I have a 2.5″ SSD drive connected to my HP Thin Client t640 via an (older) SATA to USB 2.0 adapter with external power adapter. I got this t640 recently and updated the BIOS a month ago (which can only be done in Windows 10, I believe). So I am on the latest HP t640 BIOS version.
I run Lubuntu 26.04 and use an internal M.2 SSD drive to boot from and use the 2.5″ SSD as the home partition.
Last week I wanted to change this older USB 2.0 cable with a USB to SATA 3.0 adapter with integrated power connection. This saves me a wall socket and a (hopefully) faster data connection. I connected it to a USB 3.1 socket.
But I soon noticed that Grub will now NOT boot anymore from the M.2 SSD drive.
I think it is difficult to talk about the BIOS without knowing what options are, therefor I tried to sum up the most important BIOS options:
First the 5 menu’s and after that imho the most important menu options. If you miss some options, let me know, and I’ll add them here.
System Information
——————
About
Set Date & Time
Flash System BIOS
Default Setup
Apply Defaults and Exit
Ignore Changes and Exit
Save Changes and ExitStorage
——-
Device Configuration
Storage Options
Boot OrderSecurity
——–
Setup Password
Power-On Password
Device Security
USB Security
Slot Security
Memory Security
Network Boot Security
System IDS
System Security
Secure Boot ConfigurationPower
—–
OS Power Management
Hardware Power ManagementAdvanced
——–
Power-On Options
BIOS Power-On
Bus Options
Device Options
Option ROM Launch Policy
Storage Options
—————
External USB Storage Boot: After internal storage
F10=Accept, ESC=CancelBoot Order
———-
UEFI Boot Sources
USB Floppy/CD: Disabled
USB Hard Drive
UEFI: IPv4 (TFTP) Realtek PCIe GBE Family Controller: Disabled
UEFI: IPv6 (TFTP) Realtek PCIe GBE Family Controller: Disabled
UEFI: IPv4 (HTTP) Realtek PCIe GBE Family Controller: Disabled
UEFI: IPv6 (HTTP) Realtek PCIe GBE Family Controller: Disabled
Legacy Boot Sources
USB Floppy/CD: Disabled
Hard Drive
SATA SanDisk SDSA6PM-064G-1006
Vi550 S3 SSD
F5=Disable, F10=Accept, ESC=CancelDevice Security
—————
System Audio: Enabled
Network Controller: Enabled
M.2 Storage 0: Enabled
Onboard LAN DASH: Disabled
F10=Accept, ESC=CancelSlot Security
————-
Slot # – M.2 PCIe x1: Enable
F10=Accept, ESC=CancelSystem Security
—————
Virtualization Technology: Disable
TPM Device: Available
TPM State: Enable
Clear TPM: Do not reset
F10=Accept, ESC=CancelSecure Boot Configuration
————————-
Legacy Support: Enable
Secure Boot: Disable
Key Management
Clear Secure Boot Keys: Don’t clear
Key Ownership: HP keys
Fast Boot: Enable
F10=Accept, ESC=CancelBus Options
———–
PCI SERR# Generation: Enable
PCI VGA Palette Snooping: Disable
F10=Accept, ESC=CancelOption ROM Launch Policy
————————
PXE Option ROMS: UEFI
M.2 PCIE Slot Option ROM Download: Enable
F10=Accept, ESC=CancelBIOS Version 2.20.1273. Copyright (C) 2026
Has anyone have an idea why the combination of the two ssd drives is not working? Both drives are shown as Legacy Boot Source, not UEFI Boot Source. Do I have anything set up wrong in the BIOS?
BTW, I dislike this HP BIOS. I have seen better ones. This one has the look and feel of a BIOS from the early 90’s. I have never seen a BIOS before where it is not possible to show the BIOS keys on the startup screen. It just isn’t user friendly and the meaning of the settings are not always clear to me (no Help whatsoever ЁЯЩБ )
