failed to mount partition '/vendor' (invalid argument)

[digger16309]

I got a new OP5 (had a OP3). I unlocked the bootloader, installed TWRP, and was looking to root and load LOS 15.1.

I did that, sort of, but then got spooked because every zip I flashed, I got this error:

failed to mount partition '/vendor' (invalid argument)

I flashed back to stock and all seemed well, though I also got stock recovery. When I installed TWRP again and then a custom kernel, I got the same error. Then I couldn't boot with the custom kernel and now I'm headed back to stock.

When I go in to Mount in TWRP, it won't let me select vendor to be mounted.

What's causing that and how do I fix it?

 

[Revenant Ghost]

TWRP is just complaining about the missing 'vendor' partition, that only exists in Project Treble ROMs. Therefore, there's nothing to fix. Ignore the error.

 

[Dirk]

https://forum.xda-developers.com/showpost.php?p=76621704&postcount=285

That one has been modified to remove the warning.

 

[Elleby]

As already wroted, it's just a "cosmetic" bug. Imho it's not a good thing to fix it: every time TRWP release a new patch of their software, you have to wait a lone programmer that modifies the new patch in order to remove this message error.
Consider also this: with next release of Android, named P for now, that is already available as beta for Oneplus 6, the project Treble will be mandatory and not optional as for Android Oreo. There are already some rumors that Oneplus 5/5T will receive update to Android P, and the problem with vendor partition will be gone forever.

 

[shadowstep]

As already wroted, it's just a "cosmetic" bug. Imho it's not a good thing to fix it: every time TRWP release a new patch of their software, you have to wait a lone programmer that modifies the new patch in order to remove this message error.
Consider also this: with next release of Android, named P for now, that is already available as beta for Oneplus 6, the project Treble will be mandatory and not optional as for Android Oreo. There are already some rumors that Oneplus 5/5T will receive update to Android P, and the problem with vendor partition will be gone forever.

That's true, but till then, this lone programmer (me ) will patch any updated TWRP that is released so that the the error isn't displayed if you aren't on a treble-compatible ROM.

 

[digger16309]

Thanks all. That makes sense, and also explains why I didn't see it previously with TWRP for OP3.

 

[Astur_Torque]

As already wroted, it's just a "cosmetic" bug. Imho it's not a good thing to fix it: every time TRWP release a new patch of their software, you have to wait a lone programmer that modifies the new patch in order to remove this message error.
Consider also this: with next release of Android, named P for now, that is already available as beta for Oneplus 6, the project Treble will be mandatory and not optional as for Android Oreo. There are already some rumors that Oneplus 5/5T will receive update to Android P, and the problem with vendor partition will be gone forever.

Source of this, please?

 

[shadowstep]

Source of this, please?

Check out this article, point 3 under "Will my device benefit from Project Treble".

 

[Elleby]

Official statement on Oneplus forum. That part in particular:

Over 135,000 of our users signed up to review the OnePlus 6 early via The Lab. With the OnePlus 6 device in their hands, they'll be among the first in our community to be able to download the Android P Build. (OnePlus 5/5T friends, we'll have something nice lined up for you later this year.)

For me that means that they will release Android P on Oneplus5/5T after the initial release for Oneplus 6.

And Project Treble mandatory, link on discussion on reddit. That part in particular:

Devices launching with Android O will come Treble-enabled out of the box.

 

[Astur_Torque]

Check out this article, point 3 under "Will my device benefit from Project Treble".

But there does not mention anything about that is compulsory Treble on Android P (on preoreo phones), just it says its compulsory on Oreo recent-released devices

 

[shadowstep]

But there does not mention anything about that is compulsory Treble on Android P (on preoreo phones), just it says its compulsory on Oreo recent-released devices

It's true for Android Oreo and above. Treble is the reason why there are Android P Betas available for non-Google devices. Also, here's an excerpt from this article: "Going forward, updates to phones will become far more common, as all devices that launch with Android Oreo or newer are required to implement Treble."

 

[Astur_Torque]

It's true for Android Oreo and above. Treble is the reason why there are Android P Betas available for non-Google devices. Also, here's an excerpt from this article: "Going forward, updates to phones will become far more common, as all devices that launch with Android Oreo or newer are required to implement Treble."

Yes I agree with you with that... However... "All devices launched with oreo"... One plus 5 is not one of those... Just 6 and incoming..

Enviado desde mi Oneplus 5 mediante Tapatalk

 

[shadowstep]

Yes I agree with you with that... However... "All devices launched with oreo"... One plus 5 is not one of those... Just 6 and incoming..

You're spot on. I never said that OP5/5T will definitely get Treble. Also, I'm not the OP, if you haven't realized that yet. OnePlus got away with having to mandatorily provide Treble to the OP5/5T by launching the device with Nougat (but making it upgradeable to Oreo) -- meaning that these devices don't come under the category of devices that launch with Android Oreo, thereby putting OnePlus under no compulsion to provide Treble to these devices. However, there are rumours that have been floating around that even though there is no compulsion, OnePlus is considering providing Treble to these devices.