使用winhex手工恢複Linux Ext4 GPT分區表案例

標籤：使用winhex手工恢複linux ext4 gpt分區表案例

Linux Ext4 GPT分區表恢複案例

一：故障現象

硬碟分區位置有壞道，導致分區丟失。
650) this.width=650;" id="aimg_531" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/132200zdfsqj3fydsfzjyf.png" class="zoom" width="600" alt="132200zdfsqj3fydsfzjyf.png" /> 

恢複詳細步驟如：
1：分區起始扇區和結束扇區描述位元組位置。
650) this.width=650;" id="aimg_522" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/124102m2507c052s0dufiu.png" class="zoom" width="600" alt="124102m2507c052s0dufiu.png" /> 

2：分區表CRC校正值所在位元組位置，扇區1（第二個扇區）
650) this.width=650;" id="aimg_523" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/124102zwwuwxd7dw9277ej.png" class="zoom" width="600" alt="124102zwwuwxd7dw9277ej.png" /> 


3：分區表CRC校正值計算方法，從扇區2到扇區33選擇上然後做CRC校正（計算雜湊值）
650) this.width=650;" id="aimg_524" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/124103pqgm3anamqapnrlr.png" class="zoom" width="600" alt="124103pqgm3anamqapnrlr.png" /> 

跳到33扇區
650) this.width=650;" id="aimg_525" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/124103nvogg93448f4rioz.png" class="zoom" width="600" alt="124103nvogg93448f4rioz.png" /> 

開啟“工具”－“計算雜湊值”

650) this.width=650;" id="aimg_530" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/124715uf7xwddv2p2iydyi.png" class="zoom" width="600" alt="124715uf7xwddv2p2iydyi.png" /> 

選擇“CRC32（32bit）”
650) this.width=650;" id="aimg_526" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/124103lj7q7w7idgjiqjh5.png" class="zoom" width="600" alt="124103lj7q7w7idgjiqjh5.png" /> 

得到我們要的CRC校正值

650) this.width=650;" id="aimg_527" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/124104s8r4ohyivrs8n8nc.png" class="zoom" width="600" alt="124104s8r4ohyivrs8n8nc.png" /> 

650) this.width=650;" id="aimg_528" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/124104l44xzkxw4xxbkgz4.png" class="zoom" width="600" alt="124104l44xzkxw4xxbkgz4.png" /> 

650) this.width=650;" id="aimg_529" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/124105e06g2tbtl5wgw3bb.png" class="zoom" width="600" alt="124105e06g2tbtl5wgw3bb.png" /> 

恢複完成後，分區正常。
650) this.width=650;" id="aimg_532" src="http://bbs.huakebosi.com/data/attachment/forum/201608/14/132234h44ppppkprz46mdd.png" class="zoom" width="600" alt="132234h44ppppkprz46mdd.png" /> 

使用winhex手工恢複Linux Ext4 GPT分區表案例