The computer is a DELL Laptop, model: Latitude 3590. BIOS date and version: Dell Inc. 1.4.0 1/3/2018.
I made a new partition layout for a dual boot.
I installed Windows 10 Pro version 10.0.15063.
Then I installed Xubuntu 18.04.
As a result I obtained a dual boot that worked great, for more than 2 months.
One day the computer did not showed the GRUB any more, and initiated Windows 10.
I have restored the GRUB, and I have tested that both systems can boot. However after 24 hours the GRUB is missing again.
I have restored the GRUB 2 times, with same result every time: GRUB missing again after 24 hours.
To restore the GRUB I utilized a live Xubuntu 18.04 in a pendrive, and I followed this steps:
In the live Xubuntu:
sudo mount / dev/sda1 /mnt
sudo mount / dev /mnt/ dev sudo mount /proc /mnt/proc
sudo mount /dev/sda2 /mnt/boot/efi sudo chroot /mnt
grub-install --recheck / dev/sda
In the installed Xubuntu:
This is the BIOS configuration am using: -Sata Operation: RAID ON
-Secure Boot Enable: Disable
-Enable Legacy Options ROM's: true
-Enable Attempt Legacy Boot: false
-Boot List Options: UEFI
I have a dual boot of both systems in a PEAK laptop. And never has failed since its installation. So, I think this issue is related with the BIOS or its configuration.
This are my questions: 1) What am I doing wrong ? 2) Does DELL-Latitude 3590 need a special BIOS settings for the dual boot that I need ?
Any suggestion is welcome ! Thank you very much in advance !