Are fastboot rooms created from recovery roms? - Redmi Note 8 Pro Questions & Answers

Why do some devices have fastboot roms while others don't?
Do developers create them from the recovery roms?

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[DEV] recovery

attached is a semi-working recovery, you can flash it with "fastboot flash recovery recovery.img".
update: the recovery can flash boot.img's too, if the custom rom uses "dd" instead of "write_raw_image" to flash the boot.img. i hope mike updates his rom
don't use anything except for "install from sdcard"
i take no responibility for any harm to your device or data
it's basicaly a repacked cwm recovery combined with the stock 1.26 recovery kernel/ramdisk with modifications to init.rc
it is intented for developers wanting to toy around with custom roms, until someone makes a real recovery
no support nor updates will be made for this
is it tested or not yet.
I've tested it
ok thanks, since currently there is no other option to unlock bootloader other than htcdev & lack of RUU sources is too risky to flash custom recovery at this point. so technically it will skip zip package signature check? so we can start working on working custom rom.
You can always flash the stock recovery again ith fastboot
The reason why this recovery is useful is because i dont have to repack system qnd userdata images with ext4. Plus, you can update the userdata partition. Flashing with fastboot erases it
looks nice!
could you maybe share your knowledge about creating this recovery? i'm trying the same for the one s but can't get it packed together correctly...
blubbers said:
You can always flash the stock recovery again ith fastboot
The reason why this recovery is useful is because i dont have to repack system qnd userdata images with ext4. Plus, you can update the userdata partition. Flashing with fastboot erases it
Click to expand...
Click to collapse
Understand. My concern is no RUU for my device available yet & im afraid to use from other region stock rom Thanks for ur effort.
Do I have to unlock my phone to install this recovery?
moom999 said:
Do I have to unlock my phone to install this recovery?
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Click to collapse
yes, there are only 2 ways of installing a recovery.
fastboot and adb
fastboot requires you to unlock in order to "fastboot flash recovery"
and in order to possibly do it through adb you need root and in order to get root at the minute you need to be able to flash an insecure boot image through fastboot, which again, you need to unlock in order to "fastboot flash boot"
Hi blubbers,
There is a guy on general thread who wants to dump a developer phone. It's s4 not tegra but might help.
http://forum.xda-developers.com/showthread.php?p=24496390
sent from my HTC one X using tapatalk

How to extract recovery images from existing roms? Or is there a working TWRP site?

The recovery images all over this site seem really sketchy, but roms often come with great recovery and updates. I can flash the rom's boot.img during the update, but I also see that fastboot has a flash to recovery option. Is it OK to flash the boot.img to recovery or do I have to somehow extract recovery out of the boot.img? If I do a flash to recovery does that make TWRP permanent or can it still be overwritten by flashing new roms?
bananabytes said:
The recovery images all over this site seem really sketchy, but roms often come with great recovery and updates. I can flash the rom's boot.img during the update, but I also see that fastboot has a flash to recovery option. Is it OK to flash the boot.img to recovery or do I have to somehow extract recovery out of the boot.img? If I do a flash to recovery does that make TWRP permanent or can it still be overwritten by flashing new roms?
Click to expand...
Click to collapse
Get twrp from here - http://forum.xda-developers.com/sony-xperia-z1-compact/general/twrp-3-0-1-amami-t3350827 and flash with Rash for non-stock roms. For stock roms, net's xzdr is best - http://nut.xperia-files.com/
If a rom has a recovery included, it will probably overwrite your recovery. For best staying power, make sure you use real recovery - http://forum.xda-developers.com/son...ral/bootloader-devices-real-recovery-t3117568 but even then you might still have to reflash your img, depending on the rom you install.
levone1 said:
Get twrp from here - http://forum.xda-developers.com/sony-xperia-z1-compact/general/twrp-3-0-1-amami-t3350827 and flash with Rash for non-stock roms. For stock roms, net's xzdr is best - http://nut.xperia-files.com/
If a rom has a recovery included, it will probably overwrite your recovery. For best staying power, make sure you use real recovery - http://forum.xda-developers.com/son...ral/bootloader-devices-real-recovery-t3117568 but even then you might still have to reflash your img, depending on the rom you install.
Click to expand...
Click to collapse
Thank you so much. I had the latest TWRP from the AICP rom but it was within the boot image and I couldn't seem to find a plain TWRP image that wasn't on some sketchy thread.
Also I was unaware that my firmware was out of date. When I was installing a rom I saw a number that related to the latest firmware so I assumed I had it. I was confused why using flashboot to flash to recovery wasn't working. It looks like the recovery image was always within the boot image and was getting wiped out with roms that didn't include a recovery image in there (AH HEM PARANOID ANDROID). It seems that I was able to flash the img to the special recovery now and I don't think it's getting wiped out. Thanks very much.

Flash TWRP in the FOTAkernel mode

Hello everyone!
I'm here to ask help with my Xperia ZL.
I unlocked the bootloader, flashed the last TWRP odin available as boot.img through fastboot (fastboot flash boot boot.img), flashed LineageOS 14.1, Open GApps, SuperSU and everything is ok, phone working 1000x better than the stock Sony rom and rooted.
The problem is that my TWRP gone from the recovery. The recovery available is the LineageOS recovery, very limited. After some google, i found that sony don't have a recovery partition, so the custom os overwrite the recovery and bla bla bla.... So, i found that is possible to flash the recovery to the FOTAKernel to maintain my TWRP after flash a custom rom. I tried using the Xperia Recovery Manager, but the app stuck on my device when i try to format or flash fota, i tried Flashfy, but the app stuck when i go to select the file to flash...
So, i'm here to ask to you: "How is the best way to flash twrp in my fotakernel, to maintain it as my primary recovery even after flash any custom rom?"
I'm available for discuss and waiting for you help. Thanks anyway
The TWRP homepage lists using a terminal emulator in LOS as an option: (Link)
whether flashing to the FOTAKernel partition is dangerous?
[email protected] said:
whether flashing to the FOTAKernel partition is dangerous?
Click to expand...
Click to collapse
My device is Z5. Flashing TWRP to the FOTAKernel is working, recovery parition is not

GSI installation procedure on Mate SE?

So I managed to root+unlock my Mate SE bootloader and test drive a couple of GSI roms, mainly from OpenKirin. The problem is they take their sweet time to release new builds (RR latest build is from september, for example) and I'd like to try some other roms.
However, most of the roms from Phhusson don't run and roms from other sources require twrp, which on my phone has been totally useless with all kinds of errors and totally unable to flash anything at all, so I'm stuck with fastboot roms.
Is there a specific sequence in which I have to do things in order to flash roms that require twrp?
So far, the only way I can install roms is fastboot mode -> fastboot flash image -> boot to recovery -> factory reset+wipe -> reboot to system. Any other way doesn't work for me. Also, what is an oreo/pie friendly version of twrp for the Mate SE?
I also have the Mate SE but use TWRP and around 3/4 work from on the treble roms page work, maybe you could try using the TWRP method (theres a guide on here named something like how to install resurrection remix)
Thanks a lot! Can you point me to a twrp that's proven to work on pie roms?

Fastboot and recovery miui roms

Is there any difference between fastboot and recovery miui roms as they differ in size. Any performance difference or anything.

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