system initialization with error: ata2: COMRESET failed (errno=-16)

[emil]

Looks like Linux Lite / is on sdb5. What is on sda1? Are you dual booting? Are you using an external or USB disk? If the Linux Lite system is booting and running the ata error messages may just be informative rather than consequential i/e a device may not be immediately connectable in the initial boot order but does connect later on. Do you have fast boot disabled in the UEFI settings if this computer was originally Windows?
TC

How do I find out what is on sda1?
I am not dual booting, I only have Linux Lite on the laptop. I installed it with an external USB, but I don't need it anymore. Yes, it was windows originally.
I even google to try to find out if I have fast boot disabled in the UEFI, but I didn't find anything very friendly.

I don't know if it helps, but I typed sudo fdisk -l and the result:

Disk /dev/sda: 1,82 TiB, 2000398933504 bytes, 3907029167 sectors
Disk model: Ultra Slim PL 
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 9B3432E5-83D6-4B4E-A233-89E34D845695

Device      Start        End    Sectors  Size Type
/dev/sda1      40    409639    409600  200M EFI System
/dev/sda2  411648 3907028991 3906617344  1,8T Microsoft basic data


Disk /dev/sdb: 298,09 GiB, 320072933376 bytes, 625142448 sectors
Disk model: Hitachi HTS54323
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0b75e36e

Device    Boot  Start      End  Sectors  Size Id Type
/dev/sdb1          2048  1050623  1048576  512M  b W95 FAT32
/dev/sdb2  *    1050624  2101247  1050624  513M ef EFI (FAT-12/16/32)
/dev/sdb3      2103294 625141759 623038466 297,1G  5 Extended
/dev/sdb5      2103296 625141759 623038464 297,1G 83 Linux