[Q] Dual booting between two different roms - Droid Eris Q&A, Help & Troubleshooting

I know it isn't possible to dual boot with windows mobile and android on the eris but would it be possible two have two different roms installed on the same device? This could be done with nandroid backups I guess but I'm looking for something along the lines of booting into one rom shutting down selecting the other rom and booting to that.

This topic was made made 24 hours ago. The answer is yes but not on the Eris, which has too little internal storage space to dual boot anything. When phones start having 1GB of internal storage then we can talk about dual booting.

Related

[Q] Dualboot

Will a fully working dual boot be able to work on this phone? On the OG Epic i remember it was possible but since the phone did not have any internal storage the roms on the SD card would run very slow. Im wondering if there will be a fully working dual boot . Something like i could turn it off and switch to my other rom. And also off topic but anybody know when ubuntu is coming to android? (ubuntu.com)

Uhappy UP620 HELP!

Ok everyone, Damsel in distress here.
I've had an iPhone 4 (don't hate me) for the past 3 years now, just the other day I decided to upgrade and purchased a Uhappy UP620.
Great phone, vast improvement to what I previously had. There's just a slight problem that I can't seem to find a root guide for this phone.
I'm having problems trying to move apps from internal storage to my SD card and I've tried to download the APP2SD and also reformat the SD card, but no luck. Read somewhere deep in the dwellings of the internet that rooting the phone might work and seeing though its my last option that I haven't tried, I'm willing to give it a go.
Android 4.4.2 operating system with 1.7 Ghz MTK6592 Octa-core processor and 1 GB RAM+8GB ROM
tl;dr rooting guide for Uhappy UP620??
Cheers.

Really messed up Dual Boot :(

Hi everyone,
About a month ago I attempted to install dual boot Ubuntu Touch and Android on my Nexus 7 2012. I tried to install it by flashing the raring-preinstalled zip file but did not realise that there was another way to dual boot by using the app... The zip file shrunk the Android partitions and created the necessary Ubuntu Touch partitions. I know it's quite stupid of me but when I tried to restore using TWRP backup, it restored but when I looked at the amount of internal storage, I only had 6GB, compared to the actual 32GB!
Basically I need some help to remove the Ubuntu Touch partitions and enlarge the Android partitions back to normal.

Overmax Steelcore 1020 3g tablet. Partition

Hello All.
I'm new here and this is my second adventure with android. For the first time i got my sisters old galaxy s3 i managed to flash custom rom in couple of hours never having android before (im a BB user). That was easy.
But now i bought tablet Overmax Steelcore 1020 3g Kitkat 4.4.2. and as soon as i started to install apps tablet runed out of memory. It has 16Gb in total but for apps its only 1 giga. Was trying to move apps to sd card via menu, then i rooted it and trying move apps via link2sd and a dozen of similar tools. It was half-working becouse most of apps cannot be moved and even if they can its still impossible to to install some big app or game. Its like it needs to be install on internal memory and after that moved to sd. I Even formated my sd card into 2 partitions fat and ext2/4 becouse it suppose to extend apps memory. It didnt. Its not even possible to run recovery mode. The only combination of buttons vol- and pow can run some diagnostic mode, but thats all. In my research i found some (edited to have more rom memory) EBR files wich i suppose to put and replace original files in rom(downloaded from developer website) but couldnt even flash original rom. This is not a popular device so its really hard to find some info about it. I would be really gratefull for some advices, or maybe some easy obvious method that i might have overlooked. Better solution for me would be repartition from 12giga storage/1 giga rom to 5 giga storage/8giga rom in internal memory couse i dont need space for my files and its rather safer having apps on tablet than sd. Thanks in advance for any advices.

Two Partitions on my phone ?

Hey everyone
Here's what's happening ... I have an Samsung Galaxy SM-J500FN 2015 model phone,
a while ago I rooted it (back then it was under Android v5) ... I wanted to tweak some settings but I did something terrible, I played with KNOX.
Apparently KNOX and root don't go well together, my phone wouldn't boot anymore (rebooting loop).
Anyway, it was nothing, I just used Odin and a fresh new Official ROM (Android Marshmallow v6.0.1) and my phone was working again.
But now I discovered something, my phone is supposed to have an Internal Storage of 8GB, and that's the amount my memory settings show, but something was wrong with that, so I searched and after some time I understood that even though it said 8GB, my true storage was 4GB.
(More exactly I had 8GB but 4GB were constantly full, not even used by the system).
After a day I understood what might have happened :
My older ROM that has crashed wasn't erased when I flashed the new ROM, so now half of my Internal Storage is occupied by default meaning that I have two partitions on my phone (similar to when you install Windows and Linux on one PC).
But I cannot find any way to erase/reset my phone totally to get back those 4GB of memory.
If you have some applications, tricks, advice of some sort that could help me, I would really appreciate
Thank you for your time.
TovMachin said:
Hey everyone
Here's what's happening ... I have an Samsung Galaxy SM-J500FN 2015 model phone,
a while ago I rooted it (back then it was under Android v5) ... I wanted to tweak some settings but I did something terrible, I played with KNOX.
Apparently KNOX and root don't go well together, my phone wouldn't boot anymore (rebooting loop).
Anyway, it was nothing, I just used Odin and a fresh new Official ROM (Android Marshmallow v6.0.1) and my phone was working again.
But now I discovered something, my phone is supposed to have an Internal Storage of 8GB, and that's the amount my memory settings show, but something was wrong with that, so I searched and after some time I understood that even though it said 8GB, my true storage was 4GB.
(More exactly I had 8GB but 4GB were constantly full, not even used by the system).
After a day I understood what might have happened :
My older ROM that has crashed wasn't erased when I flashed the new ROM, so now half of my Internal Storage is occupied by default meaning that I have two partitions on my phone (similar to when you install Windows and Linux on one PC).
But I cannot find any way to erase/reset my phone totally to get back those 4GB of memory.
If you have some applications, tricks, advice of some sort that could help me, I would really appreciate
Thank you for your time.
Click to expand...
Click to collapse
Hi, how are you sir.
Ok, first thing you should know, that if your phone is labeled as an 8GB phone then you will only get 4GB no matter what you do, now there is no way that there are 2 roms on one system partition, what may be taking the space could be old data from the old rom like in /android folder and could possibly also be media files from apps that was installed in previous rom like Facebook photos, WhatsApp videos, pics, and voice messages...etc, installing stock rom with Odin doesn't erase any files, but it completely replaces the rom in system partition with new rom.
Okay I see, thank you.
But still, I've explored that 'Android' folder a few times, checked photos, documents, everything ...
Now what I don't really understand is this :
You will only get 4GB no matter what you do
Click to expand...
Click to collapse
.
Why is that ? Isn't there a way to access this memory ?
BTW : I didn't flash with Rooted Stock ROM, I used an Official Android 6.0.1 ROM from Samsung's Website
EDIT : My phone when started in Recovery Mode first says "No Command" with the Android Red Error logo, then opens the recovery mode like there never was no error involved ... That's one the things that made me say that my phone definitely had some issues with my older ROM.
TovMachin said:
Okay I see, thank you.
But still, I've explored that 'Android' folder a few times, checked photos, documents, everything ...
Now what I don't really understand is this :
.
Why is that ? Isn't there a way to access this memory ?
BTW : I didn't flash with Rooted Stock ROM, I used an Official Android 6.0.1 ROM from Samsung's Website
EDIT : My phone when started in Recovery Mode first says "No Command" with the Android Red Error logo, then opens the recovery mode like there never was no error involved ... That's one the things that made me say that my phone definitely had some issues with my older ROM.
Click to expand...
Click to collapse
the reason why you will get 4 only is because the 8GB includes system partition, data partition, cache, preload (if there is one) in addition to the space taken from the formatting, it's pretty much the same like when you buy a 8GB sdcard and you get only about 7.3GB, or when you buy a 16GB phone and you only have 11.5GB for media (my case..), or when you buy a 32GB phone and you find about 8GB already taken from the phone and you get to use about 23GB for media files (my dad's case and you'll notice that in any other 32GB phone), that's what i meant, you also can check any 8GB phone and you will find that he only has 4GB for media...i hope i explained it in an easy way.
in my case i have an s2 with 16GB
i only have 11.5GB for media, and there is 512mb system partition and 512mb preload, and 2GB data partition, and small cache partition.., so that makes it about 14.5GB in total, the missing 1.5GB is due to formatting as far as i know, same as the sdcards thing i said earlier..
p.s: those partitions are unaccessible by default, they are hidden from the user, only way to access them is by rooting the phone and using a root explorer.
Yes I knew about that, but I never knew it took so much place
Thank you for your answer, I guess my phone is totally normal

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