Difference between revisions of "Centos Upgrade 4.x to 5.x"
m (I had several problems following this howto on my Centos-5 64-bit host, I added some notes to the problematic sections.) |
(vps, ve -> container) |
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| Line 1: | Line 1: | ||
| − | To create a | + | To create a CentOS 5 minimal template from centos-4-i386-minimal, |
| + | follow these steps: | ||
| − | 1 - Create a | + | 1 - Create a container using centos-4-i386-minimal and set a valid nameserver |
<pre> | <pre> | ||
| − | vzctl create | + | vzctl create CTID --ostemplate centos-4-i386-minimal --config CONFIG_TEMPLATE --ipadd container_IP --hostname temp |
| − | vzctl set | + | vzctl set CTID --nameserver NAMESERVER_IP --save |
</pre> | </pre> | ||
| − | 2 - Enter in | + | 2 - Enter in container |
<pre> | <pre> | ||
| − | vzctl enter | + | vzctl enter CTID |
</pre> | </pre> | ||
3 - Install centos-5-release packages | 3 - Install centos-5-release packages | ||
| Line 25: | Line 26: | ||
rpm -Uvh http://mirror.centos.org/centos/5.0/os/i386/CentOS/initscripts-8.45.14.EL-1.el5.centos.1.i386.rpm --force --nodeps | rpm -Uvh http://mirror.centos.org/centos/5.0/os/i386/CentOS/initscripts-8.45.14.EL-1.el5.centos.1.i386.rpm --force --nodeps | ||
</pre> | </pre> | ||
| − | 6 - Exit from | + | 6 - Exit from container |
<pre> | <pre> | ||
exit | exit | ||
</pre> | </pre> | ||
| − | 7 - Upgrade | + | 7 - Upgrade container packages using vzyum (32bit only) |
<pre> | <pre> | ||
| − | vzyum | + | vzyum CTID upgrade |
</pre> | </pre> | ||
Note: on 64-bit yum db-version might complain. Do "rm /vz/root/VZNUM/var/lib/rpm/__*" to delete conflicting DB. | Note: on 64-bit yum db-version might complain. Do "rm /vz/root/VZNUM/var/lib/rpm/__*" to delete conflicting DB. | ||
| Line 37: | Line 38: | ||
8 - Stop your VE | 8 - Stop your VE | ||
<pre> | <pre> | ||
| − | vzctl stop | + | vzctl stop CTID |
</pre> | </pre> | ||
9 - Replace the new /dev/ with the old one | 9 - Replace the new /dev/ with the old one | ||
<pre> | <pre> | ||
| − | cd /vz/private/ | + | cd /vz/private/CTID |
rm -rf dev | rm -rf dev | ||
tar -xvf dev.tar | tar -xvf dev.tar | ||
</pre> | </pre> | ||
| − | 10 - Leave the | + | 10 - Leave the container private dir (or it will not stard) |
<pre> | <pre> | ||
cd | cd | ||
</pre> | </pre> | ||
| − | 11 - Start the | + | 11 - Start the container |
<pre> | <pre> | ||
| − | vzctl start | + | vzctl start CTID |
</pre> | </pre> | ||
| − | 12 - Remove | + | 12 - Remove container IP |
<pre> | <pre> | ||
| − | vzctl set --ipdel | + | vzctl set --ipdel container_IP |
</pre> | </pre> | ||
| − | 13 - Stop | + | 13 - Stop container |
<pre> | <pre> | ||
| − | vzctl stop | + | vzctl stop CTID |
</pre> | </pre> | ||
14 - Create the template | 14 - Create the template | ||
<pre> | <pre> | ||
| − | cd /vz/private/ | + | cd /vz/private/CTID |
tar -zcf /vz/template/cache/centos-5.0-i386-minimal.tar.gz . | tar -zcf /vz/template/cache/centos-5.0-i386-minimal.tar.gz . | ||
</pre> | </pre> | ||
Revision as of 11:13, 9 April 2008
To create a CentOS 5 minimal template from centos-4-i386-minimal, follow these steps:
1 - Create a container using centos-4-i386-minimal and set a valid nameserver
vzctl create CTID --ostemplate centos-4-i386-minimal --config CONFIG_TEMPLATE --ipadd container_IP --hostname temp vzctl set CTID --nameserver NAMESERVER_IP --save
2 - Enter in container
vzctl enter CTID
3 - Install centos-5-release packages
rpm -Uvh http://mirror.centos.org/centos/5.0/os/i386/CentOS/centos-release-notes-5.0.0-2.i386.rpm rpm -Uvh http://mirror.centos.org/centos/5.0/os/i386/CentOS/centos-release-5-0.0.el5.centos.2.i386.rpm
Note: centos-release-5 depends on notes-package, start with that one.
4 - Backup your /dev/, since initscripts need udev and will remove vzdev you'll net the backup
tar -cf dev.tar ./dev
5 - Install initscripts package (forced and with no deps)
rpm -Uvh http://mirror.centos.org/centos/5.0/os/i386/CentOS/initscripts-8.45.14.EL-1.el5.centos.1.i386.rpm --force --nodeps
6 - Exit from container
exit
7 - Upgrade container packages using vzyum (32bit only)
vzyum CTID upgrade
Note: on 64-bit yum db-version might complain. Do "rm /vz/root/VZNUM/var/lib/rpm/__*" to delete conflicting DB.
8 - Stop your VE
vzctl stop CTID
9 - Replace the new /dev/ with the old one
cd /vz/private/CTID rm -rf dev tar -xvf dev.tar
10 - Leave the container private dir (or it will not stard)
cd
11 - Start the container
vzctl start CTID
12 - Remove container IP
vzctl set --ipdel container_IP
13 - Stop container
vzctl stop CTID
14 - Create the template
cd /vz/private/CTID tar -zcf /vz/template/cache/centos-5.0-i386-minimal.tar.gz .
