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• Installing Windows 8 over Windows 7 with Ubuntu installed using wubi (both on `C:\`)

  - by peat-ar

  Current state I'm using both - Ubuntu (installed via Wubi on the same drive as Windows) and Windows 7 - quite frequently. I just bought the upgrade to Windows 8 and was curious to try it out, however I'm quite insecure whether Windows 8's "secure boot" will exclude my current Ubuntu installation and if it's even possible to keep it. So... is there any way to upgrade to Windows 8 without overwriting Ubuntu? (I really don't want to reinstall it, as a lot of customization has been done here and taking backups and all would get pretty wearing (same case for Windows 7 - if possible, I'd like to keep my files)) This is not a dublicate of Installing Windows 8 over Windows 7 with Ubuntu installed using wubi? because this question only deals with the case when Ubuntu has been installed on (e.g.) D:\ (while Windows is being installed on C:\)

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• ignore ipv6 router advertisements for static addresses with bonded interfaces

  - by boran

  I need to attribute static IPv6 addresses (not use autoconfigured addresses, and ignore router advertisements). This can be done as follows for a standard interface like eth0 iface eth0 inet6 static address myprefix:mysubnet::myip gateway myprefix:mysubnet::mygatewayip netmask 64 pre-up /sbin/sysctl -q -w net.ipv6.conf.$IFACE.autoconf=0 pre-up /sbin/sysctl -q -w net.ipv6.conf.$IFACE.accept_ra=0 However, how can this be done for bonded interfaces? using the "all" interface does not work. Systems is Ubuntu 10.04, 2.6.24-24-server. If one uses the above sysctl command for the bond0, the networking hangs on boot, because /proc/sys/net/ipv6/conf/bond0 does not yet exist and cannot be written to. One the system has booted /proc/sys/net/ipv6/conf/bond0 exist, so one solution after booting is to add the following to /etc/rc.local: /sbin/sysctl -q -w net.ipv6.conf.bond0.autoconf=0 /sbin/sysctl -q -w net.ipv6.conf.bond0.accept_ra=0 /etc/init.d/networking restart and this has the desired effect, the autoconfig v6 address disappears. Seems like a bit of a hack though, are there better solutions?

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• /var/lib/ureadahead/debugfs using up disk space

  - by Keyo

  Running Ubuntu 10.04 and nearly all my drive space is gone. # df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/ubuntu-root 7.3G 6.6G 327M 96% / none 245M 240K 244M 1% /dev none 249M 0 249M 0% /dev/shm none 249M 340K 249M 1% /var/run none 249M 0 249M 0% /var/lock none 249M 0 249M 0% /lib/init/rw /dev/sda1 228M 34M 183M 16% /boot Of course it's not mounted. I read that chmod 0 /sbin/debugfs could fix the problem, but now it just won't mount despite changing the permission to 777. This is a VM running on VirtualBox. I have done a file system check which ran fine. What is this directory and how can I remove it from the system?

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• Need to get a file written to a floppy.

  - by dboarman-FissureStudios

  I asked this question over on SO. I have tried dd if=kernel.sys of=/dev/fd0 bs=512 seek=1 to get this file to write to the floppy. It is a kernel shell that must be written to the sector immediately following the bootsector of a disk to boot the PC. No matter what I've tried, for some reason, kernel.sys is not writing to the floppy. I know the bootstrap loader is being written and executed. However, it cannot find the kernel to load the shell. Any ideas on what I am doing wrong? I mean, really, how is it so difficult to get this file written to a floppy? OpenSUSE 11.2

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• hdd fail, allows format, allows copy

  - by Bogdan

  Hello I have a problem with a Fujitsu laptop. Some kid played with it and now the hdd is a wreck. I can't install Windows XP, Windows 7 or Linux. I checked with hiren's boot for bad sector did a chdisk on it says I don't have any bad sectors, on smart says is active but status error. I tried format and it worked, I tried copying files using a live CD and it worked, but when I try to install the OS it says it can't format, or it can't copy files.

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• What should I know before I set up RAID 6 on Linux?

  - by Dan Ellis

  I just ordered five 1TB drives to install as a RAID 6 array in a Linux server (keeping the existing 1TB drive as a boot disk). I want to use Linux MD for RAID rather than a RAID card, to avoid lock-in. The intended use is for storing filesystems for Xen development environments and an AFP server for iPhoto/Aperture/Lightroom. What things should I know before I set it up? For example, what would be a good choice of filesystem, and what chunk size should I use?

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• Ubuntu not installed-Please Remove installation media and close tray and press enter

  - by Ram

  I have downloaded Ubuntu 12.04.1 LTS 32 bit, burned it on DVD and tried to install it on my PC. My PC is running in Windows 7 Ultimate 32 bit mounted on the C: drive. Now I want install Ubuntu along with my Windows 7. When I boot Ubuntu through the CD, It boots and the Ubuntu install windows opens It offers "Try Ubuntu" and "Install Ubuntu". I choose "Install Ubuntu" Then I go on to install Ubuntu with Windows(First Option)-install It shows some blank screen with some lines, and says "Please Remove installation media and close tray and press enter" Then the PC restarts and runs Windows 7 same as before normally. But Ubuntu is not installed. How to solve this problem and install Ubuntu on my PC properly? Note: I am an Android Developer. So I need to install Ubuntu for my Android Development purpose.

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• Connect to virtual host computer from within virtualbox

  - by Nicky De Maeyer

  I'm currently developing on an ubuntu karmic. For this I've installed lampp with a virtual host on apache so http://myproject/ is mapped to my project's root directory. Now to test the website in IE I've installed an XP machine on a virtualBox OSE. Ive managed to get the virtual host working on the XP by adding its to the hostfile, like this: 255.255.255.255 myproject where 255.255.255.255 is the ip adress of the host computer (my ubuntu). Now every day when I come to work and plug in my computer to the network, my IP has changed. so When i boot the XP I have to change the IP in the hostfile to my new IP. Is there any way where I can set the ip to somthing the XP will recognise as the host machine? I've tried replacing the IP in the hostfile by the host computer name, but that does not seem to work... This would make my like a bit easier :)

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• df shows partition as full, but du shows it as only 25% full

  - by Jakobud

  I have a humble linux server to do some stuff for me. I only have an old 16gig drive in it. df -h Filesystem Size Used Avail Use% Mounted on /dev/md1 16G 16G 0 100% / /dev/md0 121M 14M 101M 13% /boot tmpfs 502M 0 502M 0% /dev/shm but when I do: du -sh / 3.5G / So one says that my 16G drive is full. The other says only 3.5G is used. Why the discrepancy? I cannot write any new files as it says the drive is indeed full. But if I can't find the files taking up all the space on the file-system, how can I delete them to free up space?

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• Linux and ClickPads

  - by John

  I just got my Arch / Windows 7 dual-boot setup running... except for one thing. I have an HP dv6-3127dx laptop, which is an issue when it comes to Linux because it does not have a traditional touchpad, but a "ClickPad." This means where the left and right buttons exist, it is also sensitive to moving the pointer. The issue comes in when I try to steady the mouse with one finger, while clicking the left click with another, because the mouse freaks out. It's also an issue because it's not recognizing the right click whatsoever. I am currently using the default Synaptics drivers downloaded from pacman on Arch Linux, running Linux v2.6.36. EDIT: The question of course is, how can I fix this?

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• How to increase virtual hard drive space

  - by Chris

  I have a Microsoft Virutal PC hard drive (.vhd format) that's maxed out it's 16 gig hard drive space. What would be the best way to increase this diskspace? Booting into the machine (windows xp professional) and using the disk management snap in, I can see that the virtual drive has approximately 40 more unused gigs of space. Trying to use diskpart, I find out that Windows XP can't extend the boot partition. So I'm at an empass, any suggestions on how to increase the partion or to increase the actual virtual hard drive would be great. Note: The virtual hard drive is running on Windows 7 using XP mode.

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• Windows shuts down unexpectedly when waking up from sleep

  - by Kush

  I've been facing this issue since yesterday, whenever I put the computer into sleep mode and when I wake up, it takes me to boot menu with choices; start Windows normally, safe mode, etc. in short, it shuts down unexpectedly while waking up. I have my laptop dual booted with up-to-date Windows 7 SP1 (32-bit) and Ubuntu 10.10. This problem is not happening with Ubuntu. I googled the issue and went through this, this and this page. But, none of the threads were helpful to solve it. I've found that there's something to do with device drivers. What can be done to resolve the issue? Can SFC utility solve it if it is due to corrupt system files?

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• The bcdedit export operation fails. windows vista not booting.

  - by ocurro

  I'm fixing my boot record with bootrec.exe, the first command goes: C:\>bcdedit /export c:\BCD_Backup Immediately I receive this error here: The store export operation has failed. The requested system device cannot be found. Likewise, the next command fails, because bcd file is missing: C:\>attrib bcd -s -h -r Lastly, when trying the next command, all it returns is "The requested system device cannot be found". C:\>bootrec /RebuildBcd I'm using Windows 7 setup image to operate. Have Vista installed atm. Has it happened to you? I'd appreciate some orientation.

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• Set-and-forget Windows backup software with NAS-support?

  - by Evert

  Hi all, I am looking for set-and-forget backup software for Windows (Vista & 7, and if possible XP/2003). The idea is that it runs in the background on the clients, and does its thing towards a network-share. In case the HDD of one of these clients spontaneously combusts, all I want to have to do is: replace the drive, insert a USB-stick, boot from it, and restore the machine. It should support drives which use [ICH]-RAID. What are my options here? It looks like WHS meets all the requirements, but I am curious about my other options here.

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• What are "Missing thread recordng" erros when running fsck -fy ?

  - by Horace Ho

  There is some error reported when I run Disk Utility and verify the root volume on my OS X MacBook. So I boot and CMD-S into the shell mode and run /sbin/fsck -fy. Errors are like: ** Checking catalog file. Missing thread record (id = ...) In correct number of thread records ** Checking catalog hierarchy. Invalid volume file count (It should be ... instead of ...) ** Repairing Volume Missing directory record (id = ...) I'd like to know what is the cause of the above errors? Hopefully I will be more careful in the future to prevent them from happening again. p.s. I am using a SSD and so I assume mechanical hard disk error is less likely. Thanks!

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• What are "Missing thread recordng" erros when running fsck -fy ?

  - by user32616

  There is some error reported when I run Disk Utility and verify the root volume on my OS X MacBook. So I boot and CMD-S into the shell mode and run /sbin/fsck -fy. Errors are like: ** Checking catalog file. Missing thread record (id = ...) In correct number of thread records ** Checking catalog hierarchy. Invalid volume file count (It should be ... instead of ...) ** Repairing Volume Missing directory record (id = ...) I'd like to know what is the cause of the above errors? Hopefully I will be more careful in the future to prevent them from happening again. p.s. I am using a SSD and so I assume mechanical hard disk error is less likely. Thanks!

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• Alternative to Windows Home Server (WHS) backups

  - by Adam Tegen

  Since Microsoft announced the end of life for WHS, are there any alternatives? Specifically, I am interested in recovering from a catastrophic disk failure with WHS. For example, this is my ideal scenario when a desktop hard-drive fails (has a bad virus, etc): Install a disk of the same size or greater Boot the desktop with the Recovery Disc Point the recovery application at the WHS Pick the machine, the drive(s) and the date of the backup Have a couple beers Reboot to a working machine as if nothing happened. I would need to slap multiple disks in the machine without raid. It sounds like LVM will work here. It would be nice, but not required to have de-duplication of files when multiple machines are backed up. (Single Instance Storage)

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• Help creating image from LVM

  - by jackhab

  I need to duplicate CentOS hard drive image for multiple stations. The HD has the following layout: Disk /dev/sdb: 250GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 32.3kB 107MB 107MB primary ext3 boot 2 107MB 250GB 250GB primary lvm I saved /dev/sdb1 to file with fsarchiver but for sdb2 I get: /fsarchiver savefs an2.fsa /dev/sdb2 oper_save.c#1006,filesystem_mount_partition(): can't detect and mount filesystem of partition [/dev/sdb2], cannot continue. removed an2.fsa Although fsarchiver probe simple correctly detects sdb2 as LVM2_member. Is fsarchiver correct tool for this job? What's wrong? I'm on Ubuntu 9.1 with fsarchiver 0.6.8 and lvm tools installed. Thanks.

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• Help creating image from LVM

  - by jackhab

  I need to duplicate CentOS hard drive image for multiple stations. The HD has the following layout: Disk /dev/sdb: 250GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 32.3kB 107MB 107MB primary ext3 boot 2 107MB 250GB 250GB primary lvm I saved /dev/sdb1 to file with fsarchiver but for sdb2 I get: /fsarchiver savefs an2.fsa /dev/sdb2 oper_save.c#1006,filesystem_mount_partition(): can't detect and mount filesystem of partition [/dev/sdb2], cannot continue. removed an2.fsa Although fsarchiver probe simple correctly detects sdb2 as LVM2_member. Is fsarchiver correct tool for this job? What's wrong? I'm on Ubuntu 9.1 with fsarchiver 0.6.8 and lvm tools installed. Thanks.

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• Stop RAID 5 from Initializing

  - by Antz

  Hi, I am trying to follow Ictinike's guide on Recovering Intel RAID "Non-Member Disk" Error found here, Ictinike's RAID recovery Guide I have recreated my RAID array as per the instructions. However my RAID array status is then automatically set to: INITIALIZE When I boot back into my Windows XP desktop, the Intel Matrix Storage Utility begins to "Initialize" my drives. This is a long slow process that will take about 20 hours. I suspect all my data will be lost. I have gone back into my bios and disabled my RAID controller to prevent any further initialization and data loss. I have read that initialization will cause data loss. I've also read somewhere that it won't. I am not so confident in the latter. Is there anyway to stop this initialization process so I can continue to follow the steps in the recovery guide? Some system specs: ABIT IP35 Pro Motherboard ICH9R on board RAID controller

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• HP Envy 14, Ubuntu 10.10 and trouble with the graphics cards

  - by Carsten Gehling

  A few days ago I bought a HP Envy 14, containing 2 graphics card: An integrated Intel graphics card, and an ATI HD 5650. I've installed Ubuntu 10.10 32-bit on the machine. Most things work fine out of the box, but the graphics cards are giving me trouble. When booting, I get the message "failed to get i915 symbols, graphics turbo disabled". Then the screen blanks out during the remaining boot period. I am able to get the display working by changing to one of the consoles, then closing and opening the laptop's lid. It seems that Ubuntu gets confused about which card to use. I've read here: http://www.andreas-demmer.de/en/2010/07/18/testbericht-linux-auf-dem-hp-envy-14 that I should be able to turn off one the cards by echoing keywords into /sys/kernel/debug/vgaswitcheroo/switch, but that path is not available on my system. The BIOS does not have any methods to switch of the ATI card. Help anyone? /Carsten

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• HP Envy 14, Ubuntu 10.10 and trouble with the graphics cards

  - by Carsten Gehling

  A few days ago I bought a HP Envy 14, containing 2 graphics card: An integrated Intel graphics card, and an ATI HD 5650. I've installed Ubuntu 10.10 32-bit on the machine. Most things work fine out of the box, but the graphics cards are giving me trouble. When booting, I get the message "failed to get i915 symbols, graphics turbo disabled". Then the screen blanks out during the remaining boot period. I am able to get the display working by changing to one of the consoles, then closing and opening the laptop's lid. It seems that Ubuntu gets confused about which card to use. I've read here: http://www.andreas-demmer.de/en/2010/07/18/testbericht-linux-auf-dem-hp-envy-14 that I should be able to turn off one the cards by echoing keywords into /sys/kernel/debug/vgaswitcheroo/switch, but that path is not available on my system. The BIOS does not have any methods to switch of the ATI card. Help anyone? /Carsten

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• Gigabyte Motherboard + Adaptec RAID = No Booting from any drives

  - by Farseeker

  I have a brand new PC, just out of the box. It has a Gigabyte GA-P55-USB3 motherboard. I also have an Adaptec ASR-2504 SAS RAID card with 2x 15k Seagate Barracuda SAS drives attached. After the motherboard init's its on-board RAID it then init's the Adaptec RAID. It detects all the RAID devices OK, but when it gets to Loading Operating System... (i.e. right before it should load the OS) it just sits there forever, doing nothing: If I force it to boot from the optical drive, you see it spin up for a few seconds then die down again. If I remove the Adaptec RAID card, everything works perfectly. As soon as it's plugged back in, it never gets past that stage. The RAID card should be perfectly fine (it was before), but I have raised a case with Adaptec anyway. Any suggestions on what I can try to get these two to play nicely together?

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• Fedora12 Slow USB 2.0 Write Speed, ehci_hcd module is missing

  - by MA1

  I am using Fedora 12, the problem I am facing is USB 2.0 write speed. I have a dual boot system with Windows XP and Fedora 12. USB 2.0 write speed in Windows XP is much faster then what I am getting in Fedora 12. After searching Google I came to know that ehci_hcd module is missing/not present in my system. ehci_hcd module is neither loaded nor it is present in the available list of modules. Can someone guide me how to fix this issue? Does ehci_hcd have something to do with USB 2.0 write speed? Do I have to recompile the kernel and add/enable the ehci_hcd module?

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• RTL8168B/8111B Lan card is not detected in RHEL5.1..Not finding Lan card driver for this particular

  - by Deepak Narwal

  Hello friends... In My computer Lan card model is Realtek RTL8168B/8111B PCI-E GIGABIT ETHERNET NIC (NDIS 6.20) My system is dual boot windows 7 and redhat 5.1 Now windows 7 automatically detected this lan card but in redhat lan card is not detected.I have tried to through evrywhere like network or through neat-tui but it is not showing lan card.. I tried google also but all of them providing windows software for this lan card . So please anyone can tell me the link so that i can download drivers for this and can use internet there.. Thanks a lot in advance Deepak Narwal

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