Difference between revisions of "Centos Upgrade 4.x to 5.x"
(→In /vz/template/centos/4/i386/config/yum.conf change mirrors to CentOS 5: improved+sed usage) |
(→Upgrade container packages using vzyum (32bit only): improved) |
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</pre> | </pre> | ||
| − | ==Upgrade container packages | + | ==Upgrade container packages== |
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| + | db-version will complain, so delete the conflicting database first: | ||
| + | <pre> | ||
| + | rm /vz/root/$CTID/var/lib/rpm/__* | ||
| + | </pre> | ||
| + | |||
| + | Now run vzyum to upgrade the contain packages: | ||
<pre> | <pre> | ||
vzyum $CTID upgrade | vzyum $CTID upgrade | ||
</pre> | </pre> | ||
| − | |||
==Stop your VE== | ==Stop your VE== | ||
Revision as of 12:54, 2 June 2011
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Note: this article is not formatted according to this Wiki standards. Please help reformatting it in a better way. |
To create a CentOS 5 minimal template from centos-4-i386-minimal, follow these steps:
Contents
- 1 Create a container using centos-4-i386-minimal and set a valid nameserver
- 2 Enter container
- 3 Install centos-5-release packages
- 4 Backup your /dev/, since initscripts need udev and will remove vzdev you'll net the backup
- 5 Install initscripts package (forced and with no deps)
- 6 Exit from container
- 7 Update conf file
- 8 Copy existing template
- 9 Update yum.conf
- 10 Upgrade container packages
- 11 Stop your VE
- 12 Replace the new /dev/ with the old one
- 13 Leave the container private dir (or it will not start)
- 14 Start the container
- 15 Remove container IP
- 16 Stop container
- 17 Create the template
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
Enter container
vzctl enter $CTID
Install centos-5-release packages
rpm -Uvh http://mirror.centos.org/centos/5/os/i386/CentOS/centos-release-notes-5.6-0.i386.rpm \ http://mirror.centos.org/centos/5/os/i386/CentOS/centos-release-5-6.el5.centos.i386.rpm
Note: centos-release-5 depends on notes-package, start with that one.
Backup your /dev/, since initscripts need udev and will remove vzdev you'll net the backup
tar -cf dev.tar ./dev
Install initscripts package (forced and with no deps)
rpm -Uvh http://mirror.centos.org/centos/5/os/i386/CentOS/initscripts-8.45.33-1.el5.centos.i386.rpm --force --nodeps
Note: If the "transfer failed", go to the CentOS5 mirror and find the latest initscripts rpm and use that instead.
Exit from container
exit
Update conf file
Edit /etc/vz/conf/$CSID.conf and replace
OSTEMPLATE="centos-4-i386-minimal"
with
OSTEMPLATE="centos-5-i386-minimal"
Alternatively, use the 'sed' command to replace it:
sed -i 's#OSTEMPLATE="centos-4#OSTEMPLATE="centos-5#g' /etc/vz/conf/$CSID.conf
Copy existing template
Copy existing template from:
/vz/template/centos/4
to
/vz/template/centos/5
Update yum.conf
In /vz/template/centos/5/i386/config/yum.conf change mirrors to CentOS 5
Using sed:
sed -i 's#centos4#centos5#g' /vz/template/centos/5/i386/config/yum.conf sed -i 's#CentOS 4#CentOS 5#g' /vz/template/centos/5/i386/config/yum.conf sed -i 's#centos/4/#centos/5/#g' /vz/template/centos/5/i386/config/yum.conf
Upgrade container packages
db-version will complain, so delete the conflicting database first:
rm /vz/root/$CTID/var/lib/rpm/__*
Now run vzyum to upgrade the contain packages:
vzyum $CTID upgrade
Stop your VE
vzctl stop $CTID
Replace the new /dev/ with the old one
cd /vz/private/$CTID rm -rf dev tar -xvf dev.tar
Leave the container private dir (or it will not start)
cd
Start the container
vzctl start $CTID
Remove container IP
vzctl set $CTID --ipdel all --save
Stop container
vzctl stop $CTID
Create the template
cd /vz/private/$CTID tar --numeric-owner -zcf /vz/template/cache/centos-5.5-i386-minimal.tar.gz .
