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Author Topic: Unable to boot from installation ISO using Incus  (Read 375 times)

Offline Prekariat

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Unable to boot from installation ISO using Incus
« on: September 27, 2025, 08:48:46 AM »
I downloaded the current CorePlus ISO yesterday and tried to create an Incus based VM for Tiny Core. Unfortunately Incus won't boot from this custom ISO mounted on a QEMU Virtual CDROM. It looks like Incus uses an UEFI boot process (not BIOS), and I wonder if the platform and running as a guest VM are even supported? The host CPU is an N100.

Online Juanito

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Re: Unable to boot from installation ISO using Incus
« Reply #1 on: September 27, 2025, 12:00:48 PM »
You could try the CorePure64 iso - it has some uefi functionality.

Offline Prekariat

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Re: Unable to boot from installation ISO using Incus
« Reply #2 on: September 27, 2025, 12:35:30 PM »
I tried CorePure64 but the boot process still fails. The error messages shown in the Incus console are:

BdsDxe: failed to load Boot0001 "UEFI QEMU QEMU CD-ROM" from PciRoot (0x0)/Pci (0x1,0x1)/Pci (0x0,0x0)/Scsi (0x1,0x1): Not Found
BdsDxe: failed to load Boot0002 "UEFI QEMU QEMU HARDDISK" from PciRoot (0x0)/Pci (0x1,0x1)/Pci (0x0,0x0)/Scsi (0x1,0x1): Not Found

The hard disk is of course not yet initialised, so that particular failure is expected.

Online Juanito

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Re: Unable to boot from installation ISO using Incus
« Reply #3 on: September 28, 2025, 06:34:10 AM »
Sorry, I should have said try the TinyCorePure64 iso, not the CorePure64 iso.

The TinyCorePure64 iso contains /EFI/BOOT/efiboot.img and efiboot.img contains /EFI/BOOT/BOOTX64.EFI

If I understand correctly, you will need omvf firmware to provide the required uefi firmware in order to boot the TinyCorePure64 iso using qemu?

See: https://github.com/tianocore/edk2/tree/master/OvmfPkg "RUNNING OVMF on QEMU"
« Last Edit: September 28, 2025, 06:43:23 AM by Juanito »

Offline Prekariat

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Re: Unable to boot from installation ISO using Incus
« Reply #4 on: September 28, 2025, 08:35:04 AM »
Incus boots from TinyCorePure64 as a custom ISO, even without any additional firmware. This particular image does not appear to come with an installer, correct? Still, being able to boot at all certainly counts as a success. Thank you.

Online Juanito

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Re: Unable to boot from installation ISO using Incus
« Reply #5 on: September 28, 2025, 08:44:43 AM »
This particular image does not appear to come with an installer, correct?

No, but once booted, you can download/load tc-install/tc-install-GUI with tce-load.