rEFInd vs YUMI

rEFInd is a free boot manager, forked from rEFIt, that scans for boot loaders and lets users select an operating system or utility at startup. It is intended for EFI-based computers, not older BIOS-based machines, and works with EFI 1.1 and UEFI 2.x. It can find EFI loaders, BIOS/CSM/legacy loaders, and boot options saved in firmware NVRAM. For Linux, rEFInd can detect kernels with EFI stub support, locate initrd files, and read kernel options from a refind_linux.conf file. It supports text and graphical operation, with configurable resolution, backgrounds, icons, and fonts. It can communicate with Shim to authenticate boot loaders using valid UEFI Secure Boot keys, Shim keys, or Machine Owner Keys. Included filesystem drivers cover ext2/3, ext4, Btrfs, ReiserFS, HFS+, and ISO-9660; the NTFS driver is not compiled by default. Downloads include ZIP, RPM, Debian, CD-R image, and USB flash drive image packages. Installation scripts and manual procedures cover Linux, macOS, and Windows. The maker describes it as beta-quality, with uneven testing across architectures.

YUMI creates a multiboot USB drive that starts multiple operating systems, Windows installers, rescue disks, and utilities from one menu. Pendrive Linux recommends YUMI Py, which runs natively on Windows and Linux from one Python codebase; YUMI exFAT is a supported Windows-only alternative with a classic interface. YUMI Py can batch-add ISO, IMG, WIM, EFI, and VHD(x) files, including files over 4GB. It manages persistent storage for compatible Arch, Fedora, Ubuntu, and some Debian-based live systems. Boot media can be tested in QEMU or VirtualBox, and a distribution can be installed into a persistent virtual disk on the USB drive. Auto Download queues selected distributions and downloads ISO files directly to the drive, with resume support and one to four concurrent downloads. LAN Share streams through noVNC to a browser, but has no login or access code and is recommended only on trusted home or personal networks. Auto Download does not verify published checksums. Preparing a drive wipes every volume and partition, including hidden ones. On Linux, YUMI Py can add an existing VHD or VHDX but cannot create a new Windows-To-Go-style one. Secure Boot requires enrolling a key in the MOK database. YUMI costs nothing.