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Thread: [Boot-Repair] Graphical tool to repair the PC boot in one click

  1. #1091
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    Re: [Boot-Repair] Graphical tool to repair the PC boot in 1 click!

    I cannot help on Macs. But some general things you need to research.
    But I notice you have the older grub in the MBR and you installed the new one in the PBR of your Linux partition. The error you are getting is as if it is booting the old version from the MBR.
    On PCs with gpt partitioning you also need a bios_grub partition if booting in BIOS mode.
    Post #6 booting Kubuntu 12.10 in EFI mode on my Mac, by trogdor1138
    http://ubuntuforums.org/showthread.php?t=2091257
    Bit older, Mac & PC UEFI, note issues on some systems
    https://help.ubuntu.com/community/UEFIBooting
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  2. #1092
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    Re: [Boot-Repair] Graphical tool to repair the PC boot in 1 click!

    Hello all,

    Since changing some partitions today, I'm unable to boot
    pcould someone please help?

    info: paste.ubuntu.com/5664469

    thanks in advance!

  3. #1093
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    Re: [Boot-Repair] Graphical tool to repair the PC boot in 1 click!

    Welcome bramsomers.
    What did you change. You still show a Windows boot loader in the MBR, but no Windows install. You have one NTFS partition sda4. Boot-Repair is offering to install grub2's boot loader to the MBR which it seems like you should do.
    A few systems have a BIOS that only lets you start to boot if you have boot flag on a primary partition like Windows has to have. Grub/Ubuntu does not use boot flag. Boot-Repair is suggesting to put it on sda5, but you should just use gparted and put it on any primary partition.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  4. #1094
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    Re: [Boot-Repair] Graphical tool to repair the PC boot in 1 click!

    Dear oldfred,

    first of all thanks for your reply!

    I did the following:
    - deleted the original windows 8 partition and I changed it into an ext4
    - deteled the first small boot partition (I guess) of windows
    -reboot, and know I have this problem.
    i tried to reinstall grub, and I just checked the bootflag, it is on for sda5 ( but if I try to enable it using gparted, then it switches it off for sda5


    still no luck here.

  5. #1095
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    Re: [Boot-Repair] Graphical tool to repair the PC boot in 1 click!

    You can only have one boot flag per drive. And it really should be on a primary partition. Grub does not use boot flag.
    About the only exception is booting with the old lilo boot loader as it uses the boot flag like Windows but will boot from a logical partition. But those BIOS that have to have a boot flag on a primary partition would never boot lilo?
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  6. #1096
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    Re: [Boot-Repair] Graphical tool to repair the PC boot in 1 click!

    Hello, this is my first post on ubuntu forums, so if this is the wrong place for my question, please redirect me. I'm looking for advice on how to proceed. I have windows 7 and ubuntu 12.10 currently installed on my computer. However, when I boot the computer, the computer boots directly to windows. I understand that the windows boot loader is currently my master boot loader, so I downloaded easyBCD and tried to direct the windows boot loader to the partition with ubuntu and theoretically grub installed. However, when I tell the windows bootloader to head over to ubuntu, I just get a black text screen that says "grub> ". I then booted in a live session and got this report from boot-repair: http://paste.ubuntu.com/5662950 .

    I think that the next course of action for me is to run boot-repair. However, before I run boot-repair, I'd like to know what it will do to my system. Is there room for boot repair to put grub where it needs to go? Are there any special settings I need to tell boot repair so that both windows 7 and ubuntu boot? I've used boot-repair once in the past with a slightly different problem (then, windows wouldn't boot), and it worked more or less, though it messed up the links to my memory test and gave a funny name to the windows boot.

    Thank you for any help with this.

  7. #1097
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    Re: [Boot-Repair] Graphical tool to repair the PC boot in 1 click!

    Welcome luke55.
    I do not know EasyBCD. They have their own forum if you really want that.
    I think it has to have grub installed to a PBR to work.
    http://neosmart.net/wiki/display/EBCD/Ubuntu

    I would just run Boot-Repair suggested repair to install grub2's boot loader to the MBR of sda.

    While most of grub is in various places in your Ubuntu install, it has to have a boot loader in a MBR. It can be forced into a PBR or partition boot sector. But grub2 really does not like that. It then has to use hard coded addresses (Blocklists) to find the menu & the rest of grub. If grub gets updated its address may change & you then need to reinstall it from a liveCd or Boot-Repair.

    this is your entry in grub's menu, it is already in your grub.cfg:
    Windows 7 (loader) (on /dev/sda1)
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  8. #1098
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    Re: [Boot-Repair] Graphical tool to repair the PC boot in 1 click!

    Thanks a lot, boot repair worked perfectly!

  9. #1099
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    Re: [Boot-Repair] Graphical tool to repair the PC boot in 1 click!

    *edit*Nevermind, I'm stupid. For some reason, after installing ubuntu, it disabled the hard drive (on this "BIOs", disabled has a "!" next to it... so I didn't notice).



    Hey guys, I just picked up a Samsung Ultrabook (NP540U3C-A01UB) and wiped Windows 8. I want to install Ubuntu but it won't let me boot after installing. Just goes to a boot prompt with 2 entries of Windows Boot Manager that each do nothing at all.
    It should also be noted that after disabling Windows Boot Manager (both of them) in the Boot Priority screen, everything turns on, gets past the Samsung screen, then reboots bringing me to an empty boot menu (again, Samsung's, not linux's)

    Here's my URL:
    http://paste.ubuntu.com/5677273/

    Note: It's a 500GB HDD with a 25GB "cache". Any help would be appreciated.
    Last edited by ATXChris; May 18th, 2013 at 03:17 PM.

  10. #1100
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    Re: [Boot-Repair] Graphical tool to repair the PC boot in 1 click!

    @ATXChris
    You are not using sdb? That is your 24GB SSD. Those that prefer Ubuntu install / (root) onto the SSD for fast boot and leave off Intel SRT which in your case will not work anyway as it is Windows only. And then you have /home or all you data on your rotating drive.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







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