dump

å称
     dump, rdump — ãã¡ã¤ã«ã·ã¹ãã ã®ããã¯ã¢ãã

æ¸å¼
     dump [-0123456789acLnSu] [-B records] [-b blocksize] [-C cachesize] [-D
     dumpdates] [-d density] [-f file | -P pipecommand] [-h level] [-s feet]
     [-T date] filesystem dump -W | -w

     rdump 㯠dump ã®å¥åã§ãã

(4.3BSD å½¢å¼ã®ãªãã·ã§ã³ã¯å¾æ¹äºææ§ã®ããã«å®è£ããã¦ãã¾ããã ããã§ã¯èª¬æãã¦ãã¾ããã)

解説
     dump ã¦ã¼ãã£ãªãã£ã¯ããã¡ã¤ã«ã·ã¹ãã ã調ã¹ã¦
     ããã¯ã¢ããããå¿è¦ã®ãããã¡ã¤ã«ã決å®ãã¾ãã ãããã®ãã¡ã¤ã«ã¯ãæå®ããããã£ã¹ã¯ããã¼ããã
     ãã®ä»ã®è¨æ¶ã¡ãã£ã¢ã¸ä¿åã®ããã³ãã¼ããã¾ã (ãªã¢ã¼ãããã¯ã¢ããã«ã¤ãã¦ã¯ã -f
     ãªãã·ã§ã³ãåç§)ã ãã³ãã®å¤§ãããè¨é²ã¡ãã£ã¢ã®å®¹éãã大ããå ´åã¯ã
     è¤æ°ããªã¥ã¼ã ã«åå²ãã¾ãã ããã¦ãã®ã¡ãã£ã¢ã®å®¹éã¯ãã¡ãã£ã¢ã®çµããéç¥ãããã¾ã§
     æ¸ãè¾¼ãã§ã¿ããã¨ã§æ±ºå®ãã¾ãã ãã®æ¹æ³ã¯ã -a
     ãªãã·ã§ã³ã«ããå¼·å¶çã«ä½¿ç¨ãããã¨ãã§ãã¾ãã

     ã¡ãã£ã¢ã®çµããæ£ããéç¥ã§ããªãã¡ãã£ã¢ (ä¸é¨ã® ã«ã¼ããªãã¸ã»ãã¼ããã©ã¤ãç)
     ã®å®¹éã¯ã ãã¼ãé·ã¨è¨é²å¯åº¦ã -B ãªãã·ã§ã³ããæ±ãã
     åããªã¥ã¼ã ã¯ãã¹ã¦åã容éãæã¤ãã®ã¨ãã¾ãã ããã©ã«ãã§ã¯ã
     ãªãã¬ã¼ã¿ã«ã¡ãã£ã¢äº¤æãè¦æ±ããå¾ã®åããªã¥ã¼ã ã«ã åãåºåãã¡ã¤ã«åã使ç¨ãã¾ãã

     ãã³ã対象ã®ãã¡ã¤ã«ã·ã¹ãã ã¯ãå¼æ° filesystem ã«ã¦ãããã¤ã¹ã¹ãã·ã£ã«ãã¡ã¤ã«ã
     (/etc/fstab ä¸ã®æ¨æºã¨ã³ããªã®å ´å) ãã¦ã³ããã¤ã³ãã§æå®ãã¾ãã

     dump ã¯ã次ã®ãªãã·ã§ã³ããµãã¼ããã¦ãã¾ãã

     -0-9    ãã³ãã¬ãã«ã ã¬ãã« 0 ã¯ãã«ããã¯ã¢ãããæå³ãããã¡ã¤ã«ã·ã¹ãã å¨ä½ãã³ãã¼
             ãããã¨ãä¿è¨¼ãã¾ã (ãã ã以ä¸ã® -h ãªãã·ã§ã³ã«ã注æãã¦ä¸ãã)ã 0
             ãã大ããªã¬ãã«çªå·ã¯ã¤ã³ã¯ãªã¡ã³ã¿ã«ããã¯ã¢ãããæå³ãã ååã®ãã³ã
             (ä»åæå®ãããã®ããä½ãã¬ãã«ã®ãã³ã) 以éã«ä½ããããä¿®æ‐
             £ããããã¹ã¦ã®ãã¡ã¤ã«ãã³ãã¼ãã¾ãã ããã©ã«ãã®ã¬ãã«ã¯ 0 ã§ãã

     -a      “ãªã¼ããµã¤ãº”
             å¨ã¦ã®ãã¼ãé·ã®èæ®ããããã¡ãã£ã¢ã®çµäºãéç¥ãããã¾ã§ãå¼·å¶çã«
             æ¸ãè¾¼ã¿ãç¶ãã¾ããç¾å¨ã®ã»ã¨ãã©ã®ãã¼ããã©ã¤ãã§ã¯ããã®æ¹æ³ã«ãã
             ãã£ã¨ãè¯ãçµæãå¾ããã¾ããç¹ã«ã使ãããã®ãã¼ãã«è¿½å ãããã
             ãã¼ãã¦ã§ã¢å§ç¸®æ©è½ã®ãããã¼ããã©ã¤ã(å§ç¸®çãã©ã®ç¨åº¦ã«ãªããä¸ç¢ºããª
             ãã®)ã使ç¨ãããããå ´åã«ãã®ãªãã·ã§ã³ã使ç¨ãããã¨ããè¦ããã¾ãã

     -B records
             ããªã¥ã¼ã ãããã®ãããã¤ãæ°ã§ãã ãã®å¤ãåºåãããã¯ãµã¤ãºã®æ´æ°åã§ãªãå ´åã
             ã³ãã³ãã¯ãã®å¤ããå°ããæ´æ°åå¤ã使ç¨ãã¾ãã
             ãã®ãªãã·ã§ã³ã¯ããã¼ãé·ã¨è¨é²å¯åº¦ãåºã«ãããã¼ã容éãã åªåããã¾ãã

     -b blocksize
             åºåãããã¯ãããã®ãããã¤ãæ°ã§ãã

     -C cachesize
             ãã£ãã·ã¥ãµã¤ãºãã¡ã¬ãã¤ãåä½ã§æå®ãã¾ãã æ§è½ãåçã«åä¸ãã¾ããã
             ãã¹éã®ãã¡ã¤ã«ã·ã¹ãã ã¸ã®å¤æ´ã« dump ãæ°ä»ããªãå¯è½æ§ãããã¾ãã
             ã¹ãããã·ã§ãããã³ãæã«ã¯æ¬ãªãã·ã§ã³ã常ã«ä½¿ç¨ãããã¨ããå§ããã¾ãã dump
             ã¯ãã©ã¼ã¯ãã¾ãã®ã§ã å®éã«ä½¿ç¨ãããã¡ã¢ãªéã¯ã‐
             ã£ãã·ã¥ãµã¤ãºãã大ãããããããªããã¨ã« 注æãã¦ãã ããã æ¨å¥¨ã‐
             ã£ãã·ã¥ãµã¤ãºã¯ 8 ãã 32 (ã¡ã¬ãã¤ã) ã®éã§ãã

     -c      ã«ã¼ããªãã¸ãã¼ããã©ã¤ãç¨ã«ãè¨é²å¯åº¦ã¨ãã¼ãé·ã®ããã©ã«ãããããã 8000
             bpiã1700 feet ã«å¤æ´ãã¾ãã

     -D dumpdates
             dumpdates ãã¡ã¤ã«ã®ä»£æ¿ãã¹ãæå®ãã¾ãã ããã©ã«ã㯠/etc/dumpdates
             ã§ãã

     -d density
             ãã¼ãã®è¨é²å¯åº¦ã density ã«è¨å®ãã¾ããããã©ã«ã㯠1600BPI ã§ãã

     -f file
             ããã¯ã¢ããã®åºååãã¡ã¤ã«ãæå®ãã¾ãã åºååãã¡ã¤ã«ã¨ãã¦ã¯ã /dev/sa0
             (ãã¼ããã©ã¤ã)ã /dev/fd1 (ãããããã£ã¹ã¯ãã©ã¤ã)ã®ãããªããã¤ã¹ãã¡ã¤ã«ã
             é常ãã¡ã¤ã«ã ‘-’ (æ¨æºåºå)ãæå®ãããã¨ãã§ãã¾ãã
             è¤æ°ã®ãã¡ã¤ã«åããã³ã³ãã§åºåã£ã¦ä¸ã¤ã®å¼æ°ã¨ãã¦æå®ãã ãã¨ãã§ãã¾ãã
             åãã¡ã¤ã«ã¯ããªã¹ããããé ã«ä¸ã¤ã®ãã³ãããªã¥ã¼ã ã«ä½¿ç¨ããã¾ãã
             æå®ããååã®æ°ããå¤ãã®ããªã¥ã¼ã ãå¿è¦ãªå ´åã
             ã¡ãã£ã¢ã®äº¤æãè¦æ±ããå¾ãæå¾ã®ãã¡ã¤ã«åãæ®ãã®ãã¹ã¦ã®
             ããªã¥ã¼ã ã«ä½¿ç¨ãã¾ãã ãã¡ã¤ã«åãã “host:file” ã¾ãã¯ã
             “user@host:file” ã®å½¢å¼ã§ããå ´åã dump ã¯ã rmt(8)
             ã使ç¨ãã¦ãªã¢ã¼ããã¹ãä¸ã®æå®ããããã¡ã¤ã«ã«æ¸ãè¾¼ã¿ã¾ãã ãªã¢ã¼ãã®
             rmt(8) ã®ããã©ã«ãã®ãã¹å㯠/etc/rmt ã§ãããç°å¢å¤æ° RMT
             ã®å¤ãåªåããã¾ãã

     -P pipecommand
             pipecommand ã§å®ç¾©ããã sh(1) ã¹ã¯ãªããæå‐
             åãåããªã¥ã¼ã ã®åºåããã¤ã¹ã«å¯¾ãã¦å®è¡ããããã« popen(3) ã使ãã¾ãã
             ãã®åã®ãã¤ãã©ã¤ã³ã® æ¨æºå¥å (/dev/fd/0) 㯠dump
             ã®åºåã¹ããªã¼ã ãããªãã¤ã¬ã¯ããããç°å¢å¤æ° DUMP_VOLUME
             ã«ã¯ç¾å¨æ¸ãè¾¼ãã§ããããªã¥ã¼ã çªå·ãè¨å®ããã¾ãã
             åããªã¥ã¼ã ãæ¸ãè¾¼ãã å¾ã§ããã¤ãã®æ¸ãæå´ãã¯ãã¼ãºããã pipecommand
             ãåã³å®è¡ããã¾ãã -B
             ã§ã¡ãã£ã¢ã®å¤§ãããæå®ããã¦ããã°ãåºåããã¼ããã©ã¤ãã§ãããã®ããã«ã
             åããªã¥ã¼ã ãä¸è¨ã®ããã«æ¸ãåºãã¾ãã

     -h level
             ãã³ãã¬ãã«ã level 以ä¸ã®æã«ãã¦ã¼ã¶ãæå®ãã “nodump” ãã©ã°
             (UF_NODUMP) ã«å¾ãã¾ã (h: honor the flag)ã ããã©ã«ãã® honor ã¬ãã«ã¯
             1 ã§ãããã ãã®ãããªãã¡ã¤ã«ã¯ãã¤ã³ã¯ãªã¡ã³ã¿ã«ãã³ãããã¯çããã¾ããã
             ãã«ããã¯ã¢ããã«ã¯å«ã¾ãã¾ãã

     -L      ã©ã¤ããã¡ã¤ã«ã·ã¹ãã ããã³ãä¸ã§ãããã¨ã dump ã«éç¥ãã¾ãã
             ä¸è²«æ§ã®ãããã³ãã¤ã¡ã¼ã¸ãå¾ãããã«ã
             ãã³ã対象ã®ãã¡ã¤ã«ã·ã¹ãã ã®ã«ã¼ãã® .snap ãã£ã¬ã¯ããªã«ã dump
             ã¯ãã¡ã¤ã«ã·ã¹ãã ã®ã¹ãããã·ã§ãããåãã ããããã¹ãããã·ã§ããããã³ããã¾ãã
             ãã³ãå®äºæã«ãã¹ãããã·ã§ããã¯åé¤ããã¾ãã
             ã¢ã³ãã¦ã³ãããããã¡ã¤ã«ã·ã¹ãã ãèª‐
             ã¿è¾¼ã¿å°ç¨ã®ãã¡ã¤ã«ã·ã¹ãã ã«å¯¾ãã¦ã¯ã ãã®ãªãã·ã§ã³ã¯ç¡è¦ããã¾ãã
             ãã³ã対象ã®ãã¡ã¤ã«ã·ã¹ãã ã®ã«ã¼ãã« .snap ãã£ã¬ã¯ããªãå‐
             å¨ããªãå ´åãè¦åãåºã¦ dump ã¯æ¨æºã®åä½ã«æ»ãã¾ãã
             ãã®åé¡ã¯ããã³ã対象ã®ãã¡ã¤ã«ã·ã¹ãã ã®ã«ã¼ãã« .snap
             ãã£ã¬ã¯ããªãä½æãããã¨ã§ã解決å¯è½ã§ãã ãã®ãã£ã¬ã¯ããªã®ææè㯠“root”
             ã§ãã°ã«ã¼ã㯠“operator” ã§ã ã¢ã¼ã㯠“0770” ã§ããã¹ãã§ãã

     -n      dump ããªãã¬ã¼ã¿ã«æ³¨æãä¿ãæã«ã wall(1) ã«ä¼¼ãæ¹æ³ã§ “operator”
             ã°ã«ã¼ãã«å±ãããã¹ã¦ã®ã¦ã¼ã¶ã«ã¡ãã»ã¼ã¸ãéãã¾ãã

     -S      ããã¯ã¢ããã®å¤§ããã¨å¿è¦ãªãã¼ãæ°ã®è¦ç©ããã表示ãã
             å®éã®ãã³ããå®è¡ããã«çµäºãã¾ãã

     -s feet
             ãã¼ãã®å®¹éãè¨ç®ããæã«è¨é²å¯åº¦ã¨ã¨ãã«ä½¿ãã¾ãã ãã®å®¹éãè¶ããå ´åã«ã
             dump ã¯æ°ãããã¼ããè¦æ±ãã¾ãã
             ãã®ãªãã·ã§ã³ã¯ããæ§ãç®ã«æå®ãããã¨ããå§ããã¾ãã
             ããã©ã«ãã®ãã¼ãã®é·ãã¯ã2300 ãã£ã¼ãã§ãã

     -T date
             dumpdates ãã¡ã¤ã« ããå¾ãããæ¥æã®ä»£ããã«ãæå®ããã date
             ããã³ãã®èµ·ç¹ã¨ã㦠使ãã¾ããdate ã®å½¢å¼ã¯ ctime(3)
             ã®ããã¨åãã§ãããã®ãªãã·ã§ã³ã¯æéãæå®ãã¦ããã¯ã¢ããã
             åããã³ãã¹ã¯ãªããã§æç¨ã§ãã -T ãªãã·ã§ã³ã¯ -u
             ãªãã·ã§ã³ã¨åæã«ã¯æå®ã§ãã¾ããã

     -u      ãã³ããæåããå¾ã§ã dumpdates ãã¡ã¤ã«ãæ´æ°ãã¾ãã dumpdates ãã¡ã¤ã«
             ã¯äººãèªãããã¡ã¤ã«ã§ãããåè¡ã«ä»¥ä¸ã®ã¬ã³ã¼ãã
             ããªã¼ãã©ã¼ãããã§è¨é²ããã¦ãã¾ã : ãã¡ã¤ã«ã·ã¹ãã åãã¤ã³ã¯ãªã¡ã³ãã¬ãã«ã
             ctime(3) å½¢å¼ã®ãã³ãæ¥ä»ã
             åã¬ãã«ã¨ãã¡ã¤ã«ã·ã¹ãã ãã¨ã«ã¨ã³ããªãä¸ã¤ã ãåå¨ãã¾ãã å¿è¦ãªãã
             dumpdates ãã¡ã¤ã« ã®åãã£ã¼ã«ããç·¨éãã¦ãæ§ãã¾ããã dumpdates
             ãã¡ã¤ã«ã®ããã©ã«ã㯠/etc/dumpdates ã§ããã -D
             ã使ç¨ãã¦ãããå¤æ´å¯è½ã§ãã

     -W      ãã³ãã®å¿è¦ããããã¡ã¤ã«ã·ã¹ãã ããªãã¬ã¼ã¿ã«è¡¨ç¤ºãã¾ãã ãã®æå ±ã¯
             dumpdates ãã¡ã¤ã« 㨠/etc/fstab ãã¡ã¤ã«ããéãããã¾ãã dump ã¯ã
             dumpdates ãã¡ã¤ã« ã®ä¸‐
             ã®åãã¡ã¤ã«ã·ã¹ãã æ¯ã«ææ°ã®ãã³ãæ¥ä»ã¨ã¬ãã«ã示ãã
             ãã³ãããã¹ããã¡ã¤ã«ã·ã¹ãã ãæããã«ãã¾ãã -W
             ãªãã·ã§ã³ãæå®ãããå ´åããã®ä»ã®ãã¹ã¦ã®ãªãã·ã§ã³ã¯ç¡è¦ããã dump
             ã¯ç´ã¡ã«çµäºãã¾ãã

     -w      -W ã¨åæ§ã§ããããã³ãã®å¿è¦ã®ãããã¡ã¤ã«ã·ã¹ãã ã®ã¿ã表示ãã¾ãã

     “nodump” ãã©ã° (UF_NODUMP) ãè¨å®ããããã£ã¬ã¯ããªããã³é常ãã¡ã¤ã«ã¨ã
     ãã®ãããªãã£ã¬ã¯ããªéä¸ã®ãã¹ã¦ã¯ãçç¥ããã¾ãã -h ãªãã·ã§ã³ã«å¾ãã¾ãã

     dump ã¦ã¼ãã£ãªãã£ã¯ã以ä¸ã«ç¤ºãå ´åã«ãªãã¬ã¼ã¿ã®ä»å¥ãè¦æ±ãã¾ã :
     ãã¼ãã®çµäºã ãã³ãã®çµäºã ãã¼ãæ¸ãè¾¼ã¿ã¨ã©ã¼ã ãã¼ããªã¼ãã³ã¨ã©ã¼ã ãã£ã¹ã¯èª‐
     ã¿è¾¼ã¿ã¨ã©ã¼ (32 åãè¶ããå ´å)ã
     å¦çãç¶ããããªãæãä½ã大å¤ã¾ããäºæã«ãªã£ãå ´åã«ã¯ã dump ã¯ã -n
     ãªãã·ã§ã³ãããã°ãã¹ã¦ã®ãªãã¬ã¼ã¿ã¸è¦åããããã§ã dump
     ã®å¶å¾¡ç«¯æ«ä¸ã§ãªãã¬ã¼ã¿ã¨ããã¨ããã¾ãã dump ã³ãã³ãããã®ãã¹ã¦ã®è³ªåã«ã¯ã
     “yes” ã¾ã㯠“no” ã§é©åã«çããªããã°ãªãã¾ããã

     ãã«ãã³ãã®å®æ½ã«ã¯å¤ãã®æéã¨å´åããããã®ã§ã dump
     ã¯åãã¼ãããªã¥ã¼ã ã®åé ã«ãã§ãã¯ãã¤ã³ããè¨å®ãã¾ãã
     ä½ããã®çç±ã«ãããããããªã¥ã¼ã ã®æ¸ãè¾¼ã¿ã失æããå ´åã«ã¯ã
     ãã¼ãã®å·»ãæ»ããæåºãæ°ãããã¼ãã®ãã¦ã³ãã®å¾ã§ã dump
     ã¯ãªãã¬ã¼ã¿ã®è¨±å¯ã®ä¸ã§ãã§ãã¯ãã¤ã³ãããå®è¡ãåéãã¾ãã

     dump ã¦ã¼ãã£ãªãã£ã¯ãå¦çã®é²è¡ã (5 åæ¯ã¾ã㯠SIGINFO åä¿¡æã«)
     å®æçã«ãªãã¬ã¼ã¿ã«å ±åãã¾ãã å ±åã«ã¯ãå°ãªãã«æ¨å®ãããæ¸ãè¾¼ã¿ãããã¯æ°ã
     å¿è¦ãªãã¼ãæ°ãå®äºã¾ã§ã®æéããã¼ã交æã¾ã§ã®æéã ãå«ã¿ã¾ãã dump
     ã«ä½¿ã£ã¦ãã端æ«ã使ç¨ä¸ã§ãããã¨ãä»äººã«ãåããããã«ã
     ãã®ã¡ãã»ã¼ã¸ã¯åé·ã«ãªã£ã¦ãã¾ãã

     ãã£ã¹ã¯ã«å£æ»çãªãã©ãã«ãèµ·ããæã«ã ããã¯ã¢ãããã¼ãããã¡ã¤ã«ãããã£ã¹ã¯ã復åããããã«
     å¿è¦ãªæéã¯ã ã¤ã³ã¯ãªã¡ã³ã¿ã«ãã³ããé©å½ãªã·ã¼ã±ã³ã¹ã§å®è¡ããäºã«ãã£ã¦
     æå°ã«ããäºãã§ãã¾ãã æå°ã®ãã¼ãæ°ã§ãããè¡ãªãå¹æçãªæ¹æ³ã示ãã¾ãã

           ·   常ã«ã¬ãã« 0 ã®ããã¯ã¢ããããéå§ãã¾ããä¾ãã°ä»¥ä¸ã®éãã§ãã

                     /sbin/dump -0u -f /dev/nsa0 /usr/src

               ãããä¸ãµæãäºãµææ¯ã«æ°ãããã¼ãã«å¯¾ãã¦å®æ½ãã ãã£ã¨ä¿åãã¾ãã

           ·   0 ã¬ãã«ã®ãã³ãã®å¾ã¯ãã¢ã¯ãã£ããªãã¡ã¤ã«ã·ã¹ãã
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               使ãããäºã«ãªãä¸å®æ°ã®ãã¼ãã使ãã¾ãã

     ä½ãµæãã®å¾ãæ¯æ¥ã¨æ¯é±ã®ãã¼ãã¯ãã³ããµã¤ã¯ã«ããé ã«å¤ãã
     æ°åã®ãã¼ããå°å¥ãã¹ãã§ãã

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     TAPE  ããã¯ã¢ãããèªã¿åãããã¤ã¹ã

     RMT   ãªã¢ã¼ãã® rmt(8) ããã°ã©ã ã®ãã¹åã

     RSH   rsh(1) ã§ãªãå ´åã®ãªã¢ã¼ãã·ã§ã«ããã°ã©ã ã®ãã¹åã

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     /dev/sa0        ããã©ã«ãã®ãã³ããã¼ãã¦ããã
     /etc/dumpdates  ãã³ãã®æ¥ä»ãè¨é²ãããã¡ã¤ã« (ããã¯å¤æ´å¯è½ã§ãã -D
                     ãªãã·ã§ã³ãåç§ãã¦ãã ãã)
     /etc/fstab      ãã³ããã¼ãã« : ãã¡ã¤ã«ã·ã¹ãã ã¨é »åº¦ã決ãããã¡ã¤ã«
     /etc/group      operator ã°ã«ã¼ããæ¤ç´¢ãã

é¢é£é ç®
     chflags(1), fstab(5), restore(8), rmt(8)

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     詳ããã¡ãã»ã¼ã¸ãããããåºã¾ãã

     æ£å¸¸æã¯çµäºã³ã¼ã 0 ã§çµäºãã¾ãã éå§æã®ã¨ã©ã¼ã¯çµäºã³ã¼ã 1 ã§ã
     ç°å¸¸çµäºã¯çµäºã³ã¼ã 3 ã§è¡¨ããã¾ãã

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     ã®ãã¼ãã£ã·ã§ã³ããã³ãããã¨ãã dump å®è¡ä¸ã«ãã¡ã¤ã«ã·ã¹ãã ãæ´æ°ãããã¨ã èª‐
     ã¿åãã¨ã©ã¼ãçãå¾ã¾ãã ãã³ãã¯ãã°ãã° cron(8)
     ã使ã£ã¦äººãå±ãªãç¶æ³ã§è¡ããã¾ãã®ã§ã ãªãã¬ã¼ã¿ã®ä»å¥ãè¦ããä»äºã¯ dump
     ãé§ç®ã«ãã¦ãã¾ãã¾ãã ãã®ç¨®ã®èªã¿åãã¨ã©ã¼çºçæã«ã¯
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