Hi. I have a triple boot system. When it was just Windows and Linux, Grub 2 let me choose which to boot into. Qubes was the last OS to be installed. I installed it via USB. After installation of Qubes, the computer would only boot into Qubes directly. I tried to follow the instructions of the official Qubes Multibooting document, however, it appears that neither /boot/grub2/grub.cfg or /etc/grub.d/40_custom exists in my Qubes system. In /boot/efi/EFI/qubes there is xen.cfg , xen.efi , xen-4.8.5-7.fc25.efi and a few other files.
When the computer starts up, I am able to boot into Bios setup and manually select which OS to boot into, or change the boot sequence priority . Partition 2 of my computer contains /boot/efi but it does not have /boot/grub or /etc/grub.d . That’s on Partition 3 of my computer, which is where Linux is, along with grubx64.efi . And I believe all 3 OSes are set to UEFI.
My question is, how do I get Qubes into my Grub so that I can select between the 3 OSes when I turn on my computer? Or is it more secure this way, where I need to boot into Bios to boot into Qubes? I’m a rookie, so please point me in the right direction with specific instructions. Thanks in advance!
Hi. I have a triple boot system. When it was just Windows and Linux, Grub 2 let me choose which to boot into. Qubes was the last OS to be installed. I installed it via USB. After installation of Qubes, the computer would only boot into Qubes directly. I tried to follow the instructions of the official Qubes Multibooting document, however, it appears that neither /boot/grub2/grub.cfg or /etc/grub.d/40_custom exists in my Qubes system. In /boot/efi/EFI/qubes there is xen.cfg , xen.efi , xen-4.8.5-7.fc25.efi and a few other files.
When the computer starts up, I am able to boot into Bios setup and manually select which OS to boot into, or change the boot sequence priority . Partition 2 of my computer contains /boot/efi but it does not have /boot/grub or /etc/grub.d . That’s on Partition 3 of my computer, which is where Linux is, along with grubx64.efi . And I believe all 3 OSes are set to UEFI.
My question is, how do I get Qubes into my Grub so that I can select between the 3 OSes when I turn on my computer?
Or is it more secure this way, where I need to boot into Bios to boot into Qubes?
...
You can reinstall grub to the master boot loader using the OS which originally controlled grub, (ie, something like grub-install /dev/sda". then regenerate the grub menu with "update-grub". Or you can modify the grub settings in qubes to provide the menus you want.
Rafael and trueriver, you mean boot into BIOS each time to choose the OS? That's the way I have it now. I hit f1 upon turning the computer on to go into BIOS, and then I have the choice between Qubes or Debian (which is done through Grub, which also gives me the option to choose Windows). Or if I don't boot into BIOS with f1, it goes directly to Grub. Is that what you guys mean?
As I mentioned in my first post, it seems that there might be a security benefit having it this way. Like trueriver said, people can potentially miss the fact that you have Qubes. And I think if the OSes aren't linked or don't know about each other, it's better for security.
--
You received this message because you are subscribed to a topic in the Google Groups "qubes-users" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/qubes-users/S-a9mrCjO2g/unsubscribe.
To unsubscribe from this group and all its topics, send an email to qubes-users...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/7128ce7e-98ee-4221-a663-43def84432d1%40googlegroups.com.
Rafael and trueriver, you mean boot into BIOS each time to choose the OS? That's the way I have it now. I hit f1 upon turning the computer on to go into BIOS, and then I have the choice between Qubes or Debian (which is done through Grub, which also gives me the option to choose Windows). Or if I don't boot into BIOS with f1, it goes directly to Grub. Is that what you guys mean?
--
You received this message because you are subscribed to a topic in the Google Groups "qubes-users" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/qubes-users/S-a9mrCjO2g/unsubscribe.
To unsubscribe from this group and all its topics, send an email to qubes-users...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/989b10ed-5150-42fc-9638-4d6013492609%40googlegroups.com.