doc: update documentation

Minor corrections and some updates to the documentation

Signed-off-by: Harman Kalra <hkalra@marvell.com>
Change-Id: I85c0eff46fa5c0b0e7ede6414d644fca9adf2b3a
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/dataplane/dpu-offload/+/132907
Tested-by: sa_ip-toolkits-Jenkins <sa_ip-toolkits-jenkins@marvell.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>

doc/guides/gsg/install.rst

@@ -108,7 +108,8 @@ Once the octeon board is UP with above ubuntu rootfs
 
  # hostnamectl hostname <hostname>
 
-* Update ubuntu repository to download dao packages
+Update ubuntu repository to download dao packages
+-------------------------------------------------
 
 .. code-block:: console
 
@@ -134,6 +135,25 @@ Installing OVS package (optional)
 
  # apt-get install ovs-3.3-cn10k-devel
 
+Removing old packages
+---------------------
+
+* Remove old packages
+
+.. code-block:: console
+
+ # apt-get remove dao-cn10k-devel -y
+ # apt-get remove dpdk-23.11-cn10k -y
+ # apt-get remove ovs-3.3-cn10k-devel -y
+
+* Clear ubuntu repo cache
+
+.. code-block:: console
+
+ # rm /var/cache/apt/archives/dao-cn10k-devel_*
+ # rm /var/cache/apt/archives/dpdk-23.11-cn10k_*
+ # rm /var/cache/apt/archives/ovs-3.3-cn10k-devel_*
+
 Installation demo
 -----------------
 

doc/guides/gsg/kernel.rst

@@ -69,7 +69,10 @@ Use the following configuration obtained from the DAO repository to configure th
 
  cp cn10k.config <path_to_kernel_directory>/arch/arm64/configs/
  cd <path_to_kernel_directory>
- make ARCH=arm64 marvell_v8_octeon_kernel_asim.config
+ make ARCH=arm64 cn10k.config
+
+.. note:: If above steps reports "The base file '.config' does not exist.  Exit." error.
+ As a workaround, ``touch .config`` in make kernel directory and retry the step.
 
 This generates a .config file which can be edited if a driver needs any
 changes in configuration such as enabling/disabling a driver, statically