what's the best way to get an ISO "burned" to a USB stick on a Mac? Restoring using Disk Utility does not work.
The ISO is ubuntu mini.iso. It is the minimalist install ISO for installing ubuntu. It needs to be bootable on a PC. I am trying to install ubuntu on a PC that has no CD-ROM. The only other computer I have around is a macbook.
Best Answer
Directly from the How to install Ubuntu on MacBook using USB Stick page (my formatting):
hdiutil convert -format UDRW -o ~/path/to/target.img ~/path/to/ubuntu.iso
)mv ~/path/to/target.img{.dmg,}
diskutil list
to get the current list of devicesdiskutil list
again and determine the device node assigned to your flash media (e.g./dev/disk2
)diskutil unmountDisk /dev/diskN
(replaceN
with the disk number from the last command; in the previous example,N
would be 2)sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m
(replace/path/to/downloaded.img
with the path where the image file is located; for example,./ubuntu.img
or./ubuntu.dmg
)./dev/rdisk
instead of/dev/disk
may be faster.dd: Invalid number '1m'
, you are using GNUdd
. Use the same command but replacebs=1m
withbs=1M
.dd: /dev/diskN: Resource busy
, make sure the disk is not in use. Start Disk Utility.app and unmount (don't eject) the drive.diskutil eject /dev/diskN
and remove your flash media when the command completesNote: On newer Macs you might have to install an EFI boot manager to boot from USB.
See also: Download Ubuntu Desktop.