Pan*_*nos 4 gcc embedded-linux yocto
我在树莓派（用于比特币矿工）上有一个预配置的 Linux 发行版。问题是这个发行版非常小，只有 busybox 用于基本命令。它没有包管理器，甚至没有 gcc 编译器。所以我的目标是在上面安装一个 gcc 编译器，这样我就可以进一步安装其他软件。
所以我基本上仅限于 busybox 中的这些命令：
root@raspberrypi:~# ls /bin
addgroup fgrep ping6
adduser grep ps
ash gunzip pwd
busybox gzip rm
cat hostname rmdir
chattr ip sed
chgrp kill sh
chmod ln sleep
chown login stty
cp ls su
cpio mkdir sync
date mknod tar
dd mktemp tinylogin
delgroup more touch
deluser mount true
df mountpoint umount
dmesg mountpoint.sysvinit uname
dnsdomainname mv usleep
dumpkmap netstat vi
echo pidof zcat
egrep pidof.sysvinit
false ping
root@raspberrypi:~# ls -l /usr/bin
lrwxrwxrwx 1 root root 12 Feb 21 14:30 [ -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 [[ -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 ar -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 awk -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 basename -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 bunzip2 -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 bzcat -> /bin/busybox
-rwxr-xr-x 1 root root 302368 Apr 22 2014 cgminer
-rwxrwxr-x 1 root root 4179 Apr 18 2014 cherryd
lrwxrwxrwx 1 root root 17 Feb 21 14:30 chvt -> /usr/bin/chvt.kbd
-rwxr-xr-x 1 root root 6860 Feb 19 12:23 chvt.kbd
lrwxrwxrwx 1 root root 12 Feb 21 14:30 clear -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 cmp -> /bin/busybox
-rwxr-xr-x 1 root root 4304 Mar 11 03:18 cracklib-check
-rwxr-xr-x 1 root root 218 Mar 11 03:18 cracklib-format
-rwxr-xr-x 1 root root 4796 Mar 11 03:18 cracklib-packer
-rwxr-xr-x 1 root root 3968 Mar 11 03:18 cracklib-unpacker
-rwxr-xr-x 1 root root 990 Mar 11 03:18 create-cracklib-dict
-rwxr-xr-x 1 root root 135908 Mar 28 12:33 curl
lrwxrwxrwx 1 root root 12 Feb 21 14:30 cut -> /bin/busybox
lrwxrwxrwx 1 root root 23 Feb 21 14:37 dbclient -> /usr/sbin/dropbearmulti
lrwxrwxrwx 1 root root 12 Feb 21 14:30 dc -> /bin/busybox
-rwxr-xr-x 1 root root 13372 Feb 19 12:24 ddcmon
lrwxrwxrwx 1 root root 22 Feb 21 14:30 deallocvt -> /usr/bin/deallocvt.kbd
-rwxr-xr-x 1 root root 7352 Feb 19 12:23 deallocvt.kbd
-rwxr-xr-x 1 root root 64815 Feb 19 12:24 decode-dimms
-rwxr-xr-x 1 root root 6104 Feb 19 12:24 decode-edid
-rwxr-xr-x 1 root root 5650 Feb 19 12:24 decode-vaio
lrwxrwxrwx 1 root root 12 Feb 21 14:30 diff -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 dirname -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 du -> /bin/busybox
-rwxr-xr-x 1 root root 58744 Feb 19 12:23 dumpkeys
lrwxrwxrwx 1 root root 12 Feb 21 14:30 dumpleases -> /bin/busybox
-rwxr-xr-x 1 root root 287 Feb 19 12:24 easy_install
-rwxr-xr-x 1 root root 295 Feb 19 12:24 easy_install-2.7
lrwxrwxrwx 1 root root 12 Feb 21 14:30 env -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 expr -> /bin/busybox
lrwxrwxrwx 1 root root 22 Feb 21 14:30 fgconsole -> /usr/bin/fgconsole.kbd
-rwxr-xr-x 1 root root 7460 Feb 19 12:23 fgconsole.kbd
lrwxrwxrwx 1 root root 12 Feb 21 14:30 find -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 flock -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 free -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 fuser -> /bin/busybox
-rwxr-xr-x 1 root root 7736 Feb 19 12:23 getkeycodes
lrwxrwxrwx 1 root root 12 Feb 21 14:30 groups -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 head -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 hexdump -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 id -> /bin/busybox
-rwxr-xr-x 1 root root 7936 Feb 19 12:23 kbd_mode
-rwxr-xr-x 1 root root 8492 Feb 19 12:23 kbdrate
lrwxrwxrwx 1 root root 12 Feb 21 14:30 killall -> /bin/busybox
lrwxrwxrwx 1 root root 22 Feb 21 14:32 last -> /usr/bin/last.sysvinit
-rwxr-xr-x 1 root root 14048 Feb 19 12:15 last.sysvinit
lrwxrwxrwx 1 root root 4 Feb 21 14:32 lastb -> last
lrwxrwxrwx 1 root root 12 Feb 21 14:30 less -> /bin/busybox
-rwxr-xr-x 1 root root 85348 Feb 19 12:23 loadkeys
-rwxr-xr-x 1 root root 19952 Feb 19 12:23 loadunimap
lrwxrwxrwx 1 root root 12 Feb 21 14:30 logger -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 logname -> /bin/busybox
-rwxr-xr-x 1 root root 1229 Feb 19 12:24 mako-render
-rwxr-xr-x 1 root root 15000 Feb 19 12:23 mapscrn
lrwxrwxrwx 1 root root 12 Feb 21 14:30 md5sum -> /bin/busybox
lrwxrwxrwx 1 root root 22 Feb 21 14:32 mesg -> /usr/bin/mesg.sysvinit
-rwxr-xr-x 1 root root 6532 Feb 19 12:15 mesg.sysvinit
lrwxrwxrwx 1 root root 12 Feb 21 14:30 microcom -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 mkfifo -> /bin/busybox
-rwxr-xr-x 1 root root 18056 Mar 11 03:20 mkhomedir_helper
lrwxrwxrwx 1 root root 12 Feb 21 14:30 nc -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 nohup -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 nslookup -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 od -> /bin/busybox
-rwxr-xr-x 1 root root 488032 Apr 18 2014 openssl
lrwxrwxrwx 1 root root 19 Feb 21 14:30 openvt -> /usr/bin/openvt.kbd
-rwxr-xr-x 1 root root 12084 Feb 19 12:23 openvt.kbd
-rwxr-xr-x 1 root root 9852 Mar 11 03:20 pam_tally
-rwxr-xr-x 1 root root 9872 Mar 11 03:20 pam_tally2
-rwxr-xr-x 1 root root 9904 Mar 11 03:20 pam_timestamp_check
lrwxrwxrwx 1 root root 14 Feb 21 14:30 passwd -> /bin/tinylogin
lrwxrwxrwx 1 root root 12 Feb 21 14:30 patch -> /bin/busybox
lrwxrwxrwx 1 root root 10 Feb 21 14:37 perl -> perl5.14.3
-rwxr-xr-x 1 root root 8768 Feb 19 12:25 perl5.14.3
lrwxrwxrwx 1 root root 12 Feb 21 14:30 printf -> /bin/busybox
lrwxrwxrwx 1 root root 9 Feb 21 14:30 psfaddtable -> psfxtable
lrwxrwxrwx 1 root root 9 Feb 21 14:30 psfgettable -> psfxtable
lrwxrwxrwx 1 root root 9 Feb 21 14:30 psfstriptable -> psfxtable
-rwxr-xr-x 1 root root 16844 Feb 19 12:23 psfxtable
lrwxrwxrwx 1 root root 28 Feb 21 14:32 psplash -> /usr/bin/psplash-raspberrypi
-rwxr-xr-x 1 root root 50484 Feb 19 12:16 psplash-default
-rwxr-xr-x 1 root root 113760 Feb 19 12:16 psplash-raspberrypi
-rwxr-xr-x 1 root root 5516 Feb 19 12:16 psplash-write
lrwxrwxrwx 1 root root 7 Feb 21 14:37 python -> python2
lrwxrwxrwx 1 root root 14 Feb 21 14:37 python-config -> python2-config
lrwxrwxrwx 1 root root 9 Feb 21 14:37 python2 -> python2.7
lrwxrwxrwx 1 root root 16 Feb 21 14:37 python2-config -> python2.7-config
-rwxr-xr-x 1 root root 6268 Apr 18 2014 python2.7
-rwxr-xr-x 1 root root 1618 Feb 19 12:19 python2.7-config
lrwxrwxrwx 1 root root 12 Feb 21 14:30 readlink -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 realpath -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 renice -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 reset -> /bin/busybox
-rwxr-xr-x 1 root root 11882 Feb 19 12:24 rpio
-rwxr-xr-x 1 root root 16597 Feb 19 12:24 rpio-curses
lrwxrwxrwx 1 root root 12 Feb 21 14:30 run-parts -> /bin/busybox
lrwxrwxrwx 1 root root 23 Feb 21 14:37 scp -> /usr/sbin/dropbearmulti
lrwxrwxrwx 1 root root 12 Mar 11 02:22 screen -> screen-4.0.3
-rwxr-xr-x 1 root root 312200 Mar 11 02:22 screen-4.0.3
lrwxrwxrwx 1 root root 12 Feb 21 14:30 seq -> /bin/busybox
-rwxr-xr-x 1 root root 33868 Feb 19 12:23 setfont
-rwxr-xr-x 1 root root 7276 Feb 19 12:23 setkeycodes
-rwxr-xr-x 1 root root 8768 Feb 19 12:23 setleds
-rwxr-xr-x 1 root root 6900 Feb 19 12:23 setmetamode
-rwxr-xr-x 1 root root 14260 Feb 19 12:23 showconsolefont
-rwxr-xr-x 1 root root 10020 Feb 19 12:23 showkey
lrwxrwxrwx 1 root root 12 Feb 21 14:30 sort -> /bin/busybox
-rwxr-xr-x 1 root root 49100 Feb 19 12:13 sqlite3
lrwxrwxrwx 1 root root 23 Feb 21 14:37 ssh -> /usr/sbin/dropbearmulti
lrwxrwxrwx 1 root root 12 Feb 21 14:30 stat -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 strings -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 tail -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 tee -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 telnet -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 test -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 tftp -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 time -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 top -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 tr -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 traceroute -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 tty -> /bin/busybox
-rwxr-xr-x 1 root root 137588 Feb 19 12:23 udevadm
-rwxr-xr-x 1 root root 2425 Feb 19 12:23 unicode_start
-rwxr-xr-x 1 root root 363 Feb 19 12:23 unicode_stop
lrwxrwxrwx 1 root root 12 Feb 21 14:30 uniq -> /bin/busybox
-rwxr-xr-x 1 root root 26424 Mar 11 03:20 unix_chkpwd
-rwxr-xr-x 1 root root 26412 Mar 11 03:20 unix_update
lrwxrwxrwx 1 root root 12 Feb 21 14:30 unzip -> /bin/busybox
-rwxr-xr-x 1 root root 4267 Feb 19 12:09 update-alternatives
lrwxrwxrwx 1 root root 12 Feb 21 14:30 uptime -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 users -> /bin/busybox
lrwxrwxrwx 1 root root 26 Feb 21 14:32 utmpdump -> /usr/bin/utmpdump.sysvinit
-rwxr-xr-x 1 root root 9568 Feb 19 12:15 utmpdump.sysvinit
lrwxrwxrwx 1 root root 14 Feb 21 14:30 vlock -> /bin/tinylogin
lrwxrwxrwx 1 root root 22 Feb 21 14:32 wall -> /usr/bin/wall.sysvinit
-rwxr-xr-x 1 root root 10764 Feb 19 12:15 wall.sysvinit
lrwxrwxrwx 1 root root 12 Feb 21 14:30 watch -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 wc -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 wget -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 which -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 who -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 whoami -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 xargs -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 yes -> /bin/busybox
到目前为止我尝试过的是从这里下载一个新的 busybox ，其中包含更多命令，最显着的是 rpm（尽管仍然缺少 dpkg）
root@raspberrypi:~# ./busybox-armv7l
BusyBox v1.21.1 (2013-07-08 10:26:30 CDT) multi-call binary.
BusyBox is copyrighted by many authors between 1998-2012.
Licensed under GPLv2. See source distribution for detailed
copyright notices.
Usage: busybox [function [arguments]...]
or: busybox --list[-full]
or: busybox --install [-s] [DIR]
or: function [arguments]...
BusyBox is a multi-call binary that combines many common Unix
utilities into a single executable. Most people will create a
link to busybox for each function they wish to use and BusyBox
will act like whatever it was invoked as.
Currently defined functions:
[, [[, acpid, add-shell, addgroup, adduser, adjtimex, arp, arping, ash, awk, base64,
basename, beep, blkid, blockdev, bootchartd, brctl, bunzip2, bzcat, bzip2, cal, cat,
catv, chat, chattr, chgrp, chmod, chown, chpasswd, chpst, chroot, chrt, chvt, cksum,
clear, cmp, comm, conspy, cp, cpio, crond, crontab, cryptpw, cttyhack, cut, date, dc, dd,
deallocvt, delgroup, deluser, depmod, devmem, df, dhcprelay, diff, dirname, dmesg, dnsd,
dnsdomainname, dos2unix, du, dumpkmap, dumpleases, echo, ed, egrep, eject, env, envdir,
envuidgid, ether-wake, expand, expr, fakeidentd, false, fbset, fbsplash, fdflush,
fdformat, fdisk, fgconsole, fgrep, find, findfs, flock, fold, free, freeramdisk, fsck,
fsck.minix, fsync, ftpd, ftpget, ftpput, fuser, getopt, getty, grep, groups, gunzip,
gzip, halt, hd, hdparm, head, hexdump, hostid, hostname, httpd, hush, hwclock, id,
ifconfig, ifdown, ifenslave, ifplugd, ifup, inetd, init, insmod, install, ionice, iostat,
ip, ipaddr, ipcalc, ipcrm, ipcs, iplink, iproute, iprule, iptunnel, kbd_mode, kill,
killall, killall5, klogd, last, less, linux32, linux64, linuxrc, ln, loadfont, loadkmap,
logger, login, logname, logread, losetup, lpd, lpq, lpr, ls, lsattr, lsmod, lsof, lspci,
lsusb, lzcat, lzma, lzop, lzopcat, makedevs, makemime, man, md5sum, mdev, mesg, microcom,
mkdir, mkdosfs, mke2fs, mkfifo, mkfs.ext2, mkfs.minix, mkfs.vfat, mknod, mkpasswd,
mkswap, mktemp, modinfo, modprobe, more, mount, mountpoint, mpstat, mt, mv, nameif,
nanddump, nandwrite, nbd-client, nc, netstat, nice, nmeter, nohup, nslookup, ntpd, od,
openvt, passwd, patch, pgrep, pidof, ping, ping6, pipe_progress, pivot_root, pkill, pmap,
popmaildir, poweroff, powertop, printenv, printf, ps, pscan, pstree, pwd, pwdx,
raidautorun, rdate, rdev, readahead, readlink, readprofile, realpath, reboot, reformime,
remove-shell, renice, reset, resize, rev, rm, rmdir, rmmod, route, rpm, rpm2cpio,
rtcwake, run-parts, runlevel, runsv, runsvdir, rx, script, scriptreplay, sed, sendmail,
seq, setarch, setconsole, setfont, setkeycodes, setlogcons, setserial, setsid, setuidgid,
sh, sha1sum, sha256sum, sha3sum, sha512sum, showkey, slattach, sleep, smemcap, softlimit,
sort, split, start-stop-daemon, stat, strings, stty, su, sulogin, sum, sv, svlogd,
swapoff, swapon, switch_root, sync, sysctl, syslogd, tac, tail, tar, tcpsvd, tee, telnet,
telnetd, test, tftp, tftpd, time, timeout, top, touch, tr, traceroute, traceroute6, true,
tty, ttysize, tunctl, udhcpc, udhcpd, udpsvd, umount, uname, unexpand, uniq, unix2dos,
unlzma, unlzop, unxz, unzip, uptime, users, usleep, uudecode, uuencode, vconfig, vi,
vlock, volname, wall, watch, watchdog, wc, wget, which, who, whoami, whois, xargs, xz,
xzcat, yes, zcat, zcip
我从这里下载了一些 gcc rpm http://rpmfind.net/linux/rpm2html/search.php?query=gcc&submit=Search+...&system=&arch= 但由于某种原因 gcc 不执行
root@raspberrypi:~# ./busybox-armv7l rpm -i gcc-4.8.2-1.fc20.armv7hl.rpm
root@raspberrypi:~# find / -name gcc
/usr/bin/gcc
/usr/share/doc/gcc
/usr/lib/gcc
/usr/libexec/gcc
/opt/STM/STLinux-2.4/devkit/armv7/target/usr/bin/gcc
/opt/STM/STLinux-2.4/devkit/armv7/target/usr/lib/gcc
/opt/STM/STLinux-2.4/devkit/armv7/target/usr/libexec/gcc
root@raspberrypi:~# cd /usr/bin
root@raspberrypi:/usr/bin# ./gcc
-sh: ./gcc: not found
root@raspberrypi:/usr/bin# ls -l
lrwxrwxrwx 1 root root 12 Feb 21 14:30 [ -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 [[ -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 ar -> /bin/busybox
-rwxr-xr-x 1 root root 562184 Mar 29 02:30 arm-linux-gnu-cpp
-rwxr-xr-x 1 root root 562184 Mar 29 02:30 arm-linux-gnu-gcc
-rwxr-xr-x 1 root root 257596 Mar 29 02:30 arm-linux-gnu-gcov
-rwxr-xr-x 2 root root 622224 Oct 17 10:53 armv7hl-redhat-linux-gnueabi-gcc
lrwxrwxrwx 1 root root 12 Feb 21 14:30 awk -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 basename -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 bunzip2 -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 bzcat -> /bin/busybox
-rwxr-xr-x 1 root root 224 Oct 17 10:52 c89
-rwxr-xr-x 1 root root 215 Oct 17 10:52 c99
lrwxrwxrwx 1 root root 3 Apr 10 21:31 cc -> gcc
-rwxr-xr-x 1 root root 302368 Apr 22 2014 cgminer
-rwxrwxr-x 1 root root 4179 Apr 18 2014 cherryd
lrwxrwxrwx 1 root root 17 Feb 21 14:30 chvt -> /usr/bin/chvt.kbd
-rwxr-xr-x 1 root root 6860 Feb 19 12:23 chvt.kbd
lrwxrwxrwx 1 root root 12 Feb 21 14:30 clear -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 cmp -> /bin/busybox
-rwxr-xr-x 1 root root 4304 Mar 11 03:18 cracklib-check
-rwxr-xr-x 1 root root 218 Mar 11 03:18 cracklib-format
-rwxr-xr-x 1 root root 4796 Mar 11 03:18 cracklib-packer
-rwxr-xr-x 1 root root 3968 Mar 11 03:18 cracklib-unpacker
-rwxr-xr-x 1 root root 990 Mar 11 03:18 create-cracklib-dict
....
-rwxr-xr-x 1 root root 287 Feb 19 12:24 easy_install
-rwxr-xr-x 1 root root 295 Feb 19 12:24 easy_install-2.7
lrwxrwxrwx 1 root root 12 Feb 21 14:30 env -> /bin/busybox
lrwxrwxrwx 1 root root 12 Feb 21 14:30 expr -> /bin/busybox
lrwxrwxrwx 1 root root 22 Feb 21 14:30 fgconsole -> /usr/bin/fgconsole.kbd
-rwxr-xr-x 1 root root 7460 Feb 19 12:23 fgconsole.kbd
lrwxrwxrwx 1 root root
您已将此帖子标记为“yocto”。所以我唯一可以建议你的是使用这个很棒的工具:)你不想从你的 raspi 编译你的工具，而是从你的杀手级 Linux 机器:)
首先，确保您具备所有先决条件。对于软呢帽：
sudo yum install gawk make wget tar bzip2 gzip python unzip perl patch \
diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath \
ccache perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue socat
对于 ubuntu/debian：
sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \
build-essential chrpath socat
然后，你可以从 git://git.yoctoproject.org/poky 获取 yocto
git clone git://git.yoctoproject.org/poky -b daisy
然后，您需要获取raspberrypi层及其依赖项：
cd poky
git clone http://git.yoctoproject.org/git/meta-raspberrypi -b daisy
git clone git://git.openembedded.org/meta-openembedded -b daisy
然后，设置构建环境：
source oe-init-build-env rpi-build
这里 rpi-build 将是构建目录的名称，它可以是你想要的任何名称。这将设置使用 yocto 所需的所有环境变量，并将您移动到新创建的构建目录。
编辑conf/bblayers.conf并将所需的层添加到BBLAYERS。它应该看起来像这样：
BBLAYERS ?= " \
/path/to/poky/meta \
/path/to/poky/meta-yocto \
/path/to/poky/meta-yocto-bsp \
/path/to/poky/meta-openembedded/meta-oe \
/path/to/poky/meta-raspberrypi \
"
然后，编辑 conf/local.conf 将 MACHINE 变量设置为 raspberrypi：
MACHINE ?= "raspberrypi"
您还可以通过更改来告诉 yocto 生成 deb 文件而不是默认的 rpm：
PACKAGE_CLASSES ?= "package_rpm"
到：
PACKAGE_CLASSES ?= "package_deb"
为了快速让 dpkg 出现在构建中，只需在 conf/local.conf 中添加以下行
CORE_IMAGE_EXTRA_INSTALL="dpkg"
并创建一个基本图像：
bitbake rpi-basic-image
这将需要一些时间......实际上需要很多时间（yocto 将生成整个根文件系统，它将下载源代码并编译它们，将为每个源创建 deb 包，并将生成可刷新的 s 映像）。
在此期间，我建议您阅读 yocto 文档，以了解如何向生成的图像添加更多软件和/或自定义它。解释 yocto 的工作原理不仅仅只是 stackoverflow 中的答案，您还需要阅读文档并进行一些练习。
但要了解的主要一点是 yocto 提供了收据。基本上，收据描述了如何获取包以及如何编译它。一个简单的收据示例可以在以下位置找到：
meta/recipes-devtools/rpm/rpmresolve_1.0.bb
yocto 的好处是您可以轻松添加自己的收据。层提供了receipes的超集，它们还允许定制。在这里，我们添加了 raspberrypi 层以添加对树莓派的支持。树莓派层提供了配置内核所需的所有方法，以及引导加载程序等......
编译完成后，为了刷新生成的 SD 映像，只需执行以下操作：
dd bs=4M if=/path/to/rpi-build/tmp/deploy/images/raspberrypi/rpi-basic-image-raspberrypi.rpi-sdimg of=/dev/sd?
“SD”在哪里？是你的（未安装的）SD卡（如果需要的话考虑保存它）将你的SD卡插回你的raspi，启动它。
为了找出 raspi IP，您可以扫描网络以查找开放的 ssh 端口：
nmap -p 22 --open -sV YOU_SUBNET_ADDRESS/SUBNET_SIZE
例子：
nmap -p 22 --open -sV 192.168.1.0/24
ssh root@RASPI-IP
瞧！
下次你需要构建一个新包时，你可以这样做：
bitbake package-name
然后将生成的 .deb 文件（从 tmp/work/armv6-vfp-poky-linux-gnueabi/PACKAGE_NAME/PACKAGE_VERSION/deploy-debs/armv6-vfp/PACKAGE.ipk）复制到 raspi 并使用 dpkg 来安装它。您还可以基于 rpi-basic-image 创建自己的映像并添加您自己选择的软件包。
以 htop 为例：
bitbake htop
scp ./tmp/work/armv6-vfp-poky-linux-gnueabi/htop/1.0.3-r0/deploy-debs/armv6-vfp/htop_1.0.3-r0_armv6-vfp.deb root@myraspi
yocto 对于简化交叉编译过程非常有帮助。
来源： https: //github.com/djwillis/meta-raspberrypi https://yoctoproject.org
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