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

[emil]

[member=50326]emil[/member]

hhhm - ok good stuff - thinking it in another direction from [member=9039]stevef[/member]  which hopefully helps in his direction..

With the USB disconnected and you reboot - Do you receive the error message still?
Also, if you do either the lsblk or fdisk, does the hitachi (internal disk) now show as sda?

My thought...
Perhaps with USB connected and it having an EFI directory, perhaps its cycling/reading taking a moment and generating the error....
If the error persists - perhaps not ...

Unfortunately still receive the same message.

mfm  ~  127  sudo fdisk -l
[sudo] password for mfm:
Disk /dev/sda: 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/sda1          2048  1050623  1048576  512M  b W95 FAT32
/dev/sda2  *    1050624  2101247  1050624  513M ef EFI (FAT-12/16/32)
/dev/sda3      2103294 625141759 623038466 297,1G  5 Extended
/dev/sda5      2103296 625141759 623038464 297,1G 83 Linux