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.
Intel PCIe SSD AIC RAID Controller Card G97168-252
$44.55
LSI 9305-16i SATA SAS 12Gbs RAID Controller PCIe 3.0 x8 IT-Mode 4* 8643 SATA
$229.99
Cisco UCS LSI MegaRAID 9271CV-8I SAS2308 PCIe SAS Internal RAID Controller
$28.00
Dell HBA330 12GBPS SAS Internal HBA Controller (NON-RAID) PCIe Card J7TNV 0J7TNV
$40.95
Inspur LSI 9300-8i Raid Card 12Gbps HBA HDD Controller High Profile IT MODE
$15.98
LSI MegaRAID 9361-8i 12Gb PCIe 8-Port SAS/SATA RAID 1Gb w/BBU/CacheVault/License
$39.95
ORICO Multi Bay RAID Hard Drive Enclosure USB 3.0/ Type-C For 2.5/3.5'' HDD SSDs
$87.99
LSI MegaRaid 9361-8i 12Gbps SAS / SATA Raid Controller PCIe x8 3.0 Tested
$29.00
4 Bay RAID External Hard Drive Enclosure for 2.5/3.5" SATA HDD/SSD
$79.99
G TECHNOLOGY G RAID 0G04228 2-Bay Thunderbolt 2 RAID Array W/Power Supply
$99.99