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OpenBSD Installation and Upgrading Installing and upgrading OpenBSD. |
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Multibooting
I am interested in multibooting Ubuntu and OpenBSD. I did read the section on the faq, but I was really interested in, was finding out if it's possible to use full disk encryption with two operating systems installed, or at least have them both installations encrypted separately?
thanks |
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It is possible to dual boot an OpenBSD gpt partition but you need to use a 3rd party bootloader.
The links below are not officially supported, proceed at your own risk. https://eerielinux.wordpress.com/201...-about-gptefi/ https://wiki.debian.org/GrubEFIReinstall https://packages.debian.org/sid/admin/refind |
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I have had success multibooting OpenBSD on a GPT disk in UEFI mode.
The OpenBSD installer copies their UEFI bootloader from /usr/mdec/bootx64.efi (bootia32.efi for 32-bit systems) to the /EFI/BOOT/ directory on the EFI system partition. To start the OpenBSD bootloader, I used systemd-boot with this configuration: Code:
# $ESP/loader/entries/openbsd.conf title OpenBSD efi /EFI/BOOT/BOOTX64.EFI Code:
menuentry 'OpenBSD' { set root=(hd0,4) chainloader /EFI/BOOT/BOOTX64.EFI } Last edited by Head_on_a_Stick; 2nd June 2017 at 01:50 AM. Reason: idem |
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@Head_on_a_Stick.
Could you share your partition scheme? I'm mainly interested in Debian 9/OpenBSD using Debian's Grub2. |
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I don't actually have that system any more but it was fairly simple: a 512MiB EFI system partition (type "ef00" in gdisk, FAT32-formatted), a standard GNU/Linux partition (type "8300", btrfs) and an OpenBSD disklabel ("a600").
The OpenBSD installer used the pre-existing ESP as /dev/sd0i Last edited by Head_on_a_Stick; 3rd June 2017 at 03:16 AM. Reason: corrected GNU/Linux partition code (8200 is for swap). |
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any ideas about OpenBSD + Windows FDE while using Windows boot manager?
first softraid crypto for OpenBSD and veracrypt for windows? |
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The initial question was about Ubuntu, so that's why I asked.
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I currently dual boot Slackware64-current and OpenBSD 6.1. Lilo is installed to the MBR. I put the following addition at the tail end of /etc/lilo.conf. This assumes that swap is sda1, / is sda2, /home is /dev/sda3, and OpenBSD is on /dev/sda4.
other = /dev/sda4 label = OpenBSD table = /dev/sda
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