Fastboot unknown option --dm verity - Realme 7 Questions & Answers

Hello Everyone
Last time i flashed the command fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
And
fastboot flash boot magisk_patched.img
And my phone was rooted successfully
But i unrooted it again....
And now when i try to root and enter command fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img it says unknow option --dm verity ......
Help me out pls

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narayan chetri said:
Hello Everyone
Last time i flashed the command fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
And
fastboot flash boot magisk_patched.img
And my phone was rooted successfully
But i unrooted it again....
And now when i try to root and enter command fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img it says unknow option --dm verity ......
Help me out pls
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RMX2155 or 2MX2151?

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OrthodoxOxygen said:
RMX2155 or 2MX2151?
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RMX 2151 bro

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OrthodoxOxygen said:
RMX2155 or 2MX2151?
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I have the same issue, could you help?

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narayan chetri said:
RMX 2151 bro
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yoboy44 said:
I have the same issue, could you help?
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Did you make sure that USB debugging was turned on via the developer settings?
Try this guide, maybe:
OnePlus Community
Introducing our new OnePlus Community experience, with a completely revamped structure, built from the ground-up.
forums.oneplus.com
Lemme know if it works.

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Do you use the newest version of adb & fastboot? (older version had problem with the parameter)
Are you sure that verity is not disabled already? (try it without the parameter)

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I have the same problem in when i try in Windows Power Shell.
I open cmd as administrator and start working for me .
Hope this can help to someone .

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HeiloWorid said:
I have the same problem in when i try in Windows Power Shell.
I open cmd as administrator and start working for me .
Hope this can help to someone .
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Didn't work for me

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KillSkill said:
Didn't work for me
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Flashing a blank vbmeta does the trick, don't need of a special command.

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narayan chetri said:
Hello Everyone
Last time i flashed the command fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
And
fastboot flash boot magisk_patched.img
And my phone was rooted successfully
But i unrooted it again....
And now when i try to root and enter command fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img it says unknow option --dm verity ......
Help me out pls
Click to expand...
Click to collapse
YOU HAVE TO USE FASTBOOT FROM ANDROID PLATFORM TOOLS FOR WINDOWS
SDK Platform Tools release notes | Android Studio | Android Developers
Android SDK Platform-Tools is a component for the Android SDK.
developer.android.com
here's its direct link :
https://dl.google.com/android/repository/platform-tools_r33.0.1-windows.zip

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HeiloWorid said:
I have the same problem in when i try in Windows Power Shell.
I open cmd as administrator and start working for me .
Hope this can help to someone .
Click to expand...
Click to collapse
Thank you so much. This actually helped me rooting my Oneplus 7 Pro with Magisk instructions. I was using Powershell, but got the error "unknown option -- disable-verity".
It worked in CMD.
Thanks!

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snsgn said:
It worked in CMD.
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I've always had a sneaking distrust of Powerhell and its pedantic error messages.
I presume that these problems are a case of cmd and PS finding different versions of fastboot.
Just run fastboot --version in both to see if they are different.
A separate topic
In Windows and in Linux the default argument handling is based on the C language.
That means that fastboot flash recovery recovery.img gets changed to an array of 4 strings.
There is quoting and escaping and evaluation going on there too.
Windows has the GetCommandLine() which returns the command line as a single string.
This all sounds good, but a program can be executed in code with an array of strings too and the "command line" has to be manufactured after the fact.
This can lead to some complicated differences.
I think it's best to ignore that GetCommandLine() even exists.
Also, I noticed a peculiarity about GetCommandLine().
In cmd fastboot flash recovery recovery.img gets turned into:
C:\Dir\Subdir\fastboot.exe flash recovery recovery.img,
while PS turns it into:
"C:\Dir\Subdir\fastboot.exe" flash recovery recovery.img
Even when there are no spaces in the path.
Undoubtedly this breaks some Windows programs using GCL.
OTOH, adb and fastboot stick to straight C language handling, so this is not that.