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:按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:
- 首先,您需要知道系统安装的分区:例如/ dev / sda1
-
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