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ちょっとそろそろ本格的に考えねば、とUSBのHDDboot環境。microSDに最低限のbootパーテーションだけ置いて、、、と思ったらRaspberryPi3なら純粋にUSBブートできるらしい。
root@raspi-desktop:~# rpi-update
*** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
*** Performing self-update
*** Relaunching after update
*** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
#############################################################
WARNING: This update bumps to rpi-4.9.y linux tree
Be aware there could be compatibility issues with some drivers
Discussion here:
https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=167934
##############################################################
Would you like to proceed? (y/N)
*** Downloading specific firmware revision (this will take a few minutes)
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 168 0 168 0 0 104 0 --:--:-- 0:00:01 --:--:-- 104
100 53.5M 100 53.5M 0 0 1189k 0 0:00:46 0:00:46 --:--:-- 1479k
*** Updating firmware
*** Updating kernel modules
*** depmod 4.9.13+
*** depmod 4.9.13-v7+
*** Updating VideoCore libraries
*** Using HardFP libraries
*** Updating SDK
*** Running ldconfig
*** Storing current firmware revision
*** Deleting downloaded files
*** Syncing changes to disk
*** If no errors appeared, your firmware was successfully updated to d8803bc3b369b087450e636beb0cb30857e3215e
*** A reboot is needed to activate the new firmware
root@raspi-desktop:~#