红联Linux门户
Linux帮助
当前位置: 红联Linux门户 > UniX技术文章

UNIX下用DD做磁盘完整拷贝

发布时间:2006-10-29 21:51:40来源:红联作者:novemberfa
　　UNIX系统下一般用DD做整盘拷贝，通常是为了做系统盘的备份，条件是要求源盘和目的盘必须同型号和大小，尤其是容量必须一致。现在以SOLARIS系统为例，简述一下操作方法。
　　软、硬件环境：SUN 450，操作系统为SOLARIS7。
　　准备工作：在确定切断电源的情况下，将要复制的目的盘安装到机器上，要保证和要复制的源盘的一致性。
　　实现过程：用CD ROM启动系统后，确保源盘上无数据交换发生。查看系统中的硬盘设备：
引用:
# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c0t0d0 %26lt;SUN9.0G cyl 4924 alt 2 hd 27 sec 133%26gt;;
/pci@1f,4000/scsi@3/sd@0,0
1. c0t2d0 %26lt;SUN18G cyl 7506 alt 2 hd 19 sec 248%26gt;;
/pci@1f,4000/scsi@3/sd@2,0
2. c0t3d0 %26lt;SUN18G cyl 7506 alt 2 hd 19 sec 248%26gt;;
/pci@1f,4000/scsi@3/sd@3,0

　　可以看到三个盘中，有两个是18G的，并且格式一致，假定源盘为c0t2d0，目的盘c0t3d0,，将前者完全复制到后者的命令如下：
引用:
#dd if=/dev/dsk/c0t2d0s2 of=/dev/rdsk/c0t3d0s2

　　一定要确定好哪是源盘，哪个是目的盘，否则就会造成严重后果。
　　if后边是源盘设备，of后边是目的盘，设备串最后的2代表整盘拷贝。几个小时左右，拷贝工作结束，系统回到#状态，出现拷贝完成的信息：
引用:
35368272+0 records in
35368272+0 records out

　　（如果要复制的盘为36G，那么用的时间就是上述操作的2倍，所以DD拷贝效率是很低的，但最可靠，尤其是将隐型文件全部复制，一般的拷贝命令做不到这一点）。
　　然后停机：
引用:
#halt

　　关电后，将备份盘取出，替换源盘，重新启动系统，测试备份是否成功。
　　有时出现重新检查磁盘块的提示，出现块错误检查并修复完成的信息，这是正常的，不影响系统运行。若再启动系统时，就不会提示上述信息。
文章评论

共有 1980 条评论

  1. 72.232.172.* 于 2007-04-03 17:59:52发表:

    Nice site!
    t mobile ringtones | free ringtones for t mobile | nokia downloads | us cellular ringtones | composer ringtones | ringtone jukebox | free sprint downloads | free wwe ringtones | free mp3 tones | free funny ringtones

  2. 72.232.172.* 于 2007-04-03 17:59:12发表:

    Nice site!
    centennial ringtones | mp3 to ringtone | free country ringtones | monophonic ringtones | ring tones | free samsung ringtones | cellular south ringtones | free mp3 ringtones | free motorola ringtone downloads | motorola ring tones

  3. 72.232.172.* 于 2007-04-02 20:45:03发表:

    Thank you!
    free slot machine games | poker online | pokerstars download | roulette download | free online slot machine games | russian roulette game | free slots machines | texas hold em free | texas holdem | online casino

  4. 72.232.172.* 于 2007-04-02 20:44:25发表:

    Great work!
    play slots for free | blackjack for free | best bonus casino | play money poker | blackjack free | on line gambling | online slot machines | free gambling | slots free | black jack free

  5. 72.232.172.* 于 2007-04-02 20:43:38发表:

    Good design!
    multiplayer poker | online free roulette | no deposit casino bonus | download casino | free online casinos | play blackjack free | free on line slots | free texas holdem | joker poker | best online casinos

  6. 72.232.172.* 于 2007-04-02 20:42:57发表:

    Nice site!
    download poker | online poker free | slots download | free blackjack game | play bingo | texas holdem | internet blackjack | no deposit bonus casinos | free monopoly online | free internet poker

  7. 72.232.172.* 于 2007-04-02 20:42:13发表:

    Nice site!
    free slots | poker game online | free play slot machines | play bingo online | free online casino slots | roulette online | free poker sites | free bingo games | casino slots | download party poker

  8. 72.232.172.* 于 2007-04-01 18:29:10发表:

    Thank you!
    cleopatra slots | no deposit bingo | bingo online | free online strip blackjack | slot machine | no deposit casino bonuses | free online slot games | free black jack games | free strip black jack | absolute poker

  9. 72.232.172.* 于 2007-04-01 18:28:21发表:

    Well done!
    slots games | live poker | play poker | internet gambling | online slot machines | texas holdem free online | monopoly online | casino game download | online baccarat | best online casinos

  10. 72.232.172.* 于 2007-04-01 18:27:29发表:

    Well done!
    free bingo games | download poker | play roulette | black jack download | games slots | slots for fun | cleopatra slot machine | download poker games | free online casino | best poker sites

  11. 72.232.172.* 于 2007-04-01 18:27:01发表:

    Good design!
    free strip blackjack | slot machines | free poker games | play slot machines | free internet poker | texas poker | online roulette game | casino bonus | internet casinos | casino download

  12. 72.232.172.* 于 2007-04-01 18:26:39发表:

    Well done!
    pokerstars download | slots online | free slots no downloads | on line gambling | free online texas hold em | play roulette for free | free casino online | free slot | poker machines | free money no deposit casinos

  13. 72.232.63.* 于 2007-03-31 18:26:35发表:

    Good design!
    free us cellular ring tones | free cellphone ringtones | free ctu ringtone | free verizon ringtones | free wwe ringtones | centennial ringtones | ringtones motorola | cellular south | ringtones download | free ringtones for boost mobile

  14. 72.232.250.* 于 2007-03-31 18:25:14发表:

    Great work!
    download free nokia ringtone | online ringtone converter | country music ringtones | ringtones for us cellular | free mp3 ringtones | ringtones verizon | wav ringtones | ringtones nokia | free cingular real ring tone | anime ringtones

  15. 72.232.250.* 于 2007-03-31 18:24:23发表:

    Thank you!
    us cellular ring tones | free nextel downloads | ringtones mp3 free | nokia ringtone | free t mobile ringtones | centennial wireless | nextel ringtone | midi ringtones | sony ericsson ringtones | voice ringtone

  16. 72.232.63.* 于 2007-03-31 18:24:04发表:

    Good design!
    ringtones for alltel | free sprint downloads | suncom ringtones | 24 ctu ringtone | tmobile free ringtones | ringtones cingular | free midi ringtone | free sms ringtones | download free ringtones | ringtone 24 ctu

  17. 65.110.43.* 于 2007-03-31 18:23:39发表:

    Great work!
    free christian ringtones | mtv ringtones | free ringtones for tracfones | ringtone ctu | voice ringtones | alltel ringtones | razr v3 ringtones | free star wars ringtones | blackberry ringtones | 24 ringtone free

  18. 72.232.250.* 于 2007-03-30 18:04:35发表:

    Great work!
    omaha poker | free online blackjack | free slot machine games online | free on line poker | black jack games | free casino downloads | games slots | poker | caribbean poker | online black jack game

  19. 65.110.43.* 于 2007-03-30 18:03:14发表:

    Thank you!
    free gambling | gambling machines | blackjack strip | no download casino | slot machine game | free sims slots | free poker software | free slim slots | full tilt poker | online baccarat

  20. 65.110.43.* 于 2007-03-30 18:02:43发表:

    Thank you!
    free online slots no downloads | slot games | pacific poker | free casino online | online casinos | free online slot machines | free slot games online | best usa casino online | slot machine | play slots for free

  21. 72.232.63.* 于 2007-03-30 18:02:26发表:

    Great work!
    free poker sites | new free money online casinos | bonus casino online | blackjack for free | slots free | texas hold em | fun slots | download free poker | online games | no deposit bonuses

  22. 72.232.63.* 于 2007-03-30 18:02:13发表:

    Thank you!
    roulette games | slots on line | strip blackjack online | play poker | texas hold em free | online bingo games | internet poker | casino online download | poker games download | black jack

  23. 72.232.172.* 于 2007-03-29 19:33:22发表:

    Well done!
    free ringtones for tracfone | alltel free ringtones | ringtones for alltel | samsung free ringtones | star wars ringtones | free anime | downloadable ringtones | free sprint pcs ringtones | free centennial wireless ringtones | nokia ringtone

  24. 72.232.172.* 于 2007-03-29 19:32:11发表:

    Nice site!
    ringtone composer | mosquito ringtone | free cricket ringtones | free ringtone creator | free samsung ringtones | cell phone ringtones | arabic ringtones | ringtones free | ringtone 24 | ringtone converter

  25. 72.232.172.* 于 2007-03-29 19:31:10发表:

    Thank you!
    download ringtones | download free nokia ringtone | nokia ringtones | free sms ringtones | free motorola downloads | ctu ringtone verizon | ringtones for nextel | mp3 ringtone download | sprint free ringtones | ringtones lg

  26. 72.232.172.* 于 2007-03-29 19:30:10发表:

    Thank you!
    motorola free ringtones | free mp3 ringtones | 24 ctu ringtone verizon | christian music ringtones | mp3 ringtones | free blackberry ringtones | u s cellular ringtones | centennial ringtones | free 24 ringtones | 24 ringtones

  27. 72.232.172.* 于 2007-03-29 19:29:21发表:

    Great work!
    ctu ringtone mp3 | 24 ring tones | ringtones for sprint phones | ringtones midi | t mobile ringtones | free suncom ringtones | free bollywood ringtones | tmobile free ringtones | ringtone jukebox | free ctu ringtone

  28. 72.232.172.* 于 2007-03-28 20:25:16发表:

    Great work!
    best poker sites | free fun slots | poker on line | poker websites | texas hold em poker | blackjack online free | play texas holdem | free online slot machine games | poker for fun | online poker usa

  29. 72.232.172.* 于 2007-03-28 20:23:54发表:

    Thank you!
    slots download | black jack game | online texas hold em | caribbean poker | poker | free poker | play slot machines | blackjack game | play texas holdem online | play bingo

  30. 72.232.172.* 于 2007-03-28 20:22:48发表:

    Nice site!
    online poker game | free texas hold em online | blackjack free games | free online slot machine | casino black jack | free online casino games | free casino games online | poker free download | free online roulette | download free poker

  31. 72.232.172.* 于 2007-03-28 20:21:41发表:

    Well done!
    casino no deposit | casino on line | free games online | casino games | online roulette free | planet poker | free roulette games | noble poker | online free poker | free texas hold em

  32. 72.232.172.* 于 2007-03-28 20:20:57发表:

    Nice site!
    free strip blackjack | live poker | slot machines free | free play slot machines | no deposit online casinos | free texas holdem poker | free online slots | free strip black jack | slots games | free video slot games

  33. 72.232.172.* 于 2007-03-27 21:59:58发表:

    Nice site!
    slots of fun | download free poker game | play slots | black jack download | free blackjack online | keno online | slot games free | best bonus casino | free slot machines | free poker money

  34. 72.232.172.* 于 2007-03-27 21:59:12发表:

    Nice site!
    free poker games | slots on line | games download | free online black jack | us poker sites | free poker sites | texas holdem poker | joker poker | free sims slots | slots free

  35. 72.232.172.* 于 2007-03-27 21:58:19发表:

    Well done!
    poker games free | empire poker | free texas holdem | blackjack online | play slots for fun | no deposit bonus casinos | casino online | free no deposit casinos | free video slot games | free money casino

  36. 72.232.172.* 于 2007-03-27 21:57:41发表:

    Great work!
    black jack | free slots no downloads | free cleopatra slots | free slots online | aussie slots | play bingo | no deposit casino bonuses | no deposit casino bonus | texas hold em | pacific poker

  37. 72.232.172.* 于 2007-03-27 21:56:58发表:

    Well done!
    free video poker | poker texas | best online casino games | free texas hold em online | free online slots | internet casino games | free casino games | play bingo online | play blackjack free | free casino games online

  38. 72.232.172.* 于 2007-03-27 01:48:08发表:

    Good design!
    free mp3 ringtone | free polyphonic ringtone download | alltel free ringtones | free cingular real ring tone | free ringtones for nokia | free midi ringtone | free ringtones alltel | 24 ringtone | ringtone websites | ringtones for us cellular

  39. 72.232.172.* 于 2007-03-27 01:46:46发表:

    Nice site!
    nextel downloads | free t mobile ringtones | free centennial wireless ringtones | monophonic ringtones | free star wars ringtones | real music ringtones | free suncom ringtones | free mp3 ringtones | free cingular ringtones | free samsung ringtones

  40. 72.232.172.* 于 2007-03-27 01:45:39发表:

    Thank you!
    free ringtones for lg | sprint free ringtones | free ringtones for cingular | free ringtones for sprint | free ringtones lg | polyphonic ringtone | 24 ctu ringtone verizon | verizon ringtones free | download ringtones free | mp3 ringtones download

  1. 首页上一页 34 35 36 37 38 下一页 尾页

频道文章

最新教程

随机推荐

关于我们 | 合作 | 联系我们

© linuxdiyf.com 红联Linux门户 版权所有