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Persistent names for block devices

Posted by Alex On November 10, 2021

Table of contents 1. How to make drives and USB sticks have the same name 2. Persistent block device naming 2.1 by-label 2.2 by-uuid 2.3 by-id 2.4 by-path 2.5 by-partlabel 2.6 by-partuuid 3. Using persistent naming 3.1 Permanent block device names can be used as aliases for /dev/sdX 3.2 Using persistent names in the /etc/fstab filesystem table Conclusion How to make drives and USB sticks have...

How to repair an LVM disk using fsck

Posted by Alex On November 1, 2021

How to repair an LVM disk If, due to errors on the disk, the system cannot boot, then usually in the emergency mode console you need to check the disk partitions, approximately as follows (you need to specify your disk name and partition number): umount /dev/sda2 fsck -y /dev/sda2 But if we are talking about LVM, or LVM with encryption,...

How to determine why Linux boots into Emergency mode

Posted by Alex On November 1, 2021

How to determine the exact reason why Systemd falls in emergency mode A Linux system can go into an emergency mode shell if it encounters problems during boot. The screen prompts you to execute the command journalctl -xb to find the causes of system problems. It is also proposed to execute systemctl default or exit so that the system tries...

Error “Cannot open access to console, the root account is locked” (SOLVED)

Posted by Alex On October 26, 2021

After a sudden power outage, unsuccessful update or adding a new disk to /etc/fstab, you may face the problem that your system does not boot, or rather, boots into the console or into a black screen. Sometimes the problem is compounded by the fact that the system administrator cannot even get into the emergency console. Let's see how to solve the...

An unplugged disk causes a delay in system boot

Posted by Alex On July 15, 2021

The fstab file contains descriptive information about the file systems that the system can mount. In the /etc/fstab file, you can specify the parameters for mounting a disk, which can be either plugged to the system or unplugged from it. An example of such a disk is an external USB drive. In the latter case, you must additionally specify the...