Ubuntu16.04启动到initramfs

Ubuntu无法启动,它进入initramfs。 我是在现场CD试用会上写的。 我该怎么办?

我知道引导流程已被破坏,并且当来自root的文件将被加载到ram中时,它不会在根目录中找到这些文件。 如果我错了,请纠正我。

以下是我输入“ exit ”命令时ashell的输出:

 (initramfs) exit /dev/mapper/ubuntu--vg-root contains a file system with errors, check forced. Inodes that were part of a corrupted orphan linked list found. /dev/mapper/ubuntu-vg-root: UNEXPECTED INCONSISTENCY; Run fsck MANUALLY. (ie, without -a or -p options) fsck exited with status code 4. The root file system on /dev/mapper/ubuntu--vg-root requires manual fsck 

执行:

 (initramfs) fsck /dev/mapper/ubuntu--vg-root 

选择’y’到所有’修复?’ 提示

注意,您的根分区可能不是/dev/mapper/ubuntu--vg-root – 修改此部分适合您的启动分区的位置

看来你有一个糟糕的超级块。 要解决此问题,请按照以下步骤操作:

步骤1:启动到现场CD或USB并选择尝试ubuntu而不安装选项

第2步:ctrl+alt+t或打开终端

第三幕:

通过使用找出您的分区号

 sudo fdisk -l|grep Linux|grep -Ev 'swap' 

然后,使用以下命令列出所有超级块:

 sudo dumpe2fs /dev/sda7 | grep superblock 

将sda7替换为您的驱动器号

你应该得到类似的输出

 Primary superblock at 0, Group descriptors at 1-6 Backup superblock at 32768, Group descriptors at 32769-32774 Backup superblock at 98304, Group descriptors at 98305-98310 Backup superblock at 163840, Group descriptors at 163841-163846 Backup superblock at 229376, Group descriptors at 229377-229382 Backup superblock at 294912, Group descriptors at 294913-294918 Backup superblock at 819200, Group descriptors at 819201-819206 Backup superblock at 884736, Group descriptors at 884737-884742 Backup superblock at 1605632, Group descriptors at 1605633-1605638 Backup superblock at 2654208, Group descriptors at 2654209-2654214 Backup superblock at 4096000, Group descriptors at 4096001-4096006 Backup superblock at 7962624, Group descriptors at 7962625-7962630 Backup superblock at 11239424, Group descriptors at 11239425-11239430 Backup superblock at 20480000, Group descriptors at 20480001-20480006 Backup superblock at 23887872, Group descriptors at 23887873-23887878 

从此列表中选择一个备用超级块,对于这种情况,备用超级块# 32768

现在,使用备用超级块#32768检查和修复Linux文件系统:

 sudo fsck -b 32768 /dev/sda7 -y 

-y标志用于跳过所有修复? 问题并自动回答所有问题

您应该获得类似的输出:

 fsck 1.40.2 (12-Jul-2007) e2fsck 1.40.2 (12-Jul-2007) /dev/sda2 was not cleanly unmounted, check forced. Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information Free blocks count wrong for group #241 (32254, counted=32253). Fix? yes Free blocks count wrong for group #362 (32254, counted=32248). Fix? yes Free blocks count wrong for group #368 (32254, counted=27774). Fix? yes .......... /dev/sda2: ***** FILE SYSTEM WAS MODIFIED ***** /dev/sda2: 59586/30539776 files (0.6% non-contiguous), 3604682/61059048 blocks 

现在尝试安装分区

 sudo mount /dev/sda7 /mnt 

现在,尝试使用以下命令浏览文件系统

 cd /mnt sudo mkdir test ls -l 

如果您能够执行上述命令,则很可能已解决您的问题。

现在,重新启动计算机,您应该能够正常启动。

( 来源 )

这很简单! 自上次以来有些东西改变了你的FS,然后必须检查并纠正它,执行以下操作:

  1. 首先,您需要知道系统安装的分区:例如/ dev / sda1
  2. 进入initramfs屏幕后,输入以下内容:

     e2fsck -f -y -v -C 0 /dev/sdaX 

请记住,必须更改/ dev / sdaX作为系统安装的分区