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• Installing Windows 7 from a USB Hard Drive.

  - by Mark Tomlin

  I have a Western Digital Passport External Hard Drive (320GB) that I want to partition to keep the data on, but use some of the free space to install Windows 7 onto my desktop computer. Microsoft has given me the Windows 7 Enterprise Edition ISO to download. I would like to take the External HD and partition it so I can fit the ISO image onto it. How would I go about doing this? Trying to use GParted to partition the external hard drive has caused a chicken or the egg problem. GParted can't see the drive unless it's mounted, and when it is mounted it will not allow me to do anything to the partition. When it's not mounted, GParted can't see the drive at all and as such can't do anything to the drive. Once the drive is correctly partition, how do I go about moving the ISO image Microsoft gave me to my USB External Hard Drive? Are there any special steps that I need to take? I am using Ubuntu 11.04 & GParted 0.7.0, on my Chromebook to do this. Any support would be appreciated.

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• problem transferring Win 7 operating system hard drive to be used as external hard drive

  - by itserich

  Win 7 Asus MA479 8GB Ram hard drives are 500GB The operating system was a Caviar Green, and I tried to exchange it for a Caviar Blue. The Caviar Blue took the install correctly, but the Green, the prior operating system hard drive, will not allow itself to be used as an external hard drive. I use TrueCrypt and tried to format the Green and it freezes each time at the very end of the encyrption of the partition. I took the Blue out of the system and tried to encrypt it, and same problem. I think there must be something on the hard drive that shows it was a system drive and it causes a conflict. I have tried writing over the system hard drive to fully erase everything but that does not work, it still freezes. The drives will work in a different pc, i.e. other pc where it never was the system drive. The external hard drive is connected esata through Thermaltake. I have used TrueCrypt on various pc's for years including this Win7 with no problem. Thank you.

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• 750Gig Hard Drive shows full with only 315Gigs used

  - by Chris Kelly

  I have a Win7 laptop with a 750Gig C: drive. It came partitioned with 714Gig usable from manufacturer. I installed programs, music files, etc up to 285 gigs. As of a few weeks ago it showed 285 Gigs. Two weeks of house guests later and it shows HD is full. I deleted some files but it still shows 652 Gigs on this drive while there are only 285 Gigs on drive. Relevant details: I am Administrator on laptop and have fair knowledge of what I am doing. I did not restore from backup, restore from mirror, upgrade HD's or anything else that would have touched the partition structure. Just daily use as imaging machine and web. I have checked partitions under disk administrator - no change, still partitioned with 714Gigs usable. Have looked through computer C drive by hand showing Hidden files and folders - no change. I have used JDisk Report to double check - it shows I have only 285 Gigs on C drive. I triple checked with TreeSize run as Administrator and it also shows 285 Gigs on C drive - yet Windows 7 still shows almost full. I used Windows 7 Utilities to Check for Disk Errors, and Defragged the drive. No errors shown and no change after Defrag.

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• How can I limit CD drive speed while on the live CD to avoid drive noise?

  - by iugamarian

  I sometimes disconect my harddisks for the weeks while only using the internet and I use the Ubuntu Live CD. But every time it needs something while in live desktop it accelerates and makes a lot of noise, also the acceleration takes too long. I want lower drive speed than acceleration lags, because acceleration lags stop me completly exactly when I need something. How can I lower the CD drive speed, say to maximum 16x, without restarting? I can't restart because I only use the CD drive, no harddisks, no flash disks, no network disks. Edit: No USB drives. Setcd does not work for the live session.

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• How to automount usb drive reliably without fstab

  - by user103279

  Hi I need a way to mount a usb drive without using fstab. I Cannot use fstab because the drive is not connected to my computer at boot. This causes an issue during any one off reboots because start up hang waiting for this device until a keyboard intervention to skip it. I cannot use my current script with just does mount /dev/sde1 /media/Backup because sometimes it changes to sdf. Consider this a server install. I can't use tools at the user or GUI level. I suppose the sum of my question is how to manually mount a usb drive from the commandline considering the reliability of the /dev/sd value isn't consistent. Thanks,

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• eAccelerator Issue - Cache Directory Empty.

  - by Tom

  Hi all, Hoping someone can give me a hand with this. I've recently installated eAccelerator 0.9.6.1 - On a CentOS LAMP server. Had it working fine, using the /tmp/accelerator as the cache directory. php.ini set up: zend_extension="/usr/local/lib/php/extensions/no-debug-non-zts-20060613/eaccelerator.so" eaccelerator.shm_size="200" eaccelerator.cache_dir="/var/cache/eaccelerator" eaccelerator.enable="1" eaccelerator.optimizer="1" eaccelerator.check_mtime="1" eaccelerator.debug="0" eaccelerator.filter="" eaccelerator.shm_max="0" eaccelerator.shm_ttl="3600" eaccelerator.shm_prune_period="180" eaccelerator.shm_only="1" eaccelerator.compress="1" eaccelerator.compress_level="9" php -v output: PHP 5.2.12 (cli) (built: Feb 3 2010 00:34:28) Copyright (c) 1997-2009 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies with eAccelerator v0.9.6.1, Copyright (c) 2004-2010 eAccelerator, by eAccelerator with the ionCube PHP Loader v3.3.20, Copyright (c) 2002-2010, by ionCube Ltd. I had to remove the cache directory as I was testing something. Remade it, re-set permissions and found that eAccelerator was no longer creating cache files within the folder. I thought it might be down to ownership rights on the folder so chown'd it apache.apache and this made no difference. I recreated the directory in /var/cache instead and editted php.ini to point to the new cache dir location, chmod'd, chown'd etc. and still eAccelerator is not creating any of the cache files in the directory (just empty). Could someone suggest what I might be doing incorrectly here. I've read through numerous pages to try and troubleshoot the issue to no avail. Any help appreciated.

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• Cache Control Headers with IIS 7.5

  - by Brad

  I'm trying to wrap my head around client side (web browser) caching and how it works in relation to IIS 7.5 cache control headers. In particular: If we want to force clients to reload cached resources, how must IIS be configured? Do we need to set expire web content immediately if the resources on the server have a more recent Modified Date (or ETag value)? Right now we're not setting any cache headers. So if I set a cache header of no-cache (which I think is the equivalent of expire web content immediately) will that force the web browser to obtain a new version of a particular file. Or will the browser only request a new version after it deems its current copy to be stale and then from that point forward not cache it? Would a best practice be to set a cache control flag of 1 week, then 8 days before I know I am going to make a change set the cache control down to for instance 30 minutes? But if I do that and then need to immediately expire an item from users caches because there was an issue with it how do I do that?

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• What are the hard and fast rules for Cache Control?

  - by Metalshark

  Confession: sites I maintain have different rules for Cache Control mostly based on the default configuration of the server followed up with recommendations from the Page Speed & Y-Slow Firefox plug-ins and the Network Resources view in Google's Speed Tracer. Cache-Control is set to private/public depending on what they say to do, ETag's/Last-Modified headers are only tinkered with if Y-Slow suggests there is something wrong and Vary-Accept-Encoding seems necessary when manually gziping files for Amazon CloudFront. When reading through the material on the different options and what they do there seems to be conflicting information, rules for broken proxies and cargo cult configurations. Any of the official information provided by the analysis tools mentioned above is quite inaccessible as it deals with each topic individually instead of as a unified strategy (so there is no cross-referencing of techniques). For example, it seems to make no sense that the speed analysis tools rate a site with ETag's the same as a site without them if they are meant to help with caching. What are the hard and fast rules for a platform agnostic Cache Control strategy? EDIT: A link through Jeff Atwood's article explains Caching in superb depth. For the record though here are the hard and fast rules: If the file is Compressed using GZIP, etc - use "cache-control: private" as a proxy may return the compressed version to a client that does not support it (the browser cache will hold files marked this way though). Also remember to include a "Vary: Accept-Encoding" to say that it is compressible. Use Last-Modified in conjunction with ETag - belt and braces usage provides both validators, whilst ETag is based on file contents instead of modification time alone, using both covers all bases. NOTE: AOL's PageTest has a carte blanche approach against ETags for some reason. If you are using Apache on more than one server to host the same content then remove the implicitly declared inode from ETags by excluding it from the FileETag directive (i.e. "FileETag MTime Size") unless you are genuinely using the same live filesystem. Use "cache-control: public" wherever you can - this means that proxy servers (and the browser cache) will return your content even if the rest of the page needs HTTP authentication, etc.

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• backup hard drive image on external hard drive for Windows 7

  - by quarkX

  Hello, I am looking for a backup tool for Windows 7, that will allow me to backup my laptop’s hard drive on an external hard drive as an exact image. In a case of a problem with the main hard drive, I would like just to swap the drives and to continue to work using the backup hard drive. Thanks

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• Laptop Hard Drive Cable

  - by Josh Pennington

  I am about to have to dig into my wifes laptop to pull the hard drive out to pull the data off since the rest of it is close to dieing. I am curious what I should expect to have to deal with to get data off the hard drive. I am assuming its a SATA drive. Do I need a special cable to connect a laptop SATA hard drive to the computer or should I be able to connect it to my desktop computer without issue? Thanks Josh Pennington

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• Keeping new Ubuntu installation's /var on separate drive without formatting

  - by tlayton

  I have a server running an older version of Ubuntu and with /var stored on a separate partition on a separate hard drive. I am attempting to update Ubuntu to 10.04, but I still want to store /var on a separate partition and hard drive. However, I don't want to format the drive which currently contains /var, as it has important data. Is there some way to have 10.04 set up the new /var on this separate drive at installation, without formatting the drive and losing the old /var?

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• upgrading hard drive on toshiba satellite 5200 ....

  - by krul

  Hi, I have this beautiful & old laptop and would like to replace hard drive. I've purchased samsung 120GB hard drive and exchange hard drives. When I turn on computer my laptop doesn't recognize hard drive at all. It doesn't find nothing under master drive. What am I doing wrong, and is it possible to make this upgrade? Thanks

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• Hard disk with trustworthy SMART support

  - by Paggas

  Which hard disk drive do you suggest with trustworthy SMART diagnostics? That is, a hard disk that can truthfully report sector reallocations and other pre-failure indicators. I'm asking this because I have seen quite a few hard disks with SMART support fail with no warning in the SMART diagnostics, so a hard drive that can report such problems with some degree of reliability would be much appreciated :)

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• Bad Sectors on Hard Drive

  - by RHPT

  I run check disk pretty regularly on my hard drive, and lately it's been saying that I have some bad sectores (66, to be exact). I've run smartctl and HD Tune. Both tell me that I have bad sectors and the drive is in "pre-fail" stage. The drive is only a couple of years old. How worried should I be? My drive is a FUJITSU MHW2160BJ FFS G2

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• Install grub on 2nd hard drive

  - by jldupont

  I have 2 HDs in my machine: Drive 1 with grub and my Windows XP OS Drive 2 with only Ubuntu 9.04 I would like to be able to boot directly from drive 2. I am missing grub on drive 2... how do I add it? EDIT: I ended up reinstalling the whole OS.

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• Which is a better use of my SSD Drive [on hold]

  - by RS Conley

  I have the choice of setting up a system with two SSD Drives in Raid 1 mode as my boot drive for Windows 7 64-bit. With the Program Files and User Folders moved to a Second regular HD Drive also configured using Raid 1. Or Setup a single SSD Drive (120 GB or 256 gb) as a cache Drive using Intel Rapid Storage Technology combined with two normal hard drives configured as Raid 1. Which setup would have the faster hard drive performance over the life of the computer?

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• Raspberry Pi can't see external hard drive

  - by user265818

  My Raspberry Pi (Model B) can't see my external hard drive. It was working before without a problem, until I disconnected and reconnected the drive. It is a self-powered hard drive. When I put another image on a different SD card the Raspberry Pi can see the hard drive no problem, so there is some sort of configuration issue in the current image on the SD card. Any advice will be gratefully received.

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• format/build raid 5 with one 4k drive, three 512b

  - by skidawgz

  I have 4 WD 1TB drives which I want to 4x1TB Raid5. I am not sure what course of action to take next. How do I configure my 4th drive (sde) to align with the rest? Will this affect performance? I rcv this msg (which brings me here to ask these question): The device presents a logical sector size that is smaller than the physical sector size. Aligning to a physical sector (or optimal I/O) size boundary is recommended, or performance may be impacted. fdisk -l shows: Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 81 heads, 63 sectors/track, 382818 cylinders, total 1953525168 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: 0xf324ba09 Device Boot Start End Blocks Id System /dev/sdb1 2048 1953525167 976761560 fd Linux raid autodetect Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes 81 heads, 63 sectors/track, 382818 cylinders, total 1953525168 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: 0x38bcc1f0 Device Boot Start End Blocks Id System /dev/sdc1 2048 1953525167 976761560 fd Linux raid autodetect Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes 81 heads, 63 sectors/track, 382818 cylinders, total 1953525168 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: 0x570f77e7 Device Boot Start End Blocks Id System /dev/sdd1 2048 1953525167 976761560 fd Linux raid autodetect Disk /dev/sde: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0xeb665e7b Device Boot Start End Blocks Id System

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• Enabling Hibernate second-level cache with JPA on JBoss 4.2

  - by Peter Hilton

  What are the steps required to enable Hibernate's second-level cache, when using the Java Persistence API (annotated entities)? How do I check that it's working? I'm using JBoss 4.2.2.GA. From the Hibernate documentation, it seems that I need to enable the cache and specify a cache provider in persistence.xml, like: <property name="hibernate.cache.use_second_level_cache" value="true" /> <property name="hibernate.cache.provider_class" value="org.hibernate.cache.HashtableCacheProvider" /> What else is required? Do I need to add @Cache annotations to my JPA entities? How can I tell if the cache is working? I have tried accessing cache statistics after running a Query, but Statistics.getSecondLevelCacheStatistics returns null, perhaps because I don't know what 'region' name to use.

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• eAccelerator disk cache size

  - by Josh

  I am using eAccelerator to cache my PHP opcodes. I have the disk cache set to /var/cache/eAccelerator. How can I limit the size of the cache? It's already grown to 1.5 GiB and keeps growing!

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• With a typical USB hard drive enclosure, is the full range of drive power management functionality available?

  - by intuited

  In what may be an unrelated matter: is it possible to suspend a PC without unmounting an attached USB-powered drive, and then remounting it on resume? This is the behaviour I'm currently seeing (running Ubuntu linux 10.10). Are there certain models or brands that provide more complete control over this aspect of drive operation? My Friendly Neighbourhood Computer Store carries (part of) the Vantec Nexstar product line.

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• How do I format my entire HDD?

  - by Hjke123

  Ok I have recently made some mistakes with installing some operating systems that I should have just kept on a live cd not ubuntu but another os and with my ocd when I saw my lot's of different partitions I just wanted to reset my computer so it boot's up and doesn't load any os and I have to put in my ubuntu live cd and install that and that would be my only os on this computer so I want to know how I can just wipe my entire hard drive so when it boot's I get to put my live cd in and start anew?

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• Getting windows 7 to boot from external hard drive. Using Ubuntu

  - by SMS

  I have Ubuntu 12.04LTS as my current operating system, and I have a Windows 7 iso on a disk. I'm using an external hard drive because my internal hard drive has become damaged. I need to get Windows to install onto my external hard drive (where Ubuntu is as well). The iso disk will not install windows to the hard drive. Can anyone help guide me through the process of getting windows on the external?

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• How to install Google drive? [duplicate]

  - by Tamal Das

  This question already has an answer here: Is there a Google Drive client available? 9 answers How to install Google drive in Ubuntu 13.04? I am trying to find out an installation file from Internet (by using Google search). But, am not able to find out such installer.

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• Building asynchronous cache pattern with JSP

  - by merweirdo

  I have a JSP that will take some 8 minutes to render. The code logic itself can not be made more efficient (it will update often and be updated by basically a pointy haired boss). I tried wrapping it with a caching layer like <%@ taglib uri="/WEB-INF/classes/oscache.tld" prefix="oscache" %> <oscache:cache time="60"> <div class="pagecontent"> ..... my logic </div> </oscache:cache> This is nice until the 60 seconds is over. The next query after that blocks until the 8 minutes of rendering is done with again. I would need a way to build a pattern something like: If there is no version of the dynamic content in the cache run the actual logic (and populate the cache for subsequent requests) If there is a non-expired version of the dynamic content in the cache serve the output of the JSP logic from the cache If there is an expired version of the dynamic content in the cache serve the output of the JSP logic still from the cache AND run the JSP logic in the background so that the cache gets updated transparently to the user - avoiding the user have to wait for 8 minutes I found out that at least EHCache might be able to do some asynchronous cache updating but it did not sadly seem to apply to the JSP tags... Also I have to take in 10-20 parameters for the actual logic of the JSP and some of them should be used as a key for caching. Code example and/or pointers would be greatly appreciated. I do not frankly care if the solution provided is extremely ugly. I just want a simple 5 minute caching with asynchronous cache update taking into account some parameters as a key.

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