centos_not_booting

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centos_not_booting [2021/04/21 18:24] walkeradmincentos_not_booting [2023/03/09 22:35] (current) – external edit 127.0.0.1
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 ==== The Remedy ==== ==== The Remedy ====
 \\  \\ 
-We need to tell the system to not perform the fs+We need to tell the system to not perform the <color #ed1c24>fsck</color> at boot, and to do this we need to edit the file <color #ed1c24>fstab</color> in the <color #ed1c24>etc</color> directory (this is for CentOS).\\  
 +\\  
 +\\  
 +Open the file in a text editor by using <color #ed1c24>vi /etc/fstab</color> 
 +\\  
 +<file> 
 +
 +# /etc/fstab 
 +# Created by anaconda on Thu Nov  5 18:45:24 2020 
 +
 +# Accessible filesystems, by reference, are maintained under '/dev/disk' 
 +# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info 
 +
 +/dev/mapper/vg_main-lv_root /                       ext4    defaults        1 1 
 +UUID=ce253ff9-86ee-480b-87b3-7efa803bedda /boot                   ext4    defaults        1 2 
 +/dev/mapper/vg_main-lv_opt /opt                    ext4    defaults        1 2 
 +/dev/mapper/vg_main-lv_var /var                    ext4    defaults        1 1 
 +/dev/mapper/vg_main-lv_applogs /applogs            ext4    defaults        1 2 
 +</file> 
 +Above we see the contents of the <color #ed1c24>fstab</color> file (your own <color #ed1c24>fstab</color> will differ) and we know that the <color #ed1c24>journalctl -xe</color> was complaining about<color #ed1c24> /dev/mapper/vg_main-lv_var</color> 
 +\\  
 +\\  
 +Each entry in the fstab file has six fields: 
 +<file> 
 +1                          2                                           5 6 
 + 
 +/dev/mapper/vg_main-lv_var /var                    ext4    defaults        1 1 
 +</file> 
 +\\  
 +It is the last number we want to change, and we will change this to a zero, this will mark this partition (and only this partition) to ignore fsck at boot. 
 +\\  
 +<file> 
 +So we will change: 
 + 
 +/dev/mapper/vg_main-lv_var /var                    ext4    defaults        1 1 
 + 
 +to 
 + 
 +/dev/mapper/vg_main-lv_var /var                    ext4    defaults        1 0 
 +</file> 
 +Save this file, and now you should be able to do a test reboot, and the system should boot normally to user login page rather than emergency mode. 
 +\\  
 +\\  
 +\\  
centos_not_booting.1619025863.txt.gz · Last modified: 2023/03/09 22:35 (external edit)