There are many alternatives to Chimera for Mac and since it's discontinued a lot of people are looking for a replacement. The best Mac alternative is GNU GRUB, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Chimera and five of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to Chimera are GRUB4DOS and WINGRUB, burg, rEFIt and Extended Operating System Loader.
GNU GRUB is a multiboot boot loader. It was derived from GRUB, the GRand Unified Bootloader, which was originally designed and implemented by Erich Stefan Boleyn.
GRUB for DOS is the dos extension of GRUB. It enables dos users to run the configuration console directly in real mode. The project also contains an utility called WINGRUB, an GUI intends to help configuring and installing GRUB in the WINDOWS environment.
Burg is a brand-new boot loader based on GNU GRUB. It uses a new object format which allows it to be built in a wider range of OS, including Linux/Windows/OSX/FreeBSD, etc.
rEFIt is a boot menu and maintenance toolkit for EFI-based machines like the Intel Macs. You can use it to boot multiple operating systems easily, including triple-boot setups with Boot Camp. It also provides an easy way to enter and explore the EFI pre-boot environment.
Written in C++ and licensed under GNU GPL, XOSL (eXtended Operating System Loader) is a user-friendly, window-based graphical boot manager handling large disks and over 30 different operating systems.
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