Hey guys and girls.
I have a server running Ubuntu Server 18.04. It is an Asrock J3455-ITX board, and has 4 SATA ports. I want to be able to have 4 storage disks, so I’m moving the OS SSD to a USB3 interface.
I got an internal USB3 to 2xUSB3 like this one. and a USB3 to SATA adaptor, like this one.
Issue: When simply moving the OS SSD to the internal USB3 interface, it is stuck at:
Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
BUT, only sometimes… when trying to boot into an erlier kernel, it works, so I tried
sudo update-initramfs -u -k *version-of-new-kernel* and then update grub. But to no avail. It simply wont boot properly, or boot fine once, and then after reboot be stuck again.
I tried inserting another SSD, installing from scratch, this time in the internal USB header from install to boot, and from a new image, Ubuntu Server 20.04. Still the exact same thing happens.
Here’s the kicker: When moving the USB3 to SATA to one of the USB3 ports on the back I/O plate, it works fine, every time.
I also tried unplugging the china bought internal USB3 header, and inserting the one for the front panel I/O, and it still does not work.
Is this simply a bad port on the motherboard, the internal USB header is bust? Think that would be weird, because of the failure, it doesn’t seem to have anything to do with anything exterior to the disk? I’d expect it to either work or not work 100% of the time.
I could just leave it as is, but I’m not that fond of having the OS disk dangling off the back of the case.
Any ideas or insights would be very much welcome!