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• Is it possible to fake a Windows install for grub to add to boot menu?

  - by Mussnoon

  When doing a fresh install of a Linux distro (Ubuntu, for instance) on a fresh hard drive, if I want to install Linux first, and Windows later, is it possible to make grub think there's a Windows install on the first partition so that it'll be added to the boot menu after the installation is complete? To illustrate, I have a new hard drive and have created two primary partitions (both still raw) and two logical (Ext4 and Swap). I want to install Ubuntu on the Ext4 partition first, and some version of Windows on the first primary partition only after that (because I currently don't have a Windows install disk, but do have one for Ubuntu). Is it possible to make Ubuntu add an entry for Windows right now and avoid having to repair grub after I've installed Windows?

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• Is my Windows partition too far down on the disk?

  - by Trevor Alexander

  I have /boot/ on /dev/sda1 (1GB), followed by my Linux root LVM on /dev/sda2 (1.3GB). Finally, I installed Windows 7 on /dev/sda3 in the remaining 700GB of space. When I select Windows 7 in the grub menu, I get something like the following error and am thrown to grub4dos: find --set-root --ignore-floppies --ignore-cd /bootmgr Error 15: file not found Unable to locate necessary tables for adjustment. None of the options in grub4dos return anything but the above error. I heard that 1TB is the upper limit for locating Windows 7 partitions; is this true? How can I fix the above?

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• Format an external hard disk

  - by Alex

  I am trying to format an external hard disk to FAT32 (I need it to work with some hardware that expects it to be in FAT32). When I am trying to format it via windows the only option I'm getting is to format it to NTFS. Another strange thing is that when I am trying to format one of my own partitions (on the hard disk that is running the OS) I can do it only in NTFS while another partition my OS can format in both NTFS and FAT32. What can cause such a behavior and how can I format the external hard disk to FAT32?

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• How could I easily pack a directory to an ext4 loop partition image?

  - by Alvin Wong

  I would like to pack the content of a directory into an ext4 partition image easily, without mounting a loop device. Background: I am building a version of Android which will mount system partitions as a loop device for ARM. Though I can create those partition images by hand using loop devices, it is very troublesome. I want to use an sh script to automatically do the work, and without needing to loop mount the dd-created image and use cp -rp. The best is to directly pack the files into an image file. Question: Is there any simple command-line tools without needing loop mount and root permission that can pack files into an ext4 partition image?

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• Hard Disk Space Changes

  - by Write.

  I am currently running on Windows 7 x64, and have observe that my hard disk space is acting a little weird. Currently, my harddisk has 3 partitions, C:, D:, E:. Previously, before I delete a huge folder (30gb of data) from my D: drive, my C: drive has about 1gb left, while my E: drive has about 5 gb left. After deleting the 30gb of data (from D: drive), my space in D: drive has been recovered (but not sure if it's fully recovered), my C: drive which only had about 1gb left increased to 3. While my E: drive which had 5gb left dropped to 1. I was wondering if it has something to do with the fragmentations and whatsoever I always hear about in harddisk. Has anyone encountered similar issues or have an explanation to why it could be happening?

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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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• CentOS default never fsck root partition on start up?

  - by wwwpanda

  Most documentation or sites will say use "tune2fs -l " to check if the system will do fsck on the system partitions on next boot, in particular, should look at "Mount count" and "Maximum mount count" values. However, I notice for default CentOS 5 or 6 installation, when I check against the root partition, I always noticed something like this from tune2fs output: ... Mount count: 91 Maximum mount count: -1 Last checked: Thu Oct 29 18:48:14 2009 Check interval: 0 (<none>) ... i.e. the max. mount count is set to "-1". That makes me wonder does it mean CentOS (or Red Hat) won't check the root partition at all? I check the fstab, the last number for root partition is still "1" as usual. If the OS does fsck the root partition during startup, how can I tell when (i.e. after how many reboots or when) will the OS will start fsck the root parition during startup?

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• recover files from encrypted home folder

  - by maskiepop

  I can't seem to find the answer to my questions -- hence my posting this here. 1) I have encrypted my home folder in LinuxMint 15 Cinammon x64. If I create images of LM's partitions via fsarchiver, how do I go about selectively restoring home folders, and files from the FS images? 2) I haven't done this yet; but can I restore another users home folder into another user; both unencrypted. Is that a fairly common thing to do in Linux/ubuntu? I mean is the process fairly straightforward? What if the home folder I want to copy over to another user is encrypted? Thx

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• partitioning problems

  - by Remus Rigo

  I had on my laptop a dual system (Ubuntu 11.04 and Windows 7) and someway the partitions messed-up. Windows stopped from booting, I just got a blinking cursor, but Ubuntu worked fine. I tried to fix the windows boot (fixmbr, fixboot, bootsect /nt60 C:/....) but now grub was overwritten and I have no OS. Finally I formatted the hdd (low format), installed Windows, partition hdd with paragon partition manager and now I want to install Ubuntu, but Ubuntu sees an empty hdd, weird, can anyone tell me what can I do? EDIT: I have created: partition 1: 100MB ntfs - windows reserved (drive B) partition 2: 50GB ntfs win 7 (drive C) partition 3: 50GB ext3 linux partition 4: 'the rest' ntfs for data (drive E) (the swap i will create after)

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• What can I do to give some more love and disk space to my database on Ubuntu?

  - by Yaron Naveh

  I'm new to linux. I've deployed a db to ubuntu server on amazon and found out I'm low on disk space. did df (see below) - and found out that I'm 89% capacity on one file system, but less on others. What does this mean? Do I have a few partitions and can now utilize others besides /dev/xvda1? Also /dev/xvdb seems large, is it safe to put the db in it and only use it? If so do I need to mount it or do something special? $> df -lah Filesystem Size Used Avail Use% Mounted on /dev/xvda1 8.0G 6.7G 914M 89% / proc 0 0 0 - /proc sysfs 0 0 0 - /sys none 0 0 0 - /sys/fs/fuse/connections none 0 0 0 - /sys/kernel/debug none 0 0 0 - /sys/kernel/security udev 3.7G 8.0K 3.7G 1% /dev devpts 0 0 0 - /dev/pts tmpfs 1.5G 164K 1.5G 1% /run none 5.0M 0 5.0M 0% /run/lock none 3.7G 0 3.7G 0% /run/shm /dev/xvdb 414G 199M 393G 1% /mnt

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• No option for keeping installed programs when upgrading Windows 7 to Windows 8

  - by Nison Maël

  (Related : How can I upgrade from Windows 7 to Windows 8 and keep my files and applications? ) I'm trying to upgrade my Windows 7 Pro (msdnaa) to Windows 8 Pro (msdnaa). The Windows 8 is the final version (I don't have access to previews on msdnaa anymore). As you can see on the related question accepted answer, Windows 8 should give an option to keep installed programs. But it does not. The only available options are "Keep only personal datas" and "Nothing". Any idea ? I'm running with SP1. I've got two partitions (one of them only contains data of a virtual machine). The two operating systems have the same architecture (64 bits). Screenshot:

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• Linux Disk Setup for VMs

  - by zjherner

  Been trying to find the ideal way to setup disks/partitions for Linux guests on ESXi. Seems as though Linux is falling behind when it comes easily adding disk space. The end goal is to be able to add disk space to a Linux server without rebooting the server or taking the server offline. Ideally, I would expect adding disk to a Linux machine should be as easy as adding disk space to a Windows machine. I expand the vmdk file from vSphere Open disk mangler find the disk and extend volume. Would have to use command line tools in linux which is no big deal, but I haven't been able to find a solid way to exand filesystems on the fly. What is everyone else using for disk setups on their linux guests? Has anyone been able to acheive adding storage space to linux without downtime? Can it be done without using lvm?

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• Adding a single 300Gb SCSI drive to poweredge 2850

  - by John Steele

  I have a 2850 setup with 3 146Gb drives, two partitions 1 12GB system with server 2003 sp2 and 1 261Gb Data. I am strapped on disk space on the data partition having to push data around. I wanted to add a 300Gb single drive for lesser critical data, is this possible? Or is it best to add 2 300Gb drives for another RAID 1 configuration? This is my church network and while it is mission critical it is not enterprise so I can take it down for a few hours. Any pointers to documentation or direct help would be greatly appreciated. John

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• Lazy umount or Unmounting a busy disk in Linux

  - by deed02392

  I have read that it is possible to 'umount' a disk that is otherwise busy by using the 'lazy' option. The manpage has this to say about it: umount - unmount file systems -l Lazy unmount. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. This option allows a "busy" filesystem to be unmounted. (Requires kernel 2.4.11 or later.) But what would be the point in that? I considered why we dismount partitions at all: To remove the hardware To perform operations on the filesystem that would be unsafe to do while mounted In either of these cases, all a 'lazy' unmount serves IMHO is to make it more difficult to determine if the disk really is dismounted and you can actually proceed with these actions. The only application for umount -l seems to be for inexperienced users to 'feel' like they've achieved something they haven't. Why would you use a lazy unmount?

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• Drobo not mounting. Disk repair doesn't work either.

  - by kohei

  Hi, While transferring data to my 2nd gen Drobo power went out. Now my Drobo is not mounting to my OS X 10.6.3 I have tried Disk Repair and this error message appears: Verify and Repair volume “disk1s2” Checking Journaled HFS Plus volume. Invalid key length Invalid record count Catalog file entry not found for extent The volume could not be verified completely. Volume repair complete.Updating boot support partitions for the volume as required.Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files. I tried DiskWarrior too but it doesn't work either. It gives me that I need more memory to continue and software shuts down. Any one know solution to this one?

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• How to recover deleted files?

  - by vijay.shad

  Hi My laptop has two os. one is windows vista. and other is Ubuntu. I am currently on ubuntu system, this is my primary OS. There are 4 partitions of my hard disk Windows OS Linux(Ubuntu OS) Data Now the problem part. The data partition is NTFS. I have mounted this partition on the location /media/windrive-a under ubuntu OS. A little while back i decided to delete the mounting of the data partition and i fired command rm -r /media/windrive-a/. To give me a shock; all my data on data drive is gone. Now, I know this is not the command to remove mounted partition. But I have committed the wrong. Is there any way i can get my data back. These are very important data for me. Please suggest.

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• baffling stat pauses - (reiserfs)

  - by Twirrim

  I've got a SuSE server with reiserfs formatted partitions, all on a RAID1 mirror. I'm noticing odd spikes in iowait, but generally all seems okay. iostat claims not even 3% iowait in general: avg-cpu: %user %nice %system %iowait %steal %idle 6.53 0.03 1.45 2.92 0.00 89.07 After tracking down some odd behaviour when ls'ing, it appears "stat" (ls is aliased to include color which does a stat process on each file) randomly takes 5 seconds on a file in the directory. ReiserFS does a file system sync every 5 seconds, but that's interval between not length of time taken to sync. Out of curiosity I did remount using noatime to see if that would help though as it would reduce sync's workload, but no joy. Anyone got any thoughts what might be causing this pause? Disks appear healthy, RAID controller believes the RAID is healthy, and io stats show the disks aren't working very hard at all.

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• Can i enlarge os c drive of my windows 8? [migrated]

  - by Sorgatz

  Last year I got a new Western Digital WD Blue 500GB HDD to replace my old drive. The first thing I did was to install latest Windows 8. While installing Windows 8 I created 3 partitions, C drive for the OS and others for storage. The OS partition is 120GB (which at the time I thought would be plenty big) but I'm now realizing its too small! I wonder if it's possible to re-size HDD partition without reformatting and re-install my Windows 8. So that is my question, Can i enlarge os c drive of my windows 8 without having to re-format? I've used the Norton Partition Magic and Disk Management to make this happen but there doesn't seem to be any options to make it happen. Thanks for any help you guys can give regarding my question. I've worked hard to optimize my current install of Windows 8 and would hate to start all over again.

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• Resize primary partition

  - by telebog

  I have a hdd with the folowing partition table 12Gb Primary Partition (ntfs) 140Gb Extended Partition (ntfs) I want to install windows 7 and I need more space for the Primary Partition. The problem is that when I resize partitons I obtain: 12Gb Primary Partition (ntfs) 110Gb Extended Partition (ntfs) 30Gb Free Space So I can't allocate the free space to primary partition because the free space is at the end of the disk. Is there a solution to extend the primary partition as: 42Gb Primary Partition (ntfs) 110Gb Extended Partition (ntfs) without repartitioning the entire disk? I used partition magic, gparted-live-0.4.6-4 and others with no success. With the Disk Management from Vista I manage to extend primary partition, but made my partitions dinamic.

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• Format as NTFS without Journal

  - by palswim

  I have a flash drive that I'd like to format for use in Windows. I would like support for symbolic links, so I can't use FAT/FAT32/exFAT. I would prefer to use the ext4 filesystem and disable journaling, with the Ext2Fsd filesystem driver, but have (so far) found that I can't make soft links across filesystems that Windows will read, Ext2Fsd has an annoying bug about always mounting partitions as read-only and has problems resuming from sleep, and some programs have problems writing to the partition even after manually configuring Ext2Fsd to allow writes. So, I would like to use NTFS for the flash drive, but disable the journaling feature (causes extra writes), if possible. How can I do this?

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• size of extent on LVM2

  - by piotrek

  in LVM1 there was a limit of 65k extends. So size of extent had to been chosen carefully between wasted space on partitions (to big extent) and maximal possible size of logical volume (too small extent). in lvm2 (according to http://docstore.mik.ua/manuals/hp-ux/en/5992-4589/apa.html) the limit is ~16 million extents. so the default size of 4mb gives ~60TB of LV size. so is there any point in making the extent larger than 4-16mb on a desktop? is there any performance degradation or other costs of having big number of extents?

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• Ubuntu 12 Server messing up my hard disk

  - by Jeroen Jacobs

  I'm installing Ubuntu server on a disk with 12GB available. During the setup, I choose the default LVM-based partition layout. However for some reason, Ubuntu decides that it only wants to use 4GB of this disk. How do I reclaim the remaining space of the hard disk? "lvextent" doesn't work btw... output of df -h: Filesystem Size Used Avail Use% Mounted on /dev/mapper/ubuntu-root 4.3G 3.4G 754M 82% / udev 3.9G 4.0K 3.9G 1% /dev tmpfs 1.6G 756K 1.6G 1% /run none 5.0M 0 5.0M 0% /run/lock none 3.9G 0 3.9G 0% /run/shm /dev/sda1 228M 25M 192M 12% /boot output of pvdisplay: --- Physical volume --- PV Name /dev/sda5 VG Name ubuntu PV Size 12.32 GiB / not usable 2.00 MiB Allocatable yes PE Size 4.00 MiB Total PE 3154 Free PE 8 Allocated PE 3146 PV UUID dD06RZ-kGcL-1tTX-Ruds-XIDG-ssMd-FIUkzZ my partitions: Device Boot Start End Blocks Id System /dev/sda1 * 2048 499711 248832 83 Linux /dev/sda2 501758 26343423 12920833 5 Extended /dev/sda5 501760 26343423 12920832 8e Linux LVM when I try lvextent, it says there is not enough diskspace.

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• What are the best options for a root filesystem hosted on SSD under Linux

  - by stsquad

  I'm working on an embedded system which is going to be booting and hosting it's rootfs on an SSD disk. We are currently looking at using Intel X-18M SSDs. The file system structure will have a fairly static /usr section (modulo software upgrades) and an active /var and /var/log for maintaining state and logging. Given the wear-levelling done by the underlying flash does having separate partitions help or hinder? As modern SSDs appear as straight block devices and hide their mapping magic behind their firmware is there any point trying to optimise the choice of file-system that sits on-top of the SSD? Finally does enable SMART monitoring make any sense in this context or are their SSD specific ways of determining the underlying health of the storage hardware?

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• Asus AT3-IONT & Win XP

  - by user59178

  Hello! I'm trying to install Windows XP on my nettop (Asus AT3-IONT motherboard). There is a problem - when the progress comes to partition selection, it sees all the partitions on the hard drive, but when I'm selecting any partition, it says that it's not compatible with Windows XP. Windows 7 was installed without any problems, but XP and 2003 R2 have this problem. How can I solve it? P.S. I already have Windows 7, I need exactly XP or 2003 for my work. Thanks.

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• Best way to Duplicate a Laptop's Hard Drive One-to-One

  - by Urda

  I have a Lenovo X61 Tablet computer, with a plain SATA drive inside. I have windows 7 and Ubuntu 9.10 dual booting on the computer. I want to back up both of these OS's, and their special partitions (Windows 7 has one, and of course the Linux Swap). I want a one-to-one backup, all of my mission critical data is already backed up, but I would like to get a snapshot, and store it on a larger file server at home for quick recovery. What is the best approach to do this?

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