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ทำอย่างไรถ้าคุณลืม password ของ Mac OS X
Posted on December 18, 2009 by smith salifa in Mac OS X Unix, Xserveกรณีที่ลืม password ในการเข้าเครื่องของ Mac OS X โดยปรกติแล้วกรณีนี้วิธีที่ง่ายที่สุดก็คือการ boot จาก CD หรือ DVD ของ Mac OS X แล้วเข้า menu ของการ reset user password
แต่ในกรณีที่เราไม่สามารถที่จะ boot เครื่องจาก CD หรือ DVD ได้ไม่ว่าจะเป็นเพราะ แผ่น DVD เสีย ไม่มีแผ่น หรือ DVD Drive มีปัญหาเราก็ยังเราสามารถทำได้โดยการ boot เข้าใน single user mode โดยทำตามขั้นตอนต่อไปนี้
- shut down เครื่อง Mac
- เปิดเครื่องใหม่ เมื่อได้ยินเสียงเครื่องเปิด ให้กดปุ่ม “Command” และปุ่ม “S” ค้างไว้
- ให้กดค้างใว้ จนกว่าเครื่องจะ boot เข้าหน้าจอสีดำ และขึ้นคำสั่ง UNIX ที่ด้านล่างของจอภาพ
- พิมพ์คำสั่ง
fsck -y
กด enter แล้วรอให้เครื่องทำงาน จนกว่าเครื่องจะพร้อมให้พิมพ์คำสั่งต่อไป
mount -uw /
- กด inter รอให้คำสั่งทำงานจนกว่า ตัวเคอร์เซอร์ จะตกลงมาอยู่อีกบรรทัด และะร้อมรับคำสั่งต่อไป
- จากนั้น เป็นขั้นตอนการเปลี่ยน password ของ user ที่เราต้องการ ก่อนอื่นต้องรู้ “short name” ของ user ที่ต้องการก่อน เช่น user ที่ชื่อ scott tiger ใช้ short name ว่า scott เป็นต้น
- ให้พิมพ์คำสั่งเปลี่ยน password ของ user นั้นๆ ดังนี้
passwd scott
- กด enter จากนั้น Mac OS X ก็จะเปลี่ยน password ใหม่ให้ ตอนนี้เครื่องจะถาม password ใหม่ ของ scott ก็ให้ ป้อน password ใหม่ของ scott ลงไป สองครั้ง ก็เป็นอันว่าเสร็จเรียบร้อย
- พิมพ์ คำสั่ง “reboot” เพื่อให้เครื่อง boot ใหม่ จากนั้นก็สามารถที่จะ login เข้าเครื่องได้โดยใช้ password ใหม่ที่เพิ่งเปลี่ยนไปนั่นเอง
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