BIOS and 4KB sectors

Date: 2011-07-30 08:17 am (UTC)
From: [identity profile] yuhong.wordpress.com
"Why yes, 15 years later BIOSes still tend to assume 512 bytes. Which is why your 4K sector disk is much harder to work with than you'd like it to be."
Not to mention that probably many real mode code like DOS applications that uses INT 13 have the sector size hardcoded to 512 bytes, as this has never changed before since 1981.
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Matthew Garrett

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Power management, mobile and firmware developer on Linux. Security developer at Nebula. Ex-biologist. @mjg59 on Twitter. Content here should not be interpreted as the opinion of my employer.

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