The usual way to boot a file is to use grub2 (https://help.ubuntu.com/community/Grub2/ISOBoot ). If anybody has got grub2 working in a 32bit arm userspace/kernel I would ***very*** much like to hear from them. I'm not sure if U-boot can drill into an ISO file.I ask because I've actually done some thinking about this - about how one could actually use a .ISO file on a Raspberry Pi. It is an interesting question.
Most laptops don't come with a cd/DVD drive, they'll be installing via a sd card or USB drive, just like the rpi.linux OS's are normally supplied as an iso to be burnt on to a CD/DVD and run from such
The 3 can boot from USB too! All rpi distro's seem to use dd which nukes the card. If you are installing to a USB drive with stuff on it that you want to keep you need a better way. dd is also a pain from windows. If you are using the rpi as a desktop machine then you want the same installation process as other desktop machines. There is no reason for this not to happen.The raspberry pi runs its OS from an SD card so needs an img file to be load on to the SD card.
The point is I don't want to install. I needed the capability of a live ISO to fix something. Not everybody has access to another Linux machine to fix their broken rpi system.if you wish to install one of the ubuntu OS's on a pi I would just go here https://ubuntu-pi-flavour-maker.org/download/
Well I am Adam, I hope that clears it up! but seriously, that's a fair point and it amazes me that people are willing to download and use something from a random person on the internet. If you want to make your own it's pretty easy.Not doubting your intentions but I don't know you from adam why would I want to use an OS img from you ?
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Unless you are selling preformated SDcards the only way to put an image on an SD that i know of is to format it.
Considering raspberrypi foundation's stated porpoise is education
It's not an image. That's the whole point. You stick the iso file on any old existing partition and you boot it into a fully working system. SD cards come pre formatted, so nope you do not need to format!Unless you are selling preformated SDcards the only way to put an image on an SD that i know of is to format it
Well I am certainly of the opinion that the best way to learn is to investigate and try things yourself. I'm happy to answer questions though. Look up debians live-build (well documented) and the live-cd-rootfs package (you just need the scripts from the auto folder). I'll probably add something to the ubuntu live cd customisation wiki pages about using them.Considering raspberrypi foundation's stated porpoise is education
perhaps? you could detail the methods (scripts?) used to create this image .
I don't know anything about exFAT, but it is worth saying that of course the bootloaders have to be on a partition that is readable from a pi. Once the kernel/initramfs is loaded, then you are in the linux world and most partition types are supported.Unless the card is 64GB or greater, in which case the pre-format is exFAT and unusable on a Pi.
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Glad to hear it