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• How to get HP ASM to work under Xen Hypervisor?

  - by Dennis

  I have a HP DL560, currently running Debian Squeeze as dom0 on Xen Hypervisor, and the fans constantly run at 100%. In the past this wasn't a problem because I could install HP's ASM which includes fan management. However since I have installed a xen enabled kernel, the hp-health driver (the piece of ASM that controls the fans) won't start (at boot or manually). Anyone know of any way to make it work? (Or any other method of controlling the fans safely.) Note that the server has four i386 Xeon CPUs, each with its own fan, plus an extra case fan, and all of the fans can be doubled for redundancy. Also everything works fine under Squeeze without the xen-enabled kernel (can still boot the other one and hp-health loads fine on boot).

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• Wyse Z Class Thin Client (WES7) Image Deployment

  - by nsr81

  We are currently working on deploying a few Wyse WES7 thin clients (Z Class, exact model escapes me at the moment). We have WDM setup, and are able to see new clients show up, interact with them, pull/push images. Our current workflow is something like this: Unpack & boot up the device Disable Windows Firewall, reboot Device shows up in WDM Publish our custom image to the new device. My question is whether or not there is a way I can bypass step 2, and put my image on the client right out of the box. Either using PXE or USB boot disk, such that I can boot into some sort of menu and tell the client to pull a particular image from the WDM server. With HP thin clients, we have a rule setup which detects new clients on the network and pushes our custom image to them first time they show up. I haven't been able to figure it out with Wyse.

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• Kubuntu 9.10: LUKS-encrypt entire partition

  - by Adam Matan

  Hi, In older versions of Ubuntu, mainly 8.04, I could encrypt en entire partition using LUKS, and mount it as /. the /boot directory was mounted on another partition. At boot time, I had to enter my password to enable any access to anything other than /boot. In Kubuntu 9.10, I only have the option to encrypt my /home/adam directory, which is a bit of a problem for me because I have sensitive data located in other directories. Any ideas how to set up LUKS for the entire disk, preferably during installation? Thanks in advance, Adam

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• Eee PC - Create USB Recovery Drive w/ Files Copied From Recovery Partition

  - by nedm

  I have an Eee PC 1005HAB whose hard disk has failed. I have no recovery CD/DVD, but I did previously back up the contents of the recovery partition, and would like to use them to create a bootable USB to reinstall the factory settings on the new hard drive. Since I simply copied all the files in the recovery partition, rather than hitting F9 during boot and running through the process to create a recovery disk or drive, how do I now use the files to create a bootable USB drive that will do the recovery? In the BIOS I have disabled boot booster and set external drives to the top of the boot priority, but simply copying all the recovery partion files to a usb doesn't allow it to be booted from. I've downloaded the HP utility for creating bootable USB drives and have tried using it to make the USB drive bootable, but I'm not sure what to do with the ghost image and utilities from the recovery partition to get the process to start properly. Thanks in advance for any help.

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• Device cannot be added on software-raid-1 array on Ubuntu 12.04

  - by George Pligor

  Unfortunately all tutorials I have found online until now on how to setup software-raid-1 are outdated on ubuntu 12.40 My target is to setup it on a system with a secondary disk drive that is already running. Format is not an option! I am trying to follow and adapt from 11.10 to 12.04 the following tutorial: http://www.howtoforge.com/how-to-set-up-software-raid1-on-a-running-lvm-system-incl-grub2-configuration-ubuntu-11.10-p2 On the above tutorial there is a successful command which creates a raid-1 array by setting the first disk drive with the installed system as missing: mdadm --create /dev/md0 --level=1 --raid-disks=2 missing /dev/sdb1 But when the time comes to add the first main drive with the installed system on the raid-array with this command: mdadm --add /dev/md0 /dev/sda1 I receive an error message. The error message says that the device /dev/sda is (which makes sense) busy! Note: hardware raid solution is not available since the system is a laptop with two disk drives! Thank you

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• How to recover bitlocker encrypted partition that is now 'unallocated'/'free space'?

  - by Atishay Jain

  My hard drive had 5 partitions(including 1(some 4-5GB) bit locker encrypted one). When I used disk mgmt I could view 2 partitions(24.4GB and 8.94GB) in green colour labeled Empty space. So, I wanted to merge them and I used minitool partition wizard for the purpose. I don't know, what that software did, but all I was left with 2 partitions and lots of green free space. I recovered 2 partitions using EaseUS partition master, but the bitlocker encrypted partition cannot be searched by it(and also minitool partition recovery). Now, the disk mgmt shows 2 free space partitions of 28.36GB and 8.94GB respectively. Here is a screenshot http://s14.postimage.org/4tvij041t/Screen_Shot003.jpg Please, tell me a way to recover the bitlocker encrypted partition that is showing as a free space in disk management. P.S. - It contains very important data.

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• Do different operating systems have different read and write speeds?

  - by Ivan

  If I have two different operating systems, such as Windows 8 and Ubuntu, running on the same hardware, will the two operating systems have different read and write speeds? My guess is that there would be minimal difference between operating systems and read and write speeds to the hard disk since the major limited factor is seeking; however, different operating systems may use different file systems in order to attempt to reduce seek time in the hard disk. Likewise, I'm sure that modern operating systems will not actually write directly to the hard disk, and instead will just have it in memory and marked with a dirty bit. Are there any studies that show differences in read and write speeds between OSs? Or would the file system being used by the OS matter more than the OS itself?

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• Cannot add VMDK to VM that was cloned with FlexClone

  - by Daniel Lucas

  I have a virtual machine called VM-A with two VMDK's on volume VOL-A. Call these VMDK-1 (system) and VMDK-2 (data). I want to clone VMDK-2 and attach that clone to VM-A as a new disk, but I'm getting an error. Here are my steps: I use the following command to clone : clone start /vol/VOL-A/VMDK-2 /vol/VOL-A/VMDK-3 Run clone status which shows successful and I can see the new file in the volume In vCenter I edit the settings of VM-A and try to add VMDK-3, but get the following error: Failed to add disk scsi0:4, Failed to power on scsi0:4 I've tried adding this cloned disk to other VMs and get the same error. What could be the issue? My specs are below. NetApp FAS 2040 Data ONTAP 8.0.1 vSphere ESXi 4.1 vCenter Server 4.1 Thanks, Daniel

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• Kernel Panic - Not Syncing: Fatal exception

  - by user3513346

  Server (HP Proliant D320e G8 v2) froze at this screen during boot today (running CentOS 6.5): I was able to get the server to boot after a 'press and hold'. I've been having many problems with the server lately - mainly related to the iLO and being unable to install CentOS 7. Could someone please help me decode this screen? Does it suggest there could be a serious problem? Or does this just happen sometimes? It is possible that the OS wasn't 'shutdown' properly before the failed boot.

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• ubuntu automount: only mounting drives as root?

  - by glisignoli

  I'm sharing the /mount dir with smb so users on my network can access use drives added to my linux box. Users are able to read files but not write, modify or delete files or directories. I'm using ubuntu 10.04 server edition with halevt installed for usb auto mounting. Afaik halevt is automounting the drives to /media/ but the drives are showing up as: drwxrwxr-x 1 root root 20480 2010-12-29 20:40 disk drwxrwxr-x 1 root root 24576 2010-12-21 17:20 Sparta mount gives me: /dev/sda1 on /boot type ext2 (rw) /dev/sdb1 on /media/disk type fuseblk (rw,nosuid,nodev,sync,allow_other,blksize=4096,default_permissions) /dev/sdc1 on /media/Sparta type fuseblk (rw,nosuid,nodev,sync,allow_other,blksize=4096,default_permissions) When I umount the drives, the folders /media/disk and /media/Sparta are both removed. I tried changing the permissions with chown to nobody:nogroup but it doesn't work (which I assume is because they are ntfs drives).

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• Improving terminal server performance for a specfic app

  - by Matt

  We have a windows 2003 terminal server running 2X application load balancign that is hosting a client's application that is accessed by around 50 users. Each user has there own database. The database is a file based database. The application is developed under Delphi so I think the database may be BDE based. As you can imagine, there is probably quite a lot of disk i/o. Here are some of the perfmon settings. Logged in users (average) 20 - 25 CPU Utilization (average) 80 - 100% Disk Queue Length (average) 1.6 % Disk time (average) 111 Page faults/sec (average) 1400 The application takes on average about a minute to load up. As usual, the budget is tight. Is there basic windows performance tuning tips that people can recommend to improve things before we fork out on more RAM etc. Server is a 2.8GHz Xeon with 3GB of RAM.

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• Can't Shut Down computer with windows 8 Release Preview

  - by Bram Winda

  I downloaded Release Preview and installed it. I have a problem when I shut down the computer. After I press windows key + I Power Shut Down, a box pops up titled "Winlogon.exe - No Disk. Then under that is the message "There is no disk in the drive. Please insert a disk into Drive G". After hitting the retry button a couple of different times the screen finally goes dark. When I was going to turn it back on, I noticed the Power Button was still list. The only way to do a complete Shutdown is to hold in the power button directly. How do I fix this problem?

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• HFS for Windows by Paragon BSOD

  - by texmex5

  Installed HFS for Windows 7 yesterday. Did a reboot. Copied some files from my internal drive to external hfs drive. Did another reboot and rebooted to Mac. Mac worked fine. Then yesterday the battery went dead on my mac and the computer switched off. This morning tried to boot into windows but got a BSOD as soon as I moved my mouse in the login screen. BSOD refeers to an error with service HFSPLUS.SYS Now when I try to boot into mac (pressing alt while restarding) the mac drive isn's shown and I can only boot into Windows 7 Safe Mode. Cannot uninstall HFS for Windows the uninstaller in control panel says: "THE WINDOWS INSTALLER SERVICE COULD NOT BE ACCESSED. THIS CAN OCCUR WHEN WINDOWS INSTALLER IS NOT CORRECTLY INSTALLED". SETUP: Intel Core 2 Duo, P8600 @ 2.40GHZ, 4GB RAM, WINDOWS 7 ULTIMATE 32 BIT

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• Complete refresh of the OS - windows 7.

  - by Vael Victus

  So, the girlfriend's got a virus, and it's pretty nasty. I don't have the time to mess around with it, and she's not so bad with computers, but this is out of her league. (considering her idea of fixing the problem was to download a virus scan that was malware itself) I think I remember hearing that it's possible to put in some restore/recovery disk that comes with the computer to bring Windows back to the way it was originally right from the factory. The problem is, I bought that computer off the shelf - literally - and I don't think I received a disk, or if I had, it's probably gone now. Do you guys have any idea what I could do? I'm all for reformatting, it's just a toy PC for her. I just don't have a disk to re-install windows 7 with.

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• How can you make a Windows USB HDD Modify All for All Users

  - by David Allan Finch

  Hi, I use a USB HDD a lot between lots of different Windows Boxes. What I find after a while is that there get to be lots of different Permission on the files in some cases stopping me looking at files or removing them. They want Admin rights or even sometimes you need to put the disk back into the original machine with the original user. This is a right pain. Is there away of making the disk have Modify All for All Users and making this the default for all files on the disk. Thanks

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• Why is (free_space + used_space) != total_size in df? [migrated]

  - by Timothy Jones

  I have a ~2TB ext4 USB external disk which is about half full: $ df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sdc 1922860848 927384456 897800668 51% /media/big I'm wondering why the total size (1922860848) isn't the same as Used+Available (1825185124)? From this answer I see that 5% of the disk might be reserved for root, but that would still only take the total used to 1921328166, which is still off. Is it related to some other filesystem overhead? In case it's relevant, lsof -n | grep deleted shows no deleted files on this disk, and there are no other filesystems mounted inside this one.

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• Restoring factory image of HP Laptop

  - by Ahmed

  I use a HP G62. I am unable to use my recovery disk to restore to factory settings. I had no problems earlier until I created an additional partition which I hear might have changed my hard disk to dynamic. How do I get back to 'normal'? I don't mind formatting the disk. I just want my factory OS back. .............. i get an error message at about 69 percent telling me that the restoration process failed. I'm using the factory image disks i created using the hp recovery manager. I have tried formating the hard drive clean and then restoring woth the cd, it didn't work. I was always able to restore before i created that partition.

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• GRUB Problem or Hardware Problem?

  - by Nikit Batale

  I have Windows XP Professional and Ubuntu Karmic Koala 9.10 on dual boot. I often get a GRUB loading failed error during boot-up. Or sometimes, when I try to boot into either Ubuntu or XP, I get a Could not read from source error. Now this is funny. After getting one of the above errors, if I simply unplug the SATA cable from Hard Drive end and plug it again, the problem gets solved. So what and whose problem is it? GRUB or My Hardware ? P.S.: I was suggested on StackOverflow that ServerFault is the right place for this question.

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• VirtualBox - split partitioned VDI into separate VDIs

  - by mathematical.coffee

  I'm very new to VirtualBox. I set up an Arch Linux VM and a Ubuntu VM (Ubuntu host), both sharing the same .vdi like so (I had in my mind a dual-boot situation): VDI file (25GB) |- /dev/sda1: 5GB (Arch Linux) |- /dev/sda2: [Ubuntu] |- /dev/sda5 (swap, 1GB) |- /dev/sda6 Ubuntu /, 9GB |- /dev/sda7 Ubuntu /home, 10GB I've now realised that I don't want a dual-boot-type setup, I'd rather boot each machine independently (my initial thought was to share /home between Ubunto and Arch). So, my question: Can I split /dev/sda1 and /dev/sda2 each to their own .vdi files so I can use them as completely separate machines? I'd rather not have to re-install either Arch (because it took me ages to work it out!) or Ubuntu (because I've already done a few GB of updates and don't want to redo them). I haven't been able to find anything about this - most questions I see are about converting a .vdi to a partition on the host, or splitting a .vdi into multiple smaller files (that are not independent), or converting a partition on the host to a .vdi file. cheers.

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• Error installing Arch Linux

  - by Garethj94

  So, I am trying to install Arch Linux on my Acer Aspire 4830tg, but I keep running into problems. Some background knowledge, I am trying to install Arch off a usb stick and I got the iso image using bittorrent. I am also trying to install it alongside of Windows 8 (which is already installed). So when I boot into Arch linux I get this error: :: Mounting '/dev/disk/by-label/ARCH_201212' to 'run/archiso/bootmnt' Waiting 30 seconds for device /dev/disk/by-label/ARCH_201212 ... ERROR: '/dev/disk/by-label/ARCH_201212' device did not show up after 30 seconds... Falling back to interactive prompt You can try to fix the problem manually, log out when you are finished sh: can't access tty; job control turned off I know that it will work if I run it on a virtual machine but whenever I try to install it on my laptop I keep getting this error. And since you can't register for the Arch forums without a Arch terminal to run their captcha command I can't ask this on their forums.

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• Restoring a Ubuntu Linux LVM drive

  - by user848106

  Scenario: I have a hard disk with a bootable sda1 partition and an Linux LVM. I seem to have corrupted the MBR? or Grub? not sure. I know it no longer boots and even with boot-repair and a Ubuntu live usb I was able to restore it. Following a "fix" with boot-repair I get "missing operating system" Can't i just reinstall grub or a new menu.lst? Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders, total 625142448 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: 0x0007b68f Device Boot Start End Blocks Id System /dev/sda1 * 2048 499711 248832 83 Linux /dev/sda2 501758 625141759 312320001 5 Extended /dev/sda5 501760 625141759 312320000 8e Linux LVM

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• Should I use SSD Caching on non bootable HD?

  - by Onema

  I have an asus 9p79x pro which allows me to do SSD Caching. I have a 256 GB SSD drive that I use an my primary boot drive, and I have a 1 TB disk where I put most of my games, music, videos, dowloads, pictures, etc. I also have an extra 64 GB SSD Drive that I'm currently not using. I thought it would be a good idea to use it as my 1 TB disk cache and improve the load time of games and programs that are installed on the 1 TB disk; but will this work correctly? It seems from all that I have read online about this board that it is used to cache a boot drive. Any thoughts? Thank you

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• I want to change hard drive. How to move system partition with Windows 7?

  - by Semyon Perepelitsa

  I've bought a new hard drive and want to move all my data to it. I had no problem with moving all files on non-system partition. But I don't know how to move system partiton. Now I have 3 partitions on the new disk, fist two was created by Windows installation CD (I tried to move system using internal tools, but it didn't work for me), third is filled with my successfully transferred data from old disk. And there are two partitions on the old disk: the first one is system (Windows 7) and the second one is my old main storage, that I already moved to the new hard drive and now it is empty. How can I change the placement of Windows 7 with minimal difficulties and losses, so I could work on the new hard drive just as I did it on the old one?

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• OS X 10.6 Snow Leopard no longer mounting an external USB drive

  - by Brant Bobby

  I have a 1TB generic external hard drive containing a single HFS partition. I originally formatted this using Disk Utility and it worked fine. Now, for some reason, it's not auto-mounting when I start up. Using mount at the command line gives the following error: $ sudo mount /dev/disk1s2 /Volumes/Test /dev/disk1s2 on /Volumes/Test: Incorrect super block. ... but if I use the mount_hfs command it works fine, mounts, and is readable. $ mount_hfs /dev/disk1s2 /Volumes/Test/ fsck gives me an error about a bad super block: $ fsck /dev/disk1 ** /dev/rdisk1 (NO WRITE) BAD SUPER BLOCK: MAGIC NUMBER WRONG ... but fsck_hfs -fn /dev/disk1s2 doesn't find any problems and reports that the volume appears to be OK. In Disk Utility, the drive appears to have a single MS-DOS partition with a curious notice about how it appears to be partitioned for Boot Camp: I have the Boot Camp HFS driver installed in WIndows 7, and that OS sees the drive/partition normally. What's wrong with my disk?

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• How to reset mac PRAM through the command line in Lion/Mountain Lion?

  - by boneyjellyfish

  I'm trying to write a script to automate a PRAM reset and I've seen a lot of old guides that tell me to use the following command to reset the Mac's PRAM via the terminal: nvram boot-args="-p -r" But this command doesn't seem to work anymore, at least not on any of the computers I've tried it on. I'm trying to find a more up-to-date list of available boot-args and I was able to find this question about boot-args strings but there doesn't seem to be anything in there or any of the links about resetting the pram. Any ideas?

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