linux系統奔潰後的緊急救援模式

背景:


linux系統奔潰後的緊急救援模式(init : Failed to spawn readahead-collector main process :unable to execute)

1.公司同事反饋jenkins沒法構建,html

有一臺linux虛擬機沒法登錄,報錯信息以下linux

init: Failed to spawn readahead-collector main process: unable to execute: no such file or directory
init: Failed to spawn rcS main process: unable to execute: No such file or directory
init: Failed to spawn readahead main process: unable to execute: No such file or directory
init: Failed to spawn readahead-collector post-stop process: unable to execute: No such file or directory
init: Failed to spawn rcS post-stop process: unable to execute: No such file or directory
init: Failed to spawn kexec-disable main process: unable to execute: No such file or directory
init: Failed to spawn readahead-disable-services main process: unable to execute: No such file or directoryshell

 

因爲此時系統啓動不了,此時只能採用救援模式登錄系統centos

2.使用救援模式(Rescue installed system)登錄系統bash

因爲系統是虛擬機,全部首先關閉系統後掛載鏡像文件網絡

啓動系統,選擇Rescue installed systemide

語言這裏就默認選English(也能夠選簡體中文)post

 

選擇鏈接網絡this

選擇模式spa

shell  直接進入命令行, 能夠進行的操做有編輯文件、修改用戶密碼等

fakd  診斷模式

reboot  會直接重啓

這裏選擇shell模式

此時就進入shell模式

3.進入root環境恢復系統

   使用如下命令切換到原有的系統

   chroot /mnt/sysimage

此時報錯:/bin/sh no such file or directory錯誤,則須要恢復系統bash環境,須要執行如下命令:

cp -r /sbin /mnt/sysimage
cp -r /bin/* /mnt/sysimage/bin/
cd /mnt/sysimage
cp -r /usr/bin/* .

   此時再從新進入

chroot /mnt/sysimage

   

   執行grub-install命令從新安裝GRUB

   grub-install /dev/sda

   

   此時表明修復成功了,重啓系統(按理此時能夠正常進入系統,但是我這邊仍是沒法進入系統,此問題留待後續解決吧

   因爲此時是聯網的,能夠將重要文件拷貝(scp)到其餘機器上

   

   至此係統尚未恢復,只能經過網絡拷貝文件



參考:https://www.cnblogs.com/Yongzhouunknown/p/9397097.html


init : Failed to spawn readahead-collector main process :unable to execute ...

https://blog.51cto.com/11627433/1922007

http://www.bubuko.com/infodetail-2053034.html


centos6單用戶模式:卡不動按F5:

https://blog.csdn.net/AhhSong/article/details/77073733

centos6.5系統詳細使用救援模式:

https://jingyan.baidu.com/article/4f34706e07fa5ce387b56dcc.html


linux系統奔潰後的緊急救援模式(init : Failed to spawn readahead-collector main process :unable to execute)

https://www.cnblogs.com/Yongzhouunknown/p/9397097.html



Greetings.

anaconda installer init version 13.21.254 starting

mounting /proc filesystem... failed.

I can't recover from this.

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