嵌入式實驗五解析

1、根文件系統(tǒng)移植實驗、實習題目針對arm2410cl的根文件系統(tǒng)移植實習目的了解arm2410cl根文件系統(tǒng)結(jié)構(gòu)，掌握其生成步驟，了解busybox、mkcramfs工具 三、實習內(nèi)容1 .配置并啟動redhat的samba服務(wù)（具體步驟見實驗四），把從110系統(tǒng) 下載的實驗所需壓縮包復制到redhat中。2 .在 redhat 中用 tar xjvf busybox-1.00-pre10.tar.bz2 解壓 busybox工具壓縮 包。切換到解壓后的 busybox-1.00-pre10目錄，再執(zhí)行 make menuconfig 命令，根據(jù)具體需要配置busybox編譯配置。.A I I

2、RJL/a Tl、y-4m J*ITJrootC root# cp -bfr /arn410c 1/raotfs/busybox-l .00-preW n/rootfs(roc ig虬 root I sjnilconda-ks. cfg busybox-1 JHi-pre 1 U. ta r ins la I L lugins lj 11. lag . syslogmg- sunp k s-1 .6 JO. lar .gzk忸編輯 隹看出終端轉(zhuǎn)到卻助（H?.bz2 I ibmin igu i-1 t6,10 uar qvfb- 1,1 h iar inle-L .6 JO. tar .gzro

3、otC motif tried ir root f5roo IC4KJ r uot cd rootf 5rocKBC rootf si# cp . r/busybox-1 00-pre 10k lar .bi2 . /rcxitC root!si# Hbusybox-1.00-preID.r.hz2(rooroo11 s# iar -j xv f busybox- 1 .()()-pre 10, tar fapp k iscoreu tilsf indut i1sL1CESEpu ichc ssysdepsarch iva Jdeb in.nc hide1。甘 inu t l I proep

4、esy !ik LogdALTintSdebunut iiin i 1Mkefik1 fle s l su i leChange logdocs1SSTALLmi !；cu | i 1 5加i le5 . makut 1- 1 inuxconf ig-up tc ched j lor ilibbbniidu tilsscr ip i &conioIsexanp le 91 ibpwjgrpnf iork ingshe 11pusynox-1 ruu-pre j 11/ cnren t 1 i / cu 1 r c hutiybox- J .OU-prelD/coreuli 1/pvuJ.c t

5、oolTJC rnot f s1# cd buybox-*00-prel0 (rue biisyhoS-1 .OU-pre 11)1# 1 st(：BC bui&ybox 1 .00-pr? 10/r運行 make menuconfig ,酉己置 busybox圖1 busybox配置界面文件（） 編輯（）S#（V） 終端（Q 轉(zhuǎn)到（9 幫助（比roolBC： /roolfs/busyt)ox-1 0()-pre 】。Arrow keys nav iga te the rwnu. se lects subrwnus .High I igh ted Ie t ter s are hotkeys.

6、 Press ing se lec tes a feature, while will exc lude a fea ture. Press to exit. for Ik? Ip. Legend: fea lure is selected fea ture is exc ludedBui Id BusyBox as a static binary (no shared libs)u i Id with Large File Suppor t (for access ing f i les 2 GB) o you want to bu i Id BusyBox wi th a Cross Co

7、np i ler?(/op t/hos t/ar!nr4 l/b in/armr4 1-unknown- 1 inux-) ross Conp i ler prefix () ny extra CFLAGS opt ions for the conpi ler?rootBC： /roolfs/busyboxT OO-pre 1文件編輯（） 查看（V） 終端（Q 轉(zhuǎn)到（G） 幫助（比1i Ie wi 1 1 exc lude a fea ture .Press to exit, forArrow keys nav iga te the nrnuPress nig se Icctes a fea

8、ture .liigh I igh ted Ie t ters are hotkeys .Legend: fea ture is se lected J fealure is excluded(./_ins tall) usyBox ins ta I la t ion pref ixroo&BG； oolfs/busyboxT ,01)-pre文件 編輯查看（V） 終端3 轉(zhuǎn)到（G） 幫助（WArrow keys nav iga te the nrnu. se lects subnrnus .High I igh ted Ie t ter s are hotkeys . Press ing s

9、e lec tes a feature, while wi) I exc lude a fea ture . Press to ex i t for Ik? Ip. Legend: fea ture is se lected fea ture is excludeduppor t read ing*uppor t runn inguppor I dunp ing*hou Id in i t be*alt*owroffebootan ini t tab f i le?ini t from wi thin an ini trd?core for child processes (debugg in

10、g on ly)?ex t ra_ qu ie t on hoot?3.修改編譯工具鏈的libc.a文件，先備份原文件。創(chuàng)建一個鏈接腳本，將 libnss_files.a, libnss_dns.a, libresolv.都力口入至I腳本中。鏈接文件內(nèi)容如下 圖所示：GROUP(/opt/host/armv41/arfnv41 -unknown-linux/lib/libc_ns + a/opt/ha5t/arffv41/armv41-unkncwn-linux/lilb/libnss_files.a /opt/host/arinv41/drmv41-unknown-linux/lib/lib

11、nssdns, a /apt/host/arfflv41/srmv41-unknown-linux/lib/libre5clv.* )圖2 libc.a鏈接文件Z1文件編輯起）查看終端05 轉(zhuǎn)到幫助抄Il root .：4JG /4 cd /opl/husl/armr4 l-uuiknowi-I mux/I ib11be.$。u6Iibcus tnnvidgelb soI ibcus toniidlge K so. 1I ibcus tomiidEe l 卜手口 J +1 ()euuSBC lib# k 1 ibc-2.2.1.soI ibc1ibc_nonshared.a1ibcp.aIib

12、crypt-2.2 J.sd |1抑 I ih# cp (too J ib# m |仃加1型 lib#libr* 1 ibcryp t .aI ibrryptjp,a1 ibcryptI ibcrypt +5口I ibc.soI ibc ka I ibcaa ikI ibc Iibc_ns.a4.在busybox-1.00-pre10 目錄下，執(zhí)行 make clean命令，清理上次編譯 的中間代碼文件。再執(zhí)行rm -f .depend 刪除舊的依賴文件。最后執(zhí) 行make命令編譯。文件 編輯 查看f竺答端 轉(zhuǎn)到康p ffiWKWroott阡 3 # cd /opt/hofl t/a rmr4

13、 l/a rinr4 l-iinknown-1 inux/1 ih rou lib# i I ibc*Iibc2.2.1 .soIibc+aI ibc noiiihtij red .aIibc_p h3I ibcrypt- TOOt(C roo 1,可視. roc l ：jBC2 ,2.1.eUlib# opI ih# mrI ibcrypt .a 1 ihc. si)GI ihcrypt _p hB I ihvu %t ,I ibcrypt.m I ibcuslonvid1.so JI ibcrypt /opL/host/arin4l/arm4lrunkncun-inux71ib/1ihc

14、J1F Zflpt/hos i /a rmr4 I Zarw4 |-unknon- I inux 7 I ib/ I ibc_Ti!i. a /opt/hos 1 /a rmr4 I Za r in 4 1-uiikjiumi 1 inu/ I ib/ ibnss_f i Ie i .a ?upt7hc?4 l-unknoun- 1 inux/ I ib/ I ibreiinlv、篇)以產(chǎn)root？BC lib#I ibc-2,2,1，eqI ibc .aI ibc+a hakI ibc_nanstia red .aroolBC lib#libc*I ibc_ns 后I ibc_p .aIib

15、crypt2.2.1 %。Iiberyp I . j1ibcrypt_p-a1ibcrypi .moI ibtrypl. jso . 11 ibc.soI jbc4 jto htiI ihtU$ tutm idge l. mI ibcus tnm idge l . fo . 1I jbcus tutrti idgc i. %u . I L )5.編譯完成后，執(zhí)行 make PREFIX=./root install 成后執(zhí)行 cp - rf /arm2410cl/rootfs/target ./ 文件夾 復制到 busybox-1.00-pre10目 錄，,生成安裝文件。完命令，將target

16、 cd target 切換到busybox-1.00-pre10下的target目錄，刪除無用的鏈接文件root/jam小小unTjo 11四七卬七二ggg工件編輯f宙音看終端QJ 轉(zhuǎn)到幫助(H)Iroolib# cd /rflot/roQtfn/busybnx-1HO(Hpre10rootvC buybox-l .00-prelC# nke cleanivakc -C les ts c kanirake i *bb such i i le or direcicry . Slop.inikc： clean Error 2 ( ignored ：rnn -f docs/busybox .dv i

17、 cioc5/busyhox ,ps docs/busybox.pod docs/busybox.nel/busybux.hUni docs/husybox podShtn *,gdh *+eIf * ccre *conf ig.Ig docs/liii yllox . l S t ducs/lkKiyUon . JUov .11 Lml docs/busybox .ne t/BusyBox.hlml butybox.1 inks Iibbb/loop.h .conf ig Id . hdepejid busyboxrm -r f _insta I I ind - -nanFp ,*hf la

18、gs -exec rm -f f ind - -nani? * .d -exec rm - f I ；find . -nanr *那 -pkcc rm -f I ；f rou husyhov- I .OU-pre 1C # rm -f .dependtoor：BC husyhox-l .00-prel01tf6.返回上一級到 busybox-1.00-pre10 目錄，執(zhí)行 mkcramfs target/ root.cramfs ,建立根文件系統(tǒng)。wtBG、/nx)m/Ixisybox 1。PF。文件 編輯(E)終端轉(zhuǎn)到幫助pes -Shadow -Os -fs t r ict-a I ia

19、s ing -fomi t-frarw-pointer -D_CMJ_S(1 KCE -ObOLBLG 區(qū)- c -o Iibbb/pr int_f ile,o Iibbb/pr int_f iIe.c/opt/hos t/armr4 l/b in/armr4 l-unknon- i inux-gcc -I ./ inc lude 11 t r ict-prototypes -Shadow -O; -fs tr ict-a 1 ias ing -fomi t-frarw-pointer -D_(MJ_SOLRCE -DbCtBLG- c -o Iibbb/ge t_console.o 1ibb

20、b/ge t_console.c/op t/hos l/armr4 l/b in/armr4 l-unknowi- I inux-gcc -I . / include -Mi 11 t r ict-pro to types -Shadow -Q; -fs Ir ict-a I ias ing -fomi t-frare-pointer -D_(HJ_SOLRCE -DhCEBUJ- c -o Iibbb/process_escape_sequencc.o 1ibbb/process_escape_sequence.c/opt/hos t/armr4 l/bin/arm4 l-unknosn-

21、I inux-gcc -I ./ include -M6 11 tr ict-prototypes -Shadow -Os -fs tr ict-a I ias ing -fomi t-frarw-pointer -D_GMJ_SOLRQ -OhTEBUG- c -o Iibbb/proeps.o Iibbb/proeps.c/opt/hos I/ar mr4 l/b in/armr4 l-unknon- I inux-gcc -I ./include -Mfi 11 ; t r ict-prototypes -Shadow -Os -fs t r ict-a I ias ing -fomi

22、t-franr-po in ter -D_CNJ_S(1KCE- c -o 1 ibbb/pd2spd o 1 ibbb/pd2spd . c/opt/hos t/armr4 l/b in/armr4 l-unknon- i inux-gcc -I ./ inc lude i 1 t r ict-prototy pes -Shadow -Os -fs tr ict-a I ias ing -fomi t-frarw-pointer -D_(MJ_SOLRCE -CbOiBUi- c -o I ibbb/puencrypt .o I ibbb/pv_encrypt .c/op t/hos t/a

23、rmr4 l/b in/arm4 l-unknowi- 1 inux-gcc -I ./ inc lude -Will t r ict-prototypes -Shadow -Q; -fs tr ict-a 1 ias ing -fomi t-franr-pointer -D_GNU_SOLRCE -DbCEBLG- c -o I ibbb/qrwdu le .o I ibbb/qirodu le .c/opt/hos t/armr4 l/b in/arm4 l-unknoi)- I inux-gcc -I. / include -WUI -W; tr ict-prololy pes -Kha

24、dow -fs tr ict-a I ias ing -fomi l-frarw-pointer -D_(NJ_SOLRCE -DhTEBUtJ- c -o 1ibbb/read_package_f ieId.o I ibbb/read_package_f ieId.croo 儂 BC： /ooifs/busyboxT ,U0-pre 10文件 編輯 S#(V) 終端(Q 轉(zhuǎn)到哂助(如pod2nBn -center=BusyBox -re lease= docs/BusyBox.1pod2html -no index docs/busybox .pod docs/busybox.ne t/Bu

25、syBox.htmlnkd ir -p docsrootSC busybox-1 .()0-prel()# Isapp le t sconf ig-upteched i torslibbbnudut i Isscr iptsarch iva 1console-too Isexarrp les1 ibpwdgrpne twork ingshe 11AITIBRScoreut iIsf indu tilsLICENSEpa tchessysdepsbusyboxdeb ianincludeloginut i Isproepssysk !ogdbusybox.1 inksdeb ianu tilsi

26、n i tMke i i leREADMEtes t su i teChange logdocsINSTALLmiscut iIsRules .mku t i1-1inuxroot4K2 busybox-1 .00-pre 1()# rrake PREFIXj./root ins ta 11/bin/sh appIc ts/ins ta 11.sh ./root./root/bin/ash - busybox./rool/bin/caI - busybox./root/bin/chgrp - busybox./rool/bin/chirod - busybox./root/bin/chown

27、- busybox./root/usr/sbin/chroot - ./. ./bin/busybox./root/usr/sb in/ine td - . ./b in/busybox./root/usr/sbin/te Inetd - ././bin/busybex rootBC busybox-1 .00-pre 1()# cd .rootJC rootfs# Is busybox-1.00-prel0 busybox-1.00-prei0.tar.bz2 root rootBC rootfs# Is root/ bin ) inuxrc sb in usrtC roolfs#7.JO：

28、J? BC: /1odLti-|O X|文件（E編輯好看山 終端轉(zhuǎn)到（1二）幫助必root *BCb in 加vr(Mt f&f cp -rf /arnl?4 10c l/roo I s / ta roo L fss targp l /e tc hos t lib 1inuv r l rmt procrge i Jsb in顯usrvarroot:C joulfg# cd largt 1/f rootBC la rgf 1 rm -r f bin/ I inuxrc sb in/ usr/rout.?BC lurgE# cp - r t . 7rou l/b in . root/ t inur c L L/r co /in L ./r uu i /usrraot34 7 L Uiv dntKfMton *nlow ol I8爐rt圖3 tftpd32配置配置完成后，在超級終端執(zhí)行t即flash root root.cramfs命令燒寫根文件系統(tǒng)。地址）匕J D： bootloader文件和文件夾任務(wù)大二2創(chuàng)建一個新文件夾 必將這個文件夾發(fā)布到 WebR共享此文件夾其它位置3J本地磁盤（D：）口我的文檔力共享文檔s j 2410-1.