2021-05-18 14:21:48 +02:00
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---
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title: How to install FreeBSD on x86 GNU GRUB payload
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2023-12-06 20:41:16 +01:00
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x-unreviewed: true
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2021-05-18 14:21:48 +02:00
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...
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FreeBSD might show graphical corruption during bootup. You can fix this by
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altering the order in which kernel modules/drivers are loaded. First, try moving
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video to an earlier stage on the boot process, or try moving it to a later stage
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instead. With this, you should be able to get a working display.
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freebsd.img is the installation image for FreeBSD. Adapt the filename
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accordingly, for whatever FreeBSD version you use.
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Prepare the USB drive (in FreeBSD)
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----------------------------------
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[This page](https://www.freebsd.org/doc/handbook/bsdinstall-pre.html) on
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the FreeBSD website shows how to create a bootable USB drive for
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installing FreeBSD. Use the *dd* on that page.
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Prepare the USB drive (in NetBSD)
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---------------------------------
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[This
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page](https://wiki.netbsd.org/tutorials/how_to_install_netbsd_from_an_usb_memory_stick/)
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on the NetBSD website shows how to create a NetBSD bootable USB drive
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from within NetBSD itself. You should use the *dd* method documented
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there; you can use this with any ISO, including FreeBSD.
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Prepare the USB drive (in LibertyBSD or OpenBSD)
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------------------------------------------------
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If you downloaded your ISO on a LibertyBSD or OpenBSD system, here is
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how to create the bootable FreeBSD USB drive:
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Connect the USB drive. Check dmesg:
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dmesg | tail
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Check to confirm which drive it is, for example, if you think its sd3:
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disklabel sd3
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Check that it wasn't automatically mounted. If it was, unmount it. For
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example:
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doas umount /dev/sd3i
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dmesg told you what device it is. Overwrite the drive, writing the
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FreeBSD installer to it with dd. For example:
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doas dd if=freebsd.img of=/dev/rsdXc bs=1M; sync
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You should now be able to boot the installer from your USB drive.
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Continue reading, for information about how to do that.
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Prepare the USB drive (in GNU+Linux)
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------------------------------------
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If you downloaded your ISO on a GNU+Linux system, here is how to create
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the bootable FreeBSD USB drive:
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Connect the USB drive. Check dmesg:
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dmesg
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Check lsblk to confirm which drive it is:
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lsblk
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Check that it wasn't automatically mounted. If it was, unmount it. For
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example:
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sudo umount /dev/sdX\*
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umount /dev/sdX\*
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dmesg told you what device it is. Overwrite the drive, writing your
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distro ISO to it with dd. For example:
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sudo dd if=freebsd.img of=/dev/sdX bs=8M; sync
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dd if=freebsd.img of=/dev/sdX bs=8M; sync
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You should now be able to boot the installer from your USB drive.
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Continue reading, for information about how to do that.
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Installing FreeBSD without full disk encryption
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-----------------------------------------------
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Press C in GRUB to access the command line:
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grub> kfreebsd (usb0,gpt3)/boot/kernel/kernel
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grub> set FreeBSD.vfs.mountfrom=ufs:/dev/da1p3\
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grub> boot
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It will start booting into the FreeBSD installer. Follow the normal
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process for installing FreeBSD.
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Installing FreeBSD with full disk encryption
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--------------------------------------------
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TODO
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Booting
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-------
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TODO
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Configuring Grub
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----------------
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TODO
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Troubleshooting
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===============
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Most of these issues occur when using libreboot with coreboot's 'text
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mode' instead of the coreboot framebuffer. This mode is useful for
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booting payloads like memtest86+ which expect text-mode, but for FreeBSD
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it can be problematic when they are trying to switch to a framebuffer
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because it doesn't exist.
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In most cases, you should use the corebootfb ROM images. There ROM images
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have `corebootfb` in the file name, and they start in a high resolution frame
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buffer, provided by coreboot's `libgfxinit` library.
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won't boot...something about file not found
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---------------------------------------------
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Your device names (i.e. usb0, usb1, sd0, sd1, wd0, ahci0, hd0, etc) and
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numbers may differ. Use TAB completion.
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