On 17/01/2024 at 17:48, Vladimir 'phcoder' Serbinenko wrote:
Le mer. 17 janv. 2024, 18:10, Pascal Hambourg <pas...@plouf.fr.eu.org> a
écrit :
On 17/01/2024 at 04:15, Vladimir 'phcoder' Serbinenko wrote:
+if [ "\$grub_platform" != "efi" ]; then
This is not the right check. Only "pc" platform supports chainloadin
boot sector. All other: coreboot, qemu, emu, ieee1275, xen and
non-x86. The only one which might is xen_pvh but this needs to be
checked
From
<https://wiki.xenproject.org/wiki/Understanding_the_Virtualization_Spectrum#PVH>:
"This is exactly what PVH is. It’s a fully PV kernel mode, running with
paravirtualized disk and network, paravirtualized interrupts and timers,
no emulated devices of any kind (and thus no qemu), no BIOS or legacy boot"
If I understand correctly, "no BIOS or legacy boot" implies no boot
sector chainloading.
I expect os-prober to report boot type "chain" only on platforms which
support chainloading. Isn't it enough ?
Os-prober has no idea how system is booted. And one of my systems can boot
as any of coreboot, multiboot, EFI, PC or xen. Then I can run qemu version
using whole disk. This together means that the same disk can boot in any
way.
Fine, then assume that os-prober boot type "chain" actually means "BIOS
boot sector" and show menu entries only if grub_target = pc ?
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