latest code into the current dir, code not shown here echo "Atomically swap the symbolic link to use current instead of previous" ln -s /home/[XXX]/php_code/current /home/[XXX]/var_www/live_tmp && mv -Tf /home/[XXX]/var_www/live_tmp /home/[XXX]/var_www/live The problem we are having and would like help with is that, the first thing any website page load does is work out the base dir of the application and define it as a constant (we use PHP). If then during that page load a deployment occurs, the system tries to include() a file using the original full path and will get the new version of that file. We need it to get the old one from the old dir which has now moved as in: System starts page load and determines SYSTEM_ROOT_PATH constant to be /home/[XXX]/var_www/live or by using PHP's realpath() it could be /home/[XXX]/php_code/current. Symlink for /home/[XXX]/var_www/live get updated to point to /home/[XXX]/php_code/previous instead of /home/[XXX]/php_code/current where it did originally. System tries to load /home/[XXX]/var_www/live/something.php and gets /home/[XXX]/php_code/current/something.php instead of /home/[XXX]/php_code/previous/something.php I'm sorry if that is not explained very well. I'd really appreciate some ideas on how to get around this problem if someone can. Thank you.

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  • Changing SkyDrive default location on Windows 8.1

    - by jmblack
    Update: This issue is due to the use of any non-local location for the SkyDrive folder. I've currently worked around this by using a local folder, but this has not resolved the original problem. I am trying to change the location where SkyDrive is located in Windows 8.1. This is the newly integrated SkyDrive, and not a downloadable client. There are a couple of similar questions on this site, but they pertain to Windows 8 and 8.1 Preview: Changing the SkyDrive default path in Windows 8.1 (Windows 8.1 Preview) How do I change the SkyDrive default folder in Windows (Windows 8) The SkyDrive folder is a system folder in 8.1, and like other system folders, has a Location tab in its properties that theoretically lets you change its location. I was able to do this with other system folders such as Downloads and Pictures, but there is an error when I try to change this for SkyDrive. Edit: The location that causes this error is a mapped network drive. The error does not occur when trying to move SkyDrive to another location on the same drive. There are no permission restrictions on the mapped network drive. Edit #2: This is the method I followed that produced the error: A screenshot of the error can be found here Has anyone else encountered this or have any information on this?

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  • How do you avoid that server documentation gets out of sync with the actual setup?

    - by Frerich Raabe
    I'm a hobbyist maintaining a small FreeBSD server serving mail via IMAP - it's an exercise in server administration. The setup does have reasonably good documentation (in AsciiDoc format) which recently allowed another person to recreate the entire setup from scratch in less than 30 minutes. However, I noticed that after the initial setup, it easily happens that small changes done to the system (say: inetd gets disabbled, my IMAP server listens on an additional port for ManageSieve connections, a new router is added to the exim configuration) don't end up in the documentation immediately (if at all). My idea was to avoid this problem by (partially?) generating the documentation out of the configuration files and the comments therein - one way to implement this may be to put /etc and /usr/local/etc into some source code management system (say - git) and then run a script which regenerates the documentation on every commit. However, I'm not sure whether that would be overkill and/or too difficult to get right (after all, I don't want complete copies of the source files in my documentation but rather just the diffs). How do other people avoid that the server documentation gets outdated - is there a good way to keep them in sync automatically, or do you just have the discipline to update the documentation the same time you modify the system?

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  • Port(s) not forwarding?

    - by user11189
    I have cable internet service through Charter Communications and feed two desktop computers through a Linksys RP614v3 router. One system is my wife's running WinXP Home Edition and the other is mine, running Vista Home Premium (sp1). I have port forwarding configured in the Linksys so I can access the Vista system remotely using TightVNC. Initially, it worked great and I was able to remotely tend email and access local files while out of town for work. Lately, the cable internet service appears to flicker intermittently and upon return, my Mailwasher program loses ability to access the net and I've been unable to make the remote connection. When I reset the port forwarded for email in the router control panel, Mailwasher functionality returns but as I'm home when that happens, I have no easy way to check remote access until the next time I'm on the road or at work. I'm at my wit's end -- the TightVNC client accesses fine from my wife's system from behind the modem/router setup but I don't know how to maintain whatever gets reset when I fiddle with the control panel and the need to do so at all is new. I accessed it fine for a week off and on while out of town a month ago and now I can't leave home and access it from work an hour later.

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  • PC won't boot from IDE HDD when SATA data drive connected

    - by Kevin
    I have an old Pentium 4 system running XP. The machine is set up as an HTPC. It was set up and running well with 1 SATA drive as a boot drive, another SATA drive to store TV recordings, and an IDE drive to store more recordings. Last week the original boot drive (a SATA drive) failed. The BIOS would no longer recognize it. I had a disused IDE drive hanging around that was large enough for the OS, so I reformatted it and installed XP on it. Now the system will only boot if I do not connect the remaining healthy SATA data drive. All three drives are recognized by the BIOS, and I have set the boot order so that the IDE drive with XP on it has top priority, but after the BIOS recognizes the drives, etc. I just get a black screen. I know the SATA drive is functional, because if I hot plug the drive AFTER the system is booted (I know I'm not supposed to do this), I can go into the control panels and mount the drive, and see all the files and folders on it in Windows Explorer. Any suggestions on what is going on and how to fix it? Many thanks.

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  • Use old raid drive as boot device without data loss

    - by Gabriel
    There were two disks in sw-raid. There were /dev/md1 as swap, /dev/md2 as boot and a /dev/md3 with ext4. The sw-raid was disabled by stopping and removing mdadm and then zeroing the superblock on each /dev/mdX partition with: sudo mdadm --zero-superblock /dev/sda1 sudo mdadm --zero-superblock /dev/sda2 sudo mdadm --zero-superblock /dev/sda3 In the disk that is the first boot device, I don't know if it's relevant, the system type of each partition was set back from fd to 82 or 83 with fdisk, /etc/fstab was updated, changing /dev/mdX to /dev/sdaX, and grub was reinstalled on the boot partition (/dev/sda2) with grub-instal. But the system wont boot. What else should I do to use this disk as the boot device without reinstall or data loss? Current output of fdisk Device Boot Start End Blocks Id System /dev/sda1 2048 33556480 16777216+ 82 Linux swap / Solaris /dev/sda2 * 33558528 34607104 524288+ 83 Linux /dev/sda3 34609152 3907027120 1936208984+ 83 Linux With it doesn't boot I mean that it stops in the grub console (with the grub> symbol). A ls command says: (hd0) (hd0,msdos3) (hd0,msdos2) (hd0,msdos1) (hd1) (hd1,msdos1) It's weird because hd1 was formatted with ext4...

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  • What differences are there between "home" switches and "professional" switches?

    - by pjreddie
    Our radio station uses a PtP wireless system to stream our radio and TV signals from our studio up a hill to our transmitter. We have been having problems with warbly sound and drop outs that come from some point in this system. An engineer that occasionally visits the station thinks it could be the switches we use on each side of the PtP wireless system to connect the PtP devices to the encoders and decoders and wants us to get two of these switches: http://www.amazon.com/Netgear-JGS516-ProSafe-16-Port-Ethernet/dp/B0002CWPOK/ref=dp_return_1 The encoder/decoder setup only streams 8Mbps total so it seems like the switches we have should not be stressed out, unless they are causing sufficient latency to degrade the performance of the encoder/decoder. At each end of the connection we only have 4 connections, is there any reason we couldn't get a cheaper, "home" quality switch like this: http://www.amazon.com/D-Link-DGS-1005G-5-Port-Gigabit-Desktop/dp/tech-data/B003X7TRWE/ref=de_a_smtd Is there a significant difference that we would notice in terms of latency between these two switches? How much does the quality of the switch actually matter in this scenario? Any help is appreciated, feel free to ask questions if anything needs clarification. Thanks

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  • Windows Home Server 2011, No disks "suitable for a backup destination"

    - by Scott Beeson
    I recently installed Windows Home Server 2011 and love it. However, when I try to set up server backups, it says no suitable disks are available. Initially, before I set up my RAID, it found one of my twin drives and said it would work. Once I set up the mirroring, that one is no longer available (obviously). However, I have an internal SATA 1TB drive and an external USB2.0 1TB drive hooked up. Both are recognized by Disk Management. WHS11 still says nothing suitable for backups. The two drives details are as follows: Edit to clarify: The system partition is on Disk 0, not listed below. The two below are the two that SHOULD be available for system backups. Disk 1: Dynamic "Data" (D:) 931.51 GB NTFS, Healthy Disk 3: Basic 200 MB Healthy (EFI System Partition) "Backup" 930.66 GB NTFS, Healthy (Primary Partition) What's a bit odd is that in Disk Management the "Backup" volume does not show a drive letter, even though I assigned Z: (which is reflected in "My Computer". I also cannot make this a dynamic disk as it says it's unsupported by the device.

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  • What is the solution to enable Dymo Turbo 400 Label Printer to work on Win 7 / 64-bit?

    - by mdpc
    It's Christmas time and time for printing labels for all those Christmas cards. I've upgraded to Windows 7 64-bit from XP. I've been unsuccessfully attempting to get the connected Dymo 400 Turbo label USB printer to work again. The latest manufacturer drivers have been successfully loaded and installed. The drivers are supposed to work on Windows 7/64-bit. The Win 7 system(s) in question are patched and up-to-date on that score. The Windows Update site responds with a driver when the USB cable is connected to this printer. The printer queue seems to be established correctly. What happens is that I submit a job to the printer (either using the DYMO s/w or not), it delays for a period of time, and then I get the message 'printing error'. Can't seem to locate the appropriate error in the new and improved event log. Several combinations of rebooting, re-installation and power cycling components fail to make the printer work. Sometimes during some type of reset it spits out the last thing to be submitted, but that seems intermittent. I have tried different USB cables and different USB (2.X) ports as well. I have run the Windows 7 troubleshooter it tries to fix the problem but alas it doesn't. Interestingly, trying the USB printer (and its associated manufacturer drivers and s/w) on another Windows 7 64-bit system has the identical failures noticed on the original system. I did not find anything on the manufacturers' site concerning this problem. The printer has no hardware problems or issues.

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  • Can a non-redundant RAID5 cause any serious problems (compared to RAID0)?

    - by leemes
    I used to have a three-disc RAID5 (mdadm) in my computer for personal media storage (music, videos, photos, programs, games, ...). It had three discs with 750 GB each, resulting in an array capacity of 1.5 TB. One day (one year ago), I needed one of those discs to install another operating system. I thought, I don't need the redundancy anymore since I backup the most important stuff (personal photos e.g.) on an external disc anyway. So I decided to remove one of the three discs without converting the RAID to RAID0 or even two separate discs, because I had no temporary storage (since one cannot simply convert the RAID5 to RAID0 AFAIK). So now, for about one year, I have a non-redundant RAID5 with 2 of 3 discs running. Sometimes, one of the discs has a defective contact at the power cable or something similar causing the drive to stop working temporarily (I don't know exactly what it is). Since it still works when rebooting the computer and in most cases by calling some mdadm commands, it wasn't that problematic. Note that the data is not very critical, since I still have a backup of the most important stuff. But in the last few weeks, one of the drives fails very frequently (every few hours), so it gets really annoying to manage this. My questions are: Is there any disadvantage (apart from the annoying management) of a non-redundant RAID5 (with one drive less than typical) over a RAID0? If I understand it correctly, both have no redundancy and the same capacity. On a temporary drive failure, I can restart the array in both cases, assuming that the drive itself still works after the failure. Can it happen that the drive contents alter on a drive failure, making the array inconsistent? If so, can I tell mdadm to check the array for failures (without a file system level checking tool)? Since the drive most probably only has a defective contact causing it to fail for a second only, can I tell mdadm to automatically restart the array, so I will not even notice the failure if no application wanted to access the file system during the failure?

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  • Computer not finding hard drives on boot -sometimes-

    - by todd.pund
    Computer specs: Mobo: Gigabyte ultradurable 3 - GA-970A-UD3 Processor: First gen I7 3.2GHZ Ram: 8GB Kingston DDR3 1066 Video Card: EVGA NVidia GTX 460 1GB Hard Drive: 500MB 7200rpm x2 (can't remember brand, sorry I'm at work.) Last week my developer preview for Windows 8 ran out so I put my copy of windows 7 back on the computer. The computer at that point started suffering from frequent freezing and crashing. When I rebooted the computer sometimes it wouldn't find the system HD at all. When I looked at the post screen it seemed to show that it wasn't finding either of the HDs. Then yesterday when turning on the computer I just got GRUB as a message (not a GRUB prompt, just GRUB) I haven't had a dual boot of Linux for at least a year. I loaded windows 7 recovery console from the disk and ran: bootrec /fixboot bootrec /fixmbr Which did not help. At that point I just installed Ubuntu 13.04 over the windows 7 install and still received the GRUB post. I went into the BIOS and switched the Hard Drive priorities and then it loaded into Ubuntu fine. For several days everything was just hunky dory until I installed the Ubuntu version of Steam, install Portal and tried to run it. At that point the computer froze and after hard rebooting couldn't find the hard disks again. Then after restarting the system it loaded up fine again and no issues since. (I have not tried to launch portal again). My next thought is to remove the system hard drive and try to use the secondary as the master to see if the primary HD is bad. I'm sorry if this has been confusing, I'll answer any questions I can. Any thoughts?

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  • Is Ubuntu a bad distro for a standalone mysql database server?

    - by DhruvPathak
    I read an article here : http://www.mysqlperformanceblog.com/2011/12/08/which-linux-distribution-for-mysql-server/ On the other end there are Debian and Ubuntu. Both use tool called dpkg for package management. There isn’t a month that I log in to a system based on either distribution where there are no issues with packages consistency. Unfinished installations, unresolved conflicts are so common that it’s just beyond simple negligence. The packaging system is just not robust enough. Another problem is that one broken package may block you from installing or uninstalling anything else. Imagine that someone left system in such shape, you prepared for downtime, stopped MySQL and… error – text editor has not been properly installed, so you cannot upgrade MySQL either until the problem is fixed. In a stressful situation when downtime clock ticks – annoying at best We prefer Ubuntu server because of familiarity and Ubuntu also being development environment. Questions: Is Ubuntu used commonly in production for a mysql database server ? Is it worth the trouble ever to have one distro eg Ubuntu in web server, and another say Red Hat in database server ? Or Is a homogenous server pool a better choice ?

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  • Puppet: is it ok to "force" certname when you expect to shuffle nodes around?

    - by Luke404
    We all know (good example on SF) that Puppet hostname detection could be... fun. At our company (and I guess we're not alone at this) we usually pre-configure servers at our offices and test them before bringing the gear to a remote datacenter and rack them. Of course the reverse dns will change when doing that, even if we don't change the actual hostname of the system. We're slowly drafting our puppet setup and I'd like to be sure those moves won't create problems. My idea is to explicitly configure the desired full FQDN of the system as certname in puppet.conf at server provision time (before the very first puppet run). My process would look something like this: basic o.s. installation basic network configuration, enough to reach the internet and resolve dns install puppet and set up certname start puppet and let him manage the whole configuration test, fix problems in config (via puppet), re-test, and so on... manually stop puppet set up new network configuration for the datacenter network move the machine to DC turn it on puppet should automatically start and keep on doing its job The process is supported by detecting the environment in puppet's manifests (eg. based on subnet, like they do at Wikimedia) and modify configuration as needed (eg. resolv.conf contents appropriate for each network). Each node's certname will never change for the whole system life cycle. Is there any problem with this approach? Could it be improved?

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  • Frequency of RAM

    - by Vignesh Palani
    I have a very old system hp compaq dx2080. It had 1gb of RAM. I recently bought a EVM DDR2 1 GB PC RAM which had a clock rate of 667Mhz. I have dual booting windows 7 and 8. When I installed it, windows 7 was still using the older 1gb. It showed as 2 gb available and 1gb usable in system properties. I searched around and found that I can change it to max in the msconfig. I did so. I set it 2048. Still, it was using only 1gb. When, I switched to 8, it was using the 2gb. Now, for my question: My system only supported 553Mhz and 667Mhz RAM. In the BIOS, I saw that the new RAM was showing as 800Mhz. Rechecked using speccy and cpu-z. It showed different values between the two. The RAM is labeled as 667Mhz over it. No mistake in that. But, am I missing something? Please help. And, can I continue using it? My point again. There are only two slots.

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  • Relative path incorrect in the view layer when hosting a rails3 app in a subdirectory using passenger and apache

    - by Saifis
    I want to host multiple Rails apps on a multiple server using sub-directories. And have encountered some relative path problems. I have made a symbolic link to the app's public directory and placed it in the /var/www/html directory, var/www/html/ /test_app (symbolic link to the public folder of test_app) and set apache as so LoadModule passenger_module /usr/local/lib/ruby/gems/1.9.1/gems/passenger-3.0.12/ext/apache2/mod_passenger.so PassengerRoot /usr/local/lib/ruby/gems/1.9.1/gems/passenger-3.0.12 PassengerRuby /usr/local/bin/ruby <VirtualHost *:80> ServerName test.com DocumentRoot /var/www/html Options Indexes FollowSymLinks -MultiViews RailsBaseURI /test_app </Location> </VirtualHost> The links in the app itself works just fine, all the links acknowledge the test_app/ directory and work, however, when it comes to showing images in the public directory in the view, the relative path goes wrong. Say I have /system/files/1/aaa.png it goes looking for it in /var/www/html/system/files/1/aaa.png rather than /var/www/html/test_app/system/files/1/aaa.png As far as I understand this is an Apache setting problem than something to be done in Rails, if its possible I would prefer to have it contained in the conf file of apache rather than having to alter the code.

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  • Transfer of ownership of Windows 7

    - by ziggy
    I am thinking of purchasing a copy of Windows 7 via either ebay or GumTree. I am unsure as to how the product key works. A close friend of mine is warning me against buying it from ebay as he is suggesting that once it has been used, the operating system registers itself on microsoft servers using the serial number of the motherboard of the system where it has been installed. This means once installed on one machine you wont be able to install it on another machine. Now i am struggling to believe that an operating system can only be installed on one machine. Can someone please explain exactly how this works. I can see a lot of copies being sold on Ebay which are used. I used the 'Ask a question' option and the majority of the users are saying that i should be able to use it. If someone buys Windows 7 from the shop, installs it on his PC but then decides that he wants to sell it can he not sell it? Will the person buying it not be able to use it? Does the person selling it have to somehow unregister it first? What do i need to look out for if buying it from Ebay? Thanks

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  • Fedora 19 no longer bootable

    - by Parisa
    I had fedora dual-booted with windows on my laptop for a while but with windows refresh grub was gone and my system directly booted windows. I booted fedora with my systems boot options and with this tutorial: https://fedoraproject.org/wiki/GRUB_2 I reinstalled grub2 but then had my system booted into an empty grub prompt: grub So I found the drive containing vmlinuz and initramfs (completely sure about thair location and versions) and tried to manually boot it but after the boot command it said: no suitable video mode found booting in blind mode and nothing happened. Such a tragedy... I have already tried to use live disks rescue system. Funny but troubleshooting options don't apear on my laptop while they do on my desktop pc. I cant even go to boot prompt on my lenovo idepad z400 laptop. I also tried EasyBCD so maybe I could boot it with windows but it comes up with this error: missing AutoNeoGrub().mbr Now I have removed the grub prompt (don't know why) and its really hard for me to reinstall my dearly customized fedora. If anyone knows a way to help boot it again or reinstall it keeping my files and installations I really need it. Thanks PS:I have already tried Boot-repair Disk but it asks me to enable the repo containing grub-efi on my fedora to reinstall the grub2 and fix the boot for me (how could i?).

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