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Unable to boot installed system

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asieriko

I've had my KDE Slimbook running without problems for several years.

Earlier this month it stopped booting, I looked at the BIOS and noticed that the date was wrong, so I assumed that the internal CMOS battery was empty and I changed it.

Not, the BIOS shows the correct date, but I still cannot boot.

I don't remember how it was installed (with/without secure boot enabled). I've tried the different options but I doesn't boot.


If I try to boot with secure boot disabled:

Reboot and Select proper Boot device

or Insert Boot Media in selected Boot device and press a key

also, if I select in Boot Override "Launch EFI Shell from filesystem device" it says "Not Found"


If I try to boot with secure boot enabled:

It enters directly in to the BIOS setup utility.

However in Boot, is shows Boot Option #1 as [Ubuntu (Samsung SSD ...] but i select it in Boot Override, it directly enters the BIOS again.

The same happens if I select Boot menu with F10, I can choose ubuntu, but it boots into the BIOS.


With a live CD I can access to my data, and the partitions are as follows:

/dev/nvme0n1p1 -> fat32 -> 512MiB

/dev/nvme0n1p2 -> ext4 -> 457.34GiB

/dev/nvme0n1p3 -> swap

I thought that the fat32 partition stored the efi boot information, but I see it empty from the file manager (partition manager says that 9.70 MiB are  used)

The BIOS Version is 305_SLIM (12/20/2017)


How can I boot into my system?


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3 Answers
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Eusebio Giner Slimbook
Best Answer

Good afternoon,

Have you tried to start with rEFInd? It is an EFI boot loader. https://sourceforge.net/projects/refind/
If it detects the EFI and enters the system do the following:

sudo grub-install /dev/sdX or sudo grub-install /dev/nvmeX

sudo update-grub

Best regards,

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asieriko
Best Answer

Thank you,

I tried rEFInd, but it didn't boot with Secure Boot. So I downloaded Rescue [https://en.altlinux.org/Rescue].

I fixed it by chrooting into my system and running grub-install. (I suppose that I could have done it with the Neon live image).


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Eusebio Giner Slimbook
Best Answer

Perfect, I'm glad it's working for you.
Best regards,

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