Please provide an option to print the default hardware configuration as command-line options, to make -nodefaults easier to use

Bug #1583421 reported by Josh Triplett on 2016-05-19
16
This bug affects 3 people
Affects Status Importance Assigned to Milestone
QEMU
Wishlist
Unassigned

Bug Description

For full customization of the default set of hardware qemu supports, a user can pass -nodefaults and then manually specify each device they want. Many specific options document what they translate to in terms of the full configuration model; however, the defaults for any given platform don't.

I'd love to have documentation of the default hardware configuration, in terms of qemu command-line options, to make it easy to run qemu -nodefaults, paste in the default command-line, and edit it.

As this varies by emulated machine, perhaps qemu could have a command-line option to print a specific machine (e.g. pc-i440fx-2.5) in the form of qemu command-line options?

Uqbar (uqbar) wrote :

I think that just plain configuration in the manual could be enough.
The command line option is a very good idea, indeed.
Maybe also a monitor command could be helpful.

Narcis Garcia (narcisgarcia) wrote :

It's also necessary to document default hardware configuration of each past release, because using defaults becomes a problem to keep guest OS licenses when upgrading Qemu version.

Thomas Huth (th-huth) on 2019-05-05
Changed in qemu:
importance: Undecided → Wishlist
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