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+# 1. 列出所有分區
+
+```bash
+blkid
+```
+
+# 2. 修復系統磁區
+
+```bash
+fsck -y /dev/mapper/ubuntu--vg-ubuntu--lv
+```
+
+# 3. 離開後，自動進入系統
+
+```bash
+exit
+```
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