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On 2009-09-13, Neil Bothwick <neil@××××××××××.uk> wrote: |
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> Alternatively, set everything up as you need to start with, |
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> then dd the entire device, including partitioning and |
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> bootloader, with |
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> |
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> dd if=/dev/sda of=firewall.img |
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That's how we used to do it when we were shipping CF-based |
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products. |
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The one gotcha you have to look out for is that CF cards vary |
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considerably in size (even though they all have identical part |
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numbers and are all labeled as 512MB or whatever). You can't |
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expect to be able to fill up 512MB CF card #1, and then always |
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be able to copy that to 512MB CF card #2. Card #2 might be |
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smaller than card #1. So you might want to check the capacity |
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of a good sized sample of cards and make your image a few |
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percent smaller than the smallest one you find. |
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|
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-- |
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Grant |
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