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(I did a search on this forum and since it did not yield a satisfactory result, I am posting this) Hi everyone!, I have got a new Lenovo B570 with ...
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    Dual boot issue on EFI/GPT


    (I did a search on this forum and since it did not yield a satisfactory result, I am posting this)
    Hi everyone!,
    I have got a new Lenovo B570 with Intel core-i3-2330M (64 bit Sandy Bridge). The system has Intel HD 3000 graphics, 4GB DDR3 RAM, 500 GB HDD. I installed Windows 7 (Pro 64 bit) on a 110GB partition for work requirements and reserved another 100GB for windows data (the remaining is for Linux). While installing, as Win7 requires, it was installed on the HDD working as GPT HDD. The BIOS/EFI control menu has HDD on the "compatible" mode and not "AHCI" mode, as Win7 crashed on the latter.
    Now, I installed Fedora 16 beta on the remaining HDD space to try it out before a full installation. The problem is that on reboot, GRUB isn't loaded at all. What is the option I missed? And how do I set up GRUB for dual boot in this system? I really don't wish to reinstall windows as many softwares are already installed in it and there will be many licence-key issues if I were to reinstall it.
    If it helps: While installing Fedora, I got a warning saying something like "You are installing Fedora on a GPT disk ...(something)... This may not work".
    I would appreciate any help.
    Cheers,
    Mahesh

  2. #2
    Super Moderator devils casper's Avatar
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    This might be a problem in beta version. Are you aware that one might face problems in beta version? Installer of Fedora-beta gives a warning about this too.
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

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    Thanks for the quick reply mate.
    Well I considered that and after posting treid ubuntu 11.10. Same issue.
    I also tried EasyBCD from Win7, editing Win7 bootloader. Again, no use. I think I am making a mistake with bootloader installation somewhere. While intalling Fedora, there is an option with the bootloader, as to where to put it, i.e., MBR or first sector of /boot. I tried both. Somehow, it seems like a bootloader setting issue specific to EFI/GPT systems, which somehow, I am not able to figure out.
    Cheers,
    Mahesh

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    Super Moderator devils casper's Avatar
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    Boot up from LiveCD of any Linux distro and post the output of fdisk -l command here.
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

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    As fdisk doesn't work with GPT, here is parted output:

    [root@localhost liveuser]# parted -l /dev/sda
    Model: ATA HITACHI HTS54755 (scsi)
    Disk /dev/sda: 500GB
    Sector size (logical/physical): 512B/4096B
    Partition Table: gpt

    Number Start End Size File system Name Flags
    1 1049kB 106MB 105MB fat32 EFI system partition boot, hidden
    2 106MB 240MB 134MB Microsoft reserved partition hidden, msftres
    3 240MB 122GB 121GB ntfs Basic data partition hidden
    4 122GB 227GB 106GB ntfs Basic data partition hidden
    5 227GB 332GB 105GB ntfs Basic data partition hidden
    6 332GB 332GB 1049kB hidden, bios_grub
    7 332GB 333GB 524MB ext4 boot
    8 333GB 500GB 167GB lvm


    Model: Linux device-mapper (linear) (dm)
    Disk /dev/mapper/VolGroup-lv_root: 53.7GB
    Sector size (logical/physical): 512B/4096B
    Partition Table: loop

    Number Start End Size File system Flags
    1 0.00B 53.7GB 53.7GB ext4


    Model: Linux device-mapper (linear) (dm)
    Disk /dev/mapper/VolGroup-lv_home: 108GB
    Sector size (logical/physical): 512B/4096B
    Partition Table: loop

    Number Start End Size File system Flags
    1 0.00B 108GB 108GB ext4


    Model: Linux device-mapper (linear) (dm)
    Disk /dev/mapper/VolGroup-lv_swap: 5234MB
    Sector size (logical/physical): 512B/4096B
    Partition Table: loop

    Number Start End Size File system Flags
    1 0.00B 5234MB 5234MB linux-swap(v1)


    Model: Linux device-mapper (snapshot) (dm)
    Disk /dev/mapper/live-osimg-min: 4295MB
    Sector size (logical/physical): 512B/512B
    Partition Table: loop

    Number Start End Size File system Flags
    1 0.00B 4295MB 4295MB ext4


    Model: Linux device-mapper (snapshot) (dm)
    Disk /dev/mapper/live-rw: 4295MB
    Sector size (logical/physical): 512B/512B
    Partition Table: loop

    Number Start End Size File system Flags
    1 0.00B 4295MB 4295MB ext4


    Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0
    has been opened read-only.
    Error: Invalid partition table - recursive partition on /dev/sr0.
    Ignore/Cancel? C
    Model: Slimtype DVD A DS8A5SH (scsi)
    Disk /dev/sr0: 610MB
    Sector size (logical/physical): 2048B/2048B
    Partition Table: unknown

    [root@localhost liveuser]#
    Actually there are two ~100 GB ntfs data partitions (I made a mistake in the original post), in addition to the main Win7 120 GB partition.
    Cheers,
    Mahesh

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