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Thread: Upgrade of kernel failed, encrypted partitions are not booting

  1. #1

    Upgrade of kernel failed, encrypted partitions are not booting

    Hello guys,


    here is the situation..

    my lovely laptop has encrypted disk, so everytime i boot up, it requires me to enter a password.

    after the last kernel update i find that it is no longer asking me for a password at boot.

    any suggestions?

    i have booted with a USB using the same version of Ubuntu LTS and it seems that everything is there.

    Many Thanks in Advance!
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  2. #2

    Re: TOTALLY LOST - upgrade of kernel failed - encrypted partitions are *not* booting

    So the disk is fine

    But the kernel will not boot as the disk is fully encrypted.

    How do i configure the system to use a password to decrypt the fully encrypted disk.



    Thanks
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  3. #3
    Join Date
    May 2006
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    Kubuntu

    Re: TOTALLY LOST - upgrade of kernel failed - encrypted partitions are *not* booting

    please try recovery mode
    hit/hold/press the shift key at boot

    this should give you the option of using the last kernel to boot from since the update ...
    https://wiki.ubuntu.com/RecoveryMode
    Hope this helps . . . Steve ...
    Nothing travels faster than the speed of light, except bad news ...
    Shuttle XS35 - Intel Atom 1.6 - 4GB Ram - 500GB HDD - Linux Kubuntu

  4. #4

    Re: TOTALLY LOST - upgrade of kernel failed - encrypted partitions are *not* booting

    Thanks MrSteve

    I can not find that option as there is no other kernel available. .

    Is there an alternative?
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  5. #5
    Join Date
    May 2006
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    Kubuntu

    Re: TOTALLY LOST - upgrade of kernel failed - encrypted partitions are *not* booting

    i think you are going to need a command line guru to help
    so you can install a kernel from the terminal ...
    Hope this helps . . . Steve ...
    Nothing travels faster than the speed of light, except bad news ...
    Shuttle XS35 - Intel Atom 1.6 - 4GB Ram - 500GB HDD - Linux Kubuntu

  6. #6
    Join Date
    Aug 2013
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    336

    Re: TOTALLY LOST - upgrade of kernel failed - encrypted partitions are *not* booting

    What exactly is happening? Do you get a black screen with an error? "No OS Installed"?
    Can you get to grub if you hold shift while booting? Is /boot also encrypted?

  7. #7

    Exclamation Re: TOTALLY LOST - upgrade of kernel failed - encrypted partitions are *not* booting

    hello


    thanks for looking into this problem folks,

    the system boots into the list of available 'kernels'

    there is no counter - normally it would be a counter (30secs)

    there is a single entry for Ubuntu
    choose that and we find a purple screen that never changes.

    i am not sure what info you require.
    so i am attaching the grub.cfg

    grub.cfg.txt

    if you would like further info please let me know

    i have already taken a copy of the files that i required off this system.

    so if the worse comes. it will not be too bad.


    thanks,
    www.brainpowered.net
    supporting Open-Source in Europe. Business Intelligence, Talend ETL & Database Services

  8. #8

    Re: Upgrade of kernel failed, encrypted partitions are not booting

    bumping..


    there must be a way to tell the kernel to use a password at boot time.
    could someone with a full-disk encryption be so kind to publish their grub.cfg from their /boot ?


    Thanks,
    www.brainpowered.net
    supporting Open-Source in Europe. Business Intelligence, Talend ETL & Database Services

  9. #9
    Join Date
    Aug 2013
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    336

    Re: Upgrade of kernel failed, encrypted partitions are not booting

    There is my grub.cfg from an install of 14.04.01 on a virtual box. Selected Encrypt whole disk an it auto-selected LVM.

    79cd2a72-44ed-44e7-9a00-0f53d20adb44 is my /boot partition (ext2, non encrypted).

    34ba7ccd-add3-464b-93a2-08b2e79923f8 is my encrypted crypt-luks (sda5). I see no reference to it on the file.
    Attached Files Attached Files
    Last edited by sotiris2; August 28th, 2014 at 11:47 AM.

  10. #10

    Re: Upgrade of kernel failed, encrypted partitions are not booting

    Thanks Sotiris2

    let me see if i can get it going again.
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