Difference between revisions of "U-Boot UMS on APF & OPOS" - ArmadeusWiki
Summary
Latest revision as of 15:23, 21 May 2021 This page gather instructions for using U-Boots USB Mass Storage gadget mode (or UMS) usage on APF6 and OPOS6UL(NANO). This mode allows you to flash rootfs images bigger than the available module RAM, ex: > 200MBytes on the OPOS6UL(NANO). Indeed run update_rootfs script uses RAM to store images while uploading from TFTP, which can be short for big rootfs. • On your Host computer you should see the eMMC partition like a standard USB key. • To flash entire rootfs, first erase all files on this partition: • Then, you have 2 methods to update your rootfs: • Then mount it under an arbitrary directory: • Untar the archive generated by your bsp (in buildroot/output/images/) • One alternative way to untaring is to use dd: • Once finished, you can kill the U-Boots USB gadget process with a Ctrl-C: • UMS was reported not working on Windows 7/8 hosts with Virtual Box Ubuntu 15.04 emulated machines...