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Date:      16 Apr 2002 08:22:13 -0600
From:      Srinivasan Rajagopal Iyengar <sanatanadharma@attbi.com>
To:        freebsd-questions@FreeBSD.ORG
Subject:   cdrom mount problems with custom kernel
Message-ID:  <1018966934.300.10.camel@Bhadrachalam.attbi.com>

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Hi,
I am running 4.5-Stable with a custom built kernel. I get the following
message when I try to mount the cdrom.

Bhadrachalam# mount /cdrom
cd9660: /dev/acd0c: Device not configured

I have tried other mount commands, but it seems that for some reason the
kernel does not see the cdrom device "/dev/acd0c".

I am able to mount the cdrom if I boot to the generic kernel (but it has
no support for sound).

However, if I just compile the generic kernel without any changes, to a
new kernel name, it again does not see the cdrom. I suspect there is
some problem in the kernel compilation process.

If anyone has seen this problem or knows a work-around, I would
appreciate the help.

Here is the output of dmesg and below is my custom kernel file.

Many thanks,
Srini.

_________________________________________________________________________
ad0: 19541MB <Maxtor 5T020H2> [39704/16/63] at ata0-master UDMA100
ad1: 43979MB <IBM-DTLA-307045> [89355/16/63] at ata0-slave UDMA100
acd0: CD-RW <_NEC NR-7700A> at ata1-master PIO4
Waiting 5 seconds for SCSI devices to settle
Mounting root from ufs:/dev/ad0s1a
----------------------------------------------------------------------------
machine         i386
cpu             I686_CPU
ident           BHADRACHALAM
maxusers        32

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

options         MATH_EMULATE            #Support for x87 emulation
options         INET                    #InterNETworking
options         INET6                   #IPv6 communications protocols
options         FFS                     #Berkeley Fast Filesystem
options         FFS_ROOT                #FFS usable as root device [keep
this!]
options         SOFTUPDATES             #Enable FFS soft updates support
options         UFS_DIRHASH             #Improve performance on big
directories
options         EXT2FS                  #Linux EXT2 Filesystem
options         MFS                     #Memory Filesystem
options         MD_ROOT                 #MD is a potential root device
options         NFS                     #Network Filesystem
options         NFS_ROOT                #NFS usable as root device, NFS
required
options         MSDOSFS                 #MSDOS Filesystem
options         CD9660                  #ISO 9660 Filesystem
options         CD9660_ROOT             #CD-ROM usable as root, CD9660
required
options         PROCFS                  #Process filesystem
options         COMPAT_43               #Compatible with BSD 4.3 [KEEP
THIS!]
options         SCSI_DELAY=5000         #Delay (in ms) before probing
SCSI
options         UCONSOLE                #Allow users to grab the console
options         USERCONFIG              #boot -c editor
options         VISUAL_USERCONFIG       #visual boot -c editor
options         KTRACE                  #ktrace(1) support
options         SYSVSHM                 #SYSV-style shared memory
options         SYSVMSG                 #SYSV-style message queues
options         SYSVSEM                 #SYSV-style semaphores
options         P1003_1B                #Posix P1003_1B real-time
extensions
options         _KPOSIX_PRIORITY_SCHEDULING
options         ICMP_BANDLIM            #Rate limit bad replies
options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev
options         USER_LDT                # For xmovie player
# options       PNPBIOS                 # For builtin Motherboard sound
devices

device          isa
device          eisa
device          pci

# Floppy drives
device          fdc0    at isa? port IO_FD1 irq 6 drq 2
device          fd0     at fdc0 drive 0

# ATA and ATAPI devices
device          ata0    at isa? port IO_WD1 irq 14
device          ata1    at isa? port IO_WD2 irq 15
device          ata
device          atadisk                 # ATA disk drives
device          atapicd                 # ATAPI CDROM drives
device          atapifd                 # ATAPI floppy drives
options         ATA_STATIC_ID           #Static device numbering

# SCSI Controllers
device          ahc             # AHA2940 and onboard AIC7xxx devices

# SCSI peripherals
device          scbus           # SCSI bus (required)
device          sa              # Sequential Access (tape etc)

# atkbdc0 controls both the keyboard and the PS/2 mouse
device          atkbdc0 at isa? port IO_KBD
device          atkbd0  at atkbdc? irq 1 flags 0x1
device          psm0    at atkbdc? irq 12

device          vga0    at isa?

# splash screen/screen saver
pseudo-device   splash

# syscons is the default console driver, resembling an SCO console
device          sc0     at isa? flags 0x100

# Floating point support - do not disable.
device          npx0    at nexus? port IO_NPX irq 13

# Power management support (see LINT for more options)
device          apm0    at nexus? disable flags 0x20 # Advanced Power
Management

# Serial (COM) ports
device          sio0    at isa? port IO_COM1 flags 0x10 irq 4
device          sio1    at isa? port IO_COM2 irq 3
device          sio2    at isa? disable port IO_COM3 irq 5
device          sio3    at isa? disable port IO_COM4 irq 9
# Parallel port
device          ppc0    at isa? irq 7
device          ppbus           # Parallel port bus (required)
device          lpt             # Printer
device          plip            # TCP/IP over parallel
device          ppi             # Parallel port interface device

# 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          rl              # RealTek 8129/8139

# Pseudo devices - the number indicates how many units to allocate.
pseudo-device   loop            # Network loopback
pseudo-device   ether           # Ethernet support
pseudo-device   sl      1       # Kernel SLIP
pseudo-device   ppp     1       # Kernel PPP
pseudo-device   tun             # Packet tunnel.
pseudo-device   pty             # Pseudo-ttys (telnet etc)
pseudo-device   md              # Memory "disks"
pseudo-device   gif     4       # IPv6 and IPv4 tunneling
pseudo-device   faith   1       # IPv6-to-IPv4 relaying (translation)

# The `bpf' pseudo-device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
pseudo-device   bpf             #Berkeley packet filter

# USB support
device          uhci            # UHCI PCI->USB interface
device          ohci            # OHCI PCI->USB interface
device          usb             # USB Bus (required)
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          uscanner        # Scanners
#
# For PnP/PCI sound cards
device          pcm
device          pcm0 at isa? irq 10 drq 1 flags 0x0

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