{"id":184,"date":"2026-05-13T09:40:23","date_gmt":"2026-05-13T01:40:23","guid":{"rendered":"https:\/\/junai.ai\/blog\/linux-disk-management-15\/"},"modified":"2026-05-13T09:40:23","modified_gmt":"2026-05-13T01:40:23","slug":"linux-disk-management-15","status":"publish","type":"post","link":"https:\/\/junai.ai\/blog\/linux-disk-management-15\/","title":{"rendered":"\ub9ac\ub205\uc2a4 \ub514\uc2a4\ud06c \uad00\ub9ac \u2014 df\u00b7du\u00b7lsblk\ub85c \uc6a9\ub7c9 \ucc3e\uae30 (15\ud3b8)"},"content":{"rendered":"\n<!-- WordPress REST API \ubc1c\ud589\uc6a9 HTML (\uc790\ub3d9 \uc0dd\uc131) -->\n<!-- WP-FEATURED-MEDIA-ID: 174 -->\n<div style=\"max-width:800px;margin:0 auto;\">\n<style>\n:root{\n  --color-primary:#1e40af;--color-accent:#3b82f6;--color-bg:#fafafa;--color-bg-card:#ffffff;\n  --color-text:#1e293b;--color-text-muted:#64748b;--hero-start:#0f172a;--hero-end:#1e40af;\n  --font-body:-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Noto Sans KR',sans-serif;\n  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50px;text-align:center;color:var(--color-text-muted);font-size:13.5px;}\n@media (max-width:480px){:root{--h1-size:22px;--h2-size:20px;--size-body:16px;}.hero{padding:48px 0 40px;}article{padding:34px 0 16px;}.cmd{font-size:12.5px;}}\n<\/style>\n<header class=\"hero\">\n  <div class=\"wrap\">\n    <span class=\"eyebrow\">\uc6b0\ubd84\ud22c \u00b7 \ub9ac\ub205\uc2a4 \uc785\ubb38 \u2014 15\ud3b8 (\uc911\uae09)<\/span>\n    <h1>\ub9ac\ub205\uc2a4 \ub514\uc2a4\ud06c \uad00\ub9ac \u2014 df\u00b7du\u00b7lsblk\ub85c \uc6a9\ub7c9 \ucc3e\uae30<\/h1>\n    <p class=\"sub\">&#8220;\ub514\uc2a4\ud06c \uacf5\uac04\uc774 \ubd80\uc871\ud569\ub2c8\ub2e4&#8221; \uc54c\ub9bc\uc774 \ub5b4\uc744 \ub54c, \ubb50\uac00 \ub2e4 \uc7a1\uc544\uba39\uc5c8\ub294\uc9c0 \ucc3e\uc544 \ube44\uc6b0\ub294 \ubc95. \uadf8\ub9ac\uace0 USB\u00b7\uc678\uc7a5\ud558\ub4dc\ub97c \uc548\uc804\ud558\uac8c \ub2e4\ub8e8\uae30.<\/p>\n    <p class=\"meta\">2026\ub144 5\uc6d4 13\uc77c \u00b7 \uc57d 8\ubd84 \u00b7 26\ud3b8 \uc785\ubb38 \uc2dc\ub9ac\uc988 15\ud3b8<\/p>\n  <\/div>\n<\/header>\n\n<img decoding=\"async\" class=\"hero-img\" src=\"https:\/\/junai.ai\/blog\/wp-content\/uploads\/2026\/05\/hero-18.jpg\" alt=\"\ud130\ubbf8\ub110\uc5d0 df\u00b7du\u00b7lsblk \uba85\ub839\uc73c\ub85c \ub514\uc2a4\ud06c \uc0ac\uc6a9\ub7c9\uc744 \ubcf4\ub294 \ud654\uba74 \u2014 \ub9ac\ub205\uc2a4 \ub514\uc2a4\ud06c \uad00\ub9ac\ub97c \uc0c1\uc9d5\ud558\ub294 \uc77c\ub7ec\uc2a4\ud2b8\">\n\n<div class=\"wrap\">\n<article>\n\n  <div class=\"intro\">\n    <p>5\ud3b8\uc5d0\uc11c &#8220;\ub9ac\ub205\uc2a4\uc5d4 C: \ub4dc\ub77c\uc774\ube0c\uac00 \uc5c6\uace0 \ubaa8\ub4e0 \uac8c <code>\/<\/code> \uc544\ub798 \ub9e4\ub2ec\ub9b0\ub2e4&#8221;\uace0 \ud588\uc8e0. USB\ub97c \uaf42\uc73c\uba74 <code>\/media\/\uc774\ub984\/USB<\/code> \uac19\uc740 \ud3f4\ub354\ub85c \ub098\ud0c0\ub09c\ub2e4\uace0\ub3c4 \ud588\uace0\uc694. \uc774\ubc88 \ud3b8\uc740 \uadf8 \ub514\uc2a4\ud06c\ub4e4\uc744 <strong>\ub4e4\uc5ec\ub2e4\ubcf4\uace0\u00b7\uc7ac\uace0 \uad00\ub9ac\ud558\ub294<\/strong> \ubc95\uc785\ub2c8\ub2e4 \u2014 \ud2b9\ud788 &#8220;\uacf5\uac04 \ubd80\uc871&#8221; \uacbd\uace0\uac00 \ub5b4\uc744 \ub54c \ubc94\uc778\uc744 \ucc3e\uc544 \ube44\uc6b0\ub294 \uac83.<\/p>\n    <p>\ud575\uc2ec \ub3c4\uad6c \uc14b \u2014 <strong><code>lsblk<\/code><\/strong>(\ub514\uc2a4\ud06c\u00b7\ud30c\ud2f0\uc158\uc774 \uc5b4\ub5bb\uac8c \uc0dd\uacbc\ub098), <strong><code>df<\/code><\/strong>(\ud30c\uc77c\uc2dc\uc2a4\ud15c\ubcc4\ub85c \uc5bc\ub9c8\ub098 \ucc3c\ub098), <strong><code>du<\/code><\/strong>(\uc5b4\ub290 \ud3f4\ub354\uac00 \uc5bc\ub9c8\ub098 \uba39\ub098). \uc708\ub3c4\uc6b0\uc5d0\uc11c &#8220;\ub0b4 PC \uc6b0\ud074\ub9ad \u2192 \uc18d\uc131&#8221;\uc73c\ub85c \ubcf4\ub358 \uac78, \uadf8\ub9ac\uace0 &#8220;\ub514\uc2a4\ud06c \uc815\ub9ac&#8221;\ub85c \ube44\uc6b0\ub358 \uac78 \uba85\ub839\uc5b4\ub85c \ud569\ub2c8\ub2e4. <strong>26\ud3b8 \uc785\ubb38 \uc2dc\ub9ac\uc988 15\ud3b8<\/strong>, &#8220;\uc911\uae09&#8221; \ubb36\uc74c. \ubcf4\ub294 \uba85\ub839\uc740 \ub2e4 \uc548\uc804\ud558\uace0, \ube44\uc6b0\ub294 \uac74 \uc2e0\uc911\ud788 \uc9da\uc5b4\ub4dc\ub9b4\uac8c\uc694.<\/p>\n  <\/div>\n\n  <div class=\"notice\">\n    <b>\uc900\ube44\ubb3c \u2014<\/b> \uc6b0\ubd84\ud22c + \ud130\ubbf8\ub110. 5\ud3b8(\ub514\ub809\ud1a0\ub9ac \uad6c\uc870)\u00b714\ud3b8(\ud504\ub85c\uc138\uc2a4)\uc744 \ubd24\ub2e4\uba74 \uc790\uc5f0\uc2a4\ub7fd\uac8c \uc774\uc5b4\uc9d1\ub2c8\ub2e4. \ub514\uc2a4\ud06c &#8216;\ubcf4\uae30&#8217;\ub294 \ub2e4 \uc548\uc804 \u2014 \uac00\uc0c1 \uba38\uc2e0\uc774\uba74 \ub9c8\uc6b4\ud2b8\u00b7\uc5b8\ub9c8\uc6b4\ud2b8 \uc2e4\ud5d8\ub3c4 \ubd80\ub2f4 \uc5c6\uc5b4\uc694.\n  <\/div>\n\n  <h2>\ub514\uc2a4\ud06c\uac00 \uc5b4\ub5bb\uac8c \ubcf4\uc774\ub098 \u2014 lsblk\uc640 \ub9c8\uc6b4\ud2b8<\/h2>\n  <p>\uba3c\uc800 &#8220;\uc774 \ucef4\ud4e8\ud130\uc5d0 \uc5b4\ub5a4 \uc800\uc7a5\uc7a5\uce58\uac00, \uc5b4\ub5bb\uac8c \ucabc\uac1c\uc838, \uc5b4\ub514\uc5d0 \uc5f0\uacb0\ub3fc \uc788\ub098&#8221;\ub97c \ubd05\ub2c8\ub2e4.<\/p>\n  <div class=\"cmd\"><span class=\"c\">$<\/span> lsblk\n<span class=\"o\">NAME    SIZE  TYPE  MOUNTPOINT<\/span>\n<span class=\"o\">sda     256G  disk<\/span>\n<span class=\"o\">\u251c\u2500sda1  512M  part  \/boot\/efi      \u2190 \ubd80\ud305\uc6a9 \ud30c\ud2f0\uc158<\/span>\n<span class=\"o\">\u2514\u2500sda2  255G  part  \/              \u2190 \uba54\uc778 \ud30c\uc77c\uc2dc\uc2a4\ud15c(\ub8e8\ud2b8)\uc774 \uc5ec\uae30 \ub4e4\uc5b4\uc788\uc74c<\/span>\n<span class=\"o\">sdb      32G  disk<\/span>\n<span class=\"o\">\u2514\u2500sdb1   32G  part  \/media\/jspark\/USB   \u2190 \uaf42\uc740 USB<\/span>\n<span class=\"o\">                          \u2190 \ub514\uc2a4\ud06c(disk) \uc548\uc5d0 \ud30c\ud2f0\uc158(part)\ub4e4, \uac01\uac01 &#8216;\uc5b4\ub290 \ud3f4\ub354\uc5d0 \uc5f0\uacb0(mount)\ub410\ub294\uc9c0&#8217;<\/span><\/div>\n  <p>\uc77d\ub294 \ubc95: <strong>\ub514\uc2a4\ud06c<\/strong>(<code>sda<\/code>\u00b7<code>sdb<\/code>\u2026 \u2014 \ubb3c\ub9ac\uc801 \uc800\uc7a5\uc7a5\uce58 \ud558\ub098) \u2192 \uadf8 \uc548\uc758 <strong>\ud30c\ud2f0\uc158<\/strong>(<code>sda1<\/code>\u00b7<code>sda2<\/code>\u2026 \u2014 \ub514\uc2a4\ud06c\ub97c \ucabc\uac20 \uce78) \u2192 \uac01 \ud30c\ud2f0\uc158\uc774 <strong>\uc5b4\ub290 \ud3f4\ub354\uc5d0 \ub9c8\uc6b4\ud2b8<\/strong>\ub410\ub294\uc9c0(<code>MOUNTPOINT<\/code>). &#8220;\ub9c8\uc6b4\ud2b8(mount)&#8221;\ub294 &#8220;\uc774 \ud30c\ud2f0\uc158\uc758 \ub0b4\uc6a9\uc744 \uc774 \ud3f4\ub354\uc5d0\uc11c \ubcf4\uc774\uac8c \ud55c\ub2e4&#8221;\ub294 \ub73b\uc774\uc5d0\uc694 \u2014 \uadf8\ub798\uc11c <code>\/<\/code>\uc5d0 \ub9c8\uc6b4\ud2b8\ub41c \ud30c\ud2f0\uc158 \uc548\uc5d0 \uc6b0\ub9ac \uc2dc\uc2a4\ud15c \uc804\uccb4\uac00 \ub4e4\uc5b4 \uc788\uace0, USB\ub294 <code>\/media\/...<\/code>\uc5d0\uc11c \ubcf4\uc774\ub294 \uac70\uc8e0. (\uc694\uc998 \uc6b0\ubd84\ud22c\ub294 NVMe SSD\uba74 <code>nvme0n1<\/code>\u00b7<code>nvme0n1p2<\/code> \uc2dd \uc774\ub984\uc774 \ub098\uc624\uae30\ub3c4 \u2014 \uc6d0\ub9ac\ub294 \uac19\uc74c.) <code>findmnt<\/code>\ub97c \uce58\uba74 \ub9c8\uc6b4\ud2b8 \uad00\uacc4\ub9cc \ud2b8\ub9ac\ub85c \uae54\ub054\ud558\uac8c \ubcf4\uc785\ub2c8\ub2e4.<\/p>\n\n  <h2>\uacf5\uac04\uc774 \uc5bc\ub9c8\ub098 \u2014 df\uc640 du<\/h2>\n  <p>&#8220;\uc6a9\ub7c9\uc774 \ubd80\uc871\ud558\ub2e4&#8221;\ub294 \uc774 \ub450 \uba85\ub839\uc73c\ub85c \ucd94\uc801\ud569\ub2c8\ub2e4. \ub458\uc758 \ucc28\uc774\uac00 \uc911\uc694\ud574\uc694.<\/p>\n  <div class=\"cmd\"><span class=\"c\">$<\/span> df -h\n<span class=\"o\">Filesystem  Size  Used  Avail  Use%  Mounted on<\/span>\n<span class=\"o\">\/dev\/sda2   255G  198G   44G   82%   \/          \u2190 \ub8e8\ud2b8(\/)\uac00 82% \ucc3c\ub2e4. \uc5ec\uc720 44G<\/span>\n<span class=\"o\">\/dev\/sda1   512M   30M  482M    6%   \/boot\/efi<\/span>\n<span class=\"o\">                          \u2190 df = &#8216;\ud30c\uc77c\uc2dc\uc2a4\ud15c\ubcc4&#8217; \uc0ac\uc6a9 \ud604\ud669. -h = \uc0ac\ub78c \uc77d\uae30 \uc88b\uac8c(G\/M). &#8220;\uc5b4\ub290 \ub514\uc2a4\ud06c\uac00 \ucc3c\ub098&#8221;<\/span>\n\n<span class=\"c\">$<\/span> du -sh ~\/\n<span class=\"o\">42G   \/home\/jspark           \u2190 du -sh = \uadf8 &#8216;\ud3f4\ub354 \uc804\uccb4&#8217;\uac00 \ucc28\uc9c0\ud558\ub294 \uc6a9\ub7c9. -s \ud569\uacc4\ub9cc, -h \ubcf4\uae30 \uc88b\uac8c<\/span>\n<span class=\"c\">$<\/span> du -sh ~\/* 2&gt;\/dev\/null | sort -h\n<span class=\"o\">1.2G  \/home\/jspark\/Documents<\/span>\n<span class=\"o\">8.5G  \/home\/jspark\/Downloads<\/span>\n<span class=\"o\">28G   \/home\/jspark\/.cache       \u2190 \ubc94\uc778! \uce90\uc2dc\uac00 28G. \ud3f4\ub354\ubcc4\ub85c \uc904\uc138\uc6cc \ubcf4\uba74 \uc5b4\ub514\uac00 \ud070\uc9c0 \ubcf4\uc784<\/span>\n<span class=\"o\">                          \u2190 du = &#8216;\ub514\ub809\ud1a0\ub9ac\ubcc4&#8217; \uc0ac\uc6a9\ub7c9. 7\ud3b8\uc758 sort -h \ud30c\uc774\ud504\uc640 \uc870\ud569 \u2014 12\ud3b8\uc5d0\uc11c \ubcf8 \uadf8 \ud328\ud134<\/span><\/div>\n  <div class=\"databox\"><b>\ucc28\uc774 \ud55c \uc904:<\/b> <code>df<\/code> = &#8220;\ub514\uc2a4\ud06c(\ud30c\ud2f0\uc158) \ub2e8\uc704\ub85c \uc5bc\ub9c8\ub098 \ucc3c\ub098&#8221; \u2014 \ud070 \uadf8\ub9bc. <code>du<\/code> = &#8220;\uc774 \ud3f4\ub354\uac00 \uc5bc\ub9c8\ub098 \uba39\ub098&#8221; \u2014 \ubc94\uc778 \ucd94\uc801. \uc21c\uc11c: \uba3c\uc800 <code>df -h<\/code>\ub85c \uc5b4\ub290 \ud30c\uc77c\uc2dc\uc2a4\ud15c\uc774 \uaf49 \ucc3c\ub294\uc9c0 \ubcf4\uace0 \u2192 \uadf8 \uc548\uc5d0\uc11c <code>du -sh \uacbd\ub85c\/* | sort -h<\/code>\ub85c \uc810\uc810 \uc881\ud600 \ub4e4\uc5b4\uac00 \ubc94\uc778 \ud3f4\ub354\ub97c \ucc3e\ub294\ub2e4. <code>sudo apt install ncdu<\/code> \ud6c4 <code>ncdu \/<\/code>\ub97c \uc4f0\uba74 \u2014 \ud654\uc0b4\ud45c\ub85c \ud3f4\ub354\ub97c \ud30c\uace0\ub4e4\uba70 \uc2dc\uac01\uc801\uc73c\ub85c \ubcfc \uc218 \uc788\uc5b4 \ud6e8\uc52c \ud3b8\ud569\ub2c8\ub2e4(\ub098\uac00\uae30 q).<\/div>\n\n  <h2>&#8220;\uc6a9\ub7c9 \ubd80\uc871&#8221; \uc7a1\uae30 \u2014 \ud754\ud55c \ubc94\uc778\uacfc \uccad\uc18c<\/h2>\n  <p><code>du<\/code>\ub85c \ubc94\uc778\uc744 \ucc3e\uc558\uc73c\uba74 \ube44\uc6c1\ub2c8\ub2e4. \uc785\ubb38\uc790\uc5d0\uac8c \ud754\ud55c \ubc94\uc778 \uc14b + \uc548\uc804\ud55c \uccad\uc18c\ubc95:<\/p>\n  <ul>\n    <li><strong>apt \uce90\uc2dc<\/strong> (<code>\/var\/cache\/apt<\/code>): \uc124\uce58\ud55c \ud328\ud0a4\uc9c0 \ud30c\uc77c\uc774 \uc313\uc784. <code>sudo apt clean<\/code>(\uc804\ubd80 \ube44\uc6c0) \ub610\ub294 <code>sudo apt autoremove --purge<\/code>(11\ud3b8 \u2014 \uc548 \uc4f0\ub294 \ud328\ud0a4\uc9c0+\uc758\uc874\uc131 \uc81c\uac70). \uc548\uc804.<\/li>\n    <li><strong>\uc800\ub110 \ub85c\uadf8<\/strong> (<code>\/var\/log\/journal<\/code>): systemd \ub85c\uadf8\uac00 \uc313\uc784. <code>sudo journalctl --vacuum-time=7d<\/code>(7\uc77c\uce58\ub9cc \ub0a8\uae40) \ub610\ub294 <code>--vacuum-size=200M<\/code>. \uc548\uc804 (\uc624\ub798\ub41c \ub85c\uadf8\ub9cc \uc9c0\uc6c0).<\/li>\n    <li><strong>\ub0b4 \uce90\uc2dc\/\ud734\uc9c0\ud1b5<\/strong> (<code>~\/.cache<\/code>, <code>~\/.local\/share\/Trash<\/code>): \ube0c\ub77c\uc6b0\uc800\u00b7\uc571 \uce90\uc2dc, \ud734\uc9c0\ud1b5. \ud734\uc9c0\ud1b5 \ube44\uc6b0\uae30\ub294 \ud30c\uc77c \ub9e4\ub2c8\uc800\uc5d0\uc11c, \uce90\uc2dc\ub294 \uc571 \ub2eb\uace0 <code>~\/.cache<\/code> \uc548\uc758 \ud070 \ud3f4\ub354\ub97c \uace8\ub77c \uc0ad\uc81c(\uc571\uc774 \ub2e4\uc2dc \ub9cc\ub4e6 \u2014 \ubcf4\ud1b5 \uc548\uc804\ud558\uc9c0\ub9cc \uc571\ubcc4\ub85c \ub2e4\ub984).<\/li>\n    <li><strong>\uc2a4\ub0c5 \uc61b \ubc84\uc804<\/strong>: <code>sudo snap set system refresh.retain=2<\/code> \ud6c4 <code>sudo snap list --all<\/code>\ub85c <code>disabled<\/code> \ud45c\uc2dc\ub41c \uc61b \ub9ac\ube44\uc804\uc744 <code>sudo snap remove \uc774\ub984 --revision=N<\/code>\uc73c\ub85c. \uc2a4\ub0c5 \uc571\uc744 \ub9ce\uc774 \uae54\uc558\ub2e4\uba74 \uc758\uc678\ub85c \ud07c.<\/li>\n  <\/ul>\n  <div class=\"warnbox\"><strong>\u26a0\ufe0f &#8220;\ube44\uc6b0\uae30&#8221;\ub294 \uc2e0\uc911\ud788:<\/strong> <code>du<\/code>\ub85c \ud070 \ud3f4\ub354\ub97c \ucc3e\uc558\ub2e4\uace0 \ubb34\uc791\uc815 <code>rm -rf<\/code> \ud558\uc9c0 \ub9c8\uc138\uc694(6\ud3b8\uc758 \uadf8 \uacbd\uace0). <code>\/var<\/code>\u00b7<code>\/usr<\/code>\u00b7<code>\/boot<\/code> \uac19\uc740 \uc2dc\uc2a4\ud15c \ud3f4\ub354\uc758 \ub0b4\uc6a9\uc740 \ud568\ubd80\ub85c \uc9c0\uc6b0\uba74 \uc2dc\uc2a4\ud15c\uc774 \ub9dd\uac00\uc9d1\ub2c8\ub2e4. &#8220;\uc9c0\uc6cc\ub3c4 \ub418\ub294 \uac83&#8221;\uc740 <strong>\uce90\uc2dc\u00b7\ub85c\uadf8\u00b7\ud734\uc9c0\ud1b5\u00b7\ub2e4\uc6b4\ub85c\ub4dc \ud3f4\ub354\uc758 \uc548 \uc4f0\ub294 \ud30c\uc77c<\/strong> \uc815\ub3c4\ub85c \ud55c\uc815\ud558\uace0, \uc2dc\uc2a4\ud15c \uc601\uc5ed\uc740 \uc704\uc5d0 \uc801\uc740 \uc804\uc6a9 \uba85\ub839(<code>apt clean<\/code>\u00b7<code>journalctl --vacuum-*<\/code>)\uc73c\ub85c\ub9cc \uc815\ub9ac\ud558\uc138\uc694. \uc758\uc2ec\uc2a4\ub7ec\uc6b0\uba74 \uadf8 \uacbd\ub85c\ub97c \uac80\uc0c9\ud558\uace0 \u2014 &#8220;\uc774\uac70 \uc9c0\uc6cc\ub3c4 \ub418\ub098\uc694&#8221;\ub294 \ub204\uad70\uac00 \uc774\ubbf8 \ubb3c\uc5b4\ubd24\uc2b5\ub2c8\ub2e4.<\/div>\n\n  <h2>USB\u00b7\uc678\uc7a5\ud558\ub4dc \ub2e4\ub8e8\uae30 \u2014 \ub9c8\uc6b4\ud2b8\uc640 \uc548\uc804\ud558\uac8c \ube7c\uae30<\/h2>\n  <p>\uc694\uc998 \uc6b0\ubd84\ud22c\ub294 USB\ub97c \uaf42\uc73c\uba74 \ub370\uc2a4\ud06c\ud0d1\uc5d0 \uc54c\uc544\uc11c \uc790\ub3d9 \ub9c8\uc6b4\ud2b8\ub429\ub2c8\ub2e4(<code>\/media\/\uc0ac\uc6a9\uc790\/...<\/code>). \uba85\ub839\uc5b4\ub85c \ud655\uc778\u00b7\uad00\ub9ac\ud558\ub824\uba74:<\/p>\n  <div class=\"cmd\"><span class=\"c\">$<\/span> lsblk\n<span class=\"o\">                          \u2190 USB\uac00 sdb1 \uac19\uc740 \uc774\ub984\uc73c\ub85c, \/media\/jspark\/&#8230; \uc5d0 \ub9c8\uc6b4\ud2b8\ub410\ub294\uc9c0 \ud655\uc778<\/span>\n<span class=\"c\">$<\/span> df -h \/media\/jspark\/USB\uc774\ub984\n<span class=\"o\">                          \u2190 \uadf8 USB\uc758 \uc6a9\ub7c9\/\uc5ec\uc720 \ud655\uc778<\/span>\n<span class=\"c\">$<\/span> sudo umount \/media\/jspark\/USB\uc774\ub984\n<span class=\"o\">                          \u2190 &#8216;\uc548\uc804\ud558\uac8c \ube7c\uae30&#8217;\uc758 \uba85\ub839\uc5b4 \ubc84\uc804 = \uc5b8\ub9c8\uc6b4\ud2b8. \uc774\uac78 \ud574\uc57c \uc4f0\ub358 \ub370\uc774\ud130\uac00 \ub2e4 \uae30\ub85d\ub428. (\ub610\ub294 \ud30c\uc77c\ub9e4\ub2c8\uc800\uc758 \u23cf \ubc84\ud2bc)<\/span>\n<span class=\"c\">$<\/span> sudo mount \/dev\/sdb1 \/mnt\n<span class=\"o\">                          \u2190 \uc790\ub3d9 \ub9c8\uc6b4\ud2b8\uac00 \uc548 \ub410\uc744 \ub54c \uc218\ub3d9\uc73c\ub85c: sdb1 \ud30c\ud2f0\uc158\uc744 \/mnt \ud3f4\ub354\uc5d0\uc11c \ubcf4\uc774\uac8c. \ub05d\ub098\uba74 sudo umount \/mnt<\/span><\/div>\n  <div class=\"warnbox\"><strong>\u26a0\ufe0f \ube7c\uae30 \uc804 \uaf2d <code>umount<\/code>(\ub610\ub294 \ud30c\uc77c\ub9e4\ub2c8\uc800 \u23cf):<\/strong> \uadf8\ub0e5 USB\ub97c \ubf51\uc73c\uba74 \ubbf8\ucc98 \ub2e4 \uae30\ub85d \uc548 \ub41c \ub370\uc774\ud130\uac00 \ub0a0\uc544\uac08 \uc218 \uc788\uc2b5\ub2c8\ub2e4(\uc708\ub3c4\uc6b0\uc758 &#8220;USB \uc548\uc804\ud558\uac8c \uc81c\uac70&#8221;\uc640 \uac19\uc740 \uc774\uc720). \uadf8\ub9ac\uace0 <strong>\ud30c\ud2f0\uc158 \ub9cc\ub4e4\uae30\u00b7\ud3ec\ub9f7(<code>fdisk<\/code>\u00b7<code>mkfs<\/code>\u00b7\ub514\uc2a4\ud06c \uc571\uc758 &#8220;\ud3ec\ub9f7&#8221;)\uc740 \ub300\uc0c1\uc744 \uc798\ubabb \uace0\ub974\uba74 \uadf8 \ub514\uc2a4\ud06c \ub0b4\uc6a9\uc774 \ud1b5\uc9f8\ub85c \uc0ac\ub77c\uc9d1\ub2c8\ub2e4 \u2014 \uc785\ubb38 \ub2e8\uacc4\uc5d0\uc120 \uc190\ub300\uc9c0 \ub9c8\uc138\uc694.<\/strong> <code>\/etc\/fstab<\/code>(\ubd80\ud305 \uc2dc \uc790\ub3d9 \ub9c8\uc6b4\ud2b8 \uc124\uc815 \ud30c\uc77c)\ub3c4 \uc798\ubabb \uace0\uce58\uba74 \ubd80\ud305\uc774 \uc548 \ub420 \uc218 \uc788\uc73c\ub2c8, \uac74\ub4dc\ub9b4 \ub550 8\ud3b8\ucc98\ub7fc \ubc31\uc5c5 \uba3c\uc800(<code>sudo cp \/etc\/fstab \/etc\/fstab.bak<\/code>).<\/div>\n  <div class=\"databox\"><b>\uc624\ub298\uc758 \uc815\ub9ac:<\/b> <code>lsblk<\/code>(\ub514\uc2a4\ud06c\u00b7\ud30c\ud2f0\uc158\u00b7\ub9c8\uc6b4\ud2b8 \ud2b8\ub9ac)\u00b7<code>findmnt<\/code>(\ub9c8\uc6b4\ud2b8\ub9cc). <code>df -h<\/code>(\ud30c\uc77c\uc2dc\uc2a4\ud15c\ubcc4 \uc0ac\uc6a9\ub7c9 \u2014 \ud070 \uadf8\ub9bc). <code>du -sh \uacbd\ub85c<\/code>\u00b7<code>du -sh \uacbd\ub85c\/* | sort -h<\/code>(\ud3f4\ub354\ubcc4 \u2014 \ubc94\uc778 \ucd94\uc801). <code>ncdu \/<\/code>(\uc2dc\uac01\uc801 \ud0d0\uc0c9). \uccad\uc18c: <code>sudo apt clean<\/code>\u00b7<code>apt autoremove --purge<\/code>\u00b7<code>journalctl --vacuum-time=7d<\/code>\u00b7<code>~\/.cache<\/code> \uc815\ub9ac. USB: <code>lsblk<\/code>\ub85c \ud655\uc778 \u2192 \ube7c\uae30 \uc804 <code>sudo umount<\/code>. \ud3ec\ub9f7\u00b7<code>fdisk<\/code>\u00b7<code>\/etc\/fstab<\/code>\uc740 \uc2e0\uc911\ud788(\ubc31\uc5c5 \uba3c\uc800).<\/div>\n\n  <div class=\"roadmap\">\n    <h3>\uc2dc\ub9ac\uc988 \ud750\ub984<\/h3>\n    <ol>\n      <li>1~13\ud3b8 \uc785\ubb38\u00b7\uae30\ucd08\u00b7vim \u2714 &nbsp; 14\ud3b8 \ud504\ub85c\uc138\uc2a4 \uad00\ub9ac \u2714<\/li>\n      <li><strong>15\ud3b8 \u2014 \ub514\uc2a4\ud06c \uad00\ub9ac (\uc774 \uae00) \u2714<\/strong><\/li>\n      <li>16\ud3b8 \u2014 \ub124\ud2b8\uc6cc\ud06c \uba85\ub839\uc5b4 (<code>ip<\/code>\u00b7<code>ping<\/code>\u00b7<code>curl<\/code>\u00b7<code>ss<\/code> \u2014 &#8220;\uc778\ud130\ub137 \uc548 \ub3fc\uc694&#8221; \uc9c4\ub2e8)<\/li>\n      <li>17\ud3b8~ \u2014 ufw \ubc29\ud654\ubcbd \/ SSH \ud0a4 \/ systemd \uc11c\ube44\uc2a4 \/ cron \/ \uc178 \uc2a4\ud06c\ub9bd\ud2b8 \u2026<\/li>\n    <\/ol>\n  <\/div>\n  <p>\uc624\ub298 \ud560 \uc77c: <code>lsblk<\/code>\u00b7<code>df -h<\/code>\ub97c \ud55c \ubc88\uc529 \uccd0\uc11c \ub0b4 \ub514\uc2a4\ud06c\uac00 \uc5b4\ub5bb\uac8c \uc0dd\uacbc\uace0 \uc5bc\ub9c8\ub098 \ucc3c\ub294\uc9c0 \ubcf4\uace0, <code>du -sh ~\/* 2&gt;\/dev\/null | sort -h<\/code>\ub85c \ud648\uc5d0\uc11c \ubb50\uac00 \uc81c\uc77c \ud070\uc9c0 \ud655\uc778\ud574\ubcf4\uc138\uc694. (\ub180\ub784\uac78\uc694 \u2014 \ub300\uac1c <code>.cache<\/code>\ub098 <code>Downloads<\/code>\uc785\ub2c8\ub2e4.) \uadf8\ub9ac\uace0 <code>sudo apt clean<\/code> \ud55c \ubc88 \u2014 \uc548\uc804\ud55c \uccad\uc18c\uc785\ub2c8\ub2e4. 16\ud3b8\uc5d0\uc11c \ub9cc\ub098\uc694. (\ub514\uc2a4\ud06c \uba85\ub839 \uc804\uccb4\ub294 <code>man df<\/code>\u00b7<code>man du<\/code>\u00b7<code>man lsblk<\/code>, \ub610\ub294 <a href=\"https:\/\/ubuntu.com\/server\/docs\" target=\"_blank\" rel=\"noopener\">\uc6b0\ubd84\ud22c \uc11c\ubc84 \ubb38\uc11c<\/a>.)<\/p>\n\n  <div class=\"cta\">\n    <h3>\uc6b0\ubd84\ud22c\u00b7\ub9ac\ub205\uc2a4 \uc785\ubb38 \uc2dc\ub9ac\uc988<\/h3>\n    <p>\uc774\uc81c &#8220;\uc6a9\ub7c9 \ubd80\uc871&#8221;\uc758 \ubc94\uc778\uc744 \ucc3e\uc2b5\ub2c8\ub2e4. 16\ud3b8 &#8220;\ub9ac\ub205\uc2a4 \ub124\ud2b8\uc6cc\ud06c \uba85\ub839\uc5b4&#8221;\ub85c \uc774\uc5b4\uc9d1\ub2c8\ub2e4.<\/p>\n    <p>\ub2e4\uc74c \ud3b8\uc740 <a href=\"https:\/\/junai.ai\/blog\/\" target=\"_blank\" rel=\"noopener\">JUNAI \ube14\ub85c\uadf8<\/a>\uc5d0\uc11c \uc774\uc5b4 \ubcf4\uc138\uc694.<\/p>\n  <\/div>\n\n<\/article>\n<\/div>\n\n<footer>\n  <div class=\"wrap\">\u00a9 2026 JUNAI \u00b7 \uc6b0\ubd84\ud22c\u00b7\ub9ac\ub205\uc2a4 \uc785\ubb38 \uc2dc\ub9ac\uc988 15\ud3b8 \u00b7 \ubcf8 \uae00\uc740 2026\ub144 5\uc6d4 13\uc77c \uae30\uc900\uc73c\ub85c \uc791\uc131\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/div>\n<\/footer>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>lsblk\u00b7df\u00b7du\ub85c \ub514\uc2a4\ud06c \ubcf4\uae30\uc640 \uc6a9\ub7c9 \ucd94\uc801, \uc6a9\ub7c9 \ubd80\uc871 \ubc94\uc778 \ucc3e\uace0 \uccad\uc18c, USB \ub9c8\uc6b4\ud2b8\u00b7\uc548\uc804\ud558\uac8c \ube7c\uae30. \ub9ac\ub205\uc2a4 \uc785\ubb38 15\ud3b8.<\/p>\n","protected":false},"author":1,"featured_media":174,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-184","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ubuntu-linux"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/posts\/184","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/comments?post=184"}],"version-history":[{"count":0,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/posts\/184\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/media\/174"}],"wp:attachment":[{"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/media?parent=184"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/categories?post=184"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/tags?post=184"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}