Found this under advanced boot. wouldn't it be possible to boot ubuntu this way if it was compatible with the surface?
UPDATE:If you want to boot from USB, Hold VOLUME DOWN while turning on the device.
I don't know if Ubuntu has a version compiled for ARM processors. In my opinion at this moment there is nothing out there that you can put in an USB stick and boot from it in a Surface RT.
ubuntu
It would be possible once the new version of Ubuntu is out since they are working on marking it work for phones and tablets.
You can get there by going to settings, change pc setting, general and then scroll all the way down to advanced bootup.
svenk919 said:
You can get there by going to settings, change pc setting, general and then scroll all the way down to advanced bootup.
Click to expand...
Click to collapse
if it acts the same way as Windows 8 x86/64, you can also access this stuff by holding shift and clicking the restart option from the windows power menu, as for what could be booted from there you'll likely need to get it signed properly, in addition I haven't heard of plans to make ARM Linux compatible with UEFI secure boot yet (only x86-64 Linux is being made compatible atm), so your kernel would need to support UEFI booting on ARM and will likely need to be signed with a valid key(like with x86-64 Linux kernels on newer UEFI systems).
Yea he's right totally forgot about the new secure boot
Sent from my SGH-I717 using xda app-developers app
So the USB image need to be secure boot compatible as well? Anyone tried it?
bountygiver said:
So the USB image need to be secure boot compatible as well?
Click to expand...
Click to collapse
Yes.
But lets hope that there would be a signed *nix bootloader for RT devices.
See entry in this thread about how to create a bootable USB recovery OS
http://forum.xda-developers.com/showthread.php?t=1976532
Desktop > Control Panel > System and Security > File History.
Tap "Recovery" at the bottom of the left pane, and you'll find an option to "Create a Recovery Drive."
It copies the Recovery Partition to a flash drive and makes the flash drive bootable for using in the Advanced Startup option.
Plus make sure you save your bitlocker recovery key
-- disk management shows it as BitLocker protected, but control panel, System, Security doesn't have a BitLocker management section ?
Use an admin cmd prompt and manage-bde -protectors -get c:
Hold VOLUME DOWN while turning on the device to boot from a USB device.
Hey everyone. Long time lurker, first time poster, and always grateful.
Okay, so I took a good look at some related threads. They all seem to have been resolved by using tools specific to their particular device. I have not had luck following their lines. So, here's what's up with me:
Asus Transformer Tf700 US edition
Had Cyanogen Mod. Wanted to sell my tablet, so I decided to wipe and go back to factory. Unfortunately, while fooling around in TWRP, I managed to putz it up and wipe the system and data. So no more OS, and apparently no more super user (whoops), although I may be wrong about that.
I can reboot the device into TWRP, but I can't mount the microsd card. When I plug my microsd card into my device, I just get an error that says cannot mount external sd card. So, since that isn't working, I've tried to sideload via adb.
I have the SDK but can't run ADB sideload because ADB on my computer does not recognize my device. I have tried to install updated drivers, though the drivers that I did find, when I point windows to the folder with them, it doesn't see a driver. SO maybe I'm doing that wrong.
I'm completely at my wit's end here. Can someone give me a little help?
Thanks everyone for your help in advance.
Specifics please????
CM, TWRP, Windows, drivers: What version?
You may want to try this, it installs the drivers for you: http://forum.xda-developers.com/showthread.php?t=2588979
berndblb said:
Specifics please????
CM, TWRP, Windows, drivers: What version?
You may want to try this, it installs the drivers for you: http://forum.xda-developers.com/showthread.php?t=2588979
Click to expand...
Click to collapse
Hey there, thanks so much for replying!
I'm using TWRP v2.6.0.0.
Windows 7 x64 SP1
The CM version that I had, I actually don't recall now. I had flashed it back to stock though, before this, by using TWRP recovery. I noticed after that that I had not flashed my saved files properly. That's when I pooched it, hah.
I removed the existing USB drivers via device manager, restarted, used the installer that you linked to, restarted, and plugged in my device. It said installing drivers, and then failed to install drivers. ADB does not recognize a connected device. Merp.
I still haven't had any luck. Does anyone have any ideas?
You have to get the Windows drivers working to get ADB and fastboot access to your tablet and that can be tricky. Any chance you can get your hands on a Linux machine?
If the ADB tool I linked to didn't work (and I don't understand why - I used it on Win7 32 bit without a hitch) try to install the Google Universal Naked Drivers (google the term and should find them easily).
Actually - do you have the Asus device drivers installed? What happens if you connect the USB cable? Does Windows recognize the device at all? If not try to download Asus Sync, install it and try again. Once Windows recognizes the tablet as a MTP device, run the adb tool again and then try "adb devices" when you are booted into Android and "fastboot devices" when the tablet is in fastboot mode.
http://forum.xda-developers.com/showthread.php?t=2646279
berndblb said:
You have to get the Windows drivers working to get ADB and fastboot access to your tablet and that can be tricky. Any chance you can get your hands on a Linux machine?
If the ADB tool I linked to didn't work (and I don't understand why - I used it on Win7 32 bit without a hitch) try to install the Google Universal Naked Drivers (google the term and should find them easily).
Actually - do you have the Asus device drivers installed? What happens if you connect the USB cable? Does Windows recognize the device at all? If not try to download Asus Sync, install it and try again. Once Windows recognizes the tablet as a MTP device, run the adb tool again and then try "adb devices" when you are booted into Android and "fastboot devices" when the tablet is in fastboot mode.
Click to expand...
Click to collapse
Hey, thanks for the reply. When I plug in the device, it tries to install drivers and almost immediately fails. It then shows in the device manager as shown in the attached file. When I right click, select update driver, and point it to the folder with the google naked drivers (or the asus drivers), it says that "Windows cannot find drivers for this device." This seems strange to me. It has no idea what the transformer is when it is plugged in. Is there a different manual method of installing drivers, or cuing windows to recognize that these are the correct drivers?
I had Asus Sync installed, and that didn't seem to do anything for me. Windows would not do anything differently than it had already done. Grrr. This hurts.
sbdags said:
http://forum.xda-developers.com/show....php?t=2646279
Click to expand...
Click to collapse
This method looks promising, but it requires one to go into Android and turn on USB debugging mode. Problem is: I have no OS to log in to in order to do so
Whoops, forgot screen shot
Jeez - this is frustrating. I'm running out of ideas how to get Windows to work...
You are running Windows with administrator rights - yes?
Consider installing Linux as a dual boot on your Windows machine. I did that just to get rid of these ADB/fastboot driver problems....
berndblb said:
Jeez - this is frustrating. I'm running out of ideas how to get Windows to work...
You are running Windows with administrator rights - yes?
Consider installing Linux as a dual boot on your Windows machine. I did that just to get rid of these ADB/fastboot driver problems....
Click to expand...
Click to collapse
I'm running shy on space on my OS SSD, but would it potentially work running off of a boot disk? I have Fedora lying around here somewhere. Would the process be especially different? I have so very little experience working in Linux.
Also, I wonder if this is important. When I tell TWRP to reboot the machine, it informs me that super user isn't installed, and offers to root my device for me, but when I select that option, the screen just goes blank and it appears to hang, and I have to reboot it with the volume and power keys.
hardshank said:
I'm running shy on space on my OS SSD, but would it potentially work running off of a boot disk? I have Fedora lying around here somewhere. Would the process be especially different? I have so very little experience working in Linux.
Also, I wonder if this is important. When I tell TWRP to reboot the machine, it informs me that super user isn't installed, and offers to root my device for me, but when I select that option, the screen just goes blank and it appears to hang, and I have to reboot it with the volume and power keys.
Click to expand...
Click to collapse
I have no idea if you can run adb or fastboot if you boot Linux off a boot disc - but what the heck? Why not try it at this point?
I do not understand your driver problems at all. I helped someone today with a lot of the same problems: The tablet only booted into recovery, TWRP would not mount the microSD, didn't see any files on the internal... The ADB tool I linked to earlier allowed him to adb reboot to the bootloader - the rest was a breeze... Something in your Windows setup is just effed up... Sorry - wish I had that magic wand...
berndblb said:
I have no idea if you can run adb or fastboot if you boot Linux off a boot disc - but what the heck? Why not try it at this point?
Click to expand...
Click to collapse
Sure, if you have compatible adb and fastboot binaries it should work. Linux doesn't care where it was booted from.
_that said:
Sure, if you have compatible adb and fastboot binaries it should work. Linux doesn't care where it was booted from.
Click to expand...
Click to collapse
I had to install the adb and fastboot binaries on my distro. You can't do that on Linux running off a disc - can you? You would have to find a distro that comes with them?
berndblb said:
I had to install the adb and fastboot binaries on my distro. You can't do that on Linux running off a disc - can you? You would have to find a distro that comes with them?
Click to expand...
Click to collapse
On some live distros you can install additional software to a ramdisk. For adb and fastboot, any live distro with 32 bit libraries should have the required libs so that you can just copy/download the binaries and run them.
So here is an interesting development: I am now able to see my micro SD card when it is plugged into my device. Why? I haven't the foggiest. However, I still can't see any of its contents. Curious....
hardshank said:
So here is an interesting development: I am now able to see my micro SD card when it is plugged into my device. Why? I haven't the foggiest. However, I still can't see any of its contents. Curious....
Click to expand...
Click to collapse
Okay. I can't believe this worked, but I'm back in action. Here's how it went down:
- I tried doing a Linux USB drive, but was having difficulties getting it to boot, and my knowledge of Linux is so limited, I basically gave up hope.
- Today, I picked up my tablet (which has remained plugged in for power all of this time), and rebooted it. At the opening screen, which allows me to choose to go into TWRP, boot into (I think) Linux, or wipe data, I had never selected Wipe Data. Why? Because accidentally wiping the wrong partition is what got me in this mess to begin with.
- SO then I think, what the hell. It seems to have actually done something (though I don't know what), so I grab my micro SD with stock Android loaded on it, and pop it in. Voilà! It is recognized (as above).
- For some reason, no contents of card are visible
- Restarted device: card contents visible!
- Selected "Install" in TWRP menu, and selected my stock ROM
So. This has been a weird month. Thank you to EVERYONE who helped out on this. I'll be sure to hit the Thanks buttons!
hardshank said:
Okay. I can't believe this worked, but I'm back in action. Here's how it went down:
- I tried doing a Linux USB drive, but was having difficulties getting it to boot, and my knowledge of Linux is so limited, I basically gave up hope.
- Today, I picked up my tablet (which has remained plugged in for power all of this time), and rebooted it. At the opening screen, which allows me to choose to go into TWRP, boot into (I think) Linux, or wipe data, I had never selected Wipe Data. Why? Because accidentally wiping the wrong partition is what got me in this mess to begin with.
- SO then I think, what the hell. It seems to have actually done something (though I don't know what), so I grab my micro SD with stock Android loaded on it, and pop it in. Voilà! It is recognized (as above).
- For some reason, no contents of card are visible
- Restarted device: card contents visible!
- Selected "Install" in TWRP menu, and selected my stock ROM
So. This has been a weird month. Thank you to EVERYONE who helped out on this. I'll be sure to hit the Thanks buttons!
Click to expand...
Click to collapse
Glad you got it working!
Out of curiosity: Was your tablet booted or completely off until you picked it up today? Did you reboot into the bootloader or did it do that by itself?
Sent from my ASUS Transformer Pad TF700T using Tapatalk
Earlier this week, I posted a thread here asking for help with my hybrid android/windows tablet (Neo Shift N81) that wouldn't boot anymore into Windows. Nobody was able to help here and I ended up going back to the store where I got myself a windows recovery USB. After several attempts, it finally loaded the thumb drive. It reinstalled windows, but what the installation ended up doing was reformat the WHOLE disk on my tablet thereby effectively erasing the partition containing android as well. crying: FML)
So now I have the opposite problem. Windows boots and android doesn't. A little bit of googling led me to Android x86, which is able to run on Intel processors like the one on my tablet. I ended up downloading the 4.4 rc5 iso since it said that would compatible with my 32-bit EFI firmware. I created a 7gb partition by shrinking the main windows one and formatted it as ext4. I placed the iso onto a 2GB fat-32 USB using UNetbootin. I was able to boot it by going into the BIOS and force booting it. I tried testing it by running the live option, but it didn't boot although I suspect that may have also been because the thumb drive I used was ancient (from 2008). Then I installed it to the partition I created earlier. I initially tried to select "do not format", but when I got to the GRUB install windows it wouldn't proceed when I selected "yes" (it just started what looks like a command prompt, except no commands were accepted and would just continue creating multiple lines). Reboot and I selected it to format the partition into ext3. This time, it would proceed beyond "yes" and installed normally. Except it still didn't boot into Android. There was no grub menu or anything and the tablet just automatically boots into Windows 10. (I do have secure boot and fast boot disabled in BIOS) When I check the BIOS, it also doesn't have Grub as one of the options.
What I then tried was the instructions at this link where I select "skip" upon the grub install window during android installation. Grub2Win does show up upon the boot options, but even if I try to force boot that option, it doesn't do anything.
So what now? is there another bootloader I could try? Did I even install android correctly or did I select an .iso not compatible with my hardware?? (Prior to android being erased by the windows installation, the android on my tablet was 4.4) The info page mentioned that the "second" is an EFI image, does that mean I should download the .img file? Please help.
I followed instructions mostly from here.
So it has been a hectic few days for me as I had alas managed to wipe my system reserved partition thinking that installing android x86 as multi-boot would actually boot windows for me. Wrong!!! My first poor encounter was the fact that when I had installed windows it had created the system reserved partition as ntfs... I had not realized this when attempting to install android x-86 as multi-boot. I will tell you the result, when booting it would appear to go to grub, however instead it just booted the first menu on the list without hesitation and gave no menu at all. To remedy this I had to use the windows 10 usb i had created for my initial install. I am still not sure how i managed to get it to boot the first time I think it may have just been dumb luck. When windows booted up i went to Disk Management (right click the windows menu and select from the drop down) where I then proceeded to delete the system reserved partition and reformat it fat32. At this point I was satisfied that android would point the out the windows boot, boy was I wrong. After installing Android x86 (_64 8.1 r3) I finally achieved the grub menu boot correctly. I also noted that when installing android x86 the only way it gave me option to add windows to grub was if i had installed without formatting first. (this can be done a few ways including just reinstalling much the same way you would dirty flash a rom on a phone) or you could use a tool to format the partition such as gparted or a linux live cd/usb. I suggest ext4. Oh wait my nightmare hadn't finished yet... Android x86 install had no problems at all (select partition to install(ext4)... do not format... install grub... yes to windows... yes read write... and then reboot) on reboot windows was in the grub menu and I selected it... oops there is no operating system!!! Well that is unsettling... ( I managed to get back into windows using the install media) and not so sure how. At this point i notice that my system reserved partition was now sda 3) So my next objective was to create a boot record for windows which could have been done easily from windows had I considered using bcdedit tool for windows. But since i knew that the partition was sda 3 I figured I could just point the grub menu to the correct drive... again wrong (there was still no boot mbr on that partition *sigh) Well I found that when i went into command line from the windows repair tool it would say I do not have permission to fixboot... wow nice job microsoft... after doing a bit more research I learned that the newer builds give this error when attempting to fix boot. I found a video on youtube which helped me alot but took quite a while to download the older working repair tool(installation media) but his video was fairly well put together. link here (https://www.youtube.com/watch?v=lRCyb7FzWFY). I followed his guide and this time with the repair tool that he shared in the description of his video, I was able to perform the fixboot (bootrec /fixboot) however one of his commands required the copying of bcd to the system reserved partition. The copy failed, however at this time running all the other bootrec commands seemed to go fine. So I exited command and went to the automatic startup repair, which to my surprise worked perfectly... (after a whopping 30 some hours of pulling my hair out of my head over this mess) And windows began to boot. At this point I gave my thanks to the poster of the video and shared my experience with his video in the comments below.) Now When windows booted up I downloaded the bcdedit tool. Personally I used the multi boot tool from this site (https://www.boyans.net/dual-boot-repair-windows-10.html) and selected repair mbr and boot record. This fixed my boot issue windows would boot normal at reset. However now my android was gone but thats okay.
At this point I just reinstalled the android x86 again over the same ext4 partition without formatting and added the windows to grub. This was perfect however when selecting windows did not boot. To fix this I had to edit the grub menu.lst and change the drive from hd(0,0) to hd(0,2) to point to the fat32 partition which had been somehow displaced to sda3. In order to do this I ran android in debug... when debug is running just hit enter and it give you a prompt... from prompt type without quotes "cd /mbr/grub" when the next prompt comes up you should be in the grub directory where the menu.lst is. Now type without quotes "vi menu.lst" this will take you into a text editor (note you can also change your monitors and resolution permanently in grub menu this way) using the arrow keys navigate to the line you want to edit, in my case the last entry which was windows entry when you get to where you need to edit hit the "i" key this will allow you to now enter and edit the text. After making changes hit "esc" to save changes type ":w!" then hit enter. To exit type ":q!" this will take you back to prompt. Now reboot your system and finally the results I had originally hoped for a multi-boot system with windows 10 and android. Now if you are attempting to do this and are looking for a guide to install I will make this just a little longer to make sure you dontt make the same mistakes I made.
1a) before you attempt to install a dual boot with grub... make sure your system reserved partition is fat32 if it is not you need to change it to fat32. as grub will not boot on ntfs partitions.
1b)you will need to have a blank partition, if you have spare room on the drive you can shrink your volume and create a new one. There are plenty of tools out there to format ext4 even from windows. Make sure you format it before installing. (if you are lazy like me you can format ext 4 from the installation, but there is a chance that you would need to reinstall again and choose not format to get the windows entry in grub)
1c)once your partitions looks the way you need and you have a working fat32 system reserved partition you are ready to move on. ( If you have to change a ntfs partition to fat32 I highly suggest you dont install anything until you have repaired the boot menu and tested it first to make sure it works)
2)create your install media... I prefer to use rufus as it is quick and easy, and I prefer the official android x86 as the 8.1 r3 is stable and works great, you can use whatever image you want though, lord knows i test newer versions as they come out. when you have rufus and the android x86 iso of your choice load rufus select your usb drive and select the iso with the browse button. then just hit start allow it to format and when it is done you can boot into your usb
3)To boot into your usb you may actually need to edit your bios and enable virtualization and make sure safeboot is not enabled, also you need a uefi system for x64 distros so if you have an older legacy bios you will need the x86 version instead or the system wont boot
4)When you finally get it to boot you will find the menu to use it as a live cd or install, select the install.
5a) You will now be asked where to install to. Pick the ext 4 partition you created for it.
5b) Now it will ask you to format choose do not format (again if you hadn't formatted the partition ext4 you may do it now, but you may have to reinstall and not format the next time to add windows to the grub menu)
6) You will now be asked to install grub answer yes, if you do not answer yes you wont be able to get back into your android partition again until you do.
7) Now it will tell you that it found a windows partition and asks you if you want to add an entry, select yes... if you do not you will have to make your own grub entry to get back into windows later or completely delete grub from the partition later.
8) Finally it will ask you if you want to make the system read write... select yes, if you select no i can not guarantee you will be able to install anything inside of the system.
10) The end... Installation finishes but do not click launch... instead click reboot. The reason for this is that I have noticed if you launch at the end of installation the grub somehow manages to disappear and you end up having to completely start over.
Enjoy your android x86 / windows multi-boot system.
make sure your system reserved partition is fat32
Click to expand...
Click to collapse
There is no system reserved partition on my laptop since I have a UEFI laptop.
Should I proceed ?