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• What are "Missing thread recordng" erros when running fsck -fy ?

  - by Horace Ho

  There is some error reported when I run Disk Utility and verify the root volume on my OS X MacBook. So I boot and CMD-S into the shell mode and run /sbin/fsck -fy. Errors are like: ** Checking catalog file. Missing thread record (id = ...) In correct number of thread records ** Checking catalog hierarchy. Invalid volume file count (It should be ... instead of ...) ** Repairing Volume Missing directory record (id = ...) I'd like to know what is the cause of the above errors? Hopefully I will be more careful in the future to prevent them from happening again. p.s. I am using a SSD and so I assume mechanical hard disk error is less likely. Thanks!

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• What are "Missing thread recordng" erros when running fsck -fy ?

  - by user32616

  There is some error reported when I run Disk Utility and verify the root volume on my OS X MacBook. So I boot and CMD-S into the shell mode and run /sbin/fsck -fy. Errors are like: ** Checking catalog file. Missing thread record (id = ...) In correct number of thread records ** Checking catalog hierarchy. Invalid volume file count (It should be ... instead of ...) ** Repairing Volume Missing directory record (id = ...) I'd like to know what is the cause of the above errors? Hopefully I will be more careful in the future to prevent them from happening again. p.s. I am using a SSD and so I assume mechanical hard disk error is less likely. Thanks!

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• Alternative to Windows Home Server (WHS) backups

  - by Adam Tegen

  Since Microsoft announced the end of life for WHS, are there any alternatives? Specifically, I am interested in recovering from a catastrophic disk failure with WHS. For example, this is my ideal scenario when a desktop hard-drive fails (has a bad virus, etc): Install a disk of the same size or greater Boot the desktop with the Recovery Disc Point the recovery application at the WHS Pick the machine, the drive(s) and the date of the backup Have a couple beers Reboot to a working machine as if nothing happened. I would need to slap multiple disks in the machine without raid. It sounds like LVM will work here. It would be nice, but not required to have de-duplication of files when multiple machines are backed up. (Single Instance Storage)

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• dual boot preinstalled windows 8 laptop with windows 7

  - by sarathi

  I am having a hard disk in gpt partition style and Windows 8 is pre-installed in uefi mode. While trying to dual boot using usb bootable disk(using rufus,gpt partition style,fat32),it displays "Windows is loading files", then while displaying "Starting Windows" it hangs. So, I tried to install it inside Windows using setup.exe. Everything was running fine, but when it gets self restarted again, it got stuck at "Starting Windows". When restarted in Windows 8, it showed a htm file stating that "Windows cannot be installed on a computer using battery power. If the battery runs out of power during the installation, you might lose data. To continue the installation, plug in the computer's power adapter." I am sure that power adapter is connected. I Googled a lot on this, but I didn't get solution.

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• Can SATA be used to connect computers?

  - by André

  Can SATA be used to connect two computers together, just like a crossover Ethernet cable would do ? I know SATA has no "networking" features and even though a controller may have multiple ports, the drives don't "see" each other, and that in SATA one device acts as the host (the computer) and the other device is some kind of "client" (the storage drive). But still, did anyone attempt to make a kernel module that would make one computer appear as a "client" (so that the host's SATA controller detects it as a standard hard drive) and then set up like a pseudo-Ethernet link or a very high speed serial link (and then run pppd on it and do networking) ? Note : I know this is an unprofessional and totally stupid idea, I'm just asking out of curiosity.

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• Windows Vista stuck on crcdisk.sys

  - by hristo

  Hello everyone, I'm here with some Vista-trouble. After a cigarette-break I returned to my desk to find my PC with a black screen, and after failing to wake it up did a forced restart. I haven't been installing any hardware or software for quite a while. Ever since, Vista gets stuck on the animated 'Microsoft Corporation' progress bar with the animation still running and no hard disk activity. With an F8 and safe-mode + prompt I saw that the boot gets stuck at crcdisk.sys. I'm running Vista64 SP1. What could the problem be? Any advice?

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• Asus AT3-IONT & Win XP [closed]

  - by user59178

  Hello! I'm trying to install Windows XP on my nettop (Asus AT3-IONT motherboard). There is a problem - when the progress comes to partition selection, it sees all the partitions on the hard drive, but when I'm selecting any partition, it says that it's not compatible with Windows XP. Windows 7 was installed without any problems, but XP and 2003 R2 have this problem. How can I solve it? P.S. I already have Windows 7, I need exactly XP or 2003 for my work. Thanks.

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• How to select part of a text that exists already in an above cell

  - by pragadheesh

  Hi, In MS Excel, consider i have the word 'Microsoft' in a cell. And in the cell below I want to type the word 'Microhard'. When I start typing Microhard, the word Microsoft appears shaded in black. Now how can I select the part 'Micro' alone from Microsoft and type 'hard' alone. Hope my question is clear. Same question I thought the question should belong to SuperUser so posting it here. Ignore if duplicate.

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• Help creating image from LVM

  - by jackhab

  I need to duplicate CentOS hard drive image for multiple stations. The HD has the following layout: Disk /dev/sdb: 250GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 32.3kB 107MB 107MB primary ext3 boot 2 107MB 250GB 250GB primary lvm I saved /dev/sdb1 to file with fsarchiver but for sdb2 I get: /fsarchiver savefs an2.fsa /dev/sdb2 oper_save.c#1006,filesystem_mount_partition(): can't detect and mount filesystem of partition [/dev/sdb2], cannot continue. removed an2.fsa Although fsarchiver probe simple correctly detects sdb2 as LVM2_member. Is fsarchiver correct tool for this job? What's wrong? I'm on Ubuntu 9.1 with fsarchiver 0.6.8 and lvm tools installed. Thanks.

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• "custom" routers for VPN - useful or waste of money?

  - by Andrew Heath

  I use VPN in China and my current service contract expires soon so I was checking what sort of plans are out there now. I found that Witopia offers a "Cloak Box", what appears to be a Linksys wireless router with allegedly hacked/custom firmware to support VPN. Aside from allowing multiple computers to share one VPN connection, is there anything else at work here to justify that price when most new routers are $100 or less these days? Or is this something targeted towards the cd-rom cupholder crowd? And yes, I've contacted them, but haven't heard back yet... EDIT I've heard back from the company - here are the details if anyone else is interested: the router is a Linksys WRT54GL running TomatoVPN custom firmware the hardware waranty is one (1) year, from Linksys/Cisco the VPN is hard-set, so any device connected to the router MUST use the VPN (Witopia blocks torrents) I've decided it's not for me, but hopefully this information will prove useful to others.

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• Getting NFS clients to retry mount if NFS server down when client boots

  - by z0mbix

  I have an NFS server that several clients mount. I am using the following in my /etc/exports on the server: /content *(rw,no_root_squash) and on the clients in my /etc/fstab I have: content.prd.domain.tld:/content /content nfs rw,hard,intr 0 0 If the clients boot while the NFS server is down, the share does not get mounted. I read in the NFS man page that the retry defaults should handle this: retry=n The number of minutes to retry an NFS mount operation in the foreground or background before giving up. The default value for forground mounts is 2 minutes. The default value for background mounts is 10000 minutes, which is roughly one week. I have tested this, but it doesn't appear to work. Am I missing something? All servers are RHEL 5.4. Cheers z0mbix

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• Help creating image from LVM

  - by jackhab

  I need to duplicate CentOS hard drive image for multiple stations. The HD has the following layout: Disk /dev/sdb: 250GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 32.3kB 107MB 107MB primary ext3 boot 2 107MB 250GB 250GB primary lvm I saved /dev/sdb1 to file with fsarchiver but for sdb2 I get: /fsarchiver savefs an2.fsa /dev/sdb2 oper_save.c#1006,filesystem_mount_partition(): can't detect and mount filesystem of partition [/dev/sdb2], cannot continue. removed an2.fsa Although fsarchiver probe simple correctly detects sdb2 as LVM2_member. Is fsarchiver correct tool for this job? What's wrong? I'm on Ubuntu 9.1 with fsarchiver 0.6.8 and lvm tools installed. Thanks.

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• Trouble upgrading OS X, because HD doesn't use GUID Partition Table Scheme

  - by Erik Vold

  So I have a MacBook with Mac OS X 10.5 and I'm trying to upgrade to 10.6, but when I run the upgrade 'install' I quickly get to a page where I am supposed to 'Select the disk where you want to install Mac OS X' and there is only the one hard drive, so it is auto selected, and below that I see a warning message and the only button available is the 'Go Back' button. The warning message says: "Macintosh HD" can't be used because it doesn't use the GUID Partition Table scheme. Use Disk Utility to change the partition scheme. Select the disk, choose the Partition tab, select the Volume Scheme and then click Options. So I followed the above instructions, and I got to the last step, where I'm supposed to click the 'Options' button, the problem is that I cannot click that button, it is disabled.. So what am I supposed to do?

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• Why does the Java VM process eat up more RAM then specified in -Xmx parameter?

  - by evilpenguin

  I have multiple servers running CentOS 5.4 and only one application running on Java VM. I've configured the Java VM with the following arguments: java -Xmx4500M -server -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:NewSize=1024m -Djava.net.preferIPv4Stack=true -Dcom.sun.management.jmxremote=true The machines I'm running the VM on has 6 GB RAM and no other applications running. After a while, the java process starts to hit the swap space really hard, I get this info out of the top command: 7658 root 25 0 11.7g 3.9g 4796 S 39.4 67.3 543:54.17 java On the other hand, if I connect via JConsole, it reports the Java VM has 2.6 GB used, 4.6 GB commited and 4.6 Gb max. java -version returns: java version "1.6.0_17" Java(TM) SE Runtime Environment (build 1.6.0_17-b04) Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode) Why is the Java VM expanding so much past it's allocated heap size? And where does that memory go, if it's not reported in JConsole?

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• Xpath automatization software

  - by holms

  Too sad this topic was closed. But I'm kind of a having the same question. I want to construct xpathes, for common html block which appears on page. For example: you can give two URLs to that software, which will contain SAME html blocks (divs) , but having different content in it. by giving 2 stackoverflow.com url's, software could detect that same div#id is being used once again, and just give XPATH'es of those html blocks like for example. Of course I can find xpath'es my self, as far as I remember, firebug makes it easy,shows xpath of every html block, but this is kind of hard procedure if you want to get xpath'es for LOTS of html elements. so that's why I want this kind of software to help in this routine.

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• How to limit disk performance?

  - by DrakeES

  I am load-testing a web application and studying the impact of some config tweaks (related to disk i/o) on the overall app performance, i.e. the amount of users that can be handled simultaneously. But the problem is that I hit 100% CPU before I can see any effect of the disk-related config settings. I am therefore wondering if there is a way I could deliberately limit the disk performance so that it becomes the bottleneck and the tweaks I am trying to play with actually start impacting performance. Should I just make the hard disk busy with something else? What would serve the best for this purpose? More details (probably irrelevant, but anyway): PHP/Magento/Apache, studying the impact of apc.stat. Setting it to 0 makes APC not checking PHP scripts for modification which should increase performance where disk is the bottleneck. Using JMeter for benchmarking.

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• What are some good Server Name Themes/Categories [duplicate]

  - by Arian

  This question already has an answer here: What are the most manageable and interesting server naming schemes being used? [closed] 17 answers I need to create a naming scheme for my servers, but I am having a hard time come by a good category list to go by. I want something with an abundance of names to use, so as I scale my server count I won't run out. Some that I have heard being used is greek philosophers (plato) planet names (saturn, mercury, venus, mars) Mario Characters (mario, luigi, yoshi, toad) I feel like the above categories are kind of limited. What are some good naming scheme that you use?

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• Home server - HP Proliant Microserver - Software and setup - OS on USB stick?

  - by Lloyd Watkin

  I've just purchased a HP ProLiant Microserver for home use. I want to set up with web server, samba shares, the usual stuff. My question is really about system setup. It has an internal USB socket so I've attempted to install a copy of Fedora 14 onto it. I turned off X/Gnome, but it still ran like a pig. I've now put the OS on one of the internal disks (250Gb, 7200rpm), but I was wondering if there was a way to utilise the internal USB to give me better power-saving allowing the hard drives to be shut down when not in use. How would you set this server up? I'd rather not go to the extra cost of an SSD right now, but if that's the best way then so be it.

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• BootMgr is missing, usual fixes don't work

  - by parsley72

  I know this question has been asked before but I've tried all the usual fixes and nothing works. Basically the hard drive had two partitions with Vista and Windows 7. I've deleted the Vista partition to make more room and expanded the Windows 7 partition to fill the drive (using GParted). I've tried: Running Startup Repair - it doesn't find any problems. Setting partition to Active - worked. bootsect /nt60 c: - worked. BootRec /FixMbr - worked. BootRec /FixBoot - worked. BootRec /ScanOs - I get the message "Total identified Windows installations: 0" BootRec /RebuildBcd - I get the message "Total identified Windows installations: 0" BcdEdit shows a Windows Boot Manager and a Windows Boot Loader, both on C: partition. What else can I try?

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• Aperture and networked drive: thinks images are offline

  - by AK

  I keep my photos on a networked drive (wireless), and they are referenced by Aperture. Aperture seems to not try very hard to look for this drive. Usually I have to open the network drive in Finder before opening Aperture -- otherwise it doesn't find the images and considers them offline. To me this seems like Aperture isn't willing to look on the network for the drive, unless it was helped along by pointing it out in Finder. It doesn't work if I start Aperture first and then navigate to the drive in Finder. What are some workarounds to making this functional? Is there a way to tell Aperture to look again without restarting the program?

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• Does SpinRite do what it claims to do?

  - by romandas

  I don't have any real (i.e. professional) experience with Steve Gibson's SpinRite so I'd like to put this to the SF community. Does SpinRite actually do what it claims? Is it a good product to use? With a proper backup solution and RAID fault tolerance, I've never found need for it, but I'm curious. There seems to be some conflicting messages regarding it, and no hard data to be found either way. On one hand, I've heard many home users claim it helped them, but I've heard home users say a lot of things -- most of the time they don't have the knowledge or experience to accurately describe what really happened. On the other hand, Steve's own description and documentation don't give me a warm fuzzy about it either. So what is the truth of the matter? Would you use it?

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• server 2008 sp2 hung not responding with kvm reset as well

  - by dasko

  using server 2008 sp2 64bit os standard edition with all updates from ms site. server was hung this morning, resetting kvm did nothing, plugging in another usb mouse on the back did not let the mouse light up red on it's optic end. other machines on the kvm worked fine including the mouse. server is rack mounted 4u supermicro systems or superserver. had to hard power off and restart. any thoughts? i burnt this system in well for a couple of weeks before deploying so it is kind of odd that this happened. any help is greatly appreciated, or if anyone can suggest software to install that can maybe send out the email when something like that goes down. i looked for the minidump but nothing. nothing in the event viewers either. gd

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• Advantage of using a smartfox server

  - by Fahim Akhter

  Hi, we are trying to outsource the server side of our game applicaton to someone. They recommend using http://www.smartfoxserver.com/ instead of our traditional php/mysql combination. Our game is in actionscript and will be using social aspects of facebook later on. Smartfoxserver is supposed to reduce the time of development. The thing I'm having a hard time getting right now is how? How does it reduce the time. We will still be making a RDMS writing stored procedures and game logic based server scripts. Where does smartfox come into play? Thanks, Fahim.

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• Are these components compatible and are there any significant bottlenecks?

  - by Tom Gullen

  I'm trying to buy a new pc, for software dev and a bit of gaming. I already have a 500gb HDD , and a PCI sound card I want to use as well. Is all this stuff compatible, and will it all work together and are there any significant bottlenecks? Case, Mobo and PSU "Primo Motion" AMD 880G DDR3 Ready Barebones (Socket AM3) http://www.overclockers.co.uk/showproduct.php?prodid=FS-268-OK&groupid=43&catid=1817&subcat= SSD 64GB Crucial RealSSD C300 64GB 2.5" SATA 6Gb/s Solid State Hard Drive http://www.overclockers.co.uk/showproduct.php?prodid=HD-007-CR&groupid=1657&catid=1660&subcat=1668 CPU AMD Phenom II X6 Six Core 1090T Black Edition 3.20GHz (Socket AM3) http://www.overclockers.co.uk/showproduct.php?prodid=CP-266-AM&groupid=701&catid=6&subcat=1944 RAM 8GB Corsair Vengeance 8GB (2x4GB) DDR3 PC3-15000C9 1866MHz Dual Channel Kit http://www.overclockers.co.uk/showproduct.php?prodid=MY-292-CS&groupid=701&catid=8&subcat=1387 Graphics XFX ATI Radeon HD 5770 1024MB GDDR5 PCI-Express Graphics Card http://www.overclockers.co.uk/showproduct.php?prodid=GX-149-XF

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• insert system disk error after switchting SATA cables

  - by Matthias

  I have 5 hard disks built in my computer, two connected by IDE cables, three by SATA. Today I had to return two of the SATA cables to my room mate. So I grabbed another one I had floating around and connected the remaining disk by unplugging my DVD R/W. Now I receive the 'insert system disk and press enter' error after booting. Disks and cables seem to be fine, since all the disks are recognized in the BIOS. Also, I can mount the disks using a live CD w/o problems. I also tried different orderings of the cables (i.e. plugging the disks in different plugs on the mainboard), I'm not sure if that even matters using SATA. Any Ideas what might be the problem here? The OS installed are Windows 7 and Ubuntu 10, the bootloader installed is GRUB. PS: No RAID involved, JBOD.

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