List or Check Installed Linux Kernels
Q. How do I list all installed kernel on Linux operating system? How do I find out current kernel version?
A. You can use standard package listing command to list installed kernels.
RedHat / CentOS / RHEL / Fedora Linux user
You need to use standard rpm command to list installed software. Type the following command at shell prompt:
$ rpm -qa kernel
Output:
kernel-2.6.18-4.1.15.el5 kernel-2.6.18-8.1.14.el5 kernel-2.6.18-8.1.10.el5
To list / display current kernel
Type the following command:
$ uname -r
$ uname -mrs
Output:
Linux 2.6.18-8.1.14.el5 x86_64
Debian / Ubuntu Linux user
Use dpkg command to list all installed kernel, enter:
$ dpkg --list | grep linux-image
Output:
ii linux-image-2.6.20-15-generic 2.6.20-15.27 Linux kernel image for version 2.6.20 on x86/ ii linux-image-2.6.20-16-generic 2.6.20-16.32 Linux kernel image for version 2.6.20 on x86/ ii linux-image-generic 2.6.20.16.28.1 Generic Linux kernel image
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Related Other Helpful FAQs:
- How to: Linux delete or remove kernel
- Find Linux / UNIX Kernel Version
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- Safely Remove / Delete Old Linux Kernel from a Linux Server
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Tags: CentOS, dpkg_command, fedora_linux, grep_command, installed_software, kernel_2, kernel_type, kernel_version, linux_image, linux_kernel_image, linux_operating_system, rhel, rpm_command, uname_command
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