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• usb vs firewire for connecting two RAID 0 disks

  - by Arne

  I have a 2TB and a 4TB RAID 0 external drives (both have two physical hard drives in them). Both have a FW800, FW400, and USB port. My MacBook Pro has one FW800 port and two USB ports. I want to copy data from the 4TB drive to the 2TB drive. Is it better to A - connect both directly to the laptop, one with USB and one with FW800 or B - connect the 4TB drive to laptop with FW800 and the 2TB drive to the 4TB drive using a FW400 cable? Anyone have problems daisy-chaining RAID 0 disks using FW? Thanks!

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• Is Centos legal?

  - by Jim B

  I'm trying to figure out if centos is legal (or simply grey). Here's what makes me wonder: They seem to go to great pains not to mention that they are based on redhat in the FAQ they mention a policy about using the redhat trademark, but the link no longer exists. When installing it it's not hard to find a lot of redhat code. I don't bother much with the linux world anymore but I had a client that was wondering about it as his auditors picked up on it and wanted to know where his license was.

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• How does NTFS compression affect performance?

  - by DragonLord

  I've heard that NTFS compression can reduce performance due to extra CPU usage, but I've read reports that it may actually increase performance because of reduced disk reads. How exactly does NTFS compression affect system performance? Notes: I'm running a laptop with a 5400 RPM hard drive, and many of the things I do on it are I/O bound. The processor is a AMD Phenom II with four cores running at 2.0 GHz. The system is defragmented regularly using UltraDefrag. The workload is mixed read-write, with reads occurring somewhat more often than writes. The files to be compressed include personal documents and selected programs, including several (less demanding) games and Visual Studio (which tends to be I/O bound more often than not).

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• Is MozyHome Remote Backup known to slow down Windows Explorer?

  - by Kyle Estes

  Windows Explorer on my home machine is uber slow, and I suspect it is Mozy's fault. In the past Mozy has done some goofy stuff like placing file and folder icon overlays in Windows Explorer, which was really bugging me because I thought they were from TortoiseSVN (and I had uninstalled that!). Anyhow, does anyone else have Mozy installed? Is Windows Explorer really slow respond for you, say when you simply double click the hard drive to browse files? I'd also welcome any tips people might have on debugging why Windows Explorer might be slow (shell extensions known to cause problems, etc.).

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• Add MS-DOS boot option to Windows 2000

  - by Ben Miller

  I've got an old laptop that is running Windows 2000 & Windows 98 in a multi-boot configuration. I need to add MS-DOS to that list of startup options. I've already added a primary partition, formatted it for FAT16 and made it bootable, and installed MS-DOS 6.22. My question is, how do I add my MS-DOS partition to the list of startup options? More information: My single hard drive has three primary partitions: 0: FAT32 Windows 2000 1: FAT32 Windows 98 2: FAT(16) MS-DOS 6.22 Currently, the boot-up screen lists Windows 2000 and Windows 98 as options, with Windows 2000 as the default choice. My boot.ini file currently looks like this: [Boot Loader] Timeout=30 Default=multi(0)disk(0)rdisk(0)partition(1)\WINNT [Operating Systems] multi(0)disk(0)rdisk(0)partition(1)\WINNT="Microsoft Windows 2000 Professional" /fastdetect C:\="Microsoft Windows 98"

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• Is there any descent open-source search engine solutions?

  - by Nazariy

  Few weeks ago my friend asked me how hard is it to launch your own search engine service with list of websites that suppose to be crawled time to time. First what come at my mind was Google Custom Search however pricing policy is quite tricky and would drain your budget if you reach 500K queries per year. Another solution I found here was SearchBlox, which can be compared to Google Mini service. It's quite good solution if you planing to cover search over small amount of websites but for larger projects it is not very handy. I also found few other search platforms like Lucene, Hadoop and Xapian which seems to be quite powerful solutions to reach Google search quality, and Nutch as a web crawler. As most of open-source projects they share same problem, luck of comprehensive guidance of usage, examples and it's expected that you are expert in this subject. I'm wondering if any of you using this solutions, which of them would you recommend, and what should I be aware of?

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• USB key to pass password in Centos 6

  - by Andrew

  I had a room mate that put a livecd in my desktop and looked around on my machine. I caught him in the act and threw him out. I haven't had a room mate for a while now and so as to avoid the livecd issue again I encrypted the hard drive, the machine is running centos 6.3. Is there anyway that I can avoid typing the password in each time if I have usb key in the machine to feed the password to the system? Additional question. Is there anything you can suggest to solve the problem I have ? Thanks

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• Windows XP-Physical memory dumping

  - by Raghav Bali

  I have windows XP professional installed on my desktop. It shows up the following errors - Physical memory dumping blue screen. : This aint a new problem, i have been facing this problem ever since i bought this systme. initially the maintainence guy said it was a faulty hard drive and i have got it replaced 3 times already in the past 1 yr. The system gets utterly slow after a usage of around 2-3 months and then these errors crop up and i have to reinstall my windows to keep away these errors. But this time,its been only a week and the blue screen has come up 3 times. What can be the actual cause of the error?? Mine is an assembled machine, its a core 2duo with gigabyte motherboard and a 1 gb ram, 160 gb seagate hdd. please help me its a seriously annoying problem. Edit : A new error recent popprd up, what should i do now??

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• Hooking up a laptop to an HDTV via VGA

  - by Redandwhite

  I have a 2-3 year old laptop running XBMC, and I have an HDTV that I'd like to connect it to. The only output that the laptop has is VGA (and S-Video - I don't know if the TV supports it) . The TV doesn't support VGA input, but takes HDMI. -- Is it worth buying a VGA-to-HDMI converter? As in this: -- Are there any other, cheaper options available? There's a lot of information around the WWW, but a lot of it's outdated and it's hard to digest everything. I know of at least one other option, and that's a USB to HDMI connection, but I don't even know what to look for or where to get started on that one. I also suspect it might be a little more complicated. If it's cheaper then it could be worth it. EDIT More Details: Intel integrated graphics card (Intel 945 Express Chipset Family) The TV supports up to 1080p resolution

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• Why does partition tool GParted read the 190GB of data twice when shrink a 250GB partition to 190GB?

  - by Jian Lin

  When using GParted to shrink a 250GB partition to 190GB, I thought it will move the 60GB of data back into the 190GB region and call it done. But instead it reads the 190GB of data twice, the first time taking about 1 hour and the second time for 2 hours. The question is: 1) how come it touches the 190GB of data instead of the 60GB of data? 2) how come it reads it twice? Update: i am suspecting this: it says "moving /dev/sdb1 to the right and then shrink it to 190GB"... so is that the reason, first it is to shrink the partition to 190GB, and then move it to the right? So it is not moving to the right and then shrink it, but to shrink it first and move it. (cannot move first because the original 250GB is the whole hard drive). Also, why move it to the right?

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• Using USB drive in Windows and Linux properly

  - by sashkello

  What is the proper way of using a USB hard drive or stick between Linux and Windows? (I'm using Linux Mint 14 and Windows XP on different machines) Should I set it up somehow so that all the files are shared and reused safely between Linux and Windows? The question comes from the recent problem I had. I've created and edited a few folders through Linux and they are not working on Windows now (folder is not accessible. The file or directory is corrupt). While I dealt with that problem, what would be the way of ensuring this doesn't happen again?

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• How do I enable SELinux when booting a ramdisk from a CD/DVD?

  - by JeffG

  I have a bootable DVD which boots the same Kernel as the Hard Drive (which uses SELinux). I have copied /etc/selinux and all kernel modules to my ramdisk, and have tried various combinations of selinux=1 and selinux 1 with enforcing 1 and enforcing 0. as Kernel boot parameters. All files contained in the checkpolicy, libselinux, policycoreutils, selinux-policy and selinux-policy-targeted rpms have also been copied into the ramdisk tree. After the system boots from the ramdisk, I check dmesg: % dmesg | grep -i selinux Kernel command line: initrd=idrd.img ramdisk_size=110476 selinux=1 SELinux: Initializing. SELinux: Starting in permissive mode selinux_register_security: Registering secondary module capability SElinux: Registering netfilter hooks But SELinux isn't running: % /usr/sbin/getenforce Disabled % /usr/sbin/setenforce 1 /usr/sbin/setenforce: SELinux is disabled Neither /var/log/messages nor /proc/kmsg hold clues.

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• Is there a way to create a copy-on-write copy of a directory?

  - by BCS

  I'm thinking of a situation where I would have something that creates a copy of a directory, tweaks a few files, and then does some processing on the result. This wold be done fairly often, maybe a few dozen times a day. (The exact use case is testing patch submissions; dupe the code, patch it, build/test/report/etc.) What I'm looking for could be done by creating a new directory structure and populating it with hard links from the origonal. However this only works if all the tools you use delete and recreate files rather than edit them in place. Is there a way to have the file system do copy-on-write for a file? Note: I'm aware that many FSs use COW at a block level (all updates are done via writes to new blocks) but this is not what I want.

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• How can I share a printer and files on a Windows network over wifi

  - by Jacques

  What is the easiest way to create this setup: WiFi internet router separate in one room. Study room: Laptop with USB printer connected with wifi. My room: Laptop connected with wifi. I want to be able to print from the "My room" laptop to the "Study room" printer, and also share files between them. What is the easiest way to do this? Note, the wireless router needs to be in a separate room for both laptops to be able to connect to it. I've tried configuring homegroups and stuff to do with IP addresses that I found on the internet but have had no success. I'm not an expert with PC's but I've tried hard so there is probably just some trick to do it. If someone can help that will be great.

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• How to relink user folders in Windows 7

  - by Jonathan

  The short story: Win7 lost track of my user folders location (desktop, my documents, my pictures etc...). They now reside on a different partition. How can I relink these folders? The long story: The way I partition my drives is: C: - SSD drive for Windows and Program Files D: - A large regular hard drive for all my user data The first thing I do after a fresh Win7 install is move my user folders to D:, by right clicking on these folders under C:\users\username\, choosing the Location tab and clicking on Move. I've just completed encryption of D: using TrueCrypt. It shows a lot of warnings before the encryption process, but (hrrmm...) it does not mention the fact that after encryption the data is located on a new drive letter, say E: This broke Win7's links to my special user folders. How can I relink these folders?

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• Are animated GIFs supported in Google Chrome?

  - by James Goodwin

  I have recently been testing a website and found animated gif images that seem to show fine in IE and Firefox but in Google Chrome they only show briefly and then dissapear! This happens if I view the image on the page or view the file directly. Are there any reported problems in displaying GIFs in Chrome, or is it just being fussy? There seemed to have been some problems in older versions of Chrome, but it's hard to believe something as simple as this wouldn't have been fixed by now. The version of Google Chrome I am using is: 4.1.249.1021 Not sure if this is relevant, but some info about the image: Width: 216 pixels Height: 36 pixels Horizontal resolution: 96dpi Vertical resolution: 96dpi Bit Depth: 32 Frame Count: 3 EDIT: Seems to be a problem relating to the latest beta version of Chrome, as it works fine in 4.0.249

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• How to backup in Fedora-13?

  - by Ramy

  I just bought a 1.5T HDD and a disk enclosure. I connected this disk to my laptop via the provided USB cable. I then used the following command: rsync -r -t -v --progress --delete -c -l -z / /media/C4E41A11E41A0678/Moonface_BKP/ I ran this for a long (long long) time when i noticed that what had been backed up to the HDD began to be backed up. In other words, when i ran the command, it created a /media directory and a C4... directory below that and kept recursively backing up this directory (since, I suppose, I was backing up the hard drive itself, too). So...what's the proper way to use rsync?

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• Installing and maintaining an email server

  - by Andrew

  I need to move hosting providers for four or five domains and for several reasons I'm considering a Linux VPS rather than staying with my current shared, managed hosting provider. The only thing that's stopping me is email. I have lots of experience running and maintaining Apache, but none with email servers. Based on some research, if I want to keep what I've using now, it looks like I'd be going with Postfix and Dovecot, and probably Exim and SpamAssassin. I have no problem performing regular maintenance and watching for security updates, but I don't want to bite off more than I can chew. For someone new to email services, how hard is it to set up an email server that is externally accessible (via SMTP and POP3, not IMAP), available over SSL/TLS and reasonably reliable for multiple domains? How much of a time commitment is it to maintain one?

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• Windows Server 2008 R2 64bit Screen Frozen and Remote Desktop Freezes but Server Continues Working

  - by Jacques

  I've asked this question a couple of times but I don't seem to be getting any real answers. We have a SBS (Windows Server 2008 Rc) server and suddenly the screen has started freezing. Even when we go into the system via remote desktop it worked once or twice (since the problem started), but now the RDP screen freezes once it gets just past the Welcome screen. The server itself is running, SQL is working, Exchange is working, file share is fine. It's just the UI that isn't working. We've tried hard resetting and that works for a short while before the problem comes back. Where do we begin to resolve this issue? Thanks, Jacques

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• Are there any home/soho NAS devices that will backup/sync to the cloud?

  - by 3rdparty

  Looking for a home office (SOHO) market (priced) network hard drive (NAS) that will sync some or all of its content to a cloud-based backup service. The only option I've been able to find so far is NetGear's [ReadyNAS Vault][1] however from what I've read it's not as secure as it could be, and the service is quite expensive ($200/yr for 50GB of cloud storage) - it's 'powered' by ElephantDrive Ideally would love to see something like Wuala integrated into a Lacie Network HDD - conveniently, I suspect this is in the works as Lacie recently acquired Wuala, however nothing has come of it yet. I know there are options to use rsync with a customizable NAS (such as the very versatile and hackable D-Link DNS-323, but the easier this is to setup and maintain, the better. Thanks! ps. I had many links posted within this question, but was limited to posting with only one due to anti-spam restrictions - gotta get my 'reputation' higher!

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• Linux server remounted to read-only

  - by Eustahije

  I have tried to find anwser on SF, but no luck. Nothing worked. (and I have just basic knowledge of linux systems - I'm more developer) Hour ago I noticed that database is not reacting anymore. From some reason system went to readonly mode. Complete server is now, ofc, unavailable. Server is VPS in Dutch company, and have no idea what I can do with it now to unlock it. Every suggestion would be more then appriciated. I tried to save as much of database as possible but there are 20G of images, that would be hard to backup, but I can do that also, if that is something that is smart to do.

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• Mini-ITX board for AM3 Athlon X4 600e processor.

  - by Kamil Zadora

  Hello, I am planning to build a PC to control a robotic platform that I am building (about 50% complete). I need more power than ATOM platform could bring, as the robot will need to do on the fly image processing to work as intended. I was considering using Athlon X4 600e as it is rated 45W Maximum output. Probably underclocked it would go lower than 30-35W. I do not I'am at very long battery life, but the 17Ah, 12V battery should keep it running for few hours. My problem is: motherboard. I am space limited so I am looking for a nice mini-itx AM3 motherboard to match the processor. It is hard to find many tests about power usage of the motherboards itself (for example, when using the same processor on different motherboards, test are usualy done in the opposite matter). Could you provide any motherboard examples or suggest what chipset to look for? Thank you in advance.

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• Windows 7 - swap file on a USB disk? [closed]

  - by Sara Cohen

  Possible Duplicate: How to move the page file to another physical disk location Windows 7 I was given temporarily a PC, running Windows 7 Ultimate. The problem is it's hard drive is full, there are like 250 MB free. The swap file is set to none. It has 4 GB RAM. When I load a few tabs in Chrome or IE and start a game it runs out of memory. I already emptied Recycle Bin, %temp%, etc. Deleting/moving user files or adding RAM is not an option. Now I have a USB 3 7200 RPM drive, it's connected to a USB 3 port and is really fast. Is there a way to create a swap file on that drive?

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• Not able to access a folder in Windows 7 and not able to see in Ubuntu.

  - by Rohit

  I have four partitions on my hard disk. Partition C has Windows XP installed and Partition G has Windows 7 installed. Ubuntu 10.10 is also installed, probably in F. Partitions C and G are NTFS. When I boot into C, XP is loading but when I click on the C Drive in MyComputer, it displays: "Access is denied". Windows 7 displays the folder tree of C, but when I try to open a folder, I am not able to view the contents. The same error: of Access Denied. When I try to view the C Partition using Ubuntu, the entire C partition is not visible. I tried following commands to take ownership of the C drive: takeown /f C: cacls C: /G Rohit:F but still I am not able to get rid of "Access Denied". I again tried the above commands from the Windows 7 safe mode, but still the problem persists. The two commands return "Successful", but nothing is happening.

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• Why can't the Adobe Flash player send key strokes it doesn't handle to the browse in which it is run

  - by jim.e.clark

  I'm a heavy web user that uses the address bar constantly while browsing the web. I often use Ctrl + T to open a new tab or Ctrl + D to move focus to the address bar so it is very annoying that these shortcut keys do not work when a Flash object has focus on the active browser tab. I would happily give up all keyboard handling in the Flash Player in exchange for having keystrokes sent to the browser. In fact, as someone who has worked in software development for over 15 years it is hard to believe that Flash doesn't pass common browser shortcut keys to the browser or have an option to do so. So my question is this: Am I missing some option, some Flash shortcut key or some Firefox add-on that will alleviate my suffering?

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