JumpDrive isn't working

[zetabeta]

1. Is my host PC missing a driver? dmesg doesn't seem to have picked up any plugging/unplugging events while the phone is on and ostensibly booted into JumpDrive. lsusb likewise doesn't change with the phone connected or disconnected. If the kernel driver needed to detect a PinePhone running JumpDrive isn't installed/loaded by default on a typical Arch system, this could be a quick and easy fix.
   
2. Is it normal for JumpDrive to start with a blank screen? If not, how should I troubleshoot it? I've already downloaded the image twice with cache cleared, and the checksums match.
   
3. If all else fails, is there a way to have the eMMC reflashed more "manually?" I don't have much in the way of appropriate tools/equipment, though...
   

Thanks!

1:
no, jumpdrive should work by default drivers in both linux pc and windows pc. and lsusb should show something. although i found some kind of bug in linux pc, that shows sizes wrong, probably related to eject command, reboot fixes it.
2:
no. screen should display something. basically jumpdrive logo/picture.
3:
you could install o.s. into sdcard and maybe after that using this installed o.s. yet again install into emmc. if the images are same, uuid's might bring some confusion, be careful (hint blkid).

one serious hint though, use "sync" command after dd command, because linux system usually do not write data immediately to the mass media.