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An unlocked bootloader, showing additional available options. Bootloader unlocking is the process of disabling the bootloader security that makes secure boot possible. It can make advanced customizations possible, such as installing custom firmware.
flashing unlock/oem unlock *** – unlocks an OEM locked bootloader for flashing custom/unsigned ROMs. The *** is a device specific unlock key. flashing lock/oem lock *** – locks an OEM unlocked bootloader. erase – erases a specific partition.
Linux dual-booting is achieved by partitioning the boot drive, installing the Yaboot bootloader onto the Linux partition, and selecting that Linux partition as the Startup Disk. This results in users being prompted to select whether they want to boot into Mac OS or Linux when the machine starts.
This is an incomplete list of notable applications (apps) that run on iOS where source code is available under a free software/open-source software license.Note however that much of this software is dual-licensed for non-free distribution via the iOS app store; for example, GPL licenses are not compatible with the app store.
The .ipsw file itself is a compressed archive file (renamed Zip archive) containing at least three Apple Disk Image files with one containing the root file system of the OS and two ram disks for restore and update.
On iPhones and iPads with A9 or earlier A-series processors, the boot ROM loads the Low-Level Bootloader (LLB), which is the stage 1 bootloader and loads iBoot; on Macs and devices with A10 or later processors, the boot ROM loads iBoot.
A bootloader, also spelled as boot loader [1] [2] or called bootstrap loader, is a computer program that is responsible for booting a computer and booting an operating system. If it also provides an interactive menu with multiple boot choices then it's often called a boot manager .
iOS jailbreaking is the use of a privilege escalation exploit to remove software restrictions imposed by Apple on devices running iOS and iOS-based [a] operating systems. It is typically done through a series of kernel patches.