Re: ATA support for 4k sector size

From: H. Peter Anvin
Date: Wed Feb 25 2009 - 18:34:46 EST


Martin K. Petersen wrote:

I'll defer to people like yourself for how this needs to work wrt. boot
loaders and creating partition tables. I'm CC:ing Eric Sandeen because
he's also looking at this...


I wish it was left to people like myself. Realistically when it comes to disks with 4096-byte logical sectors it going to matter how the firmware chooses to expose it.

Most likely, the universe will explode at this time, since very few bootloaders can deal with a sector size other than 512 bytes, and virtually every partition table format contains a sector size dependency, which also means you'll break any mechanical imaging solution.

It's going to hurt :(

-hpa
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