Question LineageOS error boot prepare

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moniker5438

Member
Dec 27, 2021
6
0
Hello,

I had LineageOS running for some time without any issues.

Then I tried to install a fresh copy of LineageOS by fastbooting the most recent recovery image like this:
fastboot flash vendor_boot <recovery_filename>.img

This command works and says "OKAY" and "Finished" but now I'm stuck in Fastboot Mode with "error boot prepare" and it won't launch into Recovery Mode.

How do I start over with a fresh recovery image?

Thank you
 
Last edited:

ipdev

Recognized Contributor
Feb 14, 2016
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Google Nexus 10
Nexus 7 (2013)
Hello,

I had LineageOS running for some time without any issues.

Then I tried to install a fresh copy of LineageOS by fastbooting the most recent recovery image like this:
fastboot flash vendor_boot <recovery_filename>.img

This command works and says "OKAY" and "Finished" but now I'm stuck in Fastboot Mode with "error boot prepare" and it won't launch into Recovery Mode.

How do I start over with a fresh recovery image?

Thank you
Not sure if it will help but, sometimes you might need to...
- Flash the same version of the boot image.
- Flash both slots with the same version.

[ fastboot flash boot boot.img ]

[ fastboot --slot all flash vendor_boot vendor_boot.img ]
[ fastboot --slot all flash boot boot.img ]

Cheers. :cowboy:
 

moniker5438

Member
Dec 27, 2021
6
0
Thanks for your response. This issue is resolved.

About a year ago, I originally installed MicroG LineageOS (lineage.microg.org) and used their recovery image and build with no issues.

Now, for some reason, that exact same recovery image doesn't work anymore and gives "error boot prepare". Similarly, the latest version of the MicroG LineageOS recovery image gives "error boot prepare".

The only recovery image that would work is vendor_boot.img from LineageOS (without MicroG):
https://mirror.math.princeton.edu/pub/lineageos/full/barbet/ (in my case 20220915)

Using that I could adb sideload the latest MicroG LineageOS (from 20220915)