I don't know what's going on exactly, but I've been getting flash drive corruption when booting with UEFI on my HP EliteDesk 800 G1.
I boot with the Knoppix 8.2 DVD, install to flash drive with fat32 and a persistent image file and reboot.
In the bios startup boot menu (F9 on the HP) I get two selections for my flash drive boot, the same drive listed in two locations: one in UEFI and the other in Legacy mode.
I thought, oh it will boot into UEFI mode, let's try it!
It seems like every time I've tried a UEFI boot it will clobber my flash drive, overwriting the first sectors of the flash drive and in general corrupting it.
I start seeing a bunch of inode errors in my dmesg log.
It's done this a couple of times now, so I'm going to see if just booting with Legacy mode will be safe.
It could be the HP system, the flash drive, or maybe booting with UEFI mode.
ASUS H110M-R Motherboard Intel 6th/7th Gen LGA1151 DDR4 Micro-ATX i/o shield
$42.00
***NEW*** BCM RX67Q Gaming Motherboard | Intel Q67 2nd/3rd Gen. | LGA1155 | DDR3
$29.77
***NEW*** BCM RX67Q mATX Gaming Motherboard Combo | Intel i5-3470 | 16GB DDR3
$49.77
ASRock B250M-HDV LGA 1151 Micro ATX DDR4 Desktop Motherboard w/ IO Shield
$54.99
Micro ATX Desktop Motherboard ASUS H110M-C LGA 1151
$31.95
ASUS Prime Q270M-C LGA1151 DP HDMI VGA SATA 6GB/s USB 3.0 MicroATX Motherboard
$37.99
Gigabyte GA-B75M-HD3 Intel LGA1155 DDR3 Desktop Motherboard MicroATX USB 3.0
$26.99
Gigabyte AMD B550 UD AC Gaming Motherboard - AMD B550 Chipset - AM4 Socket - AMD
$89.99
Gigabyte Technology GA-X99-GAMING 5P, LGA 2011, Intel Motherboard
$78.49
BTC-S37 Mining Motherboard Kit /w SSD & Ram Preinstalled
$59.99