No longer single-user on unclean fs?

From: Bjoern A. Zeeb <bzeeb-lists_at_lists.zabbadoz.net>
Date: Sun, 24 Aug 2025 14:32:11 UTC
Hi,

I just updated a bhyve file system and forgot to unmount it on the host;
starting the guest I am surprised to see Login: and not press enter for
/bin/sh from init ...

...
isa_probe_children: disabling PnP devices
atkbdc: atkbdc0 already exists; skipping it
atrtc: atrtc0 already exists; skipping it
attimer: attimer0 already exists; skipping it
sc: sc0 already exists; skipping it
isa_probe_children: probing non-PnP devices
sc0 failed to probe on isa0
vga0: <Generic ISA VGA> at port 0x3b0-0x3bb iomem 0xb0000-0xb7fff pnpid PNP0900 on isa0
pcib0: allocated type 4 (0x3b0-0x3bb) for rid 0 of vga0
isa_probe_children: probing PnP devices
Device configuration finished.
procfs registered
Statistical TSC calibration took 18310 us and 4437 data points
Timecounter "TSC" frequency 1895998951 Hz quality 1000
Statistical lapic calibration took 11276 us and 699 data points
lapic: Divisor 2, Frequency 67108868 Hz
Timecounters tick every 10.000 msec
lo0: bpf attached
vlan: initialized, using hash tables with chaining
IPsec: Initialized Security Association Processing.
tcp_init: net.inet.tcp.tcbhashsize auto tuned to 131072
usb_needs_explore_all: no devclass
ahcich0: AHCI reset...
pci0: driver added
found-> vendor=0x8086, dev=0x2725, revid=0x1a
         domain=0, bus=0, slot=5, func=0
         class=02-80-00, hdrtype=0x00, mfdev=0
         cmdreg=0x0007, statreg=0x0010, cachelnsz=0 (dwords)
         lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
         powerspec 3  supports D0 D3  current D0
         MSI supports 1 message, 64 bit
         MSI-X supports 16 messages in map 0x10
pci0:0:5:0: reprobing on driver added
ahcich0: SATA connect time=0us status=00000133
ahcich0: AHCI reset: device found
ahcich0: AHCI reset: device ready after 0ms
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <BHYVE SATA DISK 001> ACS-2 ATA SATA 3.x device
ada0: Serial Number BHYVE-DEEE-91F5-8E77
ada0: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 16384MB (33554432 512 byte sectors)
pass0 at ahcich0 bus 0 scbus0 target 0 lun 0
pass0: <BHYVE SATA DISK 001> ACS-2 ATA SATA 3.x device
pass0: Serial Number BHYVE-GEOM: new disk ada0
DEEE-91F5-8E77
pass0: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
pass0: Command Queueing enabled
Trying to mount root from ufs:/dev/ada0p4 [rw]...
WARNING: WITNESS option enabled, expect reduced performance.
WARNING: / was not properly dismounted
WARNING: /: mount pending error: blocks 177952 files 3815
efirtc0: providing initial system time
Dual Console: Serial Primary, Video Secondary
start_init: trying /sbin/init

FreeBSD/amd64 (Amnesiac) (ttyu0)

login:


-- 
Bjoern A. Zeeb                                                     r15:7