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      12-24-2023, 12:36 PM   #103
POBEP
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Drives: E70 E90 E91
Join Date: Mar 2016
Location: Christmas Valley, CA

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Quote:
Originally Posted by StradaRedlands View Post
OK, you stumped me on this one... this is approaching scary land for me. First I've heard of it, is this a pretty good guide? https://www.e90post.com/forums/showthread.php?t=1426773
I can swap OFHG and radiators all day, but I hate stuff like this...
StradaRedlands - yes, the ^ is THE guide.

It helped me with recovery when my E70's HDD took a dump during 2023 map upgrade.

However, it could be greatly simplified if the goal is to keep your NAV operational (before HHD fails) and make maps reasonably responsive (CF Card upgrade).
The effort becomes no more complex than the work you've done to replace front right door handle.

In short, your steps will be
- take off trim, pull HDD drive out
- back up entire HDD to a file (no need to worry about individual partitions)
- store old hdd in a safe place (tag it with VIN number using permanent marker)
- restore file backup into a CompactFlash card
- put CF card with IDE adapter in the CIC slot, re-assemble trim.

On linux/mac you can backup (and restore) entire drive using single command.
Remember to replace if(source) and of (destination) with your actual device handles reported my linux/macos

To backup
Code:
dd if=/dev/<hdd_block_device_handle> of=/path/to/backup/file
To restore, use block size 8192 with CompactFlash card, 10x faster than default 512
Code:
sudo dd if=/path/to/backup/file of=/dev/<cfcard_block_device_handle> bs=8192
I failed to make a backup for my E70, and then spent a week re-building partitions, etc
https://www.e90post.com/forums/showthread.php?t=1716221 post #11+ - this NOT where you want to be.
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