Where is update-grub?
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Pete Howell
Nov 3, 2015, 7:22:16 PM11/3/15
to qubes-users
I've just updated the /etc/default/grub file, but there is no update-grub command in Qubes. How do I update grub??
Marek Marczykowski-Górecki
Nov 3, 2015, 7:34:45 PM11/3/15
to Pete Howell, qubes-users
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On Tue, Nov 03, 2015 at 04:22:16PM -0800, Pete Howell wrote:
> I've just updated the /etc/default/grub file, but there is no update-grub
> command in Qubes. How do I update grub??
Sorry, Fedora doesn't have such tool, you need to manually call:
sudo grub2-mkconfig -o /boot/grub2/grub.cfg
- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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On Tue, Nov 03, 2015 at 04:22:16PM -0800, Pete Howell wrote:
> I've just updated the /etc/default/grub file, but there is no update-grub
> command in Qubes. How do I update grub??
sudo grub2-mkconfig -o /boot/grub2/grub.cfg
- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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Pete Howell
Nov 3, 2015, 7:52:31 PM11/3/15
to qubes-users, w.peter...@gmail.com
Thanks!
I'm going through the Tuning Xen guide at http://wiki.xenproject.org/wiki/Tuning_Xen_for_Performance, and I had another question. Where would one set the option "cpus="all,^0-1" on the guests? In /var/lib/qubes/qubes.xml maybe? Is there a way to make the change through a GUI?
I'm going through the Tuning Xen guide at http://wiki.xenproject.org/wiki/Tuning_Xen_for_Performance, and I had another question. Where would one set the option "cpus="all,^0-1" on the guests? In /var/lib/qubes/qubes.xml maybe? Is there a way to make the change through a GUI?
Marek Marczykowski-Górecki
Nov 3, 2015, 7:58:34 PM11/3/15
to Pete Howell, qubes-users
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On Tue, Nov 03, 2015 at 04:52:30PM -0800, Pete Howell wrote:
> Thanks!
>
> I'm going through the Tuning Xen guide at
> http://wiki.xenproject.org/wiki/Tuning_Xen_for_Performance, and I had
> another question. Where would one set the option "cpus="all,^0-1" on the
> guests? In /var/lib/qubes/qubes.xml maybe? Is there a way to make the
> change through a GUI?
In Qubes guest configs are automatically generated. Additionally R3.0
> Thanks!
>
> I'm going through the Tuning Xen guide at
> http://wiki.xenproject.org/wiki/Tuning_Xen_for_Performance, and I had
> another question. Where would one set the option "cpus="all,^0-1" on the
> guests? In /var/lib/qubes/qubes.xml maybe? Is there a way to make the
> change through a GUI?
uses libvirt, not xl directly.
This all means that standard Xen configuration guides cannot be applied
directly. But you can still make some changes using libvirt syntax.
1. Go to /var/lib/qubes/appvms/NAME_OF_THE_VM
2. Copy NAME_OF_THE_VM.xml to some other file - for example custom.xml
3. Apply changes there
4. Start the VM using that config with qvm-start
- --custom-config=/FULL/PATH/TO/CONFIG NAME_OF_THE_VM
Of course replace NAME_OF_THE_VM and /FULL/PATH/TO/CONFIG with
appropriate values.
There is no way to make this permanent, you'll need to always add
- --custom-config switch to that VM, when you want to use your
modifications.
- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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Marek Marczykowski-Górecki
Nov 4, 2015, 2:10:05 AM11/4/15
to Pete Howell, qubes-users
On Tue, Nov 03, 2015 at 06:03:07PM -0700, Pete Howell wrote:
> I see a .conf file, but no .xml file in there.
Ah, yes, .conf.
> Would you be willing to
> consider an option under the Advanced tab to enter Xen-specific options
> for more permanent customizations in a future release?
We have a lot of other things to do, but if someone would implement
this, we'll accept such patches.
Also note that the config is in libvirt format, not all the Xen options
are available there.
> I see a .conf file, but no .xml file in there.
Ah, yes, .conf.
> Would you be willing to
> consider an option under the Advanced tab to enter Xen-specific options
> for more permanent customizations in a future release?
We have a lot of other things to do, but if someone would implement
this, we'll accept such patches.
Also note that the config is in libvirt format, not all the Xen options
are available there.
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