Create a bootable sd card for android

How can I create a booatble SD card for an android like Samsung galaxy tab or an windows surface?  Thanks.
cesemjAsked:
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KimputerCommented:
Where do you want to attach this card to? Which device will read this card? What do you want on this card (which OS)?
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rindiCommented:
Usually all that is needed is a FAT or FAT32 formatted card, and then you just copy the firmware to it, according to the instructions from the firmware's site. You'll also have to check with the android device, some don't allow to boot from SD cards.

But you can't boot an m$ surface to android. M$s surfaces with Windows RT can only boot to Windows RT. Secureboot within the BIOS only allows booting to RT, and you can't turn it off.
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cesemjAuthor Commented:
I want to attache this card to the samgsung
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cesemjAuthor Commented:
I would like to have the OS (Linux based) for the samgsung and insert the card into the SD slot.
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KimputerCommented:
Letting a phone boot on Linux is already extremely difficult ON THE INTERNAL MEMORY. First you have to find someone who is willing to make it work on your specific phone (not many people have done it). And now you add even more difficulty to have it boot from an external SD card (in my humble opinion, it's not possible, otherwise it would already be as widespread as normal bootable cd/dvd/usb like it is on a normal PC).
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rindiCommented:
You'd have to find a distro that works with your particular phone. After that as I mentioned you normally just need to copy the contents of the image of that distro to the SD card. Most devices will then, if the card is inserted into it's slot, boot to from that inserted card.
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KimputerCommented:
There has been NO working bootable SD card on a Samsung Galaxy phone (or any other Android phone) ever seen in this world. Even a working single boot Linux is for only one type of phone is extremely difficult, let alone a bootable SD card.
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rindiCommented:
An Android smart-phone is basically the same as an Android tablet. I have an Android tablet which I can easily boot to Linux using an SD-card. The Linux version just has to be built for the particular ARM processor and hardware in that tablet. I'm sure that Samsung Smart-phones use standard ARM processors that are the same as in tablets, and don't see any reason why you wouldn't be able to boot it to a Linux distro that works on that CPU too. Of course the phone must probably be rooted and carrier independent.
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cesemjAuthor Commented:
Thanks, is there a url that had the filed o need to download and copy to the ad card for the tablet.
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rindiCommented:
You have to search specifically for your particular model
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cesemjAuthor Commented:
Sorry, I though I addressed his question.
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