Steps to fix unable to enter system Linux: Try recovery mode and repair root partition file system. Check bootloader and reinstall. Check and fix file system errors. Update the kernel. Check for hardware issues and make sure all components are securely connected and working properly.
Linux cannot enter the system after restarting: Repair Guide
When your Linux system cannot enter the system after restarting It can be very frustrating. This problem can be caused by a number of reasons, but the following steps will help you diagnose and resolve it:
1. Try a recovery mode reboot
- computer and hold down the Shift key to enter the GRUB menu.
- Scroll and select "Recovery Mode".
-
If the system boots successfully in "Recovery Mode", try the following command:
-
fsck -f /dev/sda1(replace/dev/sda1for your root partition) reboot
-
2. Check the boot Loader
- Boots a Linux Live CD or DVD.
- Mount your Linux partition, for example:
sudo mount /dev/sda1 /mnt. -
Run the following command to reinstall the boot loader:
-
sudo grub2-install /dev/sda(replace/dev/ sdais your hard drive) sudo update-grub
-
3. Check for file system errors
- Boot a Linux Live CD or DVD.
- Mount your Linux partition, for example:
sudo mount /dev/sda1 /mnt. -
Run the following command to check and fix file system errors:
sudo fsck -f /mnt
4. Update the kernel
- Boot a Linux Live CD or DVD.
- Mount your Linux partition, for example:
sudo mount /dev/sda1 /mnt. -
Run the following command to update the kernel:
sudo apt-get update-
sudo apt-get install linux-image-generic(for Ubuntu) orsudo yum install kernel(for CentOS)
5. Check for hardware issues
-
#If the above steps cannot solve the problem, it may be caused by a hardware problem. Try the following:
- Check that the RAM, hard drive, and graphics card are securely connected and working properly.
- Try using a different power supply or graphics card.
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