Sunday, 26 June 2011

Linux /boot: Out of Disk Space


Linux /boot: Out of Disk Space While Installing Package kernel-2.6.32-131.2.1.el6.x86_64


I'm trying to install RHEL 6 kernel updates and patches using the yum command and getting the following error:
Transaction Check Error:
installing package kernel-2.6.32-131.2.1.el6.x86_64 needs 8MB on the /boot filesystem

Error Summary
-------------
Disk Requirements:
At least 8MB more space needed on the /boot filesystem.
How do I fix this error and install RHEL kernel without increasing /boot size or reinstalling the operating system?



To update kernel, enter:
# yum update kernel

Sample outputs:

Loaded plugins: priorities, product-id, rhnplugin, subscription-manager
Updating Red Hat repositories.
70 packages excluded due to repository priority protections
Setting up Update Process
Resolving Dependencies
There are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them.
--> Running transaction check
---> Package kernel.x86_64 0:2.6.32-131.2.1.el6 will be installed
--> Processing Dependency: kernel-firmware >= 2.6.32-131.2.1.el6 for package: kernel-2.6.32-131.2.1.el6.x86_64
--> Running transaction check
---> Package kernel-firmware.noarch 0:2.6.32-131.0.15.el6 will be updated
---> Package kernel-firmware.noarch 0:2.6.32-131.2.1.el6 will be an update
--> Finished Dependency Resolution
--> Running transaction check
---> Package kernel.x86_64 0:2.6.32-71.el6 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

=============================================================================================================================================================================================
Package Arch Version Repository Size
=============================================================================================================================================================================================
Installing:
kernel x86_64 2.6.32-131.2.1.el6 rhel-x86_64-server-6 23 M
Removing:
kernel x86_64 2.6.32-71.el6 @anaconda-RedHatEnterpriseLinux-201009221801.x86_64/6.0 112 M
Updating for dependencies:
kernel-firmware noarch 2.6.32-131.2.1.el6 rhel-x86_64-server-6 2.5 M

Transaction Summary
=============================================================================================================================================================================================
Install 1 Package(s)
Upgrade 1 Package(s)
Remove 1 Package(s)

Total size: 26 M
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test

Transaction Check Error:
installing package kernel-2.6.32-131.2.1.el6.x86_64 needs 8MB on the /boot filesystem

Error Summary
-------------
Disk Requirements:
At least 8MB more space needed on the /boot filesystem.

It means /boot partition is out of disk space. You can verify this with the df command itself, enter:
# df -H /boot

To fix this problem deleted all old kernel. To list all installed kernel, enter:

# rpm -qa | grep  kernel

Sample outputs:
kernel-2.6.32-71.el6.x86_64
kernel-2.6.32-71.29.1.el6.x86_64
kernel-2.6.32-131.0.15.el6.x86_64
Erase older version, enter:
# rpm -e kernel-2.6.32-71.el6.x86_64 kernel-2.6.32-71.29.1.el6.x86_64

# df -H /boot



Now, try installing the new updated kernel:
# yum -y update kernel 



Also apply other updates from RHN, enter:
# yum -y update



Finally, reboot the system, enter:
# reboot

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