Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: Ubuntu Installer Doesn't Recognize Windows 7

  1. #1
    Join Date
    Dec 2010
    Beans
    8

    Ubuntu Installer Doesn't Recognize Windows 7

    I have been trying to dual boot Windows and Linux on my custom built barebone i7 2.67 ghz with windows 7 pro 64 bit, but every distro I try I have the same issue - the installer thinks there is nothing on my four HDs. In Windows, it considers the partition Windows is installed on to be one big partition (it is on all of my HDs) and (as far as I can see) doesn't even point out that it is on four HDs. Here is the "fdisk -lu" output on PartedMagic Terminal:
    Code:
    Welcome - Parted Magic (Linux 2.6.35.7-pmagic)
    
    root@PartedMagic:~# fdisk -lu
    
    Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
    255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0x7549d38c
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sda1   *        2048  3907035135  1953516544    7  HPFS/NTFS
    
    Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
    255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0x7549d38c
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sdb1   *        2048  3907035135  1953516544    7  HPFS/NTFS
    
    Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes
    255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0x00000000
    
    Disk /dev/sdc doesn't contain a valid partition table
    
    Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes
    255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0x00000000
    
    Disk /dev/sdd doesn't contain a valid partition table
    
    Disk /dev/sde: 2038 MB, 2038431744 bytes
    251 heads, 62 sectors/track, 255 cylinders, total 3981312 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: 0xc3072e18
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sde1   *          64     3981311     1990624    c  W95 FAT32 (LBA)
    but on partition editor on Parted Magic and on all of the Linux installers it says all four hard drives are 931.51 gigs (which makes no since), and they are all unallocated.

    BTW - Dont worry about /dev/sde, thats just a flash drive.

    Thanks
    Last edited by TQBRFJOALD; December 28th, 2010 at 04:32 AM.

  2. #2
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Ubuntu 16.04 Xenial Xerus

    Re: Ubuntu Installer Doesn't Recognize Windows 7

    Even the fdisk says it cannot see sdc & sdd. Do you have NTFS partition(s) on those drives?

    Linux often will not work with NTFS partitions that need chkdsk, so that it does not damage it and prevent chkdsk from repairing it. I might try chkdsk first.

    Do you have 4 copies of windows installed? Or just 4 NTFS partitions?

    Were these drives ever set up in RAID. RAID leaves meta data on a drive that can interfer with non-RAID installs.
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  3. #3
    Join Date
    Dec 2010
    Beans
    8

    Re: Ubuntu Installer Doesn't Recognize Windows 7

    Yes I do have Raid. I have one big partition on all of those hard drives (so all of them combined makes up one partition) which is where Windows 7 is installed (so i only have one copy of windows). I will try chkdsk, ill report if it works. I have never fully completed a chkdsk (due to impatientness), so I guess I will. The thing is that I cannot see my HDs in Windows using Disk Management, its just a huge partition.
    I know I am such a noob.
    Last edited by TQBRFJOALD; December 28th, 2010 at 09:02 AM.

  4. #4
    Join Date
    Dec 2010
    Beans
    8

    Re: Ubuntu Installer Doesn't Recognize Windows 7

    chkdsk didn't do anything. I restarted and tried linux mint - the installer just had volume 0 (the windows partition) and volume 1 (the raid partition). It said that both volumes had nothing on them. I went on GParted with the Mint livecd and it was the same as PMagic - 4 931.51 gig unallocated hard drives. So I understand the problem is raid, is it possible to install linux with raid?
    Last edited by TQBRFJOALD; December 28th, 2010 at 09:27 AM.

  5. #5
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Ubuntu 16.04 Xenial Xerus

    Re: Ubuntu Installer Doesn't Recognize Windows 7

    The newest LiveCD may work with RAID but I have usually seen the recommendation to use the alternative installer as it included the extra RAID drivers. Not sure about Mint, but I would doubt that that would normally be included as RAID is unusual on desktops.

    http://www.ubuntu.com/desktop/get-ub...ative-download
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  6. #6
    Join Date
    Dec 2010
    Beans
    8

    Re: Ubuntu Installer Doesn't Recognize Windows 7

    Thanks, Ill try out the alternate 64 bit

  7. #7
    Join Date
    Dec 2010
    Beans
    8

    Re: Ubuntu Installer Doesn't Recognize Windows 7

    Doesn't recognize windows but it does recognize raid. So if i wanted to install ubuntu I would have to uninstall win 7. Oh well, I give up. thx anyway

  8. #8
    Join Date
    May 2007
    Location
    Virginia, USA
    Beans
    13,198
    Distro
    Ubuntu Mate 16.04 Xenial Xerus

    Re: Ubuntu Installer Doesn't Recognize Windows 7

    Quote Originally Posted by TQBRFJOALD View Post
    Doesn't recognize windows but it does recognize raid. So if i wanted to install ubuntu I would have to uninstall win 7. Oh well, I give up. thx anyway
    Don't give up so soon!

    With all that drive space, surely you can spare some for Ubuntu!

    Use the Win7 Disk Management utility to shrink the space allocated to Win7, leaving the remainder unallocated.

    Then, see if the alternate CD can recognize that space.
    Ubuntu 16.04 Mate, Mint 18 Mate; MS Win 8.1, MS Win10 Pro.
    Will not respond to PM requests for support -- use the forums.

  9. #9
    Join Date
    Dec 2010
    Beans
    8

    Re: Ubuntu Installer Doesn't Recognize Windows 7

    alright

  10. #10
    Join Date
    Dec 2010
    Beans
    8

    Re: Ubuntu Installer Doesn't Recognize Windows 7

    Didn't work. Same as always - doesn't recognize Windows and thinks its all free space. It doesn't recognize the partition table either. What I need is way to install Ubuntu with raid 0+1 without uninstalling Win 7
    Last edited by TQBRFJOALD; December 30th, 2010 at 02:53 AM.

Page 1 of 2 12 LastLast

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •