On Thu, Aug 16, 2018 at 9:24 PM, Pablo Sebastián Greco <pablo@fliagreco.com.ar> wrote:

El 16/8/18 a las 17:08, Stephen John Smoogen escribió:

On Thu, 16 Aug 2018 at 15:58, Robert Moskowitz <rgm@htt-consult.com> wrote:

On 08/16/2018 03:00 PM, Stephen John Smoogen wrote:

On Thu, 16 Aug 2018 at 14:44, Robert Moskowitz <rgm@htt-consult.com> wrote:

I just installed the new kernel on one of my Cubieboard2s.  /boot used
grew ~130MB.

Challenge is that my next board to update only has 43MB free.  It
currently has 3 kernels on it.

Is there a way to cleanly delete old kernel files prior to the update?
In this case 4.9.30-203?

Are you meaning something like this?
```
[smooge@smoogen-laptop ~]$ rpm -q kernel
kernel-3.10.0-693.21.1.el7.x86_64
kernel-3.10.0-862.el7.x86_64
kernel-3.10.0-862.2.3.el7.x86_64
kernel-3.10.0-862.3.2.el7.x86_64
kernel-3.10.0-891.el7.x86_64
[smooge@smoogen-laptop ~]$ uname -a # to see what you have running
Linux smoogen-laptop.localdomain 3.10.0-891.el7.x86_64 #1 SMP Mon May
21 14:10:11 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux
$ sudo rpm -e kernel-3.10.0-693.21.1.el7.x86_64
kernel-3.10.0-862.el7.x86_64 kernel-3.10.0-862.2.3.el7.x86_64

rpm -e kernel-4.9.30-203.el7.armv7hl

Did nothing.  Just came back to the # prompt.  And no reduction in space
used in /boot and no change in 'ls /boot'.  Or at least what I noticed.

Then you need to use the du command and see what is using up the
space. Also check to make sure that the size is the same as the other
systems to see why they have different amounts.

kernels for armhfp come in 3 parts (or more), there is kernel, kernel-core and kernel-modules, so you need to remove all those 3 for each kernel in order o actually free space.

rpm -qa "kernel*"|sort
kernel-4.14.28-201.el7.centos.armv7hl
kernel-4.14.52-201.el7.armv7hl
kernel-core-4.14.28-201.el7.centos.armv7hl
kernel-core-4.14.52-201.el7.armv7hl
kernel-headers-4.14.52-201.el7.armv7hl
kernel-modules-4.14.28-201.el7.centos.armv7hl
kernel-modules-4.14.52-201.el7.armv7hl
kernel-tools-4.14.52-201.el7.armv7hl
kernel-tools-libs-4.14.52-201.el7.armv7hl

Pablo.
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