[已解决]安装完arch后启动不了，不知道怎么解决！

[平凡D世界]

安装完启动，进入grub2后，出现这个！

ERROR：device '/dev/mapper/arch_root-image' not found,skipping fsck.
ERROR:unable to find root device '/dev/mapper/arch_root-image'.
you are being dropped to a recovery shell.
type 'exit'to try and continue booting.
sh:can't access tty;job control turned off.

然后输入exit也没用。

you are being dropped to a emeryency shell.
sh:can't access tty;job control turned off.

不知道什么 情况，怎麽解决，求助！
我是新手！

==========================

解决了，是grub的问题

echo 'Loading Linux core repo kernel ...'
linux /vmlinuz-linux root=/dev/mapper/arch_root-image ro quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-linux.img

我把这改成root=/dev/sda8 就可以启动了。

[枫叶饭团]

目测感觉像是安装工作中的某一步没做

[32idea]

检查一下arch的fstab文件里相关挂载设置是否正确