Output from boot (some char may be not real) (last line)
#How to use virtualbox efi install
This is an odd oversight on VirtualBox’s part.After installing Ubuntu 13.10 on a virtualbox using EFI boot option, the install process finish but after the first reboot it's impossible to go forward.Īlready try with rEFInd and boot-repair but nothing changes The easiest solution is to rename the ESP:EFI\REFIND directory to ESP:EFI\BOOT, and then rename ESP:EFI\BOOT\REFIND_X64.EFI to ESP:EFI\BOOT\BOOTX64.EFI. This means that the boot entry is lost when the machine is shutdown. Update: So, VirtualBox doesn’t save the contents of the virtual machine’s NVRAM. I’m a bit of an old fart at this point, so new things that change what I’ve been accustomed to for decades take a little longer to grow on me. I’m coming around to liking UEFI, where before I didn’t. I’m in the process of taking it a bit further by installing rEFInd and letting it handle booting, but I’m not going to go into detail on that for now as I’m still learning how it operates. The Slackware installer will pick up the ESP and offer to format it as FAT32 and add an entry to the installed system’s fstab to mount it at /boot/efi.Īfter the installer has worked its magic an option to install ELILO will be offered which adds an appropriate entry to the UEFI’s NVRAM to mark itself as a boot loader. Remember that an EFI System Partition will be required the recommended size of an ESP is 512MB, which should be plenty. Login as root, partition the drive as usual, and let setup work its magic.
![how to use virtualbox efi how to use virtualbox efi](https://www.wikigain.com/wp-content/uploads/2020/01/Replace-VM-Name.png)
Eventually, we should end up with the Slackware installer’s login screen: Wait a bit while everything gets loaded (the initrd is 40MB large, so this can take a while).
![how to use virtualbox efi how to use virtualbox efi](https://i.ytimg.com/vi/VTY_fsY0m0c/maxresdefault.jpg)
Note that this will only work on kernels that have EFISTUB support, which Slackware does (and so should the kernel of any modern, EFI-aware distribution at this point). With this, we can use the EFI shell to load and boot the kernel as though it were any old program. What we need from this is the command-line with which grub would load the kernel, if it were working. We can view grub.cfg via the shell’s built-in “type” command ( type grub.cfg). There’s two files we’re concerned with: grub.cfg and huge.s. This directory is the standard location where boot loaders are stored. Select the device as one would a normal DOS drive, which should put us in the root directory of the CD-ROM.Ĭhange directories into \EFI\BOOT (I missed this in the screenshot, but it’s accomplished with the command cd efi\boot):
#How to use virtualbox efi windows
If you’re old enough to remember, or pay enough attention to how Windows maps hard drives, these are similar to the drive letters both operating systems use to reference a drive (i.e. (The mapping table will be slightly different on a clean VM I took these screenshots after I’d already got the system partitioned and installed.)įrom here, we’re looking for the CDROM FS or BLK device. Reset the VM and hammer F12 to bring up the EFI configuration options.Īt this point, we’re dropped to a shell that should be somewhat familiar to anyone who remembers DOS or similar command-line interfaces. Unfortunately not all real hardware includes this, or even a decent EFI implementation (though this is less of an issue now compared to a few years ago). So how does one install when the installation media won’t start? Fortunately VB’s EFI implementation has a built-in shell.
![how to use virtualbox efi how to use virtualbox efi](https://www.thewindowsclub.com/wp-content/uploads/2022/03/enable-efi-virtualbox-virtual-machine-1.png)
I also switched the virtual disk drives to use SATA rather than PATA, which is the default when one selects “Other Linux”: Starting with the basics, I created a new VM and enabled EFI:
![how to use virtualbox efi how to use virtualbox efi](https://dansotech.files.wordpress.com/2013/09/vboxefipatch.png)
At the time I’m writing this, Slackware 14.2 is the latest release, while VirtualBox is at v5.1.28. To experiment, I turned to Oracle’s VirtualBox hardware virtualization software, and my go-to Linux distribution – Slackware. After years of resisting the BIOS‘ successor, UEFI, a nifty little bit of hardware I recently purchased has left me with no alternative but to finally figure out how the darned thing works.