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• Using 12.04 installation as a persistent pen drive

  - by Cawas

  Disclaimer: I aim to build a self contained pen drive with my application inside, so no matter about updates. Maybe I'm looking at the wrong linux distribution to do this... Please let me know if you think so. I've tried knoppix and even lubuntu, but they don't come with enough "drivers" for Unity3D to work. Creating a custom live persistent pen drive is a real pain and I'm trying for 1 day without any success. Sure, being able to do it would probably be ideal and occupy the minimum space. Using the installation image on a pen drive, however, is good enough and is really easy to create. We can even do it from any OS, using UNetBootin, LiLi USB Creator or some other methods. Straight forward. Some recommend installing it on a pen drive. But that requires a lot of space and, I believe, it won't behave as good as something meant to be installed on a usb disk, because of memory management. So, there are only a few negative points on using the installation image that I can think of. Question here, is how to remove those drawbacks: Having to press "Try Ubuntu". That's the big one. Couldn't find how. Unable to load everything on memory and keep on running without the pen drive (like this) Unable to remove "Install Ubuntu 12.04 LTS" app. Setting the ISO to use maximum amount of space for the OS will leave pen drive with zero space left and any file saved within it from ubuntu is inaccessible from the outside (when plugin the pen drive and not booting from it). Am I missing something? Can those points be fixed?

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• LiveCD/USB boot issues with Ubuntu 12.04 on blank drive

  - by Richek

  Not sure how common this issue is, or even how badly I may be missing something simple, but I am a first time usuer having some serious problems. Some background: old HDD running Windows 7 developed too many bad sectors and is bricked. I'm attempting to install Ubuntu 12.04 on a fresh 1TB drive by booting from a liveCD USB flash drive. I've not been able to get past the initial menu screen, however, as the process stalls out shortly after selecting an option (both boot from drive and install to drive). I've tried multiple USB drives as well as CDs, modified the boot order, flashed BIOS, and even tried booting with only the flash drive and the keyboard connected with the same results.Typically what I observe is that the OS begins what I think is compliling, listing drivers and components before freezing on one. When the keyboard is plugged in, its the keyboard driver, before I flashed BIOS, it was a BIOS related item, now its an unknown entry. The computer seems to be reading the drive (idicated by USB light flashing or CD drive reving) for roughly 10 minutes with no progress, followed by the drives going quiet. Some spec info: Motherboard: ASUS P5Q Pro, BIOS version 2102 (latest version), Intel chipset CPU: Intel Core 2 Duo E8400 Wolfdale 3.0GHz help would be appriciated!

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• installing linux froom usb pen drive

  - by zulu

  I'm new to Linux. I'm using Ubuntu 11.04. Now i want to install Ubuntu 12.04 . I got an ISO image of Ubuntu 12.04 Desktop. I put this image in to a pen drive which is formated,set the boot option boot from usb but nothing happened . I searched this over the net and on Ubuntu website but nobody has given the complete steps . someone say u can install from the Ubuntu also ,someone says u can do a fresh installation from usb pen drive u need to make you pen drive bootable etc. etc. . My problem is that i don't know the exact steps how ton install Ubuntu from usb pen drive? All I want to do is to completely remove my Ubuntu 11.04 and install Ubuntu 12.04 from usb pen-drive. Can any body tell me how to make a pen drive bootable ? How to install Ubuntu 12.04 from pen-drive? Please give me a step by step procedure. please explain me how to do it step by step . Thanx in advance

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• Documents stored on separate internal drive, Ubuntu doesn't notice on startup

  - by PlanoAlto

  My machine has Windows 7 Ultimate x64 and Ubuntu 12.04 LTS running side-by-side on a single hard drive with GRUB bootloader, each with 500 GB storage. I keep my personal documents on a separate 1TB hard drive so they remain isolated from any changes I make to the OS drive, but when Ubuntu starts it does not seem to notice my documents drive. While I've installed and worked with Ubuntu 12.04 Server x32 before, using it as a desktop OS is new to me. I use my documents drive for all of my personal data, including wallpapers and music, so it is imperative that Ubuntu recognize it on startup. Concerning the two specific examples: Ubuntu loads with the default blue-colored desktop instead of my desired picture of the spectacular Carina galaxy. When I right-click the desktop and select "Change Desktop Background", it wakes up from its amnesia and loads the proper background. As for my music, Rhythmbox defaults to an empty library upon reboot, forcing me to reload the settings manually each time. This gets quite tedious because I certainly can't work to my full potential without my music. The second thing I would like to address is making Ubuntu point the documents directories in ~ to their appropriate counterparts on the 1TB documents drive. I realize that this question is not new, but when I create the symbolical links, they established themselves inside the directories and did not convert the directories themselves into symbolical links. I also prefer not to move the files themselves from their current location on the 1TB drive. I believe this would also help the Rhythmbox library problem as well considering it's a default directory for the music player. Excerpt from fstab: proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sdb6 during installation UUID=057ac83e-76ad-460d-86e5-b6d46e9b1d80 / ext4 errors=remount-ro 0 1 # swap was on /dev/sdb7 during installation #UUID=1183df90-23fc-44e4-aa17-4e7c9865d5cb none swap sw 0 0 /dev/mapper/cryptswap1 none swap sw 0 0 That's enough content for one question. I really like the Ubuntu experience so far since it doesn't treat me like an idiot out of the box (can't say the same for Windows) so I can't wait to hear from the community! Thanks for your help in advance.

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• Detect a USB drive being inserted - Windows Service

  - by Tom Bell

  I am trying to detect a USB disk drive being inserted within a Windows Service, I have done this as a normal Windows application. The problem is the following code doesn't work for volumes. Registering the device notification: DEV_BROADCAST_DEVICEINTERFACE notificationFilter; HDEVNOTIFY hDeviceNotify = NULL; ::ZeroMemory(&notificationFilter, sizeof(notificationFilter)); notificationFilter.dbcc_size = sizeof(DEV_BROADCAST_DEVICEINTERFACE); notificationFilter.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE; notificationFilter.dbcc_classguid = ::GUID_DEVINTERFACE_VOLUME; hDeviceNotify = ::RegisterDeviceNotification(g_serviceStatusHandle, &notificationFilter, DEVICE_NOTIFY_SERVICE_HANDLE); The code from the ServiceControlHandlerEx function: case SERVICE_CONTROL_DEVICEEVENT: PDEV_BROADCAST_HDR pBroadcastHdr = (PDEV_BROADCAST_HDR)lpEventData; switch (dwEventType) { case DBT_DEVICEARRIVAL: ::MessageBox(NULL, "A Device has been plugged in.", "Pounce", MB_OK | MB_ICONINFORMATION); switch (pBroadcastHdr->dbch_devicetype) { case DBT_DEVTYP_DEVICEINTERFACE: PDEV_BROADCAST_DEVICEINTERFACE pDevInt = (PDEV_BROADCAST_DEVICEINTERFACE)pBroadcastHdr; if (::IsEqualGUID(pDevInt->dbcc_classguid, GUID_DEVINTERFACE_VOLUME)) { PDEV_BROADCAST_VOLUME pVol = (PDEV_BROADCAST_VOLUME)pDevInt; char szMsg[80]; char cDriveLetter = ::GetDriveLetter(pVol->dbcv_unitmask); ::wsprintfA(szMsg, "USB disk drive with the drive letter '%c:' has been inserted.", cDriveLetter); ::MessageBoxA(NULL, szMsg, "Pounce", MB_OK | MB_ICONINFORMATION); } } return NO_ERROR; } In a Windows application I am able to get the DBT_DEVTYP_VOLUME in dbch_devicetype, however this isn't present in a Windows Service implementation. Has anyone seen or heard of a solution to this problem, without the obvious, rewrite as a Windows application?

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• Lessons from a SAN Failure

  - by Bill Graziano

  At 1:10AM Sunday morning the main SAN at one of my clients suffered a “partial” failure.  Partial means that the SAN was still online and functioning but the LUNs attached to our two main SQL Servers “failed”.  Failed means that SQL Server wouldn’t start and the MDF and LDF files mostly showed a zero file size.  But they were online and responding and most other LUNs were available.  I’m not sure how SANs know to fail at 1AM on a Saturday night but they seem to.  From a personal standpoint this worked out poorly: I was out with friends and after more than a few drinks.  From a work standpoint this was about the best time to fail you could imagine.  Everything was running well before Monday morning.  But it was a long, long Sunday.  I started tipsy, got tired and ended up hung over later in the day. Note to self: Try not to go out drinking right before the SAN fails. This caught us at an interesting time.  We’re in the process of migrating to an entirely new set of servers so some things were partially moved.  This made it difficult to follow our procedures as cleanly as we’d like.  The benefit was that we had much better documentation of everything on the server.  I would encourage everyone to really think through the process of implementing your DR plan and document as much as possible.  Following a checklist is much easier than trying to remember at night under pressure in a hurry after a few drinks. I had a series of estimates on how long things would take.  They were accurate for any single server failure.  They weren’t accurate for a SAN failure that took two servers down.  This wasn’t bad but we should have communicated better. Don’t forget how many things are outside the database.  Logins, linked servers, DTS packages (yikes!), jobs, service broker, DTC (especially DTC), database triggers and any objects in the master database are all things you need backed up.  We’d done a decent job on this and didn’t find significant problems here.  That said this still took a lot of time.  There were many annoyances as a result of this.  Small settings like a login’s default database had a big impact on whether an application could run.  This is probably the single biggest area of concern when looking to recreate a server.  I’d encourage everyone to go through every single node of SSMS and look for user created objects or settings outside the database. Script out your logins with the proper SID and already encrypted passwords and keep it updated.  This makes life so much easier.  I used an approach based on KB246133 that worked well.  I’ll get my scripts posted over the next few days. The disaster can cause your DR process to fail in unexpected ways.  We have a job that scripts out all logins and role memberships and writes it to a file.  This runs on the DR server and pulls from the production server.  Upon opening the file I found that the contents were a “server not found” error.  Fortunately we had other copies and didn’t need to try and restore the master database.  This now runs on the production server and pushes the script to the DR site.  Soon we’ll get it pushed to our version control software. One of the biggest challenges is keeping your DR resources up to date.  Any server change (new linked server, new SQL Server Agent job, etc.) means that your DR plan (and scripts) is out of date.  It helps to automate the generation of these resources if possible. Take time now to test your database restore process.  We test ours quarterly.  If you have a large database I’d also encourage you to invest in a compressed backup solution.  Restoring backups was the single larger consumer of time during our recovery. And yes, there’s a database mirroring solution planned in our new architecture. I didn’t have much involvement in things outside SQL Server but this caused many, many things to change in our environment.  Many applications today aren’t just executables or web sites.  They are a combination of those plus network infrastructure, reports, network ports, IP addresses, DTS and SSIS packages, batch systems and many other things.  These all needed a little bit of attention to make sure they were functioning properly. Profiler turned out to be a handy tool.  I started a trace for failed logins and kept that running.  That let me fix a number of problems before people were able to report them.  I also ran traces to capture exceptions.  This helped identify problems with linked servers. Overall the thing that gave me the most problem was linked servers.  In order for a linked server to function properly you need to be pointed to the right server, have the proper login information, have the network routes available and have MSDTC configured properly.  We have a lot of linked servers and this created many failure points.  Some of the older linked servers used IP addresses and not DNS names.  This meant we had to go in and touch all those linked servers when the servers moved.

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• Wipe, Delete, and Securely Destroy Your Hard Drive’s Data the Easy Way

  - by The Geek

  Giving a computer to somebody else? Maybe you’re putting it out on Craigslist to sell to a stranger—either way, you’ll want to make sure that your drive is completely wiped, scrubbed, and clean of any personal data. Here’s the easy way to do it. If you only have access to an Ubuntu Live CD or thumb drive, you can actually use that instead if you prefer, and we’ve got you covered with a full guide to securely wiping your PC’s hard drive. Otherwise, keep reading. Wipe the Drive with DBAN Darik’s Boot and Nuke CD is the easiest way to permanently and totally destroy every bit of personal information on that drive—nobody is going to recover a thing once this is done. The first thing you’ll need to do is download a copy of the ISO image, and then burn it to a blank CD with something really useful like Imgburn. Just choose Burn image to Disc at the start screen, select the little file icon, grab the downloaded ISO, and then go. If you need a little more help, we’ve got you covered with a beginner’s guide to burning an ISO image. Once you’re done, stick the disc into the drive, start the PC up, and then once you boot to the DBAN prompt you’ll see a menu. You can pretty much ignore everything on here, and just type… autonuke And there you are, your disk is now being securely wiped. Once it’s all done, you can remove the CD, and then either pack the PC up to sell, or re-install Windows on there if you feel like it. More Advanced Method If you’re really paranoid, want to run a different type of wipe, or just like fiddling with the options, you can choose F3 or hit Enter at the prompt to head to the advanced selection screen. Here you can choose exactly which drive to wipe, or hit the M key to change the method. You’ll be able to choose between a bunch of different wipe options. The Quick Erase is all you really need though.   So there you are, easy PC wiping in one package. What about you? Do you make sure to wipe your old PCs before giving them away? Personally I’ve always just yanked out the hard drives before I got rid of an old PC, but that’s just me. Download DBAN from dban.org Similar Articles Productive Geek Tips Use an Ubuntu Live CD to Securely Wipe Your PC’s Hard DriveHow to Dispose of Old Computers ResponsiblyHow To Delete a VHD in Windows 7Speed up External USB Hard Drives in Windows VistaSpeed Up SATA Hard Drives in Windows Vista TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Follow Finder Finds You Twitter Users To Follow Combine MP3 Files Easily QuicklyCode Provides Cheatsheets & Other Programming Stuff Download Free MP3s from Amazon Awe inspiring, inter-galactic theme (Win 7) Case Study – How to Optimize Popular Wordpress Sites

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• How to backup a networked drive?

  - by nute

  I have a networked drive (Iomega Media Drive). To be safe in case the drives crashes, I've decided to buy an additional networked drive (WD MyBook World). Now, how do I backup one onto the other continuously? The WD drive came with a backup software (trial version, they didn't say that when i bought it), however it doesn't allow me to select a networked drive, only local drives. How do I backup a NETWORKED DRIVE ONTO A NETWORKED DRIVE? Thanks

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• Dell XPS 15z/ L511Z merging partitions

  - by Alvin M

  i have a situation here, i bought a new dell xps 15z and was successful in making drive partitions through the help of this site (http://superuser.com/questions/313082/dell-xps-15-l502x-hard-drive-partition) now i have drive C with 100.55gb and a new volume with 578.45gb im planning to use EaseUS again to undo this and resize my drive C but im scared i might cause damage to my drive, is there a proper way to undo this and transfer the remaining 78.45gb from the new volume back to my drive C again? please help

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• Setting up a laptop hard drive as a secondary on a tower?

  - by vermiculus

  I'm trying to install Windows 8 for a friend who has recently bricked a laptop hard drive. The new one is OEM so there is no OS - I need to be able to stick it in to my tower and load the new OS on it. Both bricked and replacement laptop hard drives are SATA and connect to my mobo just like any other. After I post this I'm going to check the BIOS and see if it shows up, but so far I don't have it showing up in Disk Management. Any ideas would be greatly appreciated.

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• Any large USB sticks with integrated card readers?

  - by Al

  I have one of Kingston's DataTraveller Micro Reader USB sticks, a fantastic memory stick with an integrated micro SD and M2 card reader. However, I've gradually filled it to the brim and am looking for a larger stick. Unfortunately, Kingston don't make them any bigger than the 4GB one that I currently have and I was hoping to go to 16GB now that they've come down in price. Does anyone know if any manufacturers make something similar: a 16GB stick with a micro SD card reader integrated (I'm not bothered about the M2 reader).

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• Windows XP with Ubuntu 14.04 on 2 separate hard drives

  - by maplenet2

  I am new to Ubuntu. I have Windows XP Professional 32-bit on one 300GB IDE hard drive and Ubuntu 14.04 running on another 61GB IDE hard drive, and I cannot get my Windows XP to boot with Grub! When I select Windows XP from the boot menu, Grub just restarts my computer. The computer I have with those two hard drives is a Dell Optiplex GX240, so the hardware is old, and its BIOS won't let me change the boot priority on the two IDE hard drives. What can I do now? Is there a step I missed when installing Ubuntu? Can I edit Grub to boot Windows XP without messing with the BIOS? Do I have to downgrade to an older release of Ubuntu to make it work? I am willing to reinstall Ubuntu, if that's what it takes.

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• How to Mount a Hard Drive as a Folder on Your Windows PC

  - by Taylor Gibb

  Getting a new drive is always exiting, but having 6 or 7 drives show up in My Computer isnt always ideal. Using this trick you can make your drives appear as folders on a another drive. Logically it will look like its one drive but any files in that folder will physically be on another drive. Note: This will only work with NTFS formatted drives. Press the Windows Key and R to bring up a run box, type diskmgmt.msc and press enter. How to Make the Kindle Fire Silk Browser *Actually* Fast! Amazon’s New Kindle Fire Tablet: the How-To Geek Review HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS

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• Linux Software RAID: How to fsck on hard drive?

  - by Rick-Rainer Ludwig

  We have a Linux server running with Software RAID1. We see some issues in /var/log/messages like: unreadable sector. I want to perform a complete fsck on the drive to get some more information, but a fsck /dev/md0 brings a clean due to the Software RAID layer in between. How can I check the real hard drive? Do I need to disassemble the whole RAID? How do I deal with the inconsistency in the partition due to the additional Software RAID header? Does anyone have a good idea for this?

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• What's the best external hard drive configuration for a software developer laptop?

  - by Dan

  I've got a Dell laptop that I use as a software developer box at work and find that the drive is usually the bottleneck. I'd like to hook up two 10k RPM drives that are striped for performance. I've looked for drive cases with RAID but there don't seem to be very many choices and I'm worried about compatibility with the drives (preferably SATA 2). Also I don't have a SATA connection on my machine so it'll have to USB 2.0 for now. Am I headed down the right path or am I missing a much simpler configuration?

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• Error- D:\ is not accessible. Access is denied

  - by Aaron

  All of the sudden the D drive gives me an error when I try to open it: D:\ is not accessible. Access is denied. I have files on the drive that I would like to recover, so I do not want to reformat the drive. It acts almost like the computer doesn't recognize the drive. I have a feeling it's something with security settings, I may have accidentally changed something on the drive. I'm running on a Acer Aspire laptop on Windows Vista, SP2. I beleive both the C and the D drive run off of the same disk drive. At least that's all the Device Manager shows. So correct me if I'm wrong, but that would make it a partitioned drive.

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• No power save on external hard drive - How to implement?

  - by blastawaythewall

  I recently bought a new 3.5" USB external hard drive which I thought had a power save feature on it, but it turns out that it doesn't. So whether it's being used or not, it spins, which wouldn't be a problem if it wasn't so loud and didn't get really really hot. After doing some research, it seems like what controls this is the enclosure of the hard drive and not the drive itself or the OS (although I suspect that's not entirely true). I attempted to use the "hdparm" utility but it couldn't identify my externals. Just to be clear, I'm defining power save as a hard drive spinning down after a certain time period of not being used (read from/written to). Also, I have other externals that do this, so it's not a problem from my computer. Here's my question: Is there a way to implement a power save-like feature on my hard drive through software, OS settings, or anything else? Here's some details: Running: Windows XP Home SP2 HD Model: Cavalry CAUM-B-OTB 2TB (although the website only lists 1TB max) Inside: Hitachi Deskstar 7K2000 (HDS722020ALA330) (I would link, but new users can only post 1) Thanks in advance.

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• Google Drive SDK: Writing your First App in Java

  Google Drive SDK: Writing your First App in Java During this session we'll show how to build a complete Java application that uses the Google Drive API to upload a file into the user's Drive account. If you follow along with the presentation, you can have a working Drive command-line application running by the end of the session. From: GoogleDevelopers Views: 0 0 ratings Time: 00:00 More in Science & Technology

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• Internal hard drive, can't format

  - by user113923

  I cannot format anymore the hard drive of my laptop. Here is how I proceed: I am starting my computer with a USB live drive (Ubuntu 10.04 LTS - the Lucid Lynx). Then I start disk utility and try to format the hard drive - I choosed to format the Master boot record but I get the following error: Error creating partition table: helper exited with exit code 1: Error calling fsync(2) on /dev/sda: Input/output error If I try to delete partitions I get the following error Error erasing: helper exited with exit code 1: In part_del_partition: device_file=/dev/sda, offset=32256 Entering MS-DOS parser (offset=0, size=30005821440) MSDOS_MAGIC found looking at part 0 (offset 32256, size 4096157184, type 0x83) new part entry looking at part 1 (offset 10618836480, size 8414461440, type 0x83) new part entry looking at part 2 (offset 19033297920, size 1077511680, type 0x82) new part entry looking at part 3 (offset 20110809600, size 9895011840, type 0x07) new part entry Exiting MS-DOS parser MSDOS partition table detected got it got disk got partition - part-type=0 Error: Input/output error during write on /dev/sda ped_disk_commit_to_dev() failed If I try to install ubuntu frrom the usb on the hard drive and choose erase and use the entire disk I get the error message Input/output error during write on /dev/sda For side infos I have at the moment 4 partitions on my hard drive: /dev/sda1 (ext2) /dev/sda2 (ext2) /dev/sda3 (swap) /dev/sda1 (ntfs) + /dev/sda (unlocated Space) My ultimate goal is to reinstall ubuntu and have only 2 partitions... I would really appreciate any help here! Thanks JB

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• What software can copy the whole hard drive with Operating System to DVD-R, and be able to "refresh

  - by Jian Lin

  What software can take a snapshot of a Win XP or Win 7 machine -- burning all files into a DVD-R, and then be able to boot from that DVD-R can restore the whole machine back to that state stored inside the DVD-R? Maybe for Win XP, it is easier as the OS can be just 1 or 2GB on the hard drive, but for Win 7, a fresh installation is already 16GB on the hard drive, so it will need several DVD-R to take the snapshot? thanks. (any of these software are open source?)

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• How to view/mount other partitions on your hard drive

  - by Preston Zacharias

  Recently I have installed Ubuntu 12.04 Beta 2 on a USB flash drive and decided to install it on an old external HDD which I have taken out of the casing and succesfully mounted in my desktop computer. There is no other operating system besides the newly install Ubuntu. However, there is about 500gb of data on the drive. This is why i used a partitioning software on my windows 7 netbook to partition the hard drive to set aside 1tb for files, 350gb of space for linux and the remaining 650gb for Vista which i plan on installing soon. But this is where the problem sets in...when installing Ubuntu it does not recognize that the drive is partitioned at all, it's just one big open block of space...so I used the installers built in partitioning feature to set aside 300gb for main Ubuntu install and 50gb for swap space. I set both of these partitions to be created at the "end" so that it wouldn't delete or write over my data. And this is where i am really lost; when booting into Ubuntu i am able to use it perfectly fine, got on internet, etc...but i have NO CLUE as to how i can view files that were previously on the drive (all of my data that i had prior to install). How can I mount/be able to view the other partition so that i can have access to my data? Thank you ahead of time! I REALLY appreciate any help or advice! ~Preston

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• After Upgrading Ubuntu to 9.10 my hard drive now has a warning.

  - by Sean

  it is a 500gb hard drive format as ext3 path /dev/sdc1 The disk utility does not even see this. This Warning is from gparted: e2label: No such device or address while trying to open /dev/sdc1 Couldn't find valid filesystem superblock. Couldn't find valid filesystem superblock. dump2fs 1.41.9 (22-Aug-2009) dumpe2fs: No such device or address while trying to open /dev/sdc1 Unable to read contents of this file system? Because of this some operations may be unavailable. END OF ERROR MESSAGE Did I lose something during the upgrade of the system? Was it the hard drive or the Ubuntu system that went bad?

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• Why are hard drives moving to 4096 byte sectors, vs. 512 byte sectors?

  - by Chris W. Rea

  I've noticed that some Western Digital hard drives are now sporting 4K sectors, that is, the sectors are larger: 4096 bytes vs. the long-standing standard of 512 bytes. So: What's the big deal with 4K sectors? Is it marketing hype, or a real advantage? Why should somebody building a new PC care, or not, about 4K sectors? Why is this transition taking place now? Why didn't it happen sooner? Are there things to look out for when buying a 4K sector hard drive? e.g. incompatibility? Anything else we should know about 4K sectors?

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• Reading a ZFS USB drive with Mac OS X Mountain Lion

  - by Karim Berrah

  The problem: I'm using a MacBook, mainly with Solaris 11, but something with Mac OS X (ML). The only missing thing is that Mac OS X can't read my external ZFS based USB drive, where I store all my data. So, I decided to look for a solution. Possible solution: I decided to use VirtualBox with a Solaris 11 VM as a passthrough to my data. Here are the required steps: Installing a Solaris 11 VM Install VirtualBox on your Mac OS X, add the extension pack (needed for USB) Plug your ZFS based USB drive on your Mac, ignore it when asked to initialize it. Create a VM for Solaris (bridged network), and before installing it, create a USB filter (in the settings of your Vbox VM, go to Ports, then USB, then add a new USB filter from the attached device "grey usb-connector logo with green plus sign")  Install a Solaris 11 VM, boot it, and install the Guest addition check with "ifconfg -a" the IP address of your Solaris VM Creating a path to your ZFS USB drive In MacOS X, use the "Disk Utility" to unmount the USB attached drive, and unplug the USB device. Switch back to VirtualBox, select the top of the window where your Solaris 11 is running plug your ZFS USB drive, select "ignore" if Mac OS invite you to initialize the disk In the VirtualBox VM menu, go to "Devices" then "USB Devices" and select from the dropping menu your "USB device" Connection your Solaris VM to the USB drive Inside Solaris, you might now check that your device is accessible by using the "format" cli command If not, repeat previous steps Now, with root privilege, force a zpool import -f myusbdevicepoolname because this pool was created on another system check that you see your new pool with "zpool status" share your pool with NFS: share -F NFS /myusbdevicepoolname Accessing the USB ZFS drive from Mac OS X This is the easiest step: access an NFS share from mac OS Create a "ZFSdrive" folder on your MacOS desktop from a terminal under mac OS: mount -t nfs IPadressofMySoalrisVM:/myusbdevicepoolname  /Users/yourusername/Desktop/ZFSdrive et voila ! you might access your data, on a ZFS USB drive, directly from your Mountain Lion Desktop. You might play with the share rights in order to alter any read/write rights as needed. You might activate compression, encryption inside the Solaris 11 VM ...

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• Windows 8 BIOS - Boot Ubuntu from External HDD

  - by F3AR3DLEGEND

  My laptop came pre-loaded with Windows 8 64-bit (only storage device is a 128 GB SSD). Since it is my school laptop/I've heard creating a Linux partition alongside Windows 8 is not very wise I installed Ubuntu onto my external hard drive. I have a 500GB external HDD with the following partitions: Main Partition - NFTS - ~400 GB Extension Partition / - ext2 - ~25gb /home - ext2 - ~30gb swap - ext2 - 10gb /boot - ? - 10gb ? = not sure of partition Using the PenDriveLinux installer, I created a LiveUSB version of Ubuntu 12.04 (LTS) on a 4GB USB drive. Using that, I installed Ubuntu onto the external hard-drive, without any errors (or at least none that I was notified of). Using the BIOS settings, I changed the OS-loading order so that it is in this order: My External USB HDD Windows Boot Loader Some other things Therefore, Ubuntu should load from my hard drive first, but it doesn't. Also, my hard drive is in working condition, and it turns on when BIOS starts (there is a light indicator). When I start my laptop, it goes directly to Windows 8 (I have the fast startup setting disabled as well). So, is there any way for me to set it up so that when my HDD is connected, it will automatically load Ubuntu? Thanks in advance!

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