Applying kernel patches to SLES_SAP

[AnilDandi]

Hello,

I am a basis admin with very little knowledge on OS administration. I am tasked to provide support for a newly installed SLES_SAP 12 SPS 1 sandbox system, on which we have installed a HANA system.

SAP note 2205917, the linux kernel should be at least at 3.12.51-60.20 while we are at 3.12.49-11.

Can anyone point me to a good documentation on how to patch SLES_SAP kernel?

Additional information if required:

> SUSEConnect -s

[{"identifier":"SLES_SAP","version":"12.1","arch":"x86_64","status":"Not Registered"}]

> zypper lr

# | Alias                 | Name                  | Enabled | GPG Check | Refresh

--+-----------------------+-----------------------+---------+-----------+--------

1 | SLE-12-SP1-SAP-12.1-0 | SLE-12-SP1-SAP-12.1-0 | Yes     | (r ) Yes  | No

> zypper  se -s 'kernel*'

Loading repository data...

Reading installed packages...

S | Name                 | Type       | Version         | Arch   | Repository

--+----------------------+------------+-----------------+--------+----------------------

i | kernel-default       | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

  | kernel-default       | srcpackage | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-default-base  | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

i | kernel-default-devel | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

i | kernel-devel         | package    | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

i | kernel-firmware      | package    | 20140807git-9.1 | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-firmware      | srcpackage | 20140807git-9.1 | noarch | SLE-12-SP1-SAP-12.1-0

i | kernel-macros        | package    | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

i | kernel-source        | package    | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-source        | srcpackage | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-syms          | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

  | kernel-syms          | srcpackage | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-xen           | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

  | kernel-xen           | srcpackage | 3.12.49-11.1    | noarch | SLE-12-SP1-SAP-12.1-0

  | kernel-xen-base      | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

  | kernel-xen-devel     | package    | 3.12.49-11.1    | x86_64 | SLE-12-SP1-SAP-12.1-0

  | kernelshark          | package    | 2.0.4-3.95      | x86_64 | SLE-12-SP1-SAP-12.1-0

regards

AD

[benny_maercz · Accepted solution]

Hi Anil,

for SLES 4 SAP you can follow the same documentation as for the "normal" SLES. Normally you would run

$ sudo yast online_update

The system should give you a list of installable updates including the available kernel patches, if the system is correctly configured for online updates.

The whole process is described in the SLES manual:

https://www.suse.com/documentation/sles-12/book_sle_admin/data/cha_onlineupdate_you.html

Hope I could help. Kind regards

Benny

[Former Member]

Hello Anil,

There is an "if" in the note you need to consider. Are you running with XFS ?

You can check what you are using by running the mount command with user root. Equally you can look in etc/fstab.

If you are not using XFS (most likely using EXT3) then you do not immediately need to go the kernel version being advised in the note.

KR,

Amerjit

[AnilDandi]

Hi Amerjit,

That's right. We are using XFS, so this patch is recommended.

Moreover I remember reading somewhere that EXT3 is not good enough for HANA persistence.

regards

AD

[Former Member]

Hi Anil,

In that case the simplest way to do it would be as Benny has already suggested. Just make sure you have properly configured your system to receive updates via YAST.

KR,

Amerjit