From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jack Wang Subject: Re: Linux boot Support for 4KB sector drives ? Date: Tue, 02 Jul 2013 14:14:10 +0200 Message-ID: <51D2C412.7090006@gmail.com> References: <340C71CD25A7EB49BFA81AE8C83926671C6E3111@BBY1EXM10.pmc_nt.nt.pmc-sierra.bc.ca> <72590A5E6725454E9DD04F4C119FC007BC061E@bby1exm14.pmc_nt.nt.pmc-sierra.bc.ca> <51D29634.1020600@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-bk0-f42.google.com ([209.85.214.42]:55221 "EHLO mail-bk0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751488Ab3GBMOE (ORCPT ); Tue, 2 Jul 2013 08:14:04 -0400 Received: by mail-bk0-f42.google.com with SMTP id jk13so2281388bkc.1 for ; Tue, 02 Jul 2013 05:14:01 -0700 (PDT) In-Reply-To: <51D29634.1020600@gmail.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Mahesh Rajashekhara Cc: Aaron Lu , Kishore Babu Lukka , JBottomley@Parallels.com, linux-scsi@vger.kernel.org, Tony Ruiz , Achim Leubner , Asha P On 07/02/2013 10:58 AM, Aaron Lu wrote: > On 07/02/2013 03:11 PM, Kishore Babu Lukka wrote: >> Adding Asha also. >> >> -----Original Message----- >> From: Mahesh Rajashekhara >> Sent: Monday, July 01, 2013 11:41 AM >> To: JBottomley@Parallels.com; linux-scsi@vger.kernel.org >> Cc: Tony Ruiz; Achim Leubner; Mahesh Rajashekhara; Kishore Babu Lukka >> Subject: Linux boot Support for 4KB sector drives ? >> >> Hello, >> >> Does any of the Linux OS flavors support booting from the 4K sector >> (advanced format) drive in legacy BIOS mode (MBR partitioning scheme) ? > > That depends on boot loader, not Linux I think. > Linux has support for 4k sector drive, but if the boot loader > doesn't, it can't fetch the kernel into memory and load Linux. > > Legacy grub makes use of BIOS interrupt service and thus shouldn't > be able to support 4k sector drive, I don't know the status of grub2. > > Thanks, > Aaron > >> >> Thanks & Regards, >> Mahesh Hello, It also depends on HBA BIOS driver, which need to properly handle 4k sector. Linux kernel do support 4k sector. Regards, Jack