Latest snapshot running on 5.2.8 @win7x64 (everything works and seems to be stable) Do you use GPT or MBR? Is it SATA or PATA/IDE?
Can you boot your hda0:/bsd from cd? Can you boot from CD, mount drive and fsck it? xx:2$ dmesg OpenBSD 6.3-current (GENERIC) #13: Thu Apr 26 07:46:22 MDT 2018 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC real mem = 1056899072 (1007MB) avail mem = 1017061376 (969MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.5 @ 0xe1000 (10 entries) bios0: vendor innotek GmbH version "VirtualBox" date 12/01/2006 bios0: innotek GmbH VirtualBox acpi0 at bios0: rev 2 acpi0: sleep states S0 S5 acpi0: tables DSDT FACP APIC SSDT acpi0: wakeup devices acpitimer0 at acpi0: 3579545 Hz, 32 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz, 3492.51 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,MWAIT,SSSE3,CX16,PCID,SSE4.1,SSE4.2,POPCNT,AES,XSAVE,AVX,RDRAND,NXE,RDTSCP,LONG,LAHF,ITSC,FSGSBASE,MELTDOWN cpu0: 256KB 64b/line 8-way L2 cache cpu0: smt 0, core 0, package 0 mtrr: CPU supports MTRRs but not enabled by BIOS cpu0: apic clock running at 1000MHz cpu0: mwait min=64, max=64 ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins , remapped to apid 1 acpiprt0 at acpi0: bus 0 (PCI0) acpicpu0 at acpi0: C1(@1 halt!) acpiac0 at acpi0: AC unit online acpivideo0 at acpi0: GFX0 pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02 pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00 pciide0 at pci0 dev 1 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide0 channel 0 drive 0 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <VBOX, CD-ROM, 1.0> ATAPI 5/cdrom removable wd0 at pciide0 channel 0 drive 1: <VBOX HARDDISK> wd0: 128-sector PIO, LBA, 20480MB, 41943040 sectors cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 wd0(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 2 pciide0: channel 1 disabled (no drives) vga1 at pci0 dev 2 function 0 "InnoTek VirtualBox Graphics Adapter" rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) em0 at pci0 dev 3 function 0 "Intel 82540EM" rev 0x02: apic 1 int 19, address 08:00:27:7d:19:91 "InnoTek VirtualBox Guest Service" rev 0x00 at pci0 dev 4 function 0 not configured auich0 at pci0 dev 5 function 0 "Intel 82801AA AC97" rev 0x01: apic 1 int 21, ICH ac97: codec id 0x83847600 (SigmaTel STAC9700) audio0 at auich0 ohci0 at pci0 dev 6 function 0 "Apple Intrepid USB" rev 0x00: apic 1 int 22, version 1.0 piixpm0 at pci0 dev 7 function 0 "Intel 82371AB Power" rev 0x08: apic 1 int 23 iic0 at piixpm0 isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard, using wsdisplay0 pms0 at pckbc0 (aux slot) wsmouse0 at pms0 mux 0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 usb0 at ohci0: USB revision 1.0 uhub0 at usb0 configuration 1 interface 0 "Apple OHCI root hub" rev 1.00/1.00 addr 1 uhidev0 at uhub0 port 1 configuration 1 interface 0 "VirtualBox USB Tablet" rev 1.10/1.00 addr 2 uhidev0: iclass 3/0 ums0 at uhidev0: 5 buttons, Z and W dir wsmouse1 at ums0 mux 0 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on wd0a (c157cae92dc08f0c.a) swap on wd0b dump on wd0b xx:3$ > > Hi! I installed the latest 04.10 snapshot, the install procedure went > fine, but after reboot the VM stucks at endless boot loop . It prints only > the "booting hda0:/bsd" line.. before reboot The 04.03 snapshot works fine. > There is a similar experience for someone with Virtualbox 5.2.8? >