Hello, i've been using my UDOO X86 Ultra for over two years now, it has ubuntu 18.04 installed My linux mount setup is as follows: Internal emmc: mounted as / External SD card with 5 partitions, /var /opt /etc /usr and /home I also have attached a SATA 700 GB HDD mounted as /media/SATADisk/ and an USB 2 TB HDD mounted as /media/USBDisk/ Yesterday i've tried to scheduled an fdisk at boot with every device, but found no errors I noticed in the last two weeks that when i do a "sudo reboot" at restart my udoo hangs with a black screen with a blinking cursor and doesn't even boots ubuntu I don't understand if It is a grub problem or an error on the udoo bootloader, it is very strange because if I physically remove the A/C adapter and put it back on , the udoo just boots with no errors. I've also posted this on ubuntu forums since I don't understand if it is a udoo problem or a ubuntu setup error https://ubuntuforums.org/showthread.php?t=2430570&p=13903704#post13903704 Can anyone help me? Thanks
Possible causes... - stuck mechanical hard drive - corrupt Grub/boot loader - BIOS setting incorrect - power problem (this is fairly common, when extra juice is needed to supply to external peripherals)