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From: | Floris Bos / Maxnet |
Subject: | Re: [Qemu-devel] [PATCH v2] ide: Adds "model=s" option, allowing the user to override the default disk model name "QEMU HARDDISK" |
Date: | Mon, 12 Mar 2012 16:27:25 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2 |
On 03/12/2012 02:48 PM, Markus Armbruster wrote:
Floris Bos<address@hidden> writes:Some Linux distributions use the /dev/disk/by-id/scsi-SATA_name-of-disk-model_serial addressing scheme when refering to partitions in /etc/fstab and elsewhere. This causes problems when starting a disk image taken from an existing physical server under qemu, because when running under qemu name-of-disk-model is always "QEMU HARDDISK" This patch introduces a model=s option which in combination with the existing serial=s option can be used to fake the disk the operating system was previously on, allowing the OS to boot properly. Cc: address@hidden Signed-off-by: Floris Bos<address@hidden>At first glance: 1. IDE only, scsi-disk is missing.
Correct. IDE support is easy.Adding SCSI support is more complicated, because "model" and "serial" are not the only factors that can make up a /dev/disk/by-id link
Could be a combination of 3 fields: vendor, model and serial.But could also be based on another unique ascii or binary identifier provided by the drive through Vital Product Data page 83h.
-- Yours sincerely, Floris Bos
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