如何挂载 dd 备份的 lv 镜像？

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dd if=/dev/mapper/vg_ssd-lv_root of=/mnt/data/root.bak

产生的 lv 镜像，应该如何挂载昵?

Supplement 1 · Jul 4, 2016

2016.7.4 update fs是xfs，所以挂载需要：

mount -o nouuid /path/to/image/of/lv /mnt

不然报错：

Filesystem has duplicate UUID

如果是ext4的话，就直接mount。

镜像

mapper

dev

mnt

4 replies • 2016-06-17 10:27:30 +08:00

yangyaofei

Jun 17, 2016 via Android

貌似可以直接挂载 mount

ryd994

Jun 17, 2016 via Android

试试 losetup /dev/loop0 example.img
如果是带文件系统的直接 mount -t ext4 -o loop image path

mrco

Jun 17, 2016

@ryd994
```
sudo mount -t xfs -o loop ./root.bak /mnt/root/
mount: wrong fs type, bad option, bad superblock on /dev/loop1,
missing codepage or helper program, or other error

In some cases useful info is found in syslog - try
dmesg | tail or so.
```

ryd994

Jun 17, 2016 via Android