This requires the conversion program to actually understand how the CD image works. They try to recognize the image's contents, extract them to the USB drive, and create a whole new bootloader that – hopefully – will be compatible with the original one. Programs such as Rufus and Unetbootin don't simply "burn" the image they convert a pure CD image to a USB one. So in order to boot a CD image from USB, there are two options: Most importantly, the boot information is placed in a different location – CDs use an "El Torito" boot record at sector 17 BIOS-compatible disks use a MBR at sector 0 UEFI-compatible disks use a GPT at sector 1 and a whole separate partition to contain the bootloader. ISO images are CD images (the name comes from "ISO 9660"), and they're structured differently from "regular" disks. dd if=/path/to/iso of=/dev/rdiskX bs=1M (comments suggest "rdisk" for performance).diskutil list to find the "/dev/diskX" device.You can use plain dd, or direct imaging tools like Win32DiskImager. Try to write the image without using conversion tools (such as unetbootin). iso boots perfectly fine with VirtualBox, but has no apparent file system and fails to be imaged to any sort of USB drive? How can I create a bootable version this image for use with a "real" computer? However, there is definitely some real data in the image: Which is confirmed by mounting the image in macOS and Windows: iso using unetbootin just causes it to silently struggle, Rufus says the image is unsupported, and Etcher yields an error saying there's no file system: On a new VM, booted from the Bootable Media and successfully deployed the master image.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |