kernel panic-not syncing:VFS:Unable to mount root fs on unknown-block
|
故障信息 |
|
|
解决方案：
进入系统后修改内核启动,然后查看更改是否生效重启 |
开机启动时按Esc，然后选择下面的旧版本的内核启动即可。
（成功进入系统后，你可以选择改变开机默认选择的内核）。
##################################################################### [roo[email protected] ~]# [[email protected] ~]# cat /boot/grub2/grub.cfg |grep menuentry if [ x"${feature_menuentry_id}" = xy ]; then menuentry_id_option="--id" menuentry_id_option="" export menuentry_id_option
menuentry 'CentOS Linux (3.10.0-1062.18.1.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-693.el7.x86_64-advanced-be99dad8-7abd-4dd1-8331-83ce73931ed7' { menuentry 'CentOS Linux (3.10.0-1062.12.1.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-693.el7.x86_64-advanced-be99dad8-7abd-4dd1-8331-83ce73931ed7' { menuentry 'CentOS Linux (3.10.0-693.17.1.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-693.el7.x86_64-advanced-be99dad8-7abd-4dd1-8331-83ce73931ed7' { menuentry 'CentOS Linux (3.10.0-693.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-693.el7.x86_64-advanced-be99dad8-7abd-4dd1-8331-83ce73931ed7' { menuentry 'CentOS Linux (0-rescue-60938260b9bf4f25babd62b36082240e) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-60938260b9bf4f25babd62b36082240e-advanced-be99dad8-7abd-4dd1-8331-83ce73931ed7' {
当前 ：”CentOS Linux (3.10.0-1062.18.1.el7.x86_64) 7 (Core) “ 此内核启动失败， 修改为: ‘CentOS Linux (3.10.0-1062.12.1.el7.x86_64) 7 (Core)' 为默认启动的内核；
[[email protected] ~]# grub2-set-default "CentOS Linux (3.10.0-1062.12.1.el7.x86_64) 7 (Core)"
[[email protected] ~]# grub2-editenv list saved_entry=CentOS Linux (3.10.0-1062.12.1.el7.x86_64) 7 (Core) [[email protected] ~]# reboot |