I’m running Mac OS Sierra and I needed to make a bootable CentOS 7 USB stick.<\/p>\n
I downloaded the minimal ISO<\/a> and proceeded to follow the instructions at How to Copy an ISO to a USB Drive from Mac OS X with dd<\/a>, but it never worked. The server never recognized the USB stick as valid media.<\/p>\n At first, I thought it might have had to do with the formatting of the USB stick, which was FAT32. So I tried Mac OS Extended and Extended FAT, but that didn’t help either.<\/p>\n As mentioned by a couple of the comments on that page, I tried writing to Once it finishes copying, it should look like this: \/dev\/disk2 (external, physical): Using dd to write an ISO to a bootable USB drive, be sure to write to the USB drive’s main disk rather than to a formatted partition.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[232],"tags":[],"class_list":["post-1857","post","type-post","status-publish","format-standard","hentry","category-tips-tricks"],"_links":{"self":[{"href":"https:\/\/osric.com\/chris\/accidental-developer\/wp-json\/wp\/v2\/posts\/1857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/osric.com\/chris\/accidental-developer\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/osric.com\/chris\/accidental-developer\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/osric.com\/chris\/accidental-developer\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/osric.com\/chris\/accidental-developer\/wp-json\/wp\/v2\/comments?post=1857"}],"version-history":[{"count":3,"href":"https:\/\/osric.com\/chris\/accidental-developer\/wp-json\/wp\/v2\/posts\/1857\/revisions"}],"predecessor-version":[{"id":2034,"href":"https:\/\/osric.com\/chris\/accidental-developer\/wp-json\/wp\/v2\/posts\/1857\/revisions\/2034"}],"wp:attachment":[{"href":"https:\/\/osric.com\/chris\/accidental-developer\/wp-json\/wp\/v2\/media?parent=1857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/osric.com\/chris\/accidental-developer\/wp-json\/wp\/v2\/categories?post=1857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/osric.com\/chris\/accidental-developer\/wp-json\/wp\/v2\/tags?post=1857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}disk2<\/code> instead of disk2s1<\/code> (keep in mind that the USB key on your system may be a different disk — use diskutil list<\/code> to help identify it):<\/p>\n$ diskutil unmount disk2s1
\ndisk2s1 was already unmounted
\n$ sudo dd if=~\/Downloads\/CentOS-7-x86_64-Minimal-1611.iso of=\/dev\/rdisk2 bs=1m<\/code><\/p>\n
\n$ diskutil list<\/p>\n
\n #: TYPE NAME SIZE IDENTIFIER
\n 0: FDisk_partition_scheme *16.1 GB disk2
\n 1: 0xEF 6.4 MB disk2s2<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"