PBP WiKi is up - do your share

[firefox-58]

I find the wiki helpful up to a point, because when you have to do something, you are directed, in many cases, to posts. The posts are good to get answers and learn from other people experience, but as things are evolving so fast, you don't need to go trough the mistakes of other people and it takes ages to find the last working solution.
My last experience installing and booting from NVMe was a real nightmare. By the way, the same on a RPI 4 took some 45 minutes and with the PBP 15 days (thanks to confinement).
I think that when a solution for a problem is reached, it should go to a sub-page of the wiki or a pdf that you can have and use.

Sorry if what I say sounds as critic, it is not my intention. Just a small contribution from a non expert user.

Thanks you all for your effort.
Carlos.

After bricking my PBP more than one time with flashing U-Boot i handled it in this way

1. install partitionmanger or gparted
   
2. format the NVMe and make one partition with EXT4 on it
   
3. mount the newly created NVMe partition to /mnt
   
4. "cd /mnt"
   
5. "mkdir dev proc sys mnt"
   
6. "rsync -aHxv --numeric-ids --progress /* /mnt --exclude=/dev --exclude=/proc --exclude=/sys --exclude=/mnt"
   
7. start partitionmanager KDE or gparted
   
8. edit the partition and rename the original partition label from "MNJRO_ROOT to MNJRO_ROOT_1 on the SD card or for me on the EMMC
   
9. edit and rename the partition label of the NVMe partition to MNJRO_ROOT
   
10. apply all changes and reboot
    

Now the PBP boots from /boot on the EMMC and mounts / from the NVMe
Mission accomplished and no need for u-boot updates or renewals
NO warranties that it works the same way on other PBP's of other users !!!!