linux-kernel - Re: Linix-3.6.3 sda, sdb drives in reverse order (with a USB 2.0 drives and a monolithic kernel configuration)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 25 Oct 2012 17:11:07 -0600
From:	Chris Friesen <chris.friesen@...band.com>
To:	Wallak <wallak@...e.fr>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Linix-3.6.3 sda, sdb drives in reverse order (with a USB 2.0
 drives and a monolithic kernel configuration)

On 10/25/2012 04:49 PM, Wallak wrote:
> I've a very annoying behavior with the linux-3.6.x kernels release, and
> a monolithic configuration. The USB 2.0 drives are mapped first with
> /dev/sda, /dev/sdb... devices, and than the SATA AHCI drives come after.
> This is out of order with the BIOS configuration and breaks a program
> like lilo. This is also annoying when we use a static partition mapping.
>
> Linux-3.5 works fine. Where this bug come from ? Is this a patch to get
> the old, and classical behavior ?

As you have discovered it's fragile to rely on /dev/sd* names since a 
BIOS update, kernel update, or motherboard replacement could conceivably 
cause them to change.

Better to use something like partition labels that you control and that 
don't change.

Chris
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/