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A system administrator needs to ensure that a custom kernel module loads automatically at boot. The module is named 'my_driver' and is built for the current kernel. Which configuration file should be modified to ensure the module loads automatically?
Option C is correct because systemd-based Linux distributions use /etc/modules-load.d/ to specify kernel modules that should be loaded automatically at boot. Placing a configuration file (e.g., my_driver.conf) containing the module name 'my_driver' in this directory instructs sys…Read full explanation
During boot, the kernel outputs a message indicating that a required device driver is not found. Which command can be used to rebuild the initramfs to include the missing driver?
Dracut is the standard tool for building initramfs images on modern Red Hat-based distributions (RHEL, CentOS, Fedora). When a required kernel driver is missing during boot, you can use `dracut --force` to rebuild the initramfs, which will automatically include the currently load…Read full explanation
A server with a custom kernel fails to boot after a kernel update. The system displays a kernel panic: 'VFS: Unable to mount root fs on unknown-block(0,0)'. The root filesystem is on an LVM volume. What is the most likely cause?
The kernel panic 'VFS: Unable to mount root fs on unknown-block(0,0)' indicates the kernel cannot locate the root filesystem. Since the root filesystem resides on an LVM volume, the initramfs must contain LVM tools and modules to activate the volume group and logical volumes befo…Read full explanation
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