Upgrading kernel: Difference between revisions
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Activate the new repo "elrepo-kernel" and then install the kernel-lt and kernel-lt-devel | Activate the new repo "elrepo-kernel" and then install the kernel-lt and kernel-lt-devel | ||
= Upgrading Kernel modules = | == Upgrading Kernel modules == | ||
If you are upgrading the kernel from 2.6 to 4.4, the GeoIP module requested is different. In this case, once the server restarts, the GeoIP module will fail to start and you may be locked out of your server. It can be a good idea to disable GeoIP support before performing the upgrade and then recompile the right module and then activate back GeoIP. | If you are upgrading the kernel from 2.6 to 4.4, the GeoIP module requested is different. In this case, once the server restarts, the GeoIP module will fail to start and you may be locked out of your server. It can be a good idea to disable GeoIP support before performing the upgrade and then recompile the right module and then activate back GeoIP. | ||
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cd /usr/local/src | cd /usr/local/src | ||
\rm -r xtables* | |||
wget http://devel.mirtapbx.com/mirtapbx_support/xtables-addons-2.10.tar.xz | wget http://devel.mirtapbx.com/mirtapbx_support/xtables-addons-2.10.tar.xz | ||
tar xvf xtables-addons-2.10.tar.xz | tar xvf xtables-addons-2.10.tar.xz | ||
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Dahdi module instead, is fully compatible between kernel versions | Dahdi module instead, is fully compatible between kernel versions | ||
= Updating Kernel modules = | == Updating Kernel modules == | ||
MiRTA PBX relies on two kernel modules, geoip and dahdi. The first allows to filter packets based on the geographical location, so you can avoid receiving call attempts from foreign countries, the second make conferences to work. When the kernel is upgraded, during a normal CentOS upgrade, these kernel modules will be not automatically regenerated for the new kernel. In this case, you need to reboot the server into new kernel and recompile both. | MiRTA PBX relies on two kernel modules, geoip and dahdi. The first allows to filter packets based on the geographical location, so you can avoid receiving call attempts from foreign countries, the second make conferences to work. When the kernel is upgraded, during a normal CentOS upgrade, these kernel modules will be not automatically regenerated for the new kernel. In this case, you need to reboot the server into new kernel and recompile both. | ||
Revision as of 15:06, 27 April 2019
MiRTA PBX is used to run on CentOS 6 or 7, 64bit.
Most modern servers have features that are working not optimal with the stock kernels. This is especially true for CentOS 6, having problems with large memory servers. To avoid these problems, it is possible to upgrade safely the servers to the latest stable Kernel 4.
Download the signature for repository Elrepo
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
Download the repo package:
For CentOS 6:
rpm -Uvh https://www.elrepo.org/elrepo-release-6-8.el6.elrepo.noarch.rpm
For CentOS 7:
rpm -Uvh https://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm
Activate the new repo "elrepo-kernel" and then install the kernel-lt and kernel-lt-devel
Upgrading Kernel modules
If you are upgrading the kernel from 2.6 to 4.4, the GeoIP module requested is different. In this case, once the server restarts, the GeoIP module will fail to start and you may be locked out of your server. It can be a good idea to disable GeoIP support before performing the upgrade and then recompile the right module and then activate back GeoIP.
If you are moving from kernel 2.6 to 4.4, once running kernel 4.4 perform the following steps:
cd /usr/local/src \rm -r xtables* wget http://devel.mirtapbx.com/mirtapbx_support/xtables-addons-2.10.tar.xz tar xvf xtables-addons-2.10.tar.xz cd xtables-addons-2.10 wget http://devel.mirtapbx.com/mirtapbx_support/mconfig_1.37 mv mconfig_1.37 mconfig ./configure ; make ; make install
Dahdi module instead, is fully compatible between kernel versions
Updating Kernel modules
MiRTA PBX relies on two kernel modules, geoip and dahdi. The first allows to filter packets based on the geographical location, so you can avoid receiving call attempts from foreign countries, the second make conferences to work. When the kernel is upgraded, during a normal CentOS upgrade, these kernel modules will be not automatically regenerated for the new kernel. In this case, you need to reboot the server into new kernel and recompile both.
Recompiling dahdi
Dahdi installation directory is in /usr/local/src, so it will be enough to run:
cd /usr/local/src/dahdi* make make install service dahdi restart
Recompiling geoip
GeoIP installation directory is in /usr/local/src, so it will be enough to run:
cd /usr/local/src/xtables* ./configure make make install