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Date:      Sun, 23 Dec 2007 13:12:49 -0500
From:      Chuck Robey <chuckr@chuckr.org>
To:        =?UTF-8?B?RGFnLUVybGluZyBTbcO4cmdyYXY=?= <des@des.no>
Cc:        FreeBSD-Hackers <freebsd-hackers@freebsd.org>
Subject:   Re: printing boot probe messages
Message-ID:  <476EA521.9020707@chuckr.org>
In-Reply-To: <86abo1g2pu.fsf@ds4.des.no>
References:  <476AF132.4080304@chuckr.org> <86abo1g2pu.fsf@ds4.des.no>

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Dag-Erling Smørgrav wrote:
> Chuck Robey <chuckr@chuckr.org> writes:
>> I've lost the printing of all of th e messages you normally see, when you are
>> booting yoiur machine (you know, mostly probe messages.  I used to see them on
>> this box. When I made my first kernel, I had begun (obviously, as we all do)
>> with GENERIC as a base, but changing the first loaders.hints and the kernel,
>> that's the last I saw of booting messages.
> 
> You say something stopped working after you fiddled with some config
> files, but you don't show us those config files nor even tell us *which*
> config files you modified in terms that we can understand (there is no
> such thing as loader.hints).

Dag, I looked through all my older messages, I couldn't see where I'd given
you the misimpression about stuff stopping working when I made my first
kernel.  Teh target then was to maintain booting, which it did, and I don't
remember anything specific that stopped working.  The sound, for instance,
didn't work before, and also didn't immediately work thereafter.  The only
striking change, beyond jumping to current, was the uname print, and the
sudden jarring cessation of all the boot messages (that, I could hardly
have missed, it worried me more than a little at first, I though the
machine had hung during boot!)

Anyhow, I don't have that first config file.  I have the one I'm using now,
so in the assumption that you would like to see that, I'm going to paste it
at the end.  The only thing that I can comment on, so far, is that my
motherboard hasn't got any serial devices, no uarts, so I don't have any
ttyd0 device, and that's (I think) why it doesn't show up on any
conscontrol listing.  Is there a better device to have set up, as my
console output?  Note that my kernel config file has the sc (syscons,
right?) device, in case either I  have done that wrong, or maybe it might
mean I should spec some specific device to conscontrol.


#cpu            I486_CPU
#cpu            I586_CPU
cpu             I686_CPU
ident           APRIL

# To statically compile in device wiring instead of /boot/device.hints
hints           "APRIL.hints"           # Default places to look for devices.

makeoptions     DEBUG=-g                # Build kernel with gdb(1) debug
symbols

options         SCHED_ULE               # ULE scheduler
options         PREEMPTION              # Enable kernel thread preemption
options         INET                    # InterNETworking
options         INET6                   # IPv6 communications protocols
options         SCTP                    # Stream Control Transmission Protocol
options         FFS                     # Berkeley Fast Filesystem
options         SOFTUPDATES             # Enable FFS soft updates support
options         UFS_ACL                 # Support for access control lists
options         UFS_DIRHASH             # Improve performance on big
directories
options         UFS_GJOURNAL            # Enable gjournal-based UFS journaling
options         MD_ROOT                 # MD is a potential root device
options         NFSCLIENT               # Network Filesystem Client
options         NFSSERVER               # Network Filesystem Server
options         NFS_ROOT                # NFS usable as /, requires NFSCLIENT
options         MSDOSFS                 # MSDOS Filesystem
options         CD9660                  # ISO 9660 Filesystem
options         PROCFS                  # Process filesystem (requires
PSEUDOFS)
options         PSEUDOFS                # Pseudo-filesystem framework
options         GEOM_PART_GPT           # GUID Partition Tables.
options         GEOM_LABEL              # Provides labelization
options         COMPAT_43TTY            # BSD 4.3 TTY compat [KEEP THIS!]
options         COMPAT_FREEBSD4         # Compatible with FreeBSD4
options         COMPAT_FREEBSD5         # Compatible with FreeBSD5
options         COMPAT_FREEBSD6         # Compatible with FreeBSD6
options         SCSI_DELAY=5000         # Delay (in ms) before probing SCSI
options         KTRACE                  # ktrace(1) support
options         SYSVSHM                 # SYSV-style shared memory
options         SYSVMSG                 # SYSV-style message queues
options         SYSVSEM                 # SYSV-style semaphores
options         _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time
extensions
options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev
#options        ADAPTIVE_GIANT          # Giant mutex is adaptive.
options         STOP_NMI                # Stop CPUS using NMI instead of IPI
options         AUDIT                   # Security event auditing

# Debugging for use in -current
options         KDB                     # Enable kernel debugger support.
options         DDB                     # Support DDB.
options         GDB                     # Support remote GDB.
options         KSE
#options        INVARIANTS              # Enable calls of extra sanity checking
#options        INVARIANT_SUPPORT       # Extra sanity checks of internal
structures, required by INVARIANTS
#options        WITNESS                 # Enable checks to detect deadlocks
and cycles
#options        WITNESS_SKIPSPIN        # Don't run witness on spinlocks
for speed

# To make an SMP kernel, the next two lines are needed
options         SMP                     # Symmetric MultiProcessor Kernel
device          apic                    # I/O APIC

# CPU frequency control
device          cpufreq

# Bus support.
device          eisa
device          pci

# Floppy drives
device          fdc

# ATA and ATAPI devices
device          ata
device          atadisk         # ATA disk drives
device          ataraid         # ATA RAID drives
device          atapicd         # ATAPI CDROM drives
device          atapifd         # ATAPI floppy drives
device          atapist         # ATAPI tape drives
options         ATA_STATIC_ID   # Static device numbering

# SCSI Controllers

# SCSI peripherals
device          scbus           # SCSI bus (required for SCSI)
device          da              # Direct Access (disks)
#device         sa              # Sequential Access (tape etc)
device          cd              # CD
device          pass            # Passthrough device (direct SCSI access)
device          ses             # SCSI Environmental Services (and SAF-TE)

# RAID controllers interfaced to the SCSI subsystem
device          twa             # 3ware 9000 series PATA/SATA RAID

# RAID controllers
device          twe             # 3ware ATA RAID

# atkbdc0 controls both the keyboard and the PS/2 mouse
device          atkbdc          # AT keyboard controller
device          atkbd           # AT keyboard
device          psm             # PS/2 mouse

device          kbdmux          # keyboard multiplexer

device          vga             # VGA video card driver

#device         splash          # Splash screen and screen saver support

# syscons is the default console driver, resembling an SCO console
device          sc
options MAXCONS=8
options SC_HISTORY_SIZE=256

device          agp             # support several AGP chipsets

# Power management support (see NOTES for more options)
#device         apm
# Add suspend/resume support for the i8254.
device          pmtimer

# PCCARD (PCMCIA) support
# PCMCIA and cardbus bridge support
#device         cbb             # cardbus (yenta) bridge
device          pccard          # PC Card (16-bit) bus
device          cardbus         # CardBus (32-bit) bus

# Serial (COM) ports
device          sio             # 8250, 16[45]50 based serial ports
device          uart            # Generic UART driver

# Parallel port
device          ppc
device          ppbus           # Parallel port bus (required)
device          lpt             # Printer
device          plip            # TCP/IP over parallel
device          ppi             # Parallel port interface device
#device         vpo             # Requires scbus and da

# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to sio, uart and/or ppc drivers):
#device         puc

# PCI Ethernet NICs.
device          le              # AMD Am7900 LANCE and Am79C9xx PCnet

# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device          miibus          # MII bus support
device          dc              # DEC/Intel 21143 and various workalikes
device          nfe             # nVidia nForce MCP on-board Ethernet
device          nve             # nVidia nForce MCP on-board Ethernet
Networking
device          pcn             # AMD Am79C97x PCI 10/100 (precedence over
'le')
device          sis             # Silicon Integrated Systems SiS 900/SiS 7016

# ISA Ethernet NICs.  pccard NICs included.
device          cs              # Crystal Semiconductor CS89x0 NIC

# Wireless NIC cards
device          wlan            # 802.11 support
device          wlan_wep        # 802.11 WEP support
device          wlan_ccmp       # 802.11 CCMP support
device          wlan_tkip       # 802.11 TKIP support
device          wlan_amrr       # AMRR transmit rate control algorithm
device          wlan_scan_ap    # 802.11 AP mode scanning
device          wlan_scan_sta   # 802.11 STA mode scanning

# Pseudo devices.
device          loop            # Network loopback
device          random          # Entropy device
device          ether           # Ethernet support
device          tun             # Packet tunnel.
device          pty             # Pseudo-ttys (telnet etc)
device          md              # Memory "disks"
device          gif             # IPv6 and IPv4 tunneling
device          faith           # IPv6-to-IPv4 relaying (translation)
device          firmware        # firmware assist module

# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device          bpf             # Berkeley packet filter

# USB support
device          uhci            # UHCI PCI->USB interface
device          ohci            # OHCI PCI->USB interface
device          ehci            # EHCI PCI->USB interface (USB 2.0)
device          usb             # USB Bus (required)
#device         udbp            # USB Double Bulk Pipe devices
device          ugen            # Generic
device          uhid            # "Human Interface Devices"
device          ukbd            # Keyboard
device          ulpt            # Printer
device          umass           # Disks/Mass storage - Requires scbus and da
device          ums             # Mouse
device          ural            # Ralink Technology RT2500USB wireless NICs
device          rum             # Ralink Technology RT2501USB wireless NICs
device          uscanner        # Scanners
# USB Ethernet, requires miibus
device          aue             # ADMtek USB Ethernet
device          axe             # ASIX Electronics USB Ethernet
device          cdce            # Generic USB over Ethernet
#device         cue             # CATC USB Ethernet
#device         kue             # Kawasaki LSI USB Ethernet
device          rue             # RealTek RTL8150 USB Ethernet

# FireWire support
device          firewire        # FireWire bus code
device          sbp             # SCSI over FireWire (Requires scbus and da)
device          fwe             # Ethernet over FireWire (non-standard!)
device          fwip            # IP over FireWire (RFC 2734,3146)
device          dcons           # Dumb console driver
device          dcons_crom      # Configuration ROM for dcons
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