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[Qemu-devel] Re: [RESEND][PATCH v2 1/2] Rework -boot option

From: Jan Kiszka
Subject: [Qemu-devel] Re: [RESEND][PATCH v2 1/2] Rework -boot option
Date: Sun, 28 Jun 2009 20:15:02 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv: Gecko/20080226 SUSE/ Thunderbird/ Mnenhy/

Avi Kivity wrote:
> On 06/27/2009 11:11 AM, Jan Kiszka wrote:
>> This patch changes the boot command line option to the canonical format
>>   -boot [order=]drives[,interactive=on|off]
>> where 'drives' is using the same format as the old -boot. The format
>> switch allows to add the 'interactive' option and use the existing
>> infrastructure to parse it. However, the old format is still understood
>> and will be processed at least for a transition time.
>> The state of 'interactive' is transfered to the firmware via the new
>> configuration value FW_CFG_BOOT_INTERACTIVE.
> Perhaps interactive (and the boot order itself) should be forgotten
> after a successful boot?  A typical use case is to boot an installer off
> the cdrom; the next boot ought to try the hard disk.  But perhaps other
> use cases don't want that.

We could extend the new format to

  -boot [order=drives][,once=drives][,interactive=on|off]

where 'once' specifies the order to be used only for the very first boot
of this machine.


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