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- #Boot hyperspin tutorial 2015 how to#
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For example the built in loader checks a checksum for the elf sections it loads into iram, but not for the. With a boot loader you could put both separate apps on the device and switch between them remotely or with a GPIO etc.Īnother reason is that the boot loader can load your application differently to the built in loader and add features not present in the original loader. However, you might have a need to deploy a device with two completely different functions and not want to combine them into a single application. OTA updates are probably the main reason for wanting to use a boot loader.
#Boot hyperspin tutorial 2015 update#
There are work-arounds you could do to OTA update a device from the running rom, but it wouldn’t be very safe. For example, if you want to update your device over the air (OTA) you’ll need to have at least two rom slots on your flash, a running one and one that’s getting flashed with the new version (which you then reboot into). That may not sound quite as useful as being able to dual boot your computer between Windows and Linux, but there are uses for it. The main reason is to allow you to have multiple “roms” and to be able to switch between them. irom0.text elf section) as irom from now on. To avoid confusion (hopefully) I’ll refer to the rom section of code (the code that is run from rom, usually just the.
#Boot hyperspin tutorial 2015 full#
I talk about “rom” or “roms” here to mean full compiled user apps, that might traditionally have been deployed on their own but with a boot loader you can have several on the flash with just one operating at a time.
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#Boot hyperspin tutorial 2015 how to#
Or maybe they can’t figure out how to – when I started playing with the boot loader it was poorly documented (probably still is) and I had to work it out myself. Why? Maybe people aren’t aware of the reasons why you might want to. This shows the partition methods.From recent reading and discussions it seems that lots of people aren’t using the Espressif boot loader (or my own rBoot, but that’s less of a surprise) on the ESP8266. Either way, after the installer starts, navigate to the step shown in Figure 1. You’ll be given the option of booting into a Live desktop or straight to the installer. After that’s completed, boot the computer with the installation media that you just created in place. After downloading it, burn it to a blank DVD or transfer it to a suitably-sized USB stick. So if you’re ready, download an installation image of Ubuntu 15.10 from here. The /home partition is optional but recommended. That means creating an EFI System Partition (ESP), a root, /home and swap partitions. And if you’re attempting to set up a dual-boot system between Windows 10 and Ubuntu 15.10 on a single hard drive, you’ll be creating just three partitions – each mounted at / (root), /home and swap.įor this tutorial, we’ll assume that you want to create partitions manually on a hard drive with no other operating system on it, so you’ll be creating the complete set of partitions for a computer with UEFI firmware.
#Boot hyperspin tutorial 2015 install#
This guide will cover how to create partitions manually using a GPT (GUID Partition Table) partitioning scheme, and also using an MBR (Master Boot Record) partitioning scheme.Ĭreating GPT Partitions: If you have a Windows 10 computer that you’re also attempting to install Ubuntu on, you’ll be creating partitions using a GPT scheme. Some familiarity with the terms associated with disk partitioning in Linux will go a long way in helping you to understand what you’ll be doing, so it’s recommended that you take a few moments to read A beginner’s guide to disks and disk partitions in Linux. For those new to Linux and, therefore, to disk partitioning in Linux, here’s a comprehensive tutorial on how to create disk partitions manually for installing the latest edition of Ubuntu – Ubuntu 15.10, code-named Wily Werewolf.