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Thread: my multiple os desktop computer is not having the option to load fedora at startup

  1. #1
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    Red face my multiple os desktop computer is not having the option to load fedora at startup

    i've applied the latest updates and since then i don't see fedora on grub
    i've windows, ubuntu, and the fedora which is now missing from that list...

    i need to study with fedora and i want to know if you could tell me how to make the fedora back on that list and what might have happened

    thanks !
    my desktop computer has Ubuntu 20.04.1 LTS 64bit alongside with fedora and windows 10 as multiple boot
    my laptop is with Ubuntu 20.04.1 LTS 64bit {only}

  2. #2
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    Lubuntu Development Release

    Re: my multiple os desktop computer is not having the option to load fedora at startu

    I would firstly `sudo update-grub` & hope it detects it. (I think I mostly do this so I can watch it detect OSes and look for anything wrong, or different to the norm [eg. speed of detection])

    I would then load KDE Partition Manager or `gparted` & check your partitions for issues (are file-systems clean etc). I would then likely `sudo update-grub` again in hopes it'd detect Fedora system.

    If not fixed, next I'd `mount` the Fedora partition, and `update-grub` again with it mounted. In my experience this detects systems that for an unknown reason aren't picked up at other times. I don't know why, but I've had this work well before a couple of times I've not an another GNU/Linux detected. I can't give reason as to problem, the few times I've had to use this, the system has returned to detecting it quickly, or I never found the cause.

    My 2c suggestions anyway

  3. #3
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    Re: my multiple os desktop computer is not having the option to load fedora at startu

    TNX that was fast
    this is the output of `sudo update-grub`
    https://pastebin.com/bGa1pRdk
    i don't see fedora on the list.
    do i need to install KDE for the `gparted`?
    how do i `mount` fedora like you have said after checking the partition?
    my desktop computer has Ubuntu 20.04.1 LTS 64bit alongside with fedora and windows 10 as multiple boot
    my laptop is with Ubuntu 20.04.1 LTS 64bit {only}

  4. #4
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    Xubuntu 20.04 Focal Fossa

    Re: my multiple os desktop computer is not having the option to load fedora at startu

    If your file manager shows the fedora partition in the left hand pane click on it and it may mount.

    Is your fedora install using lvm which many years ago was the default at installation or is it encrypted?

  5. #5
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    Re: my multiple os desktop computer is not having the option to load fedora at startu

    FYI:

    `gparted` is the GNOME version of KDE Partition Manager. I was using that as a means to `fsck` or file-system check your Fedora partition(s). You could use either, or other tools too including commands) to check your file-system (ie. `fsck`). If errors are detected & fixed, you'll likely find the next `update-grub` works.

    For mounting, refer @ajgreeny's post.

  6. #6
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    Re: my multiple os desktop computer is not having the option to load fedora at startu

    i didn't encrypt it. i think it is lvm
    how can i determine which one is fedora's partition?
    2020-09-18_12-47.jpg
    my desktop computer has Ubuntu 20.04.1 LTS 64bit alongside with fedora and windows 10 as multiple boot
    my laptop is with Ubuntu 20.04.1 LTS 64bit {only}

  7. #7
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    Re: my multiple os desktop computer is not having the option to load fedora at startu

    guiverc
    these are my disks details from the "disks tool"
    https://ibb.co/zRxQCNB
    https://ibb.co/yqCfzyh

    i'm a bit confused because i'm still not sure how to know which partition is fedora's.
    after i know, do i probably just need to update grub again?
    my desktop computer has Ubuntu 20.04.1 LTS 64bit alongside with fedora and windows 10 as multiple boot
    my laptop is with Ubuntu 20.04.1 LTS 64bit {only}

  8. #8
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    Re: my multiple os desktop computer is not having the option to load fedora at startu

    If sda8 is LVM as shown that probably is your Fedora.

    In Ubuntu you also need the LVM tools to be able to mount it.
    sudo apt-get install lvm2
    Mount LVM - duckhook
    https://ubuntuforums.org/showthread....2#post13733372

    Post this in code tags ( Go Advanced editor in Forum and # icon)
    lsblk -o NAME,FSTYPE,LABEL,MOUNTPOINT,SIZE,MODEL, uuid | egrep -v "^loop"

    There was a recent grub update in Ubuntu which would have reset Ubuntu as default or to first in boot order in UEFI, if UEFI or installed Ubuntu's grub to MBR if BIOS. If mostly using Fedora, you may want its grub to be default.
    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.

  9. #9
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    Re: my multiple os desktop computer is not having the option to load fedora at startu

    i performed the command 'sudo apt-get install lvm2'
    this is the results:
    Code:
    https://pastebin.com/yZmhzQeR
    but i still can't monut sda8.
    do i need to rebbot first?

    do you need me to enter all the commands of:
    https://ubuntuforums.org/showthread....2#post13733372
    ?
    and then copy the output here in tags?

    or perhaps you have meant to type:
    Code:
    lsblk -o NAME,FSTYPE,LABEL,MOUNTPOINT,SIZE,MODEL, uuid | egrep -v "^loop"
    ?

    do you mean that perhaps i don't have to do a thing and just restore the fedora's grub to its default?

    thank you
    my desktop computer has Ubuntu 20.04.1 LTS 64bit alongside with fedora and windows 10 as multiple boot
    my laptop is with Ubuntu 20.04.1 LTS 64bit {only}

  10. #10
    Join Date
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    Ubuntu

    Re: my multiple os desktop computer is not having the option to load fedora at startu

    You need to mount it, so it is seen.
    You can run the lslbk command so we can see it mounted & which partition is which.
    And then sudo update-grub should work.

    Then you can boot into Fedora and install its grub as default. Do not know Fedora nor command to install grub, but expect similar to Ubuntu's commands.
    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.

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