> > If you could send me your tips for building tftpboot images and stuff, > it'd save me some time. The userspace stuff I have is built with buildroot. I used the attached configuration. When building the kernel I use: ROOTFS=/path/to/buildroot.git/output/images/rootfs.ext2 make ROOT_IMG=${ROOTFS} ARCH=sparc tftpboot.img I then copy the final tftpboot.img to /var/lib/tftpboot/ as C0A800C8.SUN4M - this is the filename my sun4m box ask for. I used tcpdump to check the name it requested. I have rarp so my /etc/ethers define the relation between mac and IP like this: 08:00:20:05:38:d2 192.168.0.200 Initially my rarpd did not work. I had to add following options: # Do not check /tftpbootdir before response OPTIONS="-v -e" Until I realized this I uses prom> boot net gateway-ip,,sun-ip But it is much more convinient with rarp as I can then type "boot net". And this is also default so I just turn on the box to boot it. Sam
# # Automatically generated make config: don't edit # Buildroot version: 2011.02-git-00192-g6527001 # Thu Dec 30 23:36:52 2010 # BR2_HAVE_DOT_CONFIG=y # BR2_arm is not set # BR2_armeb is not set # BR2_avr32 is not set # BR2_i386 is not set # BR2_mips is not set # BR2_mipsel is not set # BR2_powerpc is not set # BR2_sh is not set # BR2_sh64 is not set BR2_sparc=y # BR2_x86_64 is not set # BR2_xtensa is not set # BR2_sparc_v7 is not set # BR2_sparc_cypress is not set BR2_sparc_v8=y # # LEON SPARC needs gcc = 4.4.x # # BR2_sparc_sparchfleon is not set # BR2_sparc_sparchfleonv8 is not set # BR2_sparc_sparcsfleon is not set # BR2_sparc_sparcsfleonv8 is not set # BR2_sparc_supersparc is not set # BR2_sparc_sparclite is not set # BR2_sparc_f930 is not set # BR2_sparc_f934 is not set # BR2_sparc_hypersparc is not set # BR2_sparc_sparclite86x is not set # BR2_sparc_sparclet is not set # BR2_sparc_tsc701 is not set BR2_SPARC_TYPE="V8" BR2_ARCH="sparc" BR2_ENDIAN="BIG" BR2_GCC_TARGET_TUNE="v8" # # Build options # # # Commands # BR2_WGET="wget --passive-ftp -nd" BR2_SVN="svn" BR2_BZR="bzr" BR2_GIT="git clone" BR2_ZCAT="gzip -d -c" BR2_BZCAT="bzcat" BR2_TAR_OPTIONS="" BR2_DL_DIR="$(TOPDIR)/dl" BR2_STAGING_DIR="$(BASE_DIR)/staging" # # Mirrors and Download locations # BR2_PRIMARY_SITE="" BR2_BACKUP_SITE="http://sources.buildroot.net/" BR2_SOURCEFORGE_MIRROR="easynews" BR2_KERNEL_MIRROR="http://www.kernel.org/pub/" BR2_GNU_MIRROR="http://ftp.gnu.org/pub/gnu" BR2_DEBIAN_MIRROR="http://ftp.debian.org" BR2_JLEVEL=2 # BR2_CCACHE is not set # BR2_DEPRECATED is not set # BR2_ENABLE_DEBUG is not set BR2_STRIP_strip=y # BR2_STRIP_sstrip is not set # BR2_STRIP_none is not set # BR2_OPTIMIZE_0 is not set # BR2_OPTIMIZE_1 is not set # BR2_OPTIMIZE_2 is not set # BR2_OPTIMIZE_3 is not set BR2_OPTIMIZE_S=y # BR2_PREFER_STATIC_LIB is not set # BR2_HAVE_DOCUMENTATION is not set # BR2_HAVE_DEVFILES is not set # # Toolchain # BR2_TOOLCHAIN_BUILDROOT=y # BR2_TOOLCHAIN_EXTERNAL is not set # BR2_TOOLCHAIN_CTNG is not set # # Kernel Header Options # # BR2_KERNEL_HEADERS_2_6_34 is not set # BR2_KERNEL_HEADERS_2_6_35 is not set BR2_KERNEL_HEADERS_2_6_36=y # BR2_KERNEL_HEADERS_VERSION is not set # BR2_KERNEL_HEADERS_SNAP is not set BR2_DEFAULT_KERNEL_HEADERS="2.6.36.2" # # uClibc Options # # BR2_UCLIBC_VERSION_0_9_30 is not set BR2_UCLIBC_VERSION_0_9_31=y # BR2_UCLIBC_VERSION_0_9_32 is not set # BR2_UCLIBC_VERSION_SNAPSHOT is not set BR2_UCLIBC_VERSION_STRING="0.9.31" BR2_UCLIBC_CONFIG="toolchain/uClibc/uClibc-0.9.31.config" # BR2_PTHREAD_DEBUG is not set # BR2_UCLIBC_INSTALL_TEST_SUITE is not set # # Binutils Options # # BR2_BINUTILS_VERSION_2_20 is not set BR2_BINUTILS_VERSION_2_20_1=y BR2_BINUTILS_VERSION="2.20.1" BR2_EXTRA_BINUTILS_CONFIG_OPTIONS="" # # GCC Options # # BR2_GCC_VERSION_4_2_4 is not set # BR2_GCC_VERSION_4_3_X is not set # BR2_GCC_VERSION_4_4_X is not set BR2_GCC_VERSION_4_5_X=y # BR2_GCC_VERSION_SNAP is not set BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y BR2_GCC_VERSION="4.5.2" BR2_EXTRA_GCC_CONFIG_OPTIONS="" # BR2_GCC_CROSS_OBJC is not set # BR2_GCC_CROSS_FORTRAN is not set # BR2_INSTALL_OBJC is not set # BR2_INSTALL_FORTRAN is not set # # Gdb Options # # # Gdb debugger for the target needs WCHAR support in toolchain # # BR2_PACKAGE_GDB_SERVER is not set # BR2_PACKAGE_GDB_HOST is not set BR2_TOOLCHAIN_HAS_THREADS=y # BR2_ENABLE_LOCALE_PURGE is not set BR2_NEEDS_GETTEXT=y BR2_TARGET_OPTIMIZATION="-pipe" # # Toolchain Options # # BR2_TOOLCHAIN_BUILDROOT_LARGEFILE is not set # BR2_TOOLCHAIN_BUILDROOT_INET_IPV6 is not set # BR2_TOOLCHAIN_BUILDROOT_INET_RPC is not set # BR2_TOOLCHAIN_BUILDROOT_WCHAR is not set # BR2_TOOLCHAIN_BUILDROOT_LOCALE is not set # BR2_TOOLCHAIN_BUILDROOT_PROGRAM_INVOCATION is not set # BR2_TOOLCHAIN_BUILDROOT_CXX is not set # BR2_TOOLCHAIN_BUILDROOT_USE_SSP is not set # BR2_PTHREADS_NONE is not set # BR2_PTHREADS is not set BR2_PTHREADS_OLD=y # BR2_ELF2FLT is not set # BR2_MKLIBS is not set # BR2_PACKAGE_SSTRIP_TARGET is not set # BR2_PACKAGE_SSTRIP_HOST is not set BR2_CROSS_TOOLCHAIN_TARGET_UTILS=y # # System configuration # BR2_TARGET_GENERIC_HOSTNAME="buildroot" BR2_TARGET_GENERIC_ISSUE="Welcome to Buildroot" # BR2_TARGET_GENERIC_GETTY is not set # # Package Selection for the target # BR2_PACKAGE_BUSYBOX=y # BR2_BUSYBOX_VERSION_1_16_X is not set # BR2_BUSYBOX_VERSION_1_17_X is not set BR2_BUSYBOX_VERSION_1_18_X=y # BR2_PACKAGE_BUSYBOX_SNAPSHOT is not set BR2_BUSYBOX_VERSION="1.18.1" BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox-1.17.x.config" # BR2_PACKAGE_BUSYBOX_SHOW_OTHERS is not set # BR2_PACKAGE_CUSTOMIZE is not set # # Audio and video libraries and applications # # BR2_PACKAGE_ALSA_LIB is not set # # alsa-utils requires a toolchain with LARGEFILE support # # BR2_PACKAGE_AUMIX is not set # BR2_PACKAGE_FLAC is not set # # ffmpeg requires a toolchain with LARGEFILE support # # # gstreamer requires a toolchain with WCHAR support # # # gst-ffmpeg requires a toolchain with LARGEFILE support # # BR2_PACKAGE_LIBCDAUDIO is not set # # libdvdread requires a toolchain with LARGEFILE support # # # libdvdnav requires a toolchain with LARGEFILE support # # BR2_PACKAGE_LIBID3TAG is not set # BR2_PACKAGE_LIBMAD is not set # # libmms requires a toolchain with WCHAR support # # # libmpd requires a toolchain with WCHAR support # # BR2_PACKAGE_LIBMPEG2 is not set # BR2_PACKAGE_LIBOGG is not set # BR2_PACKAGE_LIBSNDFILE is not set # BR2_PACKAGE_LIBTHEORA is not set # BR2_PACKAGE_LIBVORBIS is not set # BR2_PACKAGE_MADPLAY is not set # BR2_PACKAGE_MPG123 is not set # BR2_PACKAGE_MPLAYER is not set # BR2_PACKAGE_SPEEX is not set # # swfdec requires a toolchain with WCHAR and C++ support # # # festival requires a toolchain with C++ support enabled # # # taglib requires a toolchain with C++ support enabled # # BR2_PACKAGE_TREMOR is not set # # Compressors and decompressors # # BR2_PACKAGE_LZOP is not set # BR2_PACKAGE_XZ is not set # # Debugging, profiling and benchmark # # BR2_PACKAGE_DHRYSTONE is not set # BR2_PACKAGE_DMALLOC is not set # BR2_PACKAGE_KEXEC is not set # # lmbench requires a toolchain with RPC support # # # lsof requires a toolchain with RPC support # # BR2_PACKAGE_LTP_TESTSUITE is not set # BR2_PACKAGE_LTRACE is not set # BR2_PACKAGE_MEMSTAT is not set # BR2_PACKAGE_NETPERF is not set # # oprofile requires a toolchain with C++ support enabled # # BR2_PACKAGE_STRACE is not set # BR2_PACKAGE_WHETSTONE is not set # # Development tools # # BR2_PACKAGE_AUTOCONF is not set # BR2_PACKAGE_AUTOMAKE is not set # # bison requires a toolchain with WCHAR support # # BR2_PACKAGE_BSDIFF is not set # BR2_PACKAGE_CCACHE is not set # BR2_PACKAGE_DISTCC is not set # BR2_PACKAGE_FAKEROOT is not set # BR2_PACKAGE_FLEX is not set # # native toolchain needs development files in target filesystem # # # gettext requires a toolchain with WCHAR support # # BR2_PACKAGE_GMP is not set # # gperf requires a toolchain with C++ support enabled # # BR2_PACKAGE_MAKE is not set # BR2_PACKAGE_MPC is not set # BR2_PACKAGE_MPFR is not set # BR2_PACKAGE_LIBTOOL is not set # # m4 requires a toolchain with WCHAR support # # # pkg-config requires a toolchain with WCHAR support # # # Games # # BR2_PACKAGE_GNUCHESS is not set # BR2_PACKAGE_PRBOOM is not set # # Graphic libraries and applications (graphic/text) # # # Graphic applications # # # rrdtool requires a toolchain with WCHAR support # # # graphic libraries # # BR2_PACKAGE_DIRECTFB is not set # BR2_PACKAGE_FBDUMP is not set # BR2_PACKAGE_FBGRAB is not set # BR2_PACKAGE_FBV is not set # BR2_PACKAGE_IMAGEMAGICK is not set # BR2_PACKAGE_LINUX_FUSION is not set # BR2_PACKAGE_SDL is not set # # other GUIs # # # qt requires a toolchain with C++ support enabled # # # X.org requires a toolchain with WCHAR support # # # X libraries and helper libraries # # BR2_PACKAGE_LIBERATION is not set # # X Window managers # # # X applications # # # gob2 requires a toolchain with WCHAR support # # # midori requires C++, WCHAR in toolchain and libgtk2 # # # Hardware handling # # # cdrkit requires a toolchain with LARGEFILE support # # BR2_PACKAGE_CRAMFS is not set # # dbus not available (need expat or libxml2) # # # dmraid requires a toolchain with LARGEFILE support # # # dosfstools requires a toolchain with LARGEFILE support # # # e2fsprogs requires a toolchain with LARGEFILE support # # BR2_PACKAGE_EEPROG is not set # BR2_PACKAGE_FCONFIG is not set # BR2_PACKAGE_FIS is not set # BR2_PACKAGE_GADGETFS_TEST is not set # BR2_PACKAGE_GENEXT2FS is not set # BR2_PACKAGE_GENROMFS is not set # BR2_PACKAGE_GPSD is not set # # gvfs requires a toolchain with LARGEFILE and WCHAR support # # # hal requires a toolchain with WCHAR support # # BR2_PACKAGE_HWDATA is not set # BR2_PACKAGE_I2C_TOOLS is not set # BR2_PACKAGE_INPUT_TOOLS is not set # BR2_PACKAGE_IOSTAT is not set # BR2_PACKAGE_KBD is not set # BR2_PACKAGE_LM_SENSORS is not set # BR2_PACKAGE_LSUIO is not set # # lvm2 requires a toolchain with LARGEFILE support # # BR2_PACKAGE_MAKEDEVS is not set # BR2_PACKAGE_MDADM is not set # # memtester requires a toolchain with LARGEFILE support # # BR2_PACKAGE_MTD is not set # # ntfs-3g requires a toolchain with LARGEFILE and WCHAR support # # # ntfsprogs requires a toolchain with WCHAR and LARGEFILE support # # BR2_PACKAGE_PCIUTILS is not set # BR2_PACKAGE_RNG_TOOLS is not set # BR2_PACKAGE_SETSERIAL is not set # BR2_PACKAGE_SMARTMONTOOLS is not set # # squashfs requires a toolchain with LARGEFILE support # # # sshfs requires a toolchain with LARGEFILE and WCHAR support # # BR2_PACKAGE_SYSSTAT is not set # BR2_PACKAGE_UDEV is not set # BR2_PACKAGE_USB_MODESWITCH is not set # BR2_PACKAGE_USBMOUNT is not set # # usbutils requires a toolchain with PROGRAM_INVOCATION support # # BR2_PACKAGE_WIPE is not set # # xfsprogs requires a toolchain with LARGEFILE support # # # Interpreter languages and scripting # # BR2_PACKAGE_HASERL is not set # BR2_PACKAGE_LUA is not set # BR2_PACKAGE_MICROPERL is not set # BR2_PACKAGE_PHP is not set # # python requires a toolchain with WCHAR support # # # ruby requires a toolchain with WCHAR support # # BR2_PACKAGE_TCL is not set # # Libraries # # # Compression and decompression # # # libarchive requires a toolchain with WCHAR support # # BR2_PACKAGE_LZO is not set BR2_PACKAGE_ZLIB=y # # Crypto # # BR2_PACKAGE_BEECRYPT is not set # BR2_PACKAGE_LIBGCRYPT is not set # BR2_PACKAGE_LIBGPG_ERROR is not set # BR2_PACKAGE_OPENSSL is not set # # Database # # BR2_PACKAGE_BERKELEYDB is not set # # Mysql client requires a toolchain with C++ support enabled # # BR2_PACKAGE_SQLITE is not set # # Filesystem # # # gamin requires a toolchain with WCHAR support # # BR2_PACKAGE_LIBCONFIG is not set # BR2_PACKAGE_LIBCONFUSE is not set # # libfuse requires a toolchain with LARGEFILE support # # BR2_PACKAGE_LIBLOCKFILE is not set # BR2_PACKAGE_LIBSYSFS is not set # # Graphics # # # atk requires a toolchain with WCHAR support # # BR2_PACKAGE_CAIRO is not set # BR2_PACKAGE_FONTCONFIG is not set # BR2_PACKAGE_FREETYPE is not set # BR2_PACKAGE_JPEG is not set # BR2_PACKAGE_LIBART is not set # # libgtk2 requires a toolchain with WCHAR and C++ support # # BR2_PACKAGE_LIBPNG is not set # BR2_PACKAGE_LIBSVGTINY is not set # BR2_PACKAGE_LIBUNGIF is not set # # pango requires a toolchain with WCHAR and C++ support # # BR2_PACKAGE_PIXMAN is not set # BR2_PACKAGE_TIFF is not set # # webkit requires C++, WCHAR in toolchain and libgtk2 # # # Hardware handling # # BR2_PACKAGE_LIBAIO is not set # BR2_PACKAGE_LIBRAW1394 is not set # BR2_PACKAGE_TSLIB is not set # BR2_PACKAGE_LIBUSB is not set # # Networking # # BR2_PACKAGE_LIBCGI is not set # # libcgicc requires a toolchain with C++ support enabled # # BR2_PACKAGE_LIBCURL is not set # BR2_PACKAGE_LIBDNET is not set # BR2_PACKAGE_LIBEXOSIP2 is not set # BR2_PACKAGE_LIBIDN is not set # BR2_PACKAGE_LIBMICROHTTPD is not set # BR2_PACKAGE_NEON is not set # BR2_PACKAGE_LIBNL is not set # BR2_PACKAGE_LIBPCAP is not set # BR2_PACKAGE_LIBOSIP2 is not set # BR2_PACKAGE_LIBRSYNC is not set # # libsoup requires a toolchain with WCHAR support # # # libupnp requires a toolchain with LARGEFILE support # # # Other # # BR2_PACKAGE_ARGP_STANDALONE is not set # BR2_PACKAGE_LIBATOMIC_OPS is not set # BR2_PACKAGE_LIBCAP is not set # BR2_PACKAGE_LIBDAEMON is not set # BR2_PACKAGE_LIBELF is not set # BR2_PACKAGE_LIBEVENT is not set # # libglib2 requires a toolchain with WCHAR support # # BR2_PACKAGE_LIBOIL is not set # # Text and terminal handling # # # enchant requires a toolchain with C++ and WCHAR support enabled # # # icu requires a toolchain with C++ support and WCHAR enabled # # BR2_PACKAGE_LIBICONV is not set # BR2_PACKAGE_NCURSES is not set # BR2_PACKAGE_NEWT is not set # BR2_PACKAGE_PCRE is not set # BR2_PACKAGE_POPT is not set # BR2_PACKAGE_READLINE is not set # BR2_PACKAGE_SLANG is not set # # XML # # BR2_PACKAGE_EXPAT is not set # BR2_PACKAGE_EZXML is not set # BR2_PACKAGE_LIBXML2 is not set # BR2_PACKAGE_LIBXSLT is not set # # xerces-c++ requires a toolchain with C++ support enabled # # # Miscellaneous # # # shared-mime-info requires a toolchain with WCHAR support # # # Networking applications # # BR2_PACKAGE_ARGUS is not set # BR2_PACKAGE_AVAHI is not set # BR2_PACKAGE_AXEL is not set # # bind requires a toolchain with LARGEFILE support # # # bmon requires a toolchain with IPv6 support # # BR2_PACKAGE_BRIDGE is not set # # ctorrent requires a toolchain with C++ support enabled # # BR2_PACKAGE_CUPS is not set # BR2_PACKAGE_DNSMASQ is not set # BR2_PACKAGE_DROPBEAR is not set # BR2_PACKAGE_ETHTOOL is not set # BR2_PACKAGE_HOSTAPD is not set # BR2_PACKAGE_IFPLUGD is not set # # iperf requires a toolchain with C++ support enabled # # # iproute2 requires a toolchain with IPv6 support # # BR2_PACKAGE_IPSEC_TOOLS is not set # # iptables requires a toolchain with LARGEFILE support # # BR2_PACKAGE_IW is not set # # Kismet requires a toolchain with C++ support enabled # # BR2_PACKAGE_XL2TP is not set # BR2_PACKAGE_LINKS is not set # BR2_PACKAGE_LRZSZ is not set # BR2_PACKAGE_MII_DIAG is not set # BR2_PACKAGE_MROUTED is not set # # mutt requires a toolchain with WCHAR support # # # nbd requires a toolchain with WCHAR support # # # ncftp requires a toolchain with LARGEFILE support # # BR2_PACKAGE_NETPLUG is not set # BR2_PACKAGE_NETSNMP is not set # BR2_PACKAGE_NETSTAT_NAT is not set # # nfs-utils requires a toolchain with 'Enable RPC' selected # # BR2_PACKAGE_NTP is not set # BR2_PACKAGE_NUTTCP is not set # # olsr requires a toolchain with IPv6 support # # BR2_PACKAGE_OPENNTPD is not set # BR2_PACKAGE_OPENSSH is not set # BR2_PACKAGE_OPENVPN is not set # # portmap requires a toolchain with 'Enable RPC' selected # # BR2_PACKAGE_PPPD is not set # BR2_PACKAGE_PPTP_LINUX is not set # BR2_PACKAGE_PROFTPD is not set # BR2_PACKAGE_QUAGGA is not set # BR2_PACKAGE_RSH_REDONE is not set # BR2_PACKAGE_RSYNC is not set # BR2_PACKAGE_SAMBA is not set # BR2_PACKAGE_SER2NET is not set # BR2_PACKAGE_SOCAT is not set # BR2_PACKAGE_SPAWN_FCGI is not set # # Squid requires a toolchain with C++ and IPv6 support enabled # # BR2_PACKAGE_TCPDUMP is not set # BR2_PACKAGE_DHCPDUMP is not set # BR2_PACKAGE_TCPREPLAY is not set # BR2_PACKAGE_TN5250 is not set # BR2_PACKAGE_TTCP is not set # # udpcast requires a toolchain with LARGEFILE support # # BR2_PACKAGE_VPNC is not set # BR2_PACKAGE_VSFTPD is not set # BR2_PACKAGE_VTUN is not set # BR2_PACKAGE_WEBIF is not set # BR2_PACKAGE_WIRELESS_TOOLS is not set # BR2_PACKAGE_WPA_SUPPLICANT is not set # # Package managers # # BR2_PACKAGE_IPKG is not set # # Shell and utilities # # BR2_PACKAGE_AT is not set # BR2_PACKAGE_DIALOG is not set # BR2_PACKAGE_FILE is not set # BR2_PACKAGE_LOCKFILE_PROGS is not set # # logrotate requires a toolchain with WCHAR support # # BR2_PACKAGE_SCREEN is not set # BR2_PACKAGE_SUDO is not set # BR2_PACKAGE_WHICH is not set # # System tools # # # Text editors and viewers # # BR2_PACKAGE_ED is not set # BR2_PACKAGE_NANO is not set # BR2_PACKAGE_UEMACS is not set # # Target filesystem options # BR2_ROOTFS_POST_BUILD_SCRIPT="" BR2_ROOTFS_DEVICE_TABLE="target/generic/device_table.txt" BR2_ROOTFS_SKELETON_DEFAULT=y # BR2_ROOTFS_SKELETON_CUSTOM is not set # BR2_TARGET_ROOTFS_CRAMFS is not set # BR2_TARGET_ROOTFS_CLOOP is not set BR2_TARGET_ROOTFS_EXT2=y BR2_TARGET_ROOTFS_EXT2_BLOCKS=0 BR2_TARGET_ROOTFS_EXT2_INODES=0 BR2_TARGET_ROOTFS_EXT2_RESBLKS=0 BR2_TARGET_ROOTFS_EXT2_SQUASH=y BR2_TARGET_ROOTFS_EXT2_NONE=y # BR2_TARGET_ROOTFS_EXT2_GZIP is not set # BR2_TARGET_ROOTFS_EXT2_BZIP2 is not set # BR2_TARGET_ROOTFS_EXT2_LZMA is not set # BR2_TARGET_ROOTFS_JFFS2 is not set # BR2_TARGET_ROOTFS_UBIFS is not set # BR2_TARGET_ROOTFS_SQUASHFS is not set # BR2_TARGET_ROOTFS_TAR is not set # BR2_TARGET_ROOTFS_CPIO is not set # BR2_TARGET_ROOTFS_INITRAMFS is not set # BR2_TARGET_ROOTFS_ROMFS is not set # # Bootloaders # # BR2_TARGET_BAREBOX is not set # BR2_TARGET_UBOOT is not set # # Kernel # BR2_LINUX_KERNEL=y # BR2_LINUX_KERNEL_2_6_36 is not set BR2_LINUX_KERNEL_SAME_AS_HEADERS=y # BR2_LINUX_KERNEL_CUSTOM_VERSION is not set # BR2_LINUX_KERNEL_CUSTOM_TARBALL is not set BR2_LINUX_KERNEL_VERSION="2.6.36.2" BR2_LINUX_KERNEL_PATCH="" # BR2_LINUX_KERNEL_USE_DEFCONFIG is not set BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="sparcclassic.config" BR2_LINUX_KERNEL_ZIMAGE=y