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• How to provide users with isolated drive letters in Windows 2008 R2 (Terminal Server) [migrated]

  - by Pierre

  I need to be able to host several RDP sessions on a Terminal Server, where users of group A see a drive X: mapped to a given folder of the server and another group B see the same drive letter X: mapped to another folder. For instance : User 1, Group A X: --> C:\data\A User 2, Group A X: --> C:\data\A User 3, Group B X: --> C:\data\B User 4, Group C X: --> C:\data\C Is this possible. If so, how do I configure the virtual drive mapping so that the user has nothing special to do; i.e. I want the letter X: to be available to Remote Apps launched by the user, or if the user logs in to the remote desktop. Can I somehow use subst to get this to work? I would like to avoid, if possible, mounting drive letters on local shares (i.e. I don't like the idea of having to go through \\localhost\data-A to reach the user's data).

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• problem of setting cache as datatable and reading it

  - by MyHeadHurts

  and this is how i see if my cache is empty all my syntax errors are coming when i am trying to see if the cache is null and if it is to run the stored procedure If RadioButtonList1.SelectedIndex = 0 Then If Cache["netcache"] = null Then bcmd.CommandText = "yearlynetsales" Else btable = cache["netcache"] end if If RadioButtonList1.SelectedIndex = 1 Then If Cache["salescache"] = null Then bcmd.CommandText = "yearlysales" Else btable = cache["salescache"] end if end if this is how i set my cache If RadioButtonList1.SelectedIndex = 0 Then Cache.Insert("netcache", bTable) ElseIf RadioButtonList1.SelectedIndex = 1 Then Cache.Insert("salescache", bTable) ElseIf RadioButtonList1.SelectedIndex = 2 Then Cache.Insert("cxsalescache", bTable) ElseIf RadioButtonList1.SelectedIndex = 3 Then Cache.Insert("cxvaluecache", bTable) ElseIf RadioButtonList1.SelectedIndex = 4 Then Cache.Insert("othersalescache", bTable) ElseIf RadioButtonList1.SelectedIndex = 5 Then Cache.Insert("inssalescache", bTable) End If

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• mounting external hard drive EXT4: "the unlocked device does not have a reckognizable filesystem on it"?

  - by user824924

  I'm having problems mounting ext4 partitions(inside a LUKS partition) in external drives. The drives are fine, there is no problem whatsoever with the drives and no filesystem corruption. This happened since a recent automatic system upgrade, and a manual upgrade to kernel 3.12.0. It goes like this: I plug in the external drive Passphrase is asked for luks device luks partition correctly unlocked/opened Instead of proceding with mounting the now exposed ext4 partition there's a pop-up saying: "the unlocked device does not have a recognizable filesystem on it". Same happens in this case: $ gvfs-mount -d /dev/sdc2 Enter a passphrase to unlock the volume The passphrase is needed to access encrypted data on WDC WD250... (250 GB Hard Disk). Password: Error mounting /dev/sdc2: The unlocked device does not have a recognizable file system on it Doing a manual sudo mount /dev/dm-1 /mnt/testfolder works with no errors and there is no problem with the filesystem (fscked). Also there doesn’t seem to be anything useful written to dmesg when this happens. What gives?

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• I don't have permission to access other drives

  - by mcjohnalds45

  After messing with the user accounts & names, I found I can't access my external drives without using sudo. So when I access one normally with cd "/media/john/FreeAgent Drive" I receive bash: cd: /media/john/FreeAgent Drive: Permission denied However, using sudo: sudo cd /media/john sudo ls -l It gives: drwx------ 1 john john 20480 Sep 24 10:45 FreeAgent Drive/ And id returns uid=1003(john) gid=1003(john) groups=1003(john), ... So I'm interpreting this is as "you are john, only john can access this drive, however, you cannot access this drive." I have tried sudo chown john:john "FreeAgent Drive" and sudo chmod o+rw "john/FreeAgent Drive"but I still can't access it.

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• Booting but not rebooting from external USB hard drive, what could be the problem?

  - by user8276

  I have a Dell Inspiron 6400 laptop with a dead internal hard drive controller. It boots perfectly from CD or USB. I therefore removed the internal hard drive and installed Ubuntu 10.10 Maverick onto an external USB hard drive. It boots and runs perfectly when doing a "cold start" of the PC. However, when I choose restart/reboot in the Ubuntu menu (e.g. after an update), I get this error message from the BIOS: "No bootable devices, strike f1 to retry boot, f2 for setup utility, press f5 to run onboard diagnostics". I can make the system boot again by pressing f2 or f5 and exiting the utility without having done anything. Or, I can simply power off the system and do a new "cold start". Does anyone know the likely reason for this problem and how to fix it. It is not a big issue but an annoyance that I would like to fix if possible.

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• Ubuntu 10.10 booting but not rebooting from external USB hard drive, what could be the problem?

  - by user8276

  I have a Dell Inspiron 6400 laptop with a dead internal hard drive controller. It boots perfectly from CD or USB. I therefore removed the internal hard drive and installed Ubuntu 10.10 Maverick onto an external USB hard drive. It boots and runs perfectly when doing a "cold start" of the PC. However, when I choose restart/reboot in the Ubuntu menu (e.g. after an update), I get this error message from the BIOS: "No bootable devices, strike f1 to retry boot, f2 for setup utility, press f5 to run onboard diagnostics". I can make the system boot again by pressing f2 or f5 and exiting the utility without having done anything. Or, I can simply power off the system and do a new "cold start". Does anyone know the likely reason for this problem and how to fix it. It is not a big issue but an annoyance that I would like to fix if possible.

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• Where are my Hard Drives/Local Disks on the COMPUTER/System Folder in Ubuntu 12.04?

  - by Russel

  Being first to try Ubuntu. But Where are my Hard Drives/Local Disks on the COMPUTER/System Folder in Ubuntu 12.04?! Before installing 12.04 i had tried the Ubuntu 10.10 Version Live and it was perfect in showing my Local Disks. But it couldn't recognize my GTX 470 Graphics driver so i thought of trying the recent version i.e 12.04. Fortunately it solved the Graphics driver thing but now i am stuck with finding My Local Disks on 12.04. I am sorry if this is a silly question, but i know nothing of Ubuntu at the moment. Regards,

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• Google App Engine: How to disable cache on 'static' files, or make cache smart

  - by Infinity

  I'm using the app engine locally, and sometimes the JS files are being cached between page refreshes, and it drives me crazy because I don't know if there's a bug in the javascript code I'm trying to write, or if the cache is acting up. How do I completely disable cache for *.js files? Or maybe the question is, how to have it be smart, like based on last-modified date. Thanks!

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• Must partprobe before using drive?

  - by Jeff Welling

  This is a followup question to Cannot mount /dev/sdc1 on Debian 5.0, special device /dev/sdc1 doesn't exist Basically, I have 6 SATA hard drives in a machine and I'm trying to create a RAID6 array with them. When I try to run the mdadm command to create (with the verbose option) a raid array, I see messages like "mdadm: super1.x cannot open /dev/sdf1: No such device or address" which are resolved by doing partprobe /dev/sdf and then re-running the mdadm command. The problem is that I have to run partprobe after each reboot, and from experience I don't think this is normal behaviour -- on no other linux machine do I have to partprobe the device before I can use it. Something must be going wrong, but how do I troubleshoot this to find out what? Could this be caused by a hardware problem? Edit: Additional note - before I seemed to only have this problem with one drive, but now I'm having it with 3 drives.

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• Boot drive is incorrect one.

  - by Dwayne

  I have several hard drives installed. I normally use c: as my boot drive and a much larger drive (h:) for storing most of my files. I found a subfolder in my c:windows folder named windows after a failed reinstall of Vista. Upon inspection I determined it to be older than the c:windows folder and therefore it must be the older, working version of the boot. I renamed the c:windows folder to c:windows.bad and moved the sub windows to the c: root directory. I also copied it to the h: drive. Now MSCONFIG reports that the copy that is booting is the h: copy. How can I change it back to the c: copy and can I delete the c:windows.bad file set?

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• Win 7 move ssd from SATA 1 to SATA 0, drive letter from G: to C:

  - by GaryH

  I got a new SSD, plugged it in on my notebook to the available SATA 1 connector and installed Win7 (Ultimate) on it as drive G:. It is working great. Now I would like to move the SSD to the SATA 0 connector and change the drive letter to C:. The existing 500gb HD that has another copy of Win7 (home) on it I will format and connect to the SATA 1 connector as the G: or some other letter drive. Is this possible? Is there software that will go through the registry and "correct" all of the entries for "G:" for everything installed and fix it all up? Or am I better off biting the bullet and setting the hardware where I want it and doing a fresh install of everything? Thanx, G

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• My External USB drive stops after reading some data

  - by user191542

  I had the external USB 3.0 western Digital My Book essential 3TB drive. I had loto of data on it. Suddenlt when i start copying data from it then after reading 20GB or so data then i get error that system can't read from the location. I have to turn the uSB power off , disconnect it and then again connect it. so i have to trnasfer the data in small chunks like 20Gb , 30GB etc. I have n ow transferred all the data but i want to know that is hard disk gone or it can be fixed or its something windows fault not HD fault

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• Windows 7 Professional doesn't mount my usb flash drive anymore

  - by Valter Henrique

  I have a Kingston flash drive which works fine in every computer that I insert it. But in my Windows 7 it doesn't mount anymore. Why this is happening ? When I insert the flash drive it seems that the Windows 7 recognize it, but when I hover the icon don't show the flash drive to remove it, as usually does. Any idea ? Thanks. Any idea ? Abrir Dispositivos e Impressoras, means, ' Open devices and printers' .

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• Can I "reprogram" an American Express USB drive?

  - by SkippyFire

  I recently received a USB drive that looks like a credit card as a promotion. The drive portion flips out to plug it in. When you plug it in, it opens the run dialog, and opens a URL to an American Express web page. I was able to find it in the Device Manager: But I don't know what else to do? Is there a way I can convert this into a plain old USB drive? Or better yet, can I modify the command that it runs when inserted into a computer?

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• USB flash drive unreadable after a few minutes on Windows 8

  - by B Sharp

  I recently got a new computer with Windows 8. I a have a number of large backup files I am moving from my old PC to my new one. I was able to successfully copy the files to a couple 16 GB flash drives. When I try to copy the files to my new computer, the process starts just fine but after copying about 4 GB of files, the copy stops. If I look at the drive in explorer, the drive is there, but I just get a busy cursor that stays indefinitely if I click it. If I unplug the flash drive and plug it back in, everything is fine again... for a couple minutes. I've tried copying from both flash drives with the same result. I've also tested this on the USB 2.0 and 3.0 ports on my motherboard with the same result (the drives are USB 2.0) It's also puzzling that this is happening since I previously used one of the same flash drives to install Windows 8 on this computer in the first place without any difficulty.

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• Does WD Drive Lock encrypt the data?

  - by ssg

  I wonder if WD Drive Lock ineed encrypts the data on a Western Digital My Book Essential device or just puts a firmware-level password on the device. If it's just a password the data surely could be retrieved by a third party. I could not find anything on about that on user manuals. I found a blog saying "data is secured with AES256" bla bla but that doesn't say anything about if the password could be compromised or not. Because I don't see any delays when I add/remove the password. On the other hand when I enable BitLocker, it takes hours before it encrypts everything with my password.

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• Partitioning a bootable Flash drive

  - by mmc

  Is it possible to have a 2 partition Flash drive that looks like the following: A partition that is bootable to OS X (this will require a GUID partition table) A second partition formatted either FAT32 or NTFS that is readable on both OS X and various flavors of Windows I have set up a disk using Disk Utility on the Mac, and it boots fine with a second FAT32 partition... but Windows does not see it. Any flavor of Windows wants to format the entire drive. Has anyone done this, and if so, can you explain the steps you followed? EDIT: Making it bootable is no problem. I have that. I'm wondering how to make the second partition on a Flash drive visible to Windows. It's possible that the "second partition" is the problem, and I need Windows to be first, and HFS to be second. I'll try that tonight.

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• Completely formatting a USB flash drive

  - by efcjoe

  I have a Verbatim Store 'n' Go drive which by default comes with software in a partition which password protects the drive. I want to erase this partition, as it only works on Windows (I'm having to look at it now through a virtual machine on my Mac). I've tried using KillDisk to totally wipe the whole thing, but it doesn't seem to work, and this password-protecting partition always remains intact. Is there any program which will completely wipe a flash drive, no questions asked? Or is there a way to do it through the Verbatim software? I have the password and everything, I just can't find a way to fully format it. Cheers.

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• Mapped network drive missing from My Computer and Explorer

  - by matt wilkie

  On a Windows XP Pro SP3 machine one network drive refuses to show up in My Computer or Explorer. The missing drive letter is G:, if that matters. Other mappings work fine. Other profiles one the same machine have no problem seeing G:. I can access the G: just fine typing it into the address bar or in CMD shell. I've used TweakUI to toggle hide/show G: with no difference. TweakUI says G: should be visible. I've logged off,on between toggles to make sure the settings are taking effect. I've looked at reg key [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] and made sure it's zero'd.ref We've limped along with this broken setup for some time, just working around it, but some applications do not allow typing in a path when choosing a place to save files and it's reached the point where it's intolerable. So, anyone have any idea why XP won't show this drive letter? or how to fix it?

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• USB flash drive showing empty but half of the capacity is in Used

  - by tamakisquare

  Not sure if I should post my question in superuser, but it looks like the most appropriate place among all StackExchange sites. I have a 16GB Kingston DataTraveler USB drive. When I tried to use it this morning, it showed up nothing in there but yet its details showed that half of the capacity was in used. I tried it with OS X, Ubuntu, and Windows 7 and the results were the same. I tried to create a new folder and it worked. Apparently, the drive is working but somehow not showing my previously stored data. Note that I was still using the drive last night and there wasn't any problems. Following @rob's suggestion, du -h gave me: 16K ./.Trashes 960K ./.Spotlight-V100/Store-V1/Stores/2620683B-A38B-42F4-A247-45CAF4826ADE 976K ./.Spotlight-V100/Store-V1/Stores 1008K ./.Spotlight-V100/Store-V1 1.0M ./.Spotlight-V100 1.1M And, df -h gave me: /dev/sdb1 15G 7.9G 7.1G 53% /media/KINGSTON Confirming what I reported. Anyone got a clue/answer to this issue? Thanks.

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• Running Ubuntu off a USB drive?

  - by Solignis

  I was wondering if a USB 2.0 Thumb drive has enough bandwidth to act as a primary system drive in an Ubuntu Linux server. More specifically an SAN server. I am running an iSCSI target, ZFS and NFS-kernel-server, BIND9 (Slave), and Openldap (Slave). I was thinking of resorting to a thumb drive because my new motherboard only has 4 SATA ports and I have 5 disks. 4 (ZFS Pool) 1 (System). And unless I get an expansion card there is no way to get more SATA ports. This "server" leans more twords a home server. I use in my lab with my VMware server. It provides storage, or atleast it did until it died. Would it still be better to go with the SATA hard disk?

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• Can I trick Carbonite into backing up an external hard drive?

  - by Brian

  I use Carbonite to back up my PC (Windows XP). We were running low on disk space on our home PC (down to 15 GB), so I went out and purchased an external hard drive. However, Carbonite will not back it up. Is it possible to set up Carbonite to backup an external hard drive? I just want the external drive to be extra disk space. From their FAQ: The current version of Carbonite backs up only the files that reside on permanent hard drives on your computer. It will not back up network drives, external drives, and NAS (network accessed storage) drives. If there are files on a remote drive that you wish to include in your Carbonite backup, you should copy the files to a folder on your local hard drive. If the files are on a shared network drive, you could install Carbonite on the computer on which the network shared drive physically exists, and back the files up directly from that computer. Check back soon for a Carbonite service plan that will allow you to back up your external drives.

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• Copy all installed programs & files in a hard disk (which has 32 bit Windows 7) and clone/transfer it to another computer which has 64 bit Windows 7

  - by galacticninja

  I recently got a new PC which has a 64-bit Windows 7 installed. The current PC that I am using has a 32-bit Windows 7 installed. I would like to know if there is a software that can copy all my installed programs and files in the hard disk with the 32-bit Windows 7 PC and transfer it to the newer PC's hard disk which has a 64 bit version of Windows 7. This is essentially like "cloning" a hard disk but I would like to use a 64-bit OS in the target drive, instead of also using the 32-bit OS of the source drive. I would like to do this I can avoid reinstalling and reconfiguring my installed programs and files again on the new PC. If possible, I would like the new PC to work as it was in my previous PC, with the installed programs, configuration and files intact except that the OS is now 64-bit and the hard disk has a larger capacity. I have heard of programs that can clone a hard disk, but my concern is that the 32-bit Windows 7 OS will also be cloned to the new 64-bit PC. If it is not possible to transfer my installed programs and settings like the way I described, are there software that can make it easier to migrate my installed programs, their configurations and my files from a 32-bit Windows 7 PC to a 64-bit Windows 7 PC? Details: I have a SATA to USB connector/adapter to copy files in the current hard disk to the newer one. The two PCs are connected through LAN, so I can also transfer files through LAN. Both PCs only have one hard disk.

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• In 'apt-cache depends' output, what is the meaning of Suggests, Recommends, |, <>?

  - by fred.bear

  I've checked the man/info page, but there is no reference to some aspects of the output fomat of apt-cache depends The man/info page tried to be helpful (in an obtuse manner); quote: "For the specific meaning of the remainder of the output it is best to consult the apt source code" Now in fairness to the info page, that quote was in regards to the 'showpkg' option which it had reasonably explained, but my option had no such explanation... I understand that Linux info comes from many sources (not just man/info pages), and I don't particularly want to rummage through the source (altough somtimes I do), so here is an example of what I'd like to know the meaning of. # I can assume what these mean, but... # What does | mean? (probably means 'or'???) # What does <pkg> and the following indentations mean? # At the end, the interaction(?) of Suggest and Recommends puzzles me. $ apt-cache depends solr-common solr-common Depends: debconf |Depends: openjdk-6-jre-headless |Depends: <java5-runtime-headless> default-jre-headless gcj-4.4-jre-headless gcj-jre-headless gij-4.3 openjdk-6-jre-headless Depends: <java6-runtime-headless> default-jre-headless openjdk-6-jre-headless Depends: libcommons-codec-java Depends: libcommons-csv-java Depends: libcommons-fileupload-java Depends: libcommons-httpclient-java Depends: libcommons-io-java Depends: libjaxp1.3-java Depends: libjetty-java Depends: liblucene2-java Depends: libservlet2.5-java Depends: libslf4j-java Depends: libxml-commons-external-java Suggests: libmysql-java |Recommends: solr-tomcat Recommends: solr-jetty

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• How to dual boot Ubuntu 12.10 and Windows XP sp3 on Dell Dimension 8250 desktop using 2 hard drives

  - by user106055

  I'd like instructions to dual boot Ubuntu 12.10 and Windows XP (sp3) on my desktop Dell Dimension 8250 (this is old and has 1.5 GB RAM which is maximum). I will be using 2 hard drives. Windows XP is already on a 120 GB drive and and Ubuntu 12.10 will go on a separate 80 GB hard drive. Both drives are IDE using a 80 conductor cable where the 40 pin blue connector connects to the motherboard. The middle connector is gray and is "normally" used for slave (device 1) and the black connector at the very end of the cable is meant for the master drive (device 0) or a single drive if only one is used. First, I do not wish the XP drive to have its boot modified by Ubuntu in any way. It should remain untouched...virgin. Let me know where the XP drive and the Ubuntu drive should be connected based upon the cable I've mentioned above, as well as jumper settings for both during the whole process. I'm just guessing, but should I remove the XP drive and put the empty Ubuntu drive in its place and install Ubuntu? By the way, I already have made the DVD ISO disk. For your information, the BIOS for this machine is version A03. When I tap F12 to get to the boot menu, I have the following choices: Normal (this will take me to a black screen with white type giving me the choice to boot to XP or to my external USB backup recovery drive) Diskette Drive Hard-Disk Drive c: IDE CD-ROM Drive (Note that if the CD Drive is empty, it will then go to the DVD drive) System Setup IDE Drive Diagnostics Boot to Utility Partition (This is Dell's various testing utilities) Thank you in advance for your help. Guy

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