upgrading u-boot--what version? where to get it?
#11
(05-21-2024, 11:30 AM)bsammon Wrote:
(05-21-2024, 12:28 AM)Pavlos1 Wrote: If you want to have multiple OSes installed on one boot device, I would install Tow-Boot to the SPI because it has a built-in boot selector.

Hah... yeah, it's Tow-Boot that started me down this path. The Tow-Boot install instructions (the ones I read) say it should be installed by creating a bootable-SDCard installer, and then booting from it. Guess what wouldn't boot with my 4-year-old u-boot?

If you're willing to take your PBP apart, you will find an eMMC-disable switch. If you flick that then it should boot normally from a Tow-Boot SD card. (i.e. It will use the bootloader on the SD card instead of trying to use the bootloader on your eMMC to boot the SD card.)

If not, a potential software workaround is to use the rk2aw installer from within your stock (i.e. installed to eMMC) OS, then power off the PBP and insert a Tow-Boot SD card. rk2aw will then automatically boot using the bootloader on the SD card, at which point you can use the Tow-Boot installer to overwrite the existing rk2aw install with Tow-Boot.

(05-21-2024, 11:30 AM)bsammon Wrote: Also, now that I finally have serial console set up, I see that u-boot (at least the version on my PBP) has a built-in boot selector as well.

Tow-Boot will give you a graphical selector (IIRC), so you don't have to plug in the serial adapter for every boot....
  Reply
#12
If you know how to use dd , AND NOT SCREW-UP, is it not simpler to blank (dev/zero)
the uboot area on emmc? If uboot is not there, then it can't be loaded
DO make a backup of MBR and first 16M so you can restore as needed
----
It is a bit tedious to type (in uboot terminal) boot_targets=mmc1 or whatever
every time you want to change defaults
  Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  uboot wont boot to SD card after upgrade jbradley419 7 1,240 01-19-2024, 02:29 PM
Last Post: wdt
  Video Flashing/adjusting on boot and reboot jbradley419 0 414 01-16-2024, 09:17 AM
Last Post: jbradley419
  Brand new Pinebook Pro doesn't boot after Manjaro update johnboiles 8 2,628 12-15-2023, 02:11 PM
Last Post: wdt
  PBP won't boot after trying to reinstall Manjaro ARM soupgirl 3 933 12-13-2023, 08:17 PM
Last Post: trillobite
  Various freezes during boot & while running several Linux distros - hardware error? donuts 1 746 11-22-2023, 11:47 AM
Last Post: fxc
  Cannot boot to Kali SD card after uboot upgrade jbradley419 4 1,423 09-19-2023, 08:48 AM
Last Post: dachalife
  Does latest Tow-Boot install/work correctly for everyone? tophneal 4 2,197 08-03-2023, 03:30 PM
Last Post: tophneal
  Boot into NVME drive, no wifi, sound, buttons... PaulQ 0 902 07-13-2023, 01:50 PM
Last Post: PaulQ
  New Pinebook pro won’t boot Generaltuxenburg 4 2,179 06-14-2023, 07:20 AM
Last Post: KC9UDX
Tongue Yet another Pinebook Pro won't boot thread pinemouth 4 2,660 05-20-2023, 01:02 AM
Last Post: jackwilson

Forum Jump:


Users browsing this thread: 1 Guest(s)