linux - Windows 更新破坏 ubuntu 文件系统, 导致无法启动

Question

Background

Windows 10+ ubuntu 16.04 双系统
Window 10 更新后,reboot 无法启动, 进入 grub rescue

Wrong

grub 的模式下把所有的 分区都有 ls 试了一遍，都是无法识别的文件系统，没有 grub 识别的 etx 类型.

使用 live 进入后，发现原来Linux的分区 /dev/sad4 (etx4) 变成 extend ，无法被识别

More Information

Boot repair的报告 Here

类似问题
http://askubuntu.com/question...

Answer 1

Use Paragon Partition Manager to create a recovery CD, boot the system, and repair the partition table. You can also try DiskGenius. DiskGenius can run directly on Windows PE disks, but its support for Linux partitions is somewhat poor. It may be because there is a small error in your partition table. For example, the out-of-range of one partition overlaps a little with another partition. Windows destroys it when it writes a new partition table.

Answer 2

Well, I agree with Ls's opinion. I suggest the subject use disk utility to check first. It may be that the partition type flag is damaged. In addition, the two systems used by the subject are quite new, so it is recommended to directly install the GPT partition; if you continue to maintain MBR, if the front is Microsoft's reserved partition, you can directly merge it, so that it will be more compact if it is converted into four primary partitions. .