Boot order

[IHaveALinuxPhone]

I don’t really understand the boot system but I have one knowledge tidbit to contribute. I lost track of things and let my PPP battery go to zero. I plugged it in and it booted to Arch which is on my SD card. I did nothing knowingly to my original default OS.

[amartinez]

FWIW, I and others have found that our PPP's will boot to SD without doing anything, other than inserting the SD card. I don't know why this would be. After I booted into ArchLinux Phosh, I went ahead and wiped out the eMMC as per the wiki, so I can't test that anymore. But, it DID boot to SD without pushing any buttons at all.

+1 - I never pressed RE, and have run five different OSes from my SD card in the two days I've had my PPP. Happily booting back into the default OS just by removing the SD card.

basically , the PPPEE , will check the emmc for boot ,

The preloaded manjaro has a special version of uboot that will check SD First before booting itself , but if you wipe it and nothing is on the emmc then the SD will also boot ,

if you flash something else to the emmc then the SD won't boot and if it brick then you need to press the reset button under the cover to boot back on a sd card .. so yeah really easy in all scenario

This appears to answer the riddle, but perhaps this should be documented clearly somewhere so it's not so mysterious to users?

[fxc]

This appears to answer the riddle, but perhaps this should be documented clearly somewhere so it's not so mysterious to users?

Uh, it is documented? https://wiki.pine64.org/wiki/PinePhone_Pro#Software

[kaida]

Yeah , the reason I could answer is because I've read the docs..