Bullet M2HP install

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Mo-Norfolk
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Joined: 09 Apr 2021
Posts: 7

PostPosted: Fri Apr 09, 2021 15:58    Post subject: Bullet M2HP install Reply with quote
Hi,
Has anyone successfully flashed this device recently ?
Any details on versions etc appreciated.
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Mo-Norfolk
DD-WRT Novice


Joined: 09 Apr 2021
Posts: 7

PostPosted: Fri Apr 09, 2021 16:29    Post subject: Bullet M2HP install Reply with quote
I'll answer my own question and help future searchers.
Just Google ubnt_bullet_m2_hp
kernel-panic69
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Joined: 08 May 2018
Posts: 9035
Location: Texas, USA

PostPosted: Fri Apr 09, 2021 16:55    Post subject: Reply with quote
https://www.google.com/search?q=Bullet+M2HP+install+dd-wrt

https://www.google.com/search?q=Bullet+M2HP+install+dd-wrt+site:forum.dd-wrt.com

Doesn't really seem like many people are collaborating under this sub-forum, likely because it discusses paid activation devices, and the general rule of thumb is that there is no public community support for the paid activation devices, but I think that is irrelevant anymore. If people aren't chiming in or publicly discussing UBNT devices on here, that is a failure on the community's part.

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Mo-Norfolk
DD-WRT Novice


Joined: 09 Apr 2021
Posts: 7

PostPosted: Sat Apr 10, 2021 12:05    Post subject: Reply with quote
Hello,
Thanks.
There is obviously work going on because though I found the BETA for the Bullet M2(HP) dated last month.
Interestingly it states:
In recent factory firmwares Ubiquiti prevents any installation of third Party
firmwares by using signed firmwares. any unsigned firmware cannot be installed.
since it is not possible to downgrade this firmware to a previous version which
did not go that idiot move it is required to use a special flashing method.


Useful info as all the posts regarding this device are many years old now.
I suspect though that the drivers have been updated by the team recently probably BECAUSE it needs paid activation, developers have to get paid somehow but conversely if you pay you would expect something that works and is up to date. One would also expect some sort of support though. This is obviously not the place for the reasons you gave.
Mo-Norfolk
DD-WRT Novice


Joined: 09 Apr 2021
Posts: 7

PostPosted: Fri Apr 16, 2021 18:40    Post subject: Bullet M2HP install Reply with quote
Hi,
I used the latest image I could find from the Beta directory for the Bullet2M(HP). Dated this month.

Copied over the flash install file into tmp as per instructions.

On running the bin file, it complained of a missing directory (could not create) in /proc/ (which does exist) and then exited.. I forget the exact file, should have written it down.
Now I can't SSH into it, tried all the IP's assigned on the network, nothing works.
I take it its bricked. The lights are twinkling though so its not totally crashed.
Is there any other way to gain access and try again? I have another device but am loath do repeat the process without some more info.
Any suggestions?
Mo-Norfolk
DD-WRT Novice


Joined: 09 Apr 2021
Posts: 7

PostPosted: Fri Apr 16, 2021 18:52    Post subject: Bullet M2HP install Reply with quote
Better still, I could send the other device to someone more knowledgeable to see if they can install DD-wrt on it. (Paid of course)
I can only assume the flash image needs updating, I followed the instructions to the letter.
kernel-panic69
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Joined: 08 May 2018
Posts: 9035
Location: Texas, USA

PostPosted: Sat Apr 17, 2021 5:43    Post subject: Reply with quote
I forgot about this sticky:

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=45474

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Mo-Norfolk
DD-WRT Novice


Joined: 09 Apr 2021
Posts: 7

PostPosted: Sat Apr 17, 2021 9:09    Post subject: Bullet M2HP install Reply with quote
Hi,
Yes I'd forgotten that too. Ooops.. Wink
I can re-instate the stock firmware by tftp so not bricked.. phew.
I tried again and I had the same issue, this time I made a note.
Initially an error.. /proc/ubnthal/.uf is a non existent directory.
Then theres:
unlocking kernal
writing kernal
unlocking rootfs
..Done.

/proc/ubnthal does exist

Unsure what to try next as I can't downgrade to a pre-signed firmware version. I still can't SSH into it or ping it once flashed, until I revert to stock AirOs firmware.
kernel-panic69
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Joined: 08 May 2018
Posts: 9035
Location: Texas, USA

PostPosted: Sat Apr 17, 2021 17:42    Post subject: Reply with quote
You should be able to downgrade to and older version of stock firmware via ssh. Perhaps the oldest version available. That may be the issue.
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Mo-Norfolk
DD-WRT Novice


Joined: 09 Apr 2021
Posts: 7

PostPosted: Sat Apr 17, 2021 22:07    Post subject: Reply with quote
Hi.
That used to be the way with this device I'm told.
Now they have a signed firmware so you can only downgrade a few step since they introduced it. I tried, doesn't work any more.

I quote the install instructions below, from download site at https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2021/04-13-2021-r46329/ubnt_bullet_m2_hp/.


In recent factory firmwares Ubiquiti prevents any installation of third Party firmwares by using signed firmwares. any unsigned firmware cannot be installed.
since it is not possible to downgrade this firmware to a previous version which did not go that idiot move it is required to use a special flashing method. simply copy flash-upgrade.bin with scp/winscp to your ubiquiti device into the /tmp directory. login with ssh to your ubiquiti device and execute the following lines
chmod 700 /tmp/flash-upgrade.bin
/tmp/flash-upgrade.bin

the router will now flash itself. once ths command has finished, simply powercycle your device.


Seems simple enough but doesn't work for my M2(HP)'s. Shame really cos I was obviously was going to activate both of them and pay for the extended frequencies as I am licenced to use some of the the 2.3GHz band.
I think I'll have to try Open-WRT. They have a fix for this signed firmware issue but looks like I'll have to re-compile the package after editing to get what I want.

Thanks for your help anyway.
kernel-panic69
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Joined: 08 May 2018
Posts: 9035
Location: Texas, USA

PostPosted: Sat Apr 17, 2021 22:53    Post subject: Reply with quote
Well, unless there was some kind of magic voodoo added to the file in question to make it update, you could always try this method to downgrade stock firmware or to flash DD-WRT:

https://help.ui.com/hc/en-us/articles/204959804-airMAX-How-to-Upgrade-the-Firmware-Via-CLI-SSH

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DON'T use Chromium-based browsersRTFM/STFW TL;DR is NOT an excuse. • Why Should I Care What Color the Bikeshed Is?
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