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    • GRUB2 has disappeared Deepin 15.3
    Community Discussion 1618 views · 10 replies ·
    Tofloor
    poster avatar
    savanweylyn
    deepin
    2017-01-04 08:15
    Author
    Hi all,

    last time everythig was ok, but when i started my laptop today morning, i didn't see GRUB and Windows booted automatically. I've checked the Boot menu and there were only four options: Windows Bootloader, ubuntu (which is a dead end, since there's no Ubuntu installed), EFI USB Device and EFI CD/DVD-ROM. Deepin wasn't anywhere on that list. So I booted itno Windows, quickly „burnt” Super GRUB2 Disk to a pendrive and rebooted. In the external GRUB i could see Deepin and was able to start it, so I've quickly reinstalled ALL THE GRUB PACKAGES and rebooted. There's still NO boot menu entry for Deepin at all. Here's a list of the contents of /boot: http://pastebin.com/UCm0LaxL.
    What happened and how can i fix this?

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    All Replies
    stevex
    deepin
    2017-01-04 11:01
    #1
    Hi. This info was taken from another forum, but it might be worth a try.   "just had to run this in windows as an administrator : bcdedit /set {bootmgr} path \EFI\ubuntu\grubx64.efi    Grub appears fine on boot and I can boot into Ubuntu and Win10 fine." Replace "ubuntu' with Apricity. This command is for people who can only boot into Windows 10 after installing Linux to dual boot with W10. Use at your own risk, as is said. Command was found on Ubuntu forum. This worked some people, not all. Good luck.    *** In your case, replace ubuntu with" Deepin" in the command. Good luck.
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    savanweylyn
    deepin
    2017-01-04 12:47
    #2
    https://bbs.deepin.org/post/133730
    Hi. This info was taken from another forum, but it might be worth a try.   "just had to run this in  ...

    Thanks! I'll try it out tomorrow.
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    Comments
    wangqizai1918
    2017-01-04 20:51
    there is a free software "easyuefi" providing graphical editing funtion for uefi boot entries,and similar the "easybcd"
    182******97
    deepin
    2017-01-04 13:24
    #3
    我进错论坛了？
    Reply View the author
    182******97
    deepin
    2017-01-04 13:25
    #4
    can you speak ｃｈｉｎｅｓｅ？
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    isunny
    deepin
    2017-01-04 16:30
    #5
    If you can see deepin in external grub ,  then you can add the deepin menu into bios os selecttion menu according to you harddrive type. I f you have uefi table,you can add deepin menu into your bios by easyuefi in windows.(sorry for i do not know how to fix it in linux), if MBR table by easybcd.   

    ls /boot    if efi is found, then you r using uefi, if not found, then mbr
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    Feng Yu
    deepin
    2017-01-04 17:14
    #6
    https://bbs.deepin.org/post/133730
    我进错论坛了？

    你进错板块了而已，你没注意这个板块就是国际社区交流么？
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    w_w
    deepin
    2017-01-04 18:06
    #7
    https://wiki.debian.org/GrubEFIReinstall may help and deepin provide official support at http://feedback.deepin.org/, it would be better to upload report generated with command deepin-feedback-cli. Good Luck
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    savanweylyn
    deepin
    2017-01-04 23:19
    #8
    https://bbs.deepin.org/post/133730
    can you speak ｃｈｉｎｅｓｅ？

    No, i can't.
    Reply View the author
    savanweylyn
    deepin
    2017-01-05 03:21
    #9
    Edited by savanweylyn at 2017-1-8 14:35

    I could solve ti with copying the contents of /boot/grub to /boot/efi/EFI/deepin, so it showed up again, but unfortunately Deepin will stuck at startup* when booting from there, but everything's OK if Deepin has been started via the external GRUB.

    *after the "Welcome to Emergency Mode" message i can press Ctrl + D, but nothing (visible) will happen.
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    182******97
    deepin
    2017-01-05 06:55
    #10
    https://bbs.deepin.org/post/133730
    你进错板块了而已，你没注意这个板块就是国际社区交流么？

    额，首页，看到的
    Reply View the author