Mailinglist Archive: opensuse (1047 mails)

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Re: [opensuse] zypper upgrade problem
On 01/06/2016 12:00 PM, don fisher wrote:
I found additional items I am unsure about. When I examine /lib/modules,
or /boot, I find references to at least two kernels. I realize when an
update is made the currently executing kernel must be maintained. But
where do the references to the old kernel modules etc. get deleted? Does
each new install delete all previous kernel references so we always
have one backup?

Of course its going to be configurable.
There's surely long winded and awkward to read document ion somewhere,
but the simplest thing is to look at the configuration files.

In this case you want to look at /etc/zypp/zypp.conf
In 13.x it says

## Comma separated list of kernel packages to keep installed in
## parallel, if the
## above multiversion variable is set. Packages can be specified as
## - Exact version to keep
## latest - Keep kernel with the highest version number
## latest-N - Keep kernel with the Nth highest version number
## running - Keep the running kernel
## oldest - Keep kernel with the lowest version number (the GA
## oldest+N - Keep kernel with the Nth lowest version number
## Note: This entry is not evaluated by libzypp, but by the
## purge-kernels service (via /sbin/purge-kernels).

I keep the original kernel that came with the distribution and the last
4 kernels.
But then I also use the kernel_Stable repository to stay up to date
since I use BtrFS, and patches for that come out pretty much every week.

As it turns out, I don't reboot after each new kernel comes out.
Sometimes there are more than one each week. In a worse case situation
I might end up not rebooting for a month and have over a dozen kernels
in /boot! They get purged when I reboot. If I get frustrated I might
run purge-kernels manually.

Its not necessary to keep so many back kernels; its a decision you make
for specific reasons. "Paranoia" is an adequate reason.

I'll leave it to others to tell how LEAP follows this or not.

A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting frowned upon?

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