Additionally, it doesn’t seem that the developer has any plans of releasing the program for Mac or Linux any time soon. While a lot of users have high praise for the app, it’s unfortunately only available for Windows. Making the process of creating a bootloader for Windows super straight-forward, many Mac users often wonder if it is available for Mac. Many praise it for being incredibly easy to use, while also giving it high-marks for being open-source. Bootloaders primarily help with getting an operating system going, and one of the more popular ones for Windows machines is Rufus.įor those that don’t know, Rufus is an open-source app that allows users to create bootable USB drives for their Windows machine. While many users may not often consider a bootloader, this is often because they typically serve a background role. When UNetbootin is run again, the uninstaller is run this will delete the extracted files (which is recorded using /ubnfilel.txt and /ubnpathl.txt) and restore the backed-up boot configuration files.For those looking for a Mac alternative to Rufus in order to help them make their own bootable USB drive, I’m going to offer up some super cool alternatives. The existing config file is backed up to or. On Linux, menu.lst (if using GRUB) or grub.cfg (if using GRUB2) is modified to add the UNetbootin entry. When run, this will uninstall UNetbootin by deleting the extracted files (which is recorded using /ubnfilel.txt and /ubnpathl.txt) and removing the UNetbootin boot menu entry. exe file is copied to /unetbtin.exe, and this is added to autorun upon the next bootup. This loads the GRUB4DOS bootloader, which is installed at /ubnldr and /ubnldr.mbr, and this in turn reads boot menu entries from /unetbtin/menu.lst. On Windows, UNetbootin modifies boot.ini (on 2000/XP), or uses bcdedit (on Vista/7) to add a boot menu option titled UNetbootin. The partition to which it has been installed is also marked as active. On Linux, if extlinux is installed and the target USB drive is ext2 or ext3, extlinux is used instead the config file is installed in /nf. USB Drive install modeįor the Live USB creation mode, UNetbootin generates an appropriate syslinux config file in /syslinux.cfg, and makes your USB drive bootable using syslinux. What occurs during this stage differs depending on whether USB drive install mode or Hard Disk (frugal) install mode is used. Upon bootup, memdisk will load the IMG file into memory, and boot from it. The specified IMG file is copied to /ubninit, and memdisk is copied to /ubnkern. Boot configuration files (named syslinux.cfg, isolinux.cfg, nf, or menu.lst) are then read to determine any boot options that need to be used and locations of other kernel and initrd files. Heuristics based on file size and name are then used to locate kernel and initrd files these are placed in /ubnkern and /ubninit. ISO filesħ-zip is used to extract files from the ISO file to the target drive. What occurs during this stage differs depending on the disk image type (ISO file or floppy disk image). Resuming of downloads has not yet been implemented. Usually, a redirector URL is used, or a regexp is used on directory listings on mirror sites, to ensure that the latest distribution version is downloaded. UNetbootin supports http and ftp as download sources. UNetbootin's functioning is split up into 3 stages: downloading, extracting files, and installing the bootloader.
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