Unable to wipe system partition on Redmi Note 9 Pro - General Questions and Answers

Hi everybody!
I'm trying to wipe the system partition on my redmi note 9 pro to install a costum rom ( Pixel Experience).
However I'm just not able to do that because there just isn't the option: when I try to wipe all data there isn't the system partition.
I tried both with Twrp and Orange Fox.
the error I encounter is unable to update logical partition "/system_ext".
Do you know how to fix this? Fortunately my device still works, I managed not to brick it somehow. But I would really like to install the Pixel Experience
Thank you for your time, hope you'll respond soon!

post screenshot of issue ...

psychotanc said:
Hi everybody!
I'm trying to wipe the system partition on my redmi note 9 pro to install a costum rom ( Pixel Experience).
However I'm just not able to do that because there just isn't the option: when I try to wipe all data there isn't the system partition.
I tried both with Twrp and Orange Fox.
the error I encounter is unable to update logical partition "/system_ext".
Do you know how to fix this? Fortunately my device still works, I managed not to brick it somehow. But I would really like to install the Pixel Experience
Thank you for your time, hope you'll respond soon!
Click to expand...
Click to collapse
for what purpose do you want to wipe this partition?? there is no need to do that.
What should I wipe in TWRP?
If you are switching ROMs (changing from one ROM to a completely different one) then you should perform a factory reset. A factory reset wipes data and cache...
twrp.me

WoKoschekk said:
for what purpose do you want to wipe this partition?? there is no need to do that.
What should I wipe in TWRP?
If you are switching ROMs (changing from one ROM to a completely different one) then you should perform a factory reset. A factory reset wipes data and cache...
twrp.me
Click to expand...
Click to collapse
Actually he DO NEED to wipe system partition before installing a new system. And I got the same problem

FlavioHuster said:
Actually he DO NEED to wipe system partition before installing a new system. And I got the same problem
Click to expand...
Click to collapse
No, you flash a complete image of /system and it doesn't matter if there is any data stored on it. Everything gets overwritten.

WoKoschekk said:
No, you flash a complete image of /system and it doesn't matter if there is any data stored on it. Everything gets overwritten.
Click to expand...
Click to collapse
Didn't know about it. So every time I want to install a new ROM I just flash it? And thanks for the answer!

FlavioHuster said:
Didn't know about it. So every time I want to install a new ROM I just flash it? And thanks for the answer!
Click to expand...
Click to collapse
Yes, that's right. Just wipe /data when flashing a new ROM.

Related

[CM11] Upgrading M2->M3 issue

Hello everyone,
I installed the M3 version of CM11 tonight but after i flashed it via CWM when I unlock the screen I have an error about Trebuchet saying that it stopped. The error appears after every reboot.
I also lost all of my screens adjustments (icons, widgets, ...).
I switched back to my M2 backup for now
If you have any advice.. you're welcome! ;]
Fata7 said:
Hello everyone,
I installed the M3 version of CM11 tonight but after i flashed it via CWM when I unlock the screen I have an error about Trebuchet saying that it stopped. The error appears after every reboot.
I also lost all of my screens adjustments (icons, widgets, ...).
I switched back to my M2 backup for now
If you have any advice.. you're welcome! ;]
Click to expand...
Click to collapse
Backup your files and do a full wipe when you flash M3, this is the best solution imo.
gee2012 said:
Backup your files and do a full wipe when you flash M3, this is the best solution imo.
Click to expand...
Click to collapse
I'm new in this world, so can I will ask this question :
Will the full wipe delete every datas on my phone? Even the backups?
Fata7 said:
I'm new in this world, so can I will ask this question :
Will the full wipe delete every datas on my phone? Even the backups?
Click to expand...
Click to collapse
No, the backups will not be deleted.
In recovery:
- data factory reset
- wipe cache and dalvik cache
- Flash M3 and you`re done and there should be no fc`s anymore
Fata7 said:
I'm new in this world, so can I will ask this question :
Will the full wipe delete every datas on my phone? Even the backups?
Click to expand...
Click to collapse
The data/factory reset that gee2012 is suggesting will wipe your installed apps and app data from your phone, but wont touch anything on your sd card which includes backups.
I would think going from M2 to M3 would only require a cache and dalvik cache wipe though.
gee2012 said:
No, the backups will not be deleted.
In recovery:
- data factory reset
- wipe cache and dalvik cache
- Flash M3 and you`re done and there should be no fc`s anymore
Click to expand...
Click to collapse
Thank you, but is there a way to get back my old M2 adjustments and apps? Or should I restart everything?
Fata7 said:
Thank you, but is there a way to get back my old M2 adjustments and apps? Or should I restart everything?
Click to expand...
Click to collapse
If as you say you have fc`s i would suggest a clean install with a full wipe.
gee2012 said:
If as you say you have fc`s i would suggest a clean install with a full wipe.
Click to expand...
Click to collapse
I think I have no choice, thank you

Factory reset in ROMs buggy

Hi, I'm not sure if I'm the only one experiencing this but when I select the factory reset option in custom ROMs like Cyanogenmod and Paranoid Android on my Moto G it reboots and comes up with a flashing android but does nothing. It just sticks and when force rebooted nothing has changed.
I haven't formatted /system if that could be the issue
Any help would be greatly apprecaited
TechMinerUK said:
Hi, I'm not sure if I'm the only one experiencing this but when I select the factory reset option in custom ROMs like Cyanogenmod and Paranoid Android on my Moto G it reboots and comes up with a flashing android but does nothing. It just sticks and when force rebooted nothing has changed.
I haven't formatted /system if that could be the issue
Any help would be greatly apprecaited
Click to expand...
Click to collapse
Anyone ? Surely I can't be the only one!
I have had the same issue. Here is what I think is happening. Cyanogenmod factory reset is bascially the wipe /data and /cache in recovery. I think the factory reset button in the UI is sending commands to the recovery. When I did this it glitched out and I hard shutdown my phone. Then I manually went into recovery and used the option to format /data and /cache. Then I rebooted and everything was working again.
skyguy126 said:
I have had the same issue. Here is what I think is happening. Cyanogenmod factory reset is bascially the wipe /data and /cache in recovery. I think the factory reset button in the UI is sending commands to the recovery. When I did this it glitched out and I hard shutdown my phone. Then I manually went into recovery and used the option to format /data and /cache. Then I rebooted and everything was working again.
Click to expand...
Click to collapse
Same, I was wondering if there was a way to get the one inside the phones ROM working though, surely there must be a logical solution like /system wipe before install
Doesn't seem like a big problem at this point so....
skyguy126 said:
Doesn't seem like a big problem at this point so....
Click to expand...
Click to collapse
Yes I suppose but it still unnerves me as I don't know what It could do if left like that e.g. Corrupt memory/IMEI
At least for me I wouldn't go about wiping system partition because is might brick your phone. As far as I know you won't need to wipe system to flash a custom ROM.
skyguy126 said:
At least for me I wouldn't go about wiping system partition because is might brick your phone. As far as I know you won't need to wipe system to flash a custom ROM.
Click to expand...
Click to collapse
Hmmm, I wonder what is the cause of the issue, it's really irritating.
You have to ask someone else more experienced I'm afraid.
skyguy126 said:
At least for me I wouldn't go about wiping system partition because is might brick your phone. As far as I know you won't need to wipe system to flash a custom ROM.
Click to expand...
Click to collapse
Hmm, just done some reading. On this ROM it requires you to format /system
http://forum.xda-developers.com/showthread.php?t=2749854
Wouldn't formating the /system screw up the kernel. And wouldn't screwing up the kernel mean a bricked device.
skyguy126 said:
Wouldn't formating the /system screw up the kernel. And wouldn't screwing up the kernel mean a bricked device.
Click to expand...
Click to collapse
No, as long as we can get into bootloader and/or recovery we are set. /System just contains the ROM files as far as I'm aware. The kernel is stored somewhere else

Cannot decrypt using TWRP

Hi guys,
Just looking for some advice - I have tried to read as much as I could before posting, and still don't really know what I'm doing wrong, so here goes:
I purchased an ATT branded A9, sim-unlocked it and am trying to convert it to the US unlocked version using the guide in this forum. I have managed to unlock bootloader, install TWRP 3.0.2, but when I try to decrypt storage by using the Format data optionthis is what I get:
Failed to decrypt data.
Unable to decrypt data with default password. You may need to perform a Format Data.
Updating partition details....
....done
Unable to mount storage
Full SELinux support is present.
Formatting Data using make_ext4fs...
You may need to reboot recovery to be able to use / data again.
Updating partition details...
...done
I have come close to bricking twice now - have managed to revive it both times, but am coming close to giving up and just dealing with the bloat and lack of 6.0.1 - any help would be greatly appreciated.
Make Wipe Data in Advanced Wipe before installing supersu.zip
romanch said:
Make Wipe Data in Advanced Wipe before installing supersu.zip
Click to expand...
Click to collapse
Its working?After that i can make backup from data woth TWRP?
krepsz said:
Its working?After that i can make backup from data woth TWRP?
Click to expand...
Click to collapse
If it works, obviously do before a general backup.
At the beginning I suffered with this, but no more
Thanks for replying, however I have already tried this and get the same result. I also tried doing a factory reset to remove encryption BEFORE installing TWRP and that didn't change anything, either.

Can't start any Custom Rom

Hi there,
so I just wanted to install Pixel Expierence, because i wanted something new after Lineage. After flashing the right Version with wiping cache, data, system and dalvic, the phone is starting in twrp again. When I tried restoring my full backup, it reboots to TWRP again. I tried installing many different custom roms but nothings happens.
I did have Magisk and some Xposed stuff to have Snapchat etc. .
Can somebody help?
You need to perform a data format even after using Lineage as it encrypts the file system. (this will erase everything from your phone so you need to make a backup)
malimukk said:
You need to perform a data format even after using Lineage as it encrypts the file system. (this will erase everything from your phone so you need to make a backup)
Click to expand...
Click to collapse
Holy **** thank you. It works.
C0OUBOT said:
Holy **** thank you. It works.
Click to expand...
Click to collapse
You can use a remove forced encryption patch, or easier, just use orangefox recovery and remove forced encryption automatically. Then ofc you are not encrypted, but don't need to format data everytime when changing Rom.

Internal Storage Wiped

Hi everyone,
today, I wanted to flash a new ROM. I've wiped the internal storage. Was this wrong?
How did you wipe the partition? TWRP?
If so, it should be akin to a factory reset. User data and apps will be gone but system should be OK.
V0latyle said:
How did you wipe the partition? TWRP?
If so, it should be akin to a factory reset. User data and apps will be gone but system should be OK.
Click to expand...
Click to collapse
Yes, TWRP was used. Glad to hear I didn't bricked my device. I wanted to clean flash the ROM anyway. Thanks!
doxts said:
Yes, TWRP was used. Glad to hear I didn't bricked my device. I wanted to clean flash the ROM anyway. Thanks!
Click to expand...
Click to collapse
Internal Storage in TWRP refers to the part of /data that is used specifically for "common storage" by all apps - such as media, downloads, etc.
If you want to perform a clean flash, wipe /data. This is the same as a factory reset, and if you're flashing a different ROM than what you had before, you should absolutely do this.
Thanks for the clarification. That makes sense. I must've confused Internal Storage wipe with something else.

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