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• What are the best options for a root filesystem hosted on SSD under Linux

  - by stsquad

  I'm working on an embedded system which is going to be booting and hosting it's rootfs on an SSD disk. We are currently looking at using Intel X-18M SSDs. The file system structure will have a fairly static /usr section (modulo software upgrades) and an active /var and /var/log for maintaining state and logging. Given the wear-levelling done by the underlying flash does having separate partitions help or hinder? As modern SSDs appear as straight block devices and hide their mapping magic behind their firmware is there any point trying to optimise the choice of file-system that sits on-top of the SSD? Finally does enable SMART monitoring make any sense in this context or are their SSD specific ways of determining the underlying health of the storage hardware?

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• how to format external hd western digital when all ntfs boot sectors are unwritable

  - by FRATZESKOS

  I WANT TO FORMAT MY EXTERNAL HARD DRIVE WHICH IS A WESTERN DIGITAL 500GB, THROUGH CMD DOS COMMAND BUT IT FAILS BECAUSE ALL NTFS BOOT SECTORS ARE UNWRITABLE. HERE ARE THE COMMANDS I GAVE AND WHAT I GOT IN RETURN! C:\Users\Stefanos&FratzeskosFORMAT F: /Q The type of the file system is RAW. The new file system is NTFS. WARNING, ALL DATA ON NON-REMOVABLE DISK DRIVE F: WILL BE LOST! Proceed with Format (Y/N)? Y QuickFormatting 476269M Volume label (32 characters, ENTER for none)? Creating file system structures. The first NTFS boot sector is unwriteable. All NTFS boot sectors are unwriteable. Cannot continue. Format failed. IS THERE SOMETHING I CAN DO TO FORMAT MY DISC?

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• VirtualBox: Host OS processor is spiked while guest OS virtual processor is idle?

  - by Greg Mattes

  I'm running Windows XP 32-bit on Windows Vista 64-bit with VirtualBox 3.0.6. Whenever I run the XP VM, Vista (host) reports 100% cpu utilization even though XP (guest) reports between 1-5% cpu utilization. The host box has 2 GB of physical RAM. The guest/vm is configured with 512 MB. The host box has a 64-bit AMD processor. No apps (other than VirtualBox) are running on either host, they're just idling. Any guesses as to why the host processor is spiked? I've enabled various advanced features for the XP guest in the hopes of having better performance: Settings → System → Motherboard: Enable IO APIC Settings → System → Processor: Enable PAE/NX Settings → System → Acceleration: Enable VT-x/AMD-V and Enable Nesting Paging

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• Adding a virtual directory IIS 7.5 Windows 7 Ultimate x64

  - by Dave

  Trying to get my IIS 7.5 playing nice with VS 2008 on Windows 7 Ultimate 64-bit. I'm getting this error: System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. This happens when accessing a virtual directory outside C:\inetpub\wwwroot. I'd like to be able to create virtual directories outside the root if I can. I've added the NETWORK SERVICE to the folder hosting the virtual directory, still no luck. This folder is on my C: drive, not a share. TIA

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• Utilize different region format for a single application on Mac OS X

  - by Jeff Hellman

  Is there a way to have a single Mac OS X application utilize a different region format than the system default? For example, I'd like to keep my system operating in English with US date formats but have my lesson planning software utilize French date formats. If I put my entire computer into French mode, I get the desired results, but I'd rather keep my entire system in US mode and have the Planbook application work with French region formats. I know about Language Switcher but that only allow per-app selections of localizations to be used, not which date format to use. I don't care about having the French localization of Planbook appear, I just want the date format to be French.

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• Warning message in boot.ini

  - by MA1

  Hi everyone, I have a dual boot system with Windows XP Pro and Windows 7. Following are the contents of my system's boot.ini. ;Warning: Boot.ini is used on Windows XP and earlier operating systems. ;Warning: Use BCDEDIT.exe to modify Windows Vista boot options. ; [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS [operating systems] multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /NOEXECUTE=OPTIN /FASTDETECT I just want to know about first two warning lines, whether these two lines are always present in dual boot system when the boot process is different for installed operating systems, for example xp + vista/w7 or windows2000 + vista/w7 etc? Regards,

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• Windows 7 - Move location of Eventlog

  - by Jörg B.

  I am having a particular nasty problem of my main system drive 'disappearing' all of the sudden while the system is running. The vendor somewhat knows about this but has not managed to fix it completely over multiple fw iterations. Problems I have with the support is that I cannot provide any particular system log files/entries to further analyse what might have been going on because, well - windows cannot write to its 'lost' drive before bsod'ing. Is there any way to configure where Windows 7 stores its event logs so that I could specify a second physical hdd?

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• Window Servers 2003 Security After Support Lifecycle

  - by Daniel Fukuda

  Hello, I wanted to ask if let's say that Microsoft has stopped supporting Windows Server 2003 now so there is no any security updates and I use that system for Domain Controller (Windows XP/7 Professional Clients) and File Server only + I'm using ESET NOD23 AntiVirus. Will my system be secure? I'm asking because I don't surf internet on that system nor I will install/open any programs/documents and that server is connected to router without any open ports. "On July 14, 2015, all Windows 2003 support, including security updates and security-related hotfixes, will be terminated."

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• SNMPD - passing values in a trap

  - by ethrbunny

  Im trying to create an SNMP setup to monitor 500-1K machines. Each will be joined to the SNMPTRAPD server via a VPN. When the client system sends its messages, it's sending its internal address instead of the VPN address even though the 'trapsync' command is using the VPN. This will be a problem as many of these system will have DHCP addresses based on location so there will be overlap. What I'd like to figure out is how to pass extra values with the trap so I can identify which system a given trap comes from.

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• Distributed file systems

  - by Neeraj

  I need to implement a distributed storage system for a set of nodes(devices) connected in a mesh network. So what basically my design goals are: The storage system should be capable of handling dynamic entry and exit of nodes. Replication (for fault tolerance). For this i am thinking of using a Distributed file system. Every node could access data in the other nodes in a transparent manner. Are there some simple, easily pluggable opensource implementations? Thanks for your thoughts!

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• GTA 4 crashes while trying to run it

  - by Damian

  Hi! I got those two errors when I'm trying to run GTA4: Description: Critical runtime problem Problem signature: Event Name Problem: APPLICATION CRASH System RAM: -1 Available RAM: -532590592 Number of CPUs: 4 Video Card Manufacturer: NVIDIA Video Card Description: NVIDIA GeForce 9800 GT Video Card Driver Version: 8.17.0012.5919 Version system OS: 6.1.7600.2.0.0.256.1 ID settings Regional: 1045 And the second error: Problem signature: Event Name Problem: BEX Name Application: GTAIV.exe Version Application: 1.0.7.0 Timestamp Application: 4bd9efbe Module Name error: StackHash_fea7 Module Version with the error: 0.0.0.0 Timestamp module with error: 00000000 Exception Offset: 0000b513 Code exception: c0000005 Data exception: 00000008 System Version OS: 6.1.7600.2.0.0.256.1 ID settings Regional: 1045 Additional Information 1: fea7 Additional information 2: fea78afc140967119290cc27385e0510 Additional Information 3: 20ce Additional Information 4: 20ce3e492a2aa7e5b8cfe9b7b1f05b42 My PC spec: Proc: Intel i5 (4x2,66ghz) RAM: 8GB DDR3 1066mhz Graphics: ASUS EN9800GT/DI/1GD3 OS: WINDOWS 7 64-bit I think it should work well on my PC, I couldn't find the solution to get it working so I hope You can help me. P.S. Sorry for my English - I'm from Poland.

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• Access Monit on PHP

  - by xian

  i have a remote server (Centos 5.8) and i have installed monit on it as my monitoring tool. monit installation yum install monit now, on my local machine (still Centos5.8), i want to get the system status (shown below) of the said server provided by monit --------------------------------------------------- | Parameter | Value | --------------------------------------------------- | Name | serverHostname | | Status | Running | | Monitoring mode | active | | Monitoring status | Monitored | | Data collected | Fri, 22 Jun 2012 16:47:01 | | Load average | [0.32] [0.37] [0.43] | | CPU usage | 3.3%us 0.2%sy 0.0%wa | | Memory usage | 2005212 kB [53.9%] | | Swap usage | 893256 kB [21.8%] | --------------------------------------------------- This information is shown when you clicked on the system name link found on the your monit's home page http://localhost:2812 How can I do that in php? How can I retrieve those information? i was thinking of executing this linux command in php: /usr/bin/monit status Output of this is The Monit daemon 5.4 uptime: 2h 55m System 'system_asi454' status Running monitoring status Monitored load average [0.22] [0.34] [0.42] cpu 3.3%us 0.2%sy 0.0%wa memory usage 2005212 kB [53.9%] swap usage 892928 kB [21.8%] data collected Fri, 22 Jun 2012 16:47:01 which is similar to the table content show above.

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• Web deploy (msdeploy), syncing everything but sites and pools (but include siteDefaults)

  - by jishi

  Today I do the following to sync two webservers but skip all site configuration: msdeploy -verb:sync -source:webServer -dest:webServer,computerName=web25:8080 -skip:objectName=section,absolutePath=system.applicationHost/sites -skip:objectName=section,absolutePath=system.applicationHost/applicationPools However, this effectively also skip the siteDefaults, which I do like to sync (system.applicationHost/sites/siteDefaults) There doesn't seem to be a way to "include" a section, to override the skip directive. And there doesn't seem to be a way to sync only the siteDefaults section from applicationHost either, since source appHostConfig only seem to sync a specified site, and not siteDefaults. Maybe it is possible to "skip" using an Xpath expression or similar, to only skip the nodes, but include , but I find the documentation a bit confusing and my Xpath is rusty.

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• Mac Air Bootcamp Windows 7 Installation and USB3 Hurdles

  - by Casey

  I am trying to load windows 7 on a new Mac Air(OS X 10.9 Mavericks) using Boot camp, a downloaded windows 7 iso file, and USB3 flash drive. No obvious issues with stepping through the initial phases of boot camp and disc partition, but when the system reboots to load windows setup/install from the USB3 flash, it stalls after a few screens and gives a "missing cd/dvd drive" error. I have read similar posts regarding this fail that imply there is possibly a windows 7 compatibility concern with USB3, and that if a USB2 port is available....or if you can change your BIOS to make your USB3 look like USB2...then you can get around this error. Unfortunately I only have USB3 ports on this system, and it appears accessing the PC equivalent "BIOS" on the new Macs is very difficult....and if you screw it up you can ruin the system. Does anyone have any suggestions? I should also mention that there is NOT a CD/DVD drive on the Mac Air....and I can't migrate to Windows8 (for various reasons). Any help is much appreciated!!

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• Could my 64-bit server be somehow identifying itself as a 32-bit server?

  - by Deane

  Has anyone ever heard of a 64-bit OS identifying itself as a 32-bit OS? We have a Windows Server 2008 R2 x64 development server. We've been trying to activate it with a product key from MSDN, but it keeps telling us the the key is invalid. I've opened a ticket with MSDN for this. Then something odd happened -- I tried to install a 64-bit version of SQL Server 2005. After it extracted, we got this message: This version of hotfix.exe is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program... Now, we're pretty sure this is a 64-bit OS. Computer Properties says: System Type: 64-bit Operating System Also, we have both a "Program Files" and a "Program Files (x64)" directory. I don't know how the product key activator or the SQL install program attempts to divine the type of OS, but could it be...wrong?

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• Setting execute permission on a Fedora 11 (host and guest) shared folder file is not working for me.

  - by pmr

  I have set up a VirtualBox Fedora 11 (i386) guest on my Fedora 11 (x86_64) host system with shared folders enabled. I mount the shared folder successfully with the recommended "mount -t vboxsf share /shareddir -o rw,exec,uid=500,gid=100" command. I can successfully read and write files in the share from the guest but I cannot set the execute bit on any file in the share from the guest system. Nothing in GoogleSpace seems to address my issue let alone provide a solution. fwiw, selinux is disabled on both the guest and host and the shared folder is an ext4 file system.

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• Re-assembling the RAID-5 array reboots my CentOS-5 machine

  - by xraminx

  I have 3 HDD's, each divided into 3 partitions. I had created a RAID-1 for boot partition md0 created from sda0, sdb0 and had also created two RAID-5 arrays: md1 created from sda1, sdb1, sdc1 md2 created from sda2, sdb2, sdc2 It used to work fine but one day I had to power off the machine (cold reboot) to get any response from the machine. After that, when the system started booting, it tried for a while to reconstruct the RAID arrays but after a few minutes it crashed silently. I booted the system in linux rescue mode from the DVD and tried to re-assemble the RAID devices manually. I was able to re-assemble md0 and md1 using: mdadm --assemble --scan /dev/md0 mdadm --assemble --scan /dev/md1 But when I try to re-assemble md2 using: mdadm --assemble --scan /dev/md2 the system reboots silently again. How can I fix this problem?

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• How Can I Disable CRL Checks For A Windows 2008 App Using WinHTTP?

  - by Mike B

  I've got a Windows 2008 server with an app that uses WinHTTP for SSL sessions. The server is isolated from the internet but still tries to connect to CRL distribution points, which leads to some timeouts. Since the server has no access to the internet whatsoever, I'd like to disable CRL checks. I had a similar issue on a Windows 2003 server and resolved it by adjusting the following registry keys: HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Http/Parameters/SslBindiongInfo/0.0.0.0:443/DefaultSslCertCheckMode (DWORD=1) HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Rasman/PPP/EAP/13/NoRevocationCheck (DWORD = 1) HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Rasman/PPP/EAP/13/NoRootRevocationCheck (DWORD = 1) That doesn't seem to be working in 2008. I've also tried disabling the CRL check from IE under Tools Internet Options Advanced. Is there anything else I can try here?

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• BIOS password and hardware clock problems

  - by Slartibartfast

  I have HP 6730b lap top. I've bought it used and installed (Gentoo) linux on it. BIOS is protected with password, and guy I bought it from said "I've tweaked BIOS from Windows program, it never asked me for password". I've tried to erase password by removing battery, but it's still there. What did get erased obviously is hw clock. This is what hapends: a) I can leave lap top in January 1980 and it works b) I can correct system time, but boot wil fail with "superblock mount time in future" from where I need to manually do fsck and continue boot c) I can correct system time and sync it with hwclock -w but than it will behave as b) and it will reset BIOS time to 1.1.1980 00:00 So I need either a way to bypass a BIOS password (wich after lot of googling seems impossible),a way to persist a clock, or a setup that will enable hw clock in eighties, system clock in present time and normal boot.

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• Windows XP waits for usb drive on almost every operation.

  - by Tomasz Kowalczyk

  Hello everyone, I have a problem with my Windows XP operating system, particularly with the USB device that is plugged in - 1TB WD My Book external drive. I haven't found any information about such behaviour when searching in Internet, so I have to ask You. The problem is: when I am using computer, especially during work (programming), when I try to access any information on a hard disk ("internal" one), Windows seems to "consult" it with the external drive. For example, when I open file selection dialog window, if I try to change directory, system activates external drive, reads something (I hear the disk's operational noise) and after some seconds of such pause it makes the operations I requested. There are many situations in which I can reproduce this behavior - opening My Computer, shutting down system, opening partition folder from My Computer - every operation involves the usage of external drive. Please understand me properly - this is not something that happens EVERY time, but at least "many" times a day. What causes such behavior and how can I "turn off" external drive when it's not needed? Thanks in advance for your answers.

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• How do I setup a systemd service to be started by a non root user as a user daemon?

  - by Hans

  I just finished the install and setup process of systemd on my arch-linux system (2012.09.07). I uninstalled initscripts (and removed the configuration files). What I want to do is create a service that can be started and stopped by a non-root user. The service is to start a detached screen session running rtorrent. However I want every user on the system who has set this service to start (enabled) to have a particular instance started for them specifically. How would one go about doing this? I remember reading that systemd supports user instances of services, however I have been unable to find any information on how to set this up, or whether it relates to what I am looking for. Service file that I have used for system: [Unit] Description=rTorrent [Service] Type=forking ExecStart=/usr/bin/screen -d -m -S rtorrent /usr/bin/rtorrent ExecStop=/usr/bin/killall -w -s 2 /usr/bin/rtorrent

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• Deleting large no of files on linux eats up CPU

  - by Sanjay

  I generate more than 50GB of cache files on my RHEL server (and typical file size is 200kb so no of files is huge). When I try to delete these files it takes 8-10 hours. However, the bigger issue is that the system load goes to critical for these 8-10 hours. Is there anyway where I can keep the system load under control during the deletion. I tried using nice -n19 rm -rf * but that doesn't help in system load. P.S. I asked the same question on superuser.com but didn't get a good enough answer so trying here.

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• Understanding the Linux boot process, subsystem initialization, & udev rules?

  - by quack quixote

  I'm creating UDEV rules for automounting external drives on a headless server, much in the same way as Gnome-VFS does automounting during a user session. I'm concerned with the rule's behavior at boot-time. There's a good chance one of these drives will be connected during a boot, and I'd prefer any connected drives get mounted in the right place. The drives might be either USB or Firewire, and they are mounted from a shell script fired off by UDEV on detecting an "add". Here are my questions: When UDEV runs the mount for these devices at boot, will the system be ready to mount it? Or will the script get triggered too early? If it's too early, what's a good way for a script to tell that the system isn't ready yet (so sleep a while before checking again)? The UDEV rule matches ACTION=="add". Does this event even fire at system boot?

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• How can I shrink the Address toolbar in the Task Bar?

  - by Iszi

  I like being able to run commands straight from my Task Bar. So, I've enabled the Address toolbar on my new Windows 7 system - just like I had on my old XP system. However, the bar seems to have a mandatory minimum length that's a bit longer than I'd prefer. It's about twice as long, if memory serves, as the minimum size allowed in XP. Is there any way I can adjust this minimum length, through a Registry key or some other means? (Note: I've also got a related question, about removing the Refresh button at the end of the bar.) EDIT: For clarity, I'm adding a screenshot. The toolbar I want to shorten is the one circled below, with an empty text-entry field that has a drop-down and "Refresh" button. I currently have it positioned between a Quick Launch toolbar and the Taskbar. On the far side of the Taskbar, before the System Tray, is a Desktop toolbar.

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• Ubuntu Kernel Panic on Inserting Network Cable

  - by Skizz

  I've been having a recurring kernel panic with my Ubuntu 9.04 installation (see other posts by me). Today, I was fiddling around trying to get some cable attached when the system panicked. Looking at the layout, the only cable in the vicinity was the network cable. Upon further investigation, it seems that the system reliably panics whenever I insert a network cable. Removing the cable does not cause the panic. How do I stop the system panicking when I insert the network cable? If more information is needed, please add comments/answers and I'll post the required data.

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