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ameer1234567890 / OnlineNandroid

Nandroid Backup without Reboot
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Nexus 5 EFS partion(s) can't be backed up #41

Closed stokholm closed 9 years ago

stokholm commented 10 years ago

I don't know how to backup the Nexus 5 EFS partition. "onandroid -twrp -a e" doesn't do anything.

So I thought EFS must be the modem. I tried backing up the modem using "onandroid -twrp -a q". But that produces a file which TWRP won't recognize. So you can't select it for restore. Says something like "Didn't recognize file based on name 'modem'". Also the file is bigger than that TWRP produces, when EFS is backed up via recovery. So I guess modem != EFS.

I've read through the TWRP created logfile and it seems EFS partitions are modemst1 and modemst2 on mmcblk0p12 and mmcblk0p13 respectively. But I can't see how you'd backup those, using onandroid.

So I'm a little confused, as you can possibly see. I hope I'm making myself clear enough for you to see what the problem is.

ameer1234567890 commented 9 years ago

There is no efs partiton on a Nexus 5. Nexus 5 is an LG made device and efs partition is specific to Samsung devices.

stokholm commented 9 years ago

Well accordring to TWRP there is: https://www.youtube.com/watch?v=Wp2ViypXZF4#t=180 http://forum.xda-developers.com/google-nexus-5/development/modem-nexus-5-flashable-modems-efs-t2514095

ameer1234567890 commented 9 years ago

Even-though the developer there refers to it as efs, it is indeed not efs, but modem. Does your TWRP/CWM backup the modem (so called efs) partition? If not, this tool wont.

stokholm commented 9 years ago

Yes. It's not my video, but as you can see from it, TWRP backs up something called EFS, which contains the IMEI and is said to be quite important. https://www.youtube.com/watch?v=Wp2ViypXZF4#t=180 As you can see on the blurry shot, the guy selects EFS from the list of things to back up.

ameer1234567890 commented 9 years ago

You did not answer my question. Let me rephrase it. Does your TWRP/CWM backup the modem (so called efs) partition?

stokholm commented 9 years ago

What do you want me to say? As I said: In TWRP you can backup EFS. Whether it's the modem or not I don't know. Read the link I gave you. Watch the video.

Yeez...

If I'm not answering the questions the way you want them answered, please take more time to ask them, so I understand what you want. I'm not even using your script anymore, I just want to help you resolve this.

On Mon, Sep 29, 2014 at 6:47 PM, Ameer Dawood notifications@github.com wrote:

You did not answer my question. Let me rephrase it. Does your TWRP/CWM backup the modem (so called efs) partition?

— Reply to this email directly or view it on GitHub https://github.com/ameer1234567890/OnlineNandroid/issues/41#issuecomment-57190516 .