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@guyjin
Created April 30, 2013 05:42
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commands to extract iso image from hybrid Ubuntu iso's on a mac.
1. Open the Disk Utility gui application. (Easy way to find it: Search using spotlight.)
2. Drag the original .iso from Finder into the images section of Disk Utility (on the left side underneath the mounted drive list), and then double click on it there. A faded "diskNs1" should appear underneath it, and a dialog box will say the disk is not mountable. The "diskNs1" is the embedded .iso.
3. Run "dd if=/dev/rdiskNs1 of=./ubuntu-extracted.iso bs=1m" to copy out the working .iso image.
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