[fcash at rogue /home/fcash]$ freebsd-version -ku 12.0-RELEASE-p8 12.0-RELEASE-p8 This system was previously running FreeBSD 11.2 and didn't have any issues booting with the external USB drive plugged into the USB 3.0 ports on the motherboard. Ever since upgrading to 12.0, and through all the updates to -p8, booting with the external drive plugged in fails. It will eventually get through the loader, start to load the kernel, then drop to a black screen, and (after a few minutes) power off the system completely. The boot process is *extremely* slow with the USB drive plugged in. As in, you can watch the loader cursor twirl at about 1 frame every few seconds. However, if I am sitting at the computer, I can press any key on the keyboard (even shift, ctrl, alt, or spacebar), and it will make the cursor spin at a normal speed for a second or two. So, if I hit a key on the keyboard every other second, it will go through a normal boot process. I seem to recall there was a similar issue on the mailing list a couple months back, but my google-fu is failing me. :( I thought there was a loader.conf setting that resolved that issue, but I can't seem to find it. If I unplug the external drive, it boots normally without any user intervention. Connecting the drive after the login prompt appears, everything works normally. It's only the boot process that is an issue. This is an olded system, using an AMD Phenom-II quad-core CPU, but has 16 GB of RAM, and 6 harddrives in a ZFS pool. Has been working great, up until the 12.0 upgrade. I have plans to upgrade this system to 12.1 later this month. Just wondering if this is a known issue that's fixed in that release, or something new. xhci0: <ASMedia ASM1042 USB 3.0 controller> mem 0xfe800000-0xfe807fff irq 46 at device 0.0 on pci2 xhci0: 32 bytes context size, 32-bit DMA xhci0: Unable to map MSI-X table usbus0 on xhci0 xhci1: <ASMedia ASM1042 USB 3.0 controller> mem 0xfe600000-0xfe607fff irq 50 at device 0.0 on pci4 xhci1: 32 bytes context size, 32-bit DMA xhci1: Unable to map MSI-X table usbus1 on xhci1 ohci0: <AMD SB7x0/SB8x0/SB9x0 USB controller> mem 0xfe90a000-0xfe90afff irq 18 at device 18.0 on pci0 usbus2 on ohci0 ehci0: <AMD SB7x0/SB8x0/SB9x0 USB 2.0 controller> mem 0xfe909000-0xfe9090ff irq 17 at device 18.2 on pci0 usbus3 on ehci0 ohci1: <AMD SB7x0/SB8x0/SB9x0 USB controller> mem 0xfe908000-0xfe908fff irq 20 at device 19.0 on pci0 usbus4 on ohci1 ehci1: <AMD SB7x0/SB8x0/SB9x0 USB 2.0 controller> mem 0xfe907000-0xfe9070ff irq 21 at device 19.2 on pci0 usbus5 on ehci1 ohci2: <AMD SB7x0/SB8x0/SB9x0 USB controller> mem 0xfe906000-0xfe906fff irq 18 at device 20.5 on pci0 usbus6 on ohci2 ohci3: <AMD SB7x0/SB8x0/SB9x0 USB controller> mem 0xfe905000-0xfe905fff irq 22 at device 22.0 on pci0 usbus7 on ohci3 ehci2: <AMD SB7x0/SB8x0/SB9x0 USB 2.0 controller> mem 0xfe904000-0xfe9040ff irq 23 at device 22.2 on pci0 usbus8 on ehci2 da0 at umass-sim0 bus 0 scbus12 target 0 lun 0 da0: <ST330006 50NS 0004> Fixed Direct Access SPC-3 SCSI device da0: Serial Number Z297HW2Q da0: 400.000MB/s transfers da0: 2861588MB (5860533168 512 byte sectors) da0: quirks=0x2<NO_6_BYTE> -- Freddie Cash fjwcash at gmail.com