{"id":350,"date":"2011-05-30T19:42:14","date_gmt":"2011-05-30T19:42:14","guid":{"rendered":""},"modified":"2013-02-07T12:10:29","modified_gmt":"2013-02-07T04:10:29","slug":"umount%e5%91%bd%e4%bb%a4%e8%af%a6%e7%bb%86%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/ybzx.vip\/wp\/?p=350","title":{"rendered":"umount\u547d\u4ee4\u8be6\u7ec6\u89e3"},"content":{"rendered":"

\u529f\u80fd\u8bf4\u660e\uff1a\u5378\u9664\u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n

\u8bed\u3000\u3000\u6cd5\uff1aumount [-ahnrvV][-t <\u6587\u4ef6\u7cfb\u7edf\u7c7b\u578b>][\u6587\u4ef6\u7cfb\u7edf]<\/p>\n

\u8865\u5145\u8bf4\u660e\uff1aumount\u53ef\u5378\u9664\u76ee\u524d\u6302\u5728Linux\u76ee\u5f55\u4e2d\u7684\u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n

\u53c2\u3000\u3000\u6570\uff1a
  -a   \u5378\u9664\/etc\/mtab\u4e2d\u8bb0\u5f55\u7684\u6240\u6709\u6587\u4ef6\u7cfb\u7edf\u3002
  -h   \u663e\u793a\u5e2e\u52a9\u3002
  -n   \u5378\u9664\u65f6\u4e0d\u8981\u5c06\u4fe1\u606f\u5b58\u5165\/etc\/mtab\u6587\u4ef6\u4e2d\u3002
  -r   \u82e5\u65e0\u6cd5\u6210\u529f\u5378\u9664\uff0c\u5219\u5c1d\u8bd5\u4ee5\u53ea\u8bfb\u7684\u65b9\u5f0f\u91cd\u65b0\u6302\u5165\u6587\u4ef6\u7cfb\u7edf\u3002
  -t<\u6587\u4ef6\u7cfb\u7edf\u7c7b\u578b>   \u4ec5\u5378\u9664\u9009\u9879\u4e2d\u6240\u6307\u5b9a\u7684\u6587\u4ef6\u7cfb\u7edf\u3002
  -v   \u6267\u884c\u65f6\u663e\u793a\u8be6\u7ec6\u7684\u4fe1\u606f\u3002
  -V   \u663e\u793a\u7248\u672c\u4fe1\u606f\u3002
  [\u6587\u4ef6\u7cfb\u7edf]   \u9664\u4e86\u76f4\u63a5\u6307\u5b9a\u6587\u4ef6\u7cfb\u7edf\u5916\uff0c\u4e5f\u53ef\u4ee5\u7528\u8bbe\u5907\u540d\u79f0\u6216\u6302\u5165\u70b9\u6765\u8868\u793a\u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n

\u4f7f\u7528umount\u547d\u4ee4\u53ef\u4ee5\u5378\u8f7d\u6587\u4ef6\u7cfb\u7edf\u3002\u5229\u7528\u8bbe\u5907\u540d\u6216\u6302\u8f7d\u70b9\u90fd\u80fdumount\u6587\u4ef6\u7cfb\u7edf\uff0c\u4e0d\u8fc7\u6700\u597d\u8fd8\u662f\u901a\u8fc7\u6302\u8f7d\u70b9\u5378\u8f7d\uff0c\u4ee5\u514d\u4f7f\u7528\u7ed1\u5b9a\u6302\u8f7d\uff08\u4e00\u4e2a\u8bbe\u5907\uff0c\u591a\u4e2a\u6302\u8f7d\u70b9\uff09\u65f6\u4ea7\u751f\u6df7\u4e71\u3002\u4e0b\u9762\u4e24\u6761\u547d\u4ee4\u5206\u522b\u901a\u8fc7\u8bbe\u5907\u540d\u548c\u6302\u8f7d\u70b9\u5378\u8f7d\u6587\u4ef6\u7cfb\u7edf\uff0c\u540c\u65f6\u8f93\u51fa\u8be6\u7ec6\u4fe1\u606f\uff1a<\/p>\n

1.# umount -v \/dev\/sda1          \u901a\u8fc7\u8bbe\u5907\u540d\u5378\u8f7d <\/p>\n

2.\/dev\/sda1 umounted <\/p>\n

3.# umount -v \/mnt\/mymount\/      \u901a\u8fc7\u6302\u8f7d\u70b9\u5378\u8f7d <\/p>\n

4.\/tmp\/diskboot.img umounted <\/p>\n

\u5982\u679c\u8bbe\u5907\u6b63\u5fd9\uff0c\u5378\u8f7d\u5373\u544a\u5931\u8d25\u3002\u5378\u8f7d\u5931\u8d25\u7684\u5e38\u89c1\u539f\u56e0\u662f\uff0c\u67d0\u4e2a\u6253\u5f00\u7684shell\u5f53\u524d\u76ee\u5f55\u4e3a\u6302\u8f7d\u70b9\u91cc\u7684\u67d0\u4e2a\u76ee\u5f55\uff1a<\/p>\n

# umount -v \/mnt\/mymount\/  
umount: \/mnt\/mymount: device is busy  
umount: \/mnt\/mymount: device is busy <\/p>\n

\u6709\u65f6\uff0c\u5bfc\u81f4\u8bbe\u5907\u5fd9\u7684\u539f\u56e0\u5e76\u4e0d\u597d\u627e\u3002\u78b0\u5230\u8fd9\u79cd\u60c5\u51b5\u65f6\uff0c\u53ef\u4ee5\u7528lsof\u5217\u51fa\u5df2\u6253\u5f00\u6587\u4ef6\uff0c\u7136\u540e\u641c\u7d22\u5217\u8868\u67e5\u627e\u5f85\u5378\u8f7d\u7684\u6302\u8f7d\u70b9\uff1a<\/p>\n

# lsof | grep mymount         \u67e5\u627emymount\u5206\u533a\u91cc\u6253\u5f00\u7684\u6587\u4ef6  
bash   9341  francois  cwd   DIR   8,1   1024    2 \/mnt\/mymount <\/span><\/p>\n

\u4ece\u4e0a\u9762\u7684\u8f93\u51fa\u53ef\u77e5\uff0cmymount\u5206\u533a\u65e0\u6cd5\u5378\u8f7d\u7684\u539f\u56e0\u5728\u4e8e\uff0cfrancois\u8fd0\u884c\u7684PID\u4e3a9341\u7684bash\u8fdb\u7a0b\u3002<\/p>\n

\u5bf9\u4ed8\u7cfb\u7edf\u6587\u4ef6\u6b63\u5fd9\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u6267\u884c\u5ef6\u8fdf\u5378\u8f7d\uff1a<\/p>\n

# umount -vl \/mnt\/mymount\/     \u6267\u884c\u5ef6\u8fdf\u5378\u8f7d
\u5ef6\u8fdf\u5378\u8f7d\uff08lazy unmount\uff09\u4f1a\u7acb\u5373\u5378\u8f7d\u76ee\u5f55\u6811\u91cc\u7684\u6587\u4ef6\u7cfb\u7edf\uff0c\u7b49\u5230\u8bbe\u5907\u4e0d\u518d\u7e41\u5fd9\u65f6\u624d\u6e05\u7406\u6240\u6709\u76f8\u5173\u8d44\u6e90\u3002\u5378\u8f7d\u53ef\u79fb\u52a8\u5b58\u50a8\u4ecb\u8d28\u8fd8\u53ef\u4ee5\u7528eject\u547d\u4ee4\u3002\u4e0b\u9762\u8fd9\u6761\u547d\u4ee4\u4f1a\u5378\u8f7dCD\u5e76\u5f39\u51faCD\uff1a<\/p>\n

# eject \/dev\/cdrom      \u5378\u8f7d\u5e76\u5f39\u51faCD <\/p>\n

\u8f6c\u8f7d\u8bf7\u52a1\u5fc5\u6ce8\u660e\u539f\u6587:http:\/\/www.linuxso.com\/command\/umount.html<\/p>\n","protected":false},"excerpt":{"rendered":"

\u529f\u80fd\u8bf4\u660e\uff1a\u5378\u9664\u6587\u4ef6\u7cfb\u7edf\u3002 \u8bed\u3000\u3000\u6cd5\uff1aumount [-ahnrvV][-t ][\u6587\u4ef6\u7cfb\u7edf] \u8865\u5145\u8bf4\u660e\uff1aumou … \u7ee7\u7eed\u9605\u8bfbumount\u547d\u4ee4\u8be6\u7ec6\u89e3<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[117],"tags":[78],"class_list":["post-350","post","type-post","status-publish","format-standard","hentry","category-network","tag-linux"],"_links":{"self":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts\/350","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=350"}],"version-history":[{"count":0,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts\/350\/revisions"}],"wp:attachment":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}