SMALLRAM revision 1.12
1# $NetBSD: SMALLRAM,v 1.12 2005/01/17 15:28:52 cube Exp $ 2# 3# This is an example of how to configure a small, efficient kernel for a 4# system with limited RAM. Even so it's capable of doing quite a bit. The 5# hypothetical system used for this example is a Macintosh IIx or 6# Macintosh IIcx with 8 MB of RAM and an 80 MB disk. One or more DP5380- 7# based NuBus Ethernet cards and one or more NuBus video cards are 8# configured, and basic PPP support is available. This configuration is 9# suitable for experimenting with NetBSD as a router with one or more 10# Ethernet cards, and up to two PPP connections (one on each serial port). 11 12include "arch/mac68k/conf/std.mac68k" 13 14#options INCLUDE_CONFIG_FILE # embed config file in kernel binary 15 16#ident "SMALLRAM-$Revision: 1.12 $" 17 18maxusers 8 19 20makeoptions COPTS="-O2 -m68030" # Optimize for the MC68030 21 22# CPU support. At least one is REQUIRED. 23#options M68040 24options M68030 25#options M68020 # Note: must have 68851 PMMU 26 27# CPU-related options. 28#options FPSP 29#options FPU_EMULATE 30 31# Standard system options 32 33#options INSECURE # disable kernel security levels 34 35options RTC_OFFSET=0 # hardware clock is this many mins. west of GMT 36#options NTP # NTP phase/frequency locked loop 37 38options KTRACE # system call tracing via ktrace(1) 39 40options SYSVMSG # System V-like message queues 41options SYSVSEM # System V-like semaphores 42#options SEMMNI=10 # number of semaphore identifiers 43#options SEMMNS=60 # number of semaphores in system 44#options SEMUME=10 # max number of undo entries per process 45#options SEMMNU=30 # number of undo structures in system 46options SYSVSHM # System V-like memory sharing 47#options SHMMAXPGS=1024 # 1024 pages is the default 48 49#options LKM # loadable kernel modules 50 51options USERCONF # userconf(4) support 52#options PIPE_SOCKETPAIR # smaller, but slower pipe(2) 53#options SYSCTL_INCLUDE_DESCR # Include sysctl descriptions in kernel 54 55# Diagnostic/debugging support options 56options DIAGNOSTIC # cheap kernel consistency checks 57#options DEBUG # expensive debugging checks/support 58#options KMEMSTATS # kernel memory statistics (vmstat -m) 59options DDB # in-kernel debugger 60#options DDB_HISTORY_SIZE=100 # enable history editing in DDB 61#options KGDB # remote debugger 62#options KGDB_DEV=0xc01 # kgdb device number (dev_t) 63#options KGDB_DEVRATE=38400 # baud rate 64#makeoptions DEBUG="-g" # compile full symbol table 65 66# Compatibility options 67#options COMPAT_NOMID # NetBSD 0.8, 68#options COMPAT_09 # NetBSD 0.9, 69#options COMPAT_10 # NetBSD 1.0, 70#options COMPAT_11 # NetBSD 1.1, 71options COMPAT_12 # NetBSD 1.2, 72options COMPAT_13 # NetBSD 1.3, 73options COMPAT_14 # NetBSD 1.4, 74options COMPAT_15 # NetBSD 1.5, 75options COMPAT_16 # NetBSD 1.6, 76#options COMPAT_43 # and 4.3BSD 77#options TCP_COMPAT_42 # 4.2BSD TCP/IP bug compat. Not recommended. 78 79# The following is needed to run pre-NetBSD 1.6 binaries under ELF. 80options COMPAT_AOUT_M68K # compatibility with NetBSD/m68k a.out 81options EXEC_AOUT # support for exec'ing a.out 82 83#options COMPAT_LINUX # compatibility with Linux/m68k binaries 84#options COMPAT_M68K4K # compatibility with NetBSD/m68k4k binaries 85#options COMPAT_SUNOS # compatibility with SunOS 4.x binaries 86#options COMPAT_SVR4 # compatibility with SVR4 binaries 87options COMPAT_BSDPTY # /dev/[pt]ty?? ptys. 88 89# File systems 90file-system FFS # UFS 91#file-system EXT2FS # second extended file system (linux) 92#file-system LFS # log-structured file system 93file-system MFS # memory file system 94file-system NFS # Network File System client 95#file-system CD9660 # ISO 9660 + Rock Ridge file system 96#file-system MSDOSFS # MS-DOS file system 97#file-system FDESC # /dev/fd 98#file-system KERNFS # /kern 99#file-system NULLFS # loopback file system 100#file-system OVERLAY # overlay file system 101#file-system PORTAL # portal filesystem (still experimental) 102#file-system PROCFS # /proc 103#file-system UMAPFS # NULLFS + uid and gid remapping 104#file-system UNION # union file system 105#file-system CODA # Venus/Coda distributed file system 106 107# File system options 108options QUOTA # UFS quotas 109#options FFS_EI # FFS Endian Independant support 110#options SOFTDEP # FFS soft updates support. 111#options NFSSERVER # Network File System server 112#options EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and 113 # immutable) behave as system flags. 114 115# Networking options 116options GATEWAY # packet forwarding 117options INET # IP + ICMP + TCP + UDP 118#options INET6 # IPV6 119#options IPSEC # IP security 120#options IPSEC_ESP # IP security (encryption part; define w/IPSEC) 121#options IPSEC_DEBUG # debug for IP security 122options MROUTING # IP multicast routing 123options PIM # Protocol Independent Multicast 124#options NS # XNS 125#options NSIP # XNS tunneling over IP 126#options ISO,TPIP # OSI 127#options EON # OSI tunneling over IP 128#options CCITT,LLC,HDLC # X.25 129#options NETATALK # AppleTalk networking protocols 130options PPP_BSDCOMP # BSD-Compress compression support for PPP 131#options PPP_DEFLATE # Deflate compression support for PPP 132options PPP_FILTER # Active filter support for PPP (requires bpf) 133options PFIL_HOOKS # pfil(9) packet filter hooks 134#options IPFILTER_LOG # ipmon(8) log support 135#options IPFILTER_DEFAULT_BLOCK # block all packets by default 136#options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG 137 138# These options enable verbose messages for several subsystems. 139# Warning, these may compile large string tables into the kernel! 140#options SCSIVERBOSE # human readable SCSI error messages 141 142# wscons options 143#options WSEMUL_SUN # sun terminal emulation 144options WSEMUL_VT100 # VT100 / VT220 emulation 145options WSDISPLAY_COMPAT_ITEFONT # use ite font (6x10) 146 147# rcons options; note that 1-bit and 8-bit displays are supported by default. 148#options RCONS_2BPP # Support for 2-bit display 149#options RCONS_4BPP # Support for 4-bit display 150#options RCONS_16BPP # Support for 16-bit display 151 152# Mac-specific options 153#options ALTXBUTTONS # Map Opt-{1,2,3} to mouse buttons 154#options DISABLE_EXT_CACHE # Don't use IIci external cache 155options GRF_COMPAT # Include grf compatibility code 156#options MRG_ADB # Use ROM-based ADB driver 157#options ZS_CONSOLE_ABORT 158 159 160# Kernel root file system and dump configuration. 161config netbsd root on ? type ? 162 163# 164# Device configuration 165# 166 167mainbus0 at root 168 169fpu0 at mainbus? # Floating-Point Coprocessor support 170 171 172# Basic Bus Support 173 174# On-board I/O bus support 175obio0 at mainbus? 176 177# NuBus support 178nubus0 at mainbus? 179 180 181# Console Devices 182 183# Apple Desktop Bus interface 184adb0 at obio? 185aed* at adb? # ADB event device 186akbd* at adb? # ADB keyboard 187ams* at adb? # ADB mouse 188 189# Basic frame buffer support 190#intvid0 at obio? # Internal video hardware 191macvid* at nubus? # NuBus video card 192 193# Device-independent frame buffer interface 194#macfb* at intvid? 195macfb* at macvid? 196 197# Workstation Console devices 198wsdisplay0 at macfb? console ? 199wskbd0 at akbd? console ? 200wsmouse0 at ams? 201 202 203# Serial Devices 204 205# On-board serial interface 206zsc0 at obio? 207zstty* at zsc? channel ? 208 209 210# SCSI Controllers and Devices 211 212# SCSI controllers 213# XXX - use only one of ncrscsi or sbc 214#ncrscsi0 at obio? # SCSI NCR 5380 215sbc0 at obio? flags 0x1 # MI SCSI NCR 5380 216#esp0 at obio? # SCSI NCR 53C9x 217#esp1 at obio? # SCSI NCR 53C9x 218 219# SCSI bus support 220scsibus* at scsi? 221 222# SCSI devices 223sd* at scsibus? target ? lun ? # SCSI disk drives 224#st* at scsibus? target ? lun ? # SCSI tape drives 225#cd* at scsibus? target ? lun ? # SCSI CD-ROM drives 226#ch* at scsibus? target ? lun ? # SCSI autochangers 227#se* at scsibus? target ? lun ? # SCSI ethernet 228#ss* at scsibus? target ? lun ? # SCSI scanners 229#uk* at scsibus? target ? lun ? # SCSI unknown 230 231# IDE controller and devices 232#wdc* at obio? flags 0x1000 233#wd* at wdc? channel ? drive ? 234 235 236# Miscellaneous mass storage devices 237 238# IWM floppy disk controller 239#iwm0 at obio? # Sony driver (800K GCR) 240#fd* at iwm? drive ? 241 242 243# Network Interfaces 244 245# On-board Ethernet controllers 246#sn* at obio? # SONIC-based (DP83932, DP83916) 247#mc* at obio? # MACE-based 248 249# NuBus Ethernet controllers 250ae* at nubus? # DP8390-based 251#sn* at nubus? # SONIC-based (DP83932, DP83916) 252#sm* at nubus? # SMC 91cxx-based 253 254#nsphy* at mii? phy ? 255#ukphy* at mii? phy ? 256 257# Audio Devices 258 259# On-board audio hardware 260asc0 at obio? # ASC/EASC audio 261 262# Pseudo-Devices 263 264# disk/mass storage pseudo-devices 265pseudo-device ccd 4 # concatenated/striped disk devices 266#pseudo-device raid 8 # RAIDframe disk driver 267#options RAID_AUTOCONFIG # auto-configuration of RAID components 268# Options to enable various other RAIDframe RAID types. 269# options RF_INCLUDE_EVENODD=1 270# options RF_INCLUDE_RAID5_RS=1 271# options RF_INCLUDE_PARITYLOGGING=1 272# options RF_INCLUDE_CHAINDECLUSTER=1 273# options RF_INCLUDE_INTERDECLUSTER=1 274# options RF_INCLUDE_PARITY_DECLUSTERING=1 275# options RF_INCLUDE_PARITY_DECLUSTERING_DS=1 276#pseudo-device md 1 # memory disk device (ramdisk) 277#pseudo-device vcoda 1 # Venus/Coda distributed file system 278pseudo-device vnd 4 # disk-like interface to files 279 280# network pseudo-devices 281pseudo-device bpfilter 12 # Berkeley packet filter 282pseudo-device ipfilter # IP filter (firewall) and NAT 283pseudo-device loop # network loopback 284pseudo-device ppp 2 # Point-to-Point Protocol 285#pseudo-device pppoe # PPP over Ethernet (RFC 2516) 286#pseudo-device sl 2 # Serial Line IP 287#pseudo-device strip 2 # Starmode Radio IP (Metricom) 288pseudo-device tun 2 # network tunneling over tty 289#pseudo-device tap # virtual Ethernet 290#pseudo-device gre 2 # generic L3 over IP tunnel 291#pseudo-device gif 4 # IPv[46] over IPv[46] tunnel (RFC1933) 292#pseudo-device faith 1 # IPv[46] tcp relay translation i/f 293#pseudo-device stf 1 # 6to4 IPv6 over IPv4 encapsulation 294#pseudo-device vlan # IEEE 802.1q encapsulation 295#pseudo-device bridge # simple inter-network bridging 296 297# miscellaneous pseudo-devices 298pseudo-device grf 2 # grf emulation for wscons 299pseudo-device ite 1 # ite emulation for wscons 300pseudo-device pty # pseudo-terminals 301#pseudo-device tb 1 # tablet line discipline 302pseudo-device clockctl # user control of clock subsystem 303 304# rnd is EXPERIMENTAL at this point. 305#pseudo-device rnd # /dev/random and in-kernel generator 306#options RND_COM # use "com" randomness as well (BROKEN) 307