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On 2013-09-03, Alan McKinnon <alan.mckinnon@×××××.com> wrote: |
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> On 03/09/2013 23:19, Grant Edwards wrote: |
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>> On 2013-09-03, Alan McKinnon <alan.mckinnon@×××××.com> wrote: |
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>>> On 03/09/2013 19:05, Grant Edwards wrote: |
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>>>> On 2013-01-07, Walter Dnes <waltdnes@××××××××.org> wrote: |
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|
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[...] |
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|
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>>>>> isohybrid install-x86-minimal-20121213.iso |
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[...] |
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>>>>> * I then copied it over to a USB stick (/dev/sdb) with the command... |
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>>>>> |
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>>>>> dd bs=4M if=install-x86-minimal-20121213.iso of=/dev/sdb |
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|
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[...] |
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|
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>>>> After running the isohybrid command, I compared the resulting image |
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>>>> with the original. They were identical. I copied the image to a USB |
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>>>> flash drive, and it booted just fine. |
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>>>> |
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>>>> It seems that the minimal install .iso images are already built for |
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>>>> hybrid booting from either CD or a generic block device (e.g. USB |
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>>>> mass-storage device). |
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>>>> |
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>>>> So what's the deal with http://wiki.gentoo.org/wiki/LiveUSB/HOWTO? |
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>>>> |
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>>>> Why isn't it just the steps below? |
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>>>> |
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>>>> 1) Copy the minimal install .iso to USB mass storage device. |
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>>>> |
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>>>> 2) Boot from USB mass storage device. |
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>>> |
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>>> Copying an .iso to a USB stick does not give you a bootable USB |
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>>> stick. |
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>> |
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>> It does for recent Gentoo minimial install .iso images. |
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> |
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> Now I'm confused, let's clarify. Which of these meanings of copy are you |
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> using: |
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> |
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> cp my_big.iso /where/i/mounted/the/stick |
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> |
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> dd if=my_big.iso of=/dev/sdb |
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|
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Sorry about that. The latter. The actual command is shown about 32 |
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lines up (except that my minimal install .iso was more recent)... |
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|
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IIRC, the last time I tried 'cp' it worked just as well as 'dd' |
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|
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cp install-x86-minimal-20121213.iso /dev/sdb |
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|
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The Wiki page at http://wiki.gentoo.org/wiki/LiveUSB/HOWTO shows a |
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rather involved process for creating a bootable USB drive from a |
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Gentoo minimal install .iso. However, AFAICT, you don't have to do |
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any of it. You can just write the .iso image to the usb flash drive |
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and then boot from it. |
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|
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I presume that at some point in the past, the minimal install .iso |
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images weren't bootable from a "hard-drive", and the process on the |
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wiki page was needed. But since the Gentoo .iso images _are_ bootable, |
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why not just say so and get rid of the old recipe? |
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|
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[The old recipe still works, and perhaps it's useful for generic .iso |
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images from elsewhere, but for a Gentoo install .iso it's a bit of a |
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time-waster.] |
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|
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-- |
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Grant Edwards grant.b.edwards Yow! BELA LUGOSI is my |
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at co-pilot ... |
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gmail.com |
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