View Single Post
      06-10-2023, 12:44 PM   #16
POBEP
Captain
POBEP's Avatar
United_States
500
Rep
669
Posts

Drives: E70 E90 E91
Join Date: Mar 2016
Location: Christmas Valley, CA

iTrader: (1)

Garage List
Quote:
Originally Posted by johnnyorange View Post
im so curious to see how this turns out.
It turned out ok, though recovery path was painful.

- recreated previously corrupted hbnavi, hbuser and hbmedia partitions
- copied data from E91 disk image backup into these 3 partitions only
- imaged CF card.

I am back to 2020 Maps, but with functional nav.
CF card feels super fast.
I'll do 2023 upgrade later in the fall

CF card clone note
select 8192 block size when using dd on macos to write image back to CF card .
The default 512 is super slow (512K/s with 19MB/s)

Lesson learned
Do not repeat my mistake - have at least one full disk backup before any operation, including map upgrade
__________________

Last edited by POBEP; 06-10-2023 at 01:06 PM..
Appreciate 1