Hi,
I tried to set up serial console on my system in addition to the
regular monitor/keyboard, and I am running into a problem.
I want to have both local monitor and serial console.
This is what I have tried.
The system is booted with console on the attached monitor/keyboard.
I change the line in /etc/ttys for tty00 to enable getty on tty00:
tty00 "/usr/libexec/getty std.9600" vt220 on secure
I reloaded init after the change by sending SIGHUP to it. I can see getty
process running for tty00. Terminal emulator connected to the serial port
shows nothing.
Now I reboot the system and type "set tty com0" at the boot prompt
on the locally attached keyboard/monitor. The boot process continues
on the serial port and I see all output on the terminal emulator.
After boot finishes, I have login prompt both on the serial port
and on the monitor/keyboard. Login works from both.
It appears that serial console works for me only if I booted the system
from it. I am not able to activate serial console if the system was
not booted from it.
Is this expected behavior or am I doing something wrong here?
I can see a difference in dmesg between boot on serial console
and regular monitor/keyboard.
Boot on serial has
com0 at acpi0 UAR1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo
com0: console
com1 at acpi0 UAR2 addr 0x2f8/0x8 irq 3: ns16550a, 16 byte fifo
com2 at acpi0 UAR3 addr 0x3e8/0x8 irq 10: ns16550a, 16 byte fifo
com3 at acpi0 UAR4 addr 0x2e8/0x8 irq 11: ns16550a, 16 byte fifo
Boot on monitor/keyboard has
com0 at acpi0 UAR1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo
com1 at acpi0 UAR2 addr 0x2f8/0x8 irq 3: ns16550a, 16 byte fifo
com2 at acpi0 UAR3 addr 0x3e8/0x8 irq 10: ns16550a, 16 byte fifo
com3 at acpi0 UAR4 addr 0x2e8/0x8 irq 11: ns16550a, 16 byte fifo
Full dmesg is below:
OpenBSD 7.1 (GENERIC.MP) #465: Mon Apr 11 18:03:57 MDT 2022
dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8486543360 (8093MB)
avail mem = 8212041728 (7831MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xec120 (16 entries)
bios0: vendor American Megatrends Inc. version "BASIIA06" date 03/23/2021
bios0: NF792I NF792I
acpi0 at bios0: ACPI 5.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC FPDT FIDT MCFG SSDT SSDT SSDT UEFI LPIT CSRT
acpi0: wakeup devices XHC1(S4) HDEF(S4) RP01(S4) PXSX(S4) RP02(S4) PXSX(S4)
RP03(S4) PXSX(S4) RP04(S4) PXSX(S4) BRC1(S0)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1600.43 MHz, 06-4c-04
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu0: 1MB 64b/line 16-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 80MHz
cpu0: mwait min=64, max=64, C-substates=0.2.0.0.0.0.3.3, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1600.02 MHz, 06-4c-04
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu1: 1MB 64b/line 16-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1600.02 MHz, 06-4c-04
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu2: 1MB 64b/line 16-way L2 cache
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Celeron(R) CPU N3160 @ 1.60GHz, 1600.02 MHz, 06-4c-04
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu3: 1MB 64b/line 16-way L2 cache
cpu3: smt 0, core 3, package 0
ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 115 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xe0000000, bus 0-255
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (RP01)
acpiprt2 at acpi0: bus 2 (RP02)
acpiprt3 at acpi0: bus 3 (RP03)
acpiprt4 at acpi0: bus -1 (RP04)
acpiec0 at acpi0: not present
acpicmos0 at acpi0
acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
com0 at acpi0 UAR1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo
com1 at acpi0 UAR2 addr 0x2f8/0x8 irq 3: ns16550a, 16 byte fifo
com2 at acpi0 UAR3 addr 0x3e8/0x8 irq 10: ns16550a, 16 byte fifo
com3 at acpi0 UAR4 addr 0x2e8/0x8 irq 11: ns16550a, 16 byte fifo
"BCM2E64" at acpi0 not configured
"BCM4752" at acpi0 not configured
"SMO91D0" at acpi0 not configured
"INT33F7" at acpi0 not configured
"INT33BE" at acpi0 not configured
"INTCF1C" at acpi0 not configured
"ATML1000" at acpi0 not configured
"MSFT0002" at acpi0 not configured
acpibtn0 at acpi0: PWRB
acpibtn1 at acpi0: SLPB
"PNP0C0B" at acpi0 not configured
acpicpu0 at acpi0: C2(10@500 mwait.1@0x58), C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C2(10@500 mwait.1@0x58), C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C2(10@500 mwait.1@0x58), C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C2(10@500 mwait.1@0x58), C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: CLK0, resource for CAMD
acpipwrres1 at acpi0: CLK0, resource for CAM1
acpipwrres2 at acpi0: CLK1, resource for CAM2, CAM3
acpipwrres3 at acpi0: USBC, resource for XHC1
acpitz0 at acpi0: critical temperature is 127 degC
acpipwrres4 at acpi0: FN00, resource for FAN0
acpitz1 at acpi0: critical temperature is 95 degC
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: DD1F
cpu0: using VERW MDS workaround
cpu0: Enhanced SpeedStep 1600 MHz: speeds: 1601, 1600, 1520, 1440, 1360, 1280,
1200, 1120, 1040, 960, 880, 800, 720, 640, 560, 480 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Braswell Host" rev 0x35
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics" rev 0x35
drm0 at inteldrm0
inteldrm0: msi, CHERRYVIEW, gen 8
ahci0 at pci0 dev 19 function 0 "Intel Braswell AHCI" rev 0x35: msi, AHCI 1.3.1
ahci0: port 1: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 1 lun 0: <ATA, TS512GMTS430S, 2202> naa.57c35481e87f1896
sd0: 488386MB, 512 bytes/sector, 1000215216 sectors, thin
xhci0 at pci0 dev 20 function 0 "Intel Braswell xHCI" rev 0x35: msi, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00
addr 1
"Intel Braswell TXE" rev 0x35 at pci0 dev 26 function 0 not configured
azalia0 at pci0 dev 27 function 0 "Intel Braswell HD Audio" rev 0x35: msi
azalia0: codecs: Realtek ALC662, Intel/0x2883, using Realtek ALC662
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel Braswell PCIE" rev 0x35: msi
pci1 at ppb0 bus 1
em0 at pci1 dev 0 function 0 "Intel I211" rev 0x03: msi, address
00:30:18:0c:34:63
ppb1 at pci0 dev 28 function 1 "Intel Braswell PCIE" rev 0x35: msi
pci2 at ppb1 bus 2
em1 at pci2 dev 0 function 0 "Intel I211" rev 0x03: msi, address
00:30:18:0c:34:64
ppb2 at pci0 dev 28 function 2 "Intel Braswell PCIE" rev 0x35: msi
pci3 at ppb2 bus 3
ppb3 at pci3 dev 0 function 0 "ASMedia ASM1083/1085 PCIE-PCI" rev 0x04
pci4 at ppb3 bus 4
pcib0 at pci0 dev 31 function 0 "Intel Braswell PCU LPC" rev 0x35
ichiic0 at pci0 dev 31 function 3 "Intel Braswell SMBus" rev 0x35: apic 1 int 18
iic0 at ichiic0
iic0: addr 0x2d 01=03 02=00 03=00 04=00 08=4c 09=00 0a=20 0b=00 0c=55 0d=00
0f=20 10=00 11=00 12=06 14=00 15=00 16=00 17=00 20=d0 21=68 22=ac 23=88 24=73
25=d1 26=c6 27=d1 2d=66 2e=7b 2f=a3 30=00 38=00 39=00 3f=00 40=44 41=00 42=00
43=00 44=00 45=00 46=00 47=00 48=00 49=00 4a=00 4b=00 4c=00 4d=00 4e=00 4f=00
50=00 51=47 53=00 54=00 55=2d 56=02 60=00 61=00 62=00 63=00 64=00 66=00 67=00
68=00 69=00 6b=06 6c=44 6d=04 6f=00 70=2c 72=26 74=29 7a=00 7b=00 7c=00 7d=00
7e=00 7f=00 80=46 81=3c 82=7f 83=55 84=64 85=55 8e=aa 90=00 91=05 92=05 93=00
94=00 96=15 97=00 98=22 99=02 9a=00 9b=3f 9c=55 9d=05 9e=bd 9f=1a a0=0f a2=00
a3=66 a4=03 a6=50 a7=4b a8=3d a9=28 ac=cc ad=99 ae=66 af=1d b0=02 b1=53 b2=00
b3=7b b4=03 b6=50 b7=4b b8=39 b9=1e bc=cc bd=99 be=66 bf=1a c0=0f c1=7b c2=00
c3=a3 c4=03 c6=3c c7=32 c8=28 c9=1e cb=d9 cc=b2 cd=99 ce=80 cf=1f e0=00 e1=00
e2=00 e3=00 e4=00 e5=00 e6=00 e7=00 e8=00 ec=00 ed=00 ee=81 ef=00 f0=00 f1=00
f2=00 f3=00 f4=00 f5=00 f6=37 f7=45 f8=00 f9=00 fb=00 fc=26 fd=00 ff=00 words
00=ff08 01=0399 02=002d 03=0046 04=0050 05=ffc8 06=ff75 07=ff1e
iic0: addr 0x48 07=2e 0a=34 0b=ba 0d=4a 10=a2 11=20 13=41 14=40 15=02 16=02
17=02 18=7c 19=0e 1a=06 1b=f0 1c=1a 1d=08 20=88 21=88 22=c0 23=c0 24=73 25=04
26=60 27=02 28=ff 29=37 2a=0a 2b=83 2c=3e 2e=ff 2f=ff 30=ff 31=ff 32=27 33=f1
34=41 35=57 40=03 41=d8 42=01 43=91 44=f0 45=02 46=75 4a=16 87=2e 8a=34 8b=ba
8d=4a 90=a2 91=20 93=41 94=40 95=02 96=02 97=02 98=7c 99=0e 9a=06 9b=f0 9c=1a
9d=08 a0=88 a1=88 a2=c0 a3=c0 a4=73 a5=04 a6=60 a7=02 a8=ff a9=37 aa=0a ab=83
ac=3e ae=ff af=ff b0=ff b1=ff b2=27 b3=f1 b4=41 b5=57 c0=03 c1=d8 c2=01 c3=91
c4=f0 c5=02 c6=75 ca=16 words 00=00ff 01=00ff 02=00ff 03=00ff 04=00ff 05=00ff
06=00ff 07=2eff
spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT (using slow L1TF mitigation)
efifb at mainbus0 not configured
uhub1 at uhub0 port 4 configuration 1 interface 0 "Genesys Logic USB2.0 Hub"
rev 2.00/60.70 addr 2
uhidev0 at uhub1 port 1 configuration 1 interface 0 "vendor 0x13ba Generic USB
K/B" rev 1.10/0.01 addr 3
uhidev0: iclass 3/1
ukbd0 at uhidev0: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
uhidev1 at uhub1 port 1 configuration 1 interface 1 "vendor 0x13ba Generic USB
K/B" rev 1.10/0.01 addr 3
uhidev1: iclass 3/1, 2 report ids
ums0 at uhidev1 reportid 1: 3 buttons, Z dir
wsmouse0 at ums0 mux 0
uhid0 at uhidev1 reportid 2: input=1, output=0, feature=0
uhub2 at uhub0 port 5 configuration 1 interface 0 "Genesys Logic USB2.0 Hub"
rev 2.00/60.70 addr 4
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (f4577e081ef8a072.a) swap on sd0b dump on sd0b
inteldrm0: 1280x1024, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0
wskbd1: connecting to wsdisplay0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
Thanks,
Kastus
