{"id":334,"date":"2023-02-02T17:35:02","date_gmt":"2023-02-02T09:35:02","guid":{"rendered":"https:\/\/chih-hao.synology.me\/wordpress\/?p=334"},"modified":"2023-02-02T17:41:44","modified_gmt":"2023-02-02T09:41:44","slug":"linux-%e7%b8%ae%e5%b0%8f%e7%a3%81%e7%a2%9f%e5%bd%b1%e5%83%8f%e6%aa%94%e6%95%99%e5%ad%b8%ef%bc%8c%e8%a7%a3%e6%b1%ba%e5%9b%9e%e5%be%a9-microsd-%e5%8d%a1%e7%a9%ba%e9%96%93%e4%b8%8d%e8%b6%b3%e5%95%8f","status":"publish","type":"post","link":"https:\/\/wp.chih-hao.synology.me\/?p=334","title":{"rendered":"Linux \u7e2e\u5c0f\u78c1\u789f\u5f71\u50cf\u6a94\u6559\u5b78\uff0c\u89e3\u6c7a\u56de\u5fa9 MicroSD \u5361\u7a7a\u9593\u4e0d\u8db3\u554f\u984c"},"content":{"rendered":"\n

\u5efa\u7acb Loopback \u8a2d\u5099<\/h2>\n\n\n\n

\u82e5\u60f3\u8981\u4fee\u6539\u78c1\u789f\u5206\u5272\u8868\uff0c\u5c31\u5fc5\u9808\u5148\u8b93 Linux \u6838\u5fc3\u8f09\u5165\u78c1\u789f\uff0c\u624d\u80fd\u4f7f\u7528\u5404\u7a2e\u78c1\u789f\u5206\u5272\u5de5\u5177\u4f86\u4fee\u6539\uff0c\u4f46\u662f\u73fe\u5728\u6211\u5011\u7684\u78c1\u789f\u4e0d\u662f\u4e00\u822c\u7684\u5be6\u9ad4\u78c1\u789f\uff0c\u800c\u662f\u4e00\u500b\u5f71\u50cf\u6a94\uff0c\u82e5\u8981\u8b93 Linux \u6838\u5fc3\u53ef\u4ee5\u8f09\u5165\u9019\u500b\u78c1\u789f\uff0c\u5c31\u5fc5\u9808\u4f7f\u7528 loopback \u8a2d\u5099\u4f86\u8655\u7406\u3002<\/p>\n\n\n\n

\u9996\u5148\u555f\u7528 Linux \u6838\u5fc3 \u7684 loopback \u6a21\u7d44\uff1a<\/p>\n\n\n\n

sudo modprobe loop<\/pre>\n\n\n\n
\u63a5\u8457\u627e\u5c0b\u5c1a\u672a\u88ab\u4f7f\u7528\u7684 loopback \u8a2d\u5099\uff1a<\/p>\n\n\n\n
sudo losetup -f<\/pre>\n\n\n\n
\/dev\/loop0<\/pre>\n\n\n\n
\u9019\u500b\u8f38\u51fa\u8868\u793a \/dev\/loop0 \u9019\u500b\u8a2d\u5099\u5c1a\u672a\u88ab\u4f7f\u7528\uff0c\u6240\u4ee5\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u9019\u500b\u540d\u7a31\u4f86\u5efa\u7acb\u4e00\u500b\u5f71\u50cf\u6a94\u7684 loopback \u8a2d\u5099\uff1a<\/p>\n\n\n\n
sudo losetup \/dev\/loop0 my_image.img<\/pre>\n\n\n\n
\u5176\u4e2d my_image.img \u5c31\u662f\u5f9e MicroSD \u5361\u5099\u4efd\u4e0b\u4f86\u7684\u5f71\u50cf\u6a94\uff0c\u73fe\u5728 \/dev\/loop0 \u5c31\u4ee3\u8868\u4e86 my_image.img \u5f71\u50cf\u6a94\u4e2d\u7684\u78c1\u789f\uff0c\u63a5\u8457\u8981\u8b93 Linux \u6838\u5fc3\u4e5f\u8f09\u5165\u9019\u500b\u78c1\u789f\uff1a<\/p>\n\n\n\n
sudo partprobe \/dev\/loop0<\/pre>\n\n\n\n
\u9019\u6642\u5019\u5728\u7cfb\u7d71\u4e0a\u61c9\u8a72\u5c31\u53ef\u4ee5\u770b\u5f97\u5230\u9019\u500b\u78c1\u789f\u4e86\uff08\u4f46\u662f\u61c9\u8a72\u662f\u8655\u65bc\u672a\u639b\u8f09\u7684\u72c0\u614b\uff09\u3002<\/p>\n\n\n\n
\u8abf\u6574\u5206\u5272\u5340
\u5728\u4f7f\u7528 loopback \u8f09\u5165\u5f71\u50cf\u6a94\u4e2d\u7684\u7684\u78c1\u789f\u4e4b\u5f8c\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u666e\u901a\u7684\u78c1\u789f\u5de5\u5177\u4f86\u4fee\u6539\u5b83\u4e86\u3002<\/p>\n\n\n\n
\u4e00\u958b\u59cb\u8981\u8abf\u6574\u5206\u5272\u5340\u7684\u5927\u5c0f\uff0c\u8b93\u78c1\u789f\u672b\u7aef\u9a30\u51fa\u4e00\u4e9b\u7a7a\u9593\uff0c\u9019\u500b\u52d5\u4f5c\u53ef\u4ee5\u4f7f\u7528 GParted \u7684\u64cd\u4f5c\u4ecb\u9762\u4f86\u8655\u7406\uff1a<\/p>\n\n\n\n
sudo gparted \/dev\/loop0<\/pre>\n\n\n\n
\u539f\u672c\u7684\u78c1\u789f\u5206\u5272\u72c0\u614b\u6703\u985e\u4f3c\u9019\u6a23\uff0c\u6574\u500b\u78c1\u789f\u5e7e\u4e4e\u90fd\u7528\u6eff\u4e86\uff0c\u4f46\u67d0\u4e9b\u5206\u5272\u5340\u88e1\u9762\u9084\u6709\u4e9b\u7a7a\u9593\uff1a<\/p>\n\n\n\n
\u78c1\u789f\u5206\u5272\u8868<\/p>\n\n\n\n
\u4f7f\u7528 GParted \u7684\u4ecb\u9762\u8abf\u6574\u4e00\u4e0b\u5206\u5272\u5340\u7684\u5927\u5c0f\u6216\u4f4d\u7f6e\uff0c\u8b93\u78c1\u789f\u672b\u7aef\u9a30\u51fa\u4e00\u4e9b\u7a7a\u9593\uff0c\u901a\u5e38\u9019\u500b\u7a7a\u9593\u4e5f\u4e0d\u9700\u8981\u5f88\u5927\uff0c\u5c31\u770b\u5f71\u50cf\u6a94\u7684\u5927\u5c0f\u8207 MicroSD \u5361\u7684\u5bb9\u91cf\u76f8\u5dee\u591a\u5c11\uff0c\u5c31\u9a30\u51fa\u591a\u5c11\u5373\u53ef\uff0c\u5982\u679c\u78c1\u789f\u5206\u5272\u5340\u5167\u7684\u8cc7\u6599\u5f88\u5c11\uff0c\u591a\u9a30\u51fa\u4e00\u9ede\u7a7a\u9593\u4e5f\u6c92\u6709\u95dc\u4fc2\uff1a<\/p>\n\n\n\n
\u78c1\u789f\u5206\u5272\u8868<\/p>\n\n\n\n
\u4f7f\u7528 GParted \u8abf\u6574\u78c1\u789f\u5206\u5272\u5340\u6642\uff0c\u7d50\u679c\u6703\u76f4\u63a5\u5beb\u5165\u6211\u5011\u7684\u5f71\u50cf\u6a94\uff0c\u4fee\u6539\u597d\u5f71\u50cf\u6a94\u4e4b\u5f8c\uff0c\u5373\u53ef\u5378\u8f09 loopback \u8a2d\u5099\uff1a<\/p>\n\n\n\n
sudo losetup -d \/dev\/loop0<\/pre>\n\n\n\n
\u88c1\u526a\u5f71\u50cf\u6a94
\u73fe\u5728\u6211\u5011\u7684\u5f71\u50cf\u6a94\u7684\u72c0\u614b\u61c9\u8a72\u5c31\u6703\u50cf GParted \u4ecb\u9762\u4e2d\u986f\u793a\u7684\u90a3\u6a23\uff0c\u672b\u7aef\u662f\u6c92\u6709\u4f7f\u7528\u7684\u7a7a\u9593\uff0c\u6700\u5f8c\u53ea\u8981\u5c07\u90a3\u6bb5\u6c92\u7528\u7684\u7a7a\u9593\u88c1\u526a\u6389\u5373\u53ef\u3002<\/p>\n\n\n\n
\u9996\u5148\u4ee5 fdisk \u6aa2\u67e5\u5f71\u50cf\u6a94\u5167\u90e8\u4f7f\u7528\u7684\u72c0\u6cc1\uff1a<\/p>\n\n\n\n
\n
fdisk -l my_image.img
Disk my_image.img: 14.9 GiB, 15987638272 bytes, 31225856 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical\/physical): 512 bytes \/ 512 bytes
I\/O size (minimum\/optimal): 512 bytes \/ 512 bytes
Disklabel type: dos
Disk identifier: 0x03ca9076<\/p>\n\n\n\n
Device Boot Start End Sectors Size Id Type
my_image.img1 8192 96453 88262 43.1M c W95 FAT32 (LBA)
my_image.img2 98304 27054079 26955776 12.9G 83 Linux<\/p>\n<\/div><\/div>\n\n\n\n
\u5f9e\u9019\u500b\u8f38\u51fa\u4e2d\u53ef\u4ee5\u770b\u51fa\u6bcf\u500b\u5206\u5272\u5340\u5728\u78c1\u789f\u4e2d\u7684\u958b\u59cb\u4f4d\u7f6e\uff08Start\uff09\u8207\u7d50\u675f\u4f4d\u7f6e\uff08End\uff09\uff0c\u6700\u5f8c\u4e00\u500b\u5206\u5272\u5340\u7d50\u675f\u7684\u4f4d\u7f6e\u662f 26955776\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728\u9019\u500b\u4f4d\u7f6e\u4e4b\u5f8c\u7684\u7a7a\u9593\uff0c\u5c31\u662f\u6c92\u6709\u4f7f\u7528\u5230\u7684\u90e8\u4efd\uff0c\u4e5f\u5c31\u662f\u53ef\u4ee5\u88c1\u526a\u6389\u7684\u90e8\u4efd\u3002<\/p>\n\n\n\n
\u9019\u88e1\u7684\u8f38\u51fa\u4e2d\u4e5f\u6709\u8aaa\u660e\u4e00\u500b sector \u7684\u5927\u5c0f\u662f 512 \u4f4d\u5143\u7d44\uff08bytes\uff09\uff0c\u800c sector \u7684\u8a08\u7b97\u65b9\u5f0f\u662f\u5f9e 0 \u958b\u59cb\u8d77\u7b97\u7684\uff0c\u6240\u4ee5\u6574\u500b\u78c1\u789f\u5f9e\u958b\u982d\u7b97\u8d77\uff0c\u4e00\u76f4\u5230\u6709\u8cc7\u6599\u7684\u6700\u672b\u7aef\uff0c\u7e3d\u5171\u7684\u5927\u5c0f\u61c9\u8a72\u662f (26955776+1)*512 \u4f4d\u5143\u7d44\uff08bytes\uff09\u3002<\/p>\n\n\n\n
\u8a08\u7b97\u51fa\u8cc7\u6599\u5728\u78c1\u789f\u4e2d\u6700\u672b\u7aef\u7684\u4f4d\u7f6e\u4e4b\u5f8c\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528 truncate \u88c1\u526a\u5f71\u50cf\u6a94\uff0c\u53ea\u7559\u4e0b\u524d\u9762\u6709\u8cc7\u6599\u7684\u90e8\u4efd\uff1a<\/p>\n\n\n\n
# \u88c1\u526a\u5f71\u50cf\u6a94
truncate --size=$[(27054079+1)*512] my_image.img<\/pre>\n\n\n\n
\u88c1\u526a\u5f71\u50cf\u6a94\u5fc5\u9808\u5f88\u8b39\u614e\uff0c\u842c\u4e00\u5f04\u932f\u8cc7\u6599\u5c31\u6bc0\u4e86\uff0c\u82e5\u662f\u4e0d\u78ba\u5b9a\u7684\u8a71\uff0c\u8a18\u5f97\u5148\u5099\u4efd\u5f71\u50cf\u6a94\uff0c\u4ee5\u514d\u51fa\u932f\u9020\u6210\u8cc7\u6599\u640d\u6bc0\u6551\u4e0d\u56de\u4f86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5efa\u7acb Loopback \u8a2d\u5099 \u82e5\u60f3\u8981\u4fee\u6539\u78c1\u789f\u5206\u5272\u8868\uff0c\u5c31\u5fc5\u9808\u5148…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-334","post","type-post","status-publish","format-standard","hentry","category-9"],"_links":{"self":[{"href":"https:\/\/wp.chih-hao.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.chih-hao.synology.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.chih-hao.synology.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.chih-hao.synology.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.chih-hao.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=334"}],"version-history":[{"count":1,"href":"https:\/\/wp.chih-hao.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/334\/revisions"}],"predecessor-version":[{"id":335,"href":"https:\/\/wp.chih-hao.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/334\/revisions\/335"}],"wp:attachment":[{"href":"https:\/\/wp.chih-hao.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.chih-hao.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.chih-hao.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}