Denis Hohryakov at 21:25, 29 October 2013

2013-10-29T21:25:29Z

Denis Hohryakov: /* HowTo Upgrade OVZ CentOS-5.x-based host-node from vzkernel-2.6.18(stab) to vzkernel-2.6.32(stab) and convert fs from ext3 to ext4 */ new section

2013-10-29T21:07:53Z

‎HowTo Upgrade OVZ CentOS-5.x-based host-node from vzkernel-2.6.18(stab) to vzkernel-2.6.32(stab) and convert fs from ext3 to ext4: new section

Kir: Welcome!

2013-10-29T19:31:29Z

Welcome!

New page

'''Welcome to ''OpenVZ Linux Containers Wiki''!'''
We hope you will contribute much and well.
You will probably want to read the [[Help:Contents|help pages]].
Again, welcome and have fun! [[User:Kir|Kir]] ([[User talk:Kir|talk]]) 15:31, 29 October 2013 (EDT)

@@ Line 11: / Line 11: @@
 . Update your system
-. At /etc/yum.repos.d/openvz.repo do this changes.</nowiki>
+. At /etc/yum.repos.d/openvz.repo do this changes.
     [openvz-kernel-rhel6]

← Older revision		Revision as of 21:07, 29 October 2013
Line 3:		Line 3:
	You will probably want to read the [[Help:Contents\|help pages]].		You will probably want to read the [[Help:Contents\|help pages]].
	Again, welcome and have fun! [[User:Kir\|Kir]] ([[User talk:Kir\|talk]]) 15:31, 29 October 2013 (EDT)		Again, welcome and have fun! [[User:Kir\|Kir]] ([[User talk:Kir\|talk]]) 15:31, 29 October 2013 (EDT)
		+
		+	== HowTo Upgrade OVZ CentOS-5.x-based host-node from vzkernel-2.6.18(stab) to vzkernel-2.6.32(stab) and convert fs from ext3 to ext4 ==
		+
		+
		+	It is very simple.
		+
		+	1. Update your system
		+
		+	2. At /etc/yum.repos.d/openvz.repo do this changes.</nowiki>
		+
		+	[openvz-kernel-rhel6]
		+	name=OpenVZ RHEL6-based stable kernels
		+	#baseurl=http://download.openvz.org/kernel/branches/rhel6-2.6.32/current/
		+	mirrorlist=http://download.openvz.org/kernel/mirrors-rhel6-2.6.32
		+	'''enabled=1'''
		+	gpgcheck=1
		+	gpgkey=http://download.openvz.org/RPM-GPG-Key-OpenVZ
		+	'''#exclude=vzkernel-firmware'''
		+
		+	[openvz-kernel-rhel5]
		+	name=OpenVZ RHEL5-based kernel
		+	#baseurl=http://download.openvz.org/kernel/branches/rhel5-2.6.18/current/
		+	mirrorlist=http://download.openvz.org/kernel/mirrors-rhel5-2.6.18
		+	'''enabled=0'''
		+	gpgcheck=1
		+	gpgkey=http://download.openvz.org/RPM-GPG-Key-OpenVZ
		+
		+
		+	3. Install new 2.6.32 kernlel
		+
		+	# yum install vzkernel.x86_64
		+
		+	4. Check grub.conf
		+
		+	cat /boot/grub/grub.conf
		+
		+	#
		+	# Hetzner Online AG - installimage
		+	# GRUB bootloader configuration file
		+	#
		+	timeout 5
		+	default 0
		+	title OpenVZ (2.6.32-042stab081.5)
		+	root (hd0,1)
		+	kernel /vmlinuz-2.6.32-042stab081.5 ro root=/dev/sda3 vga=0x317 selinux=0 sysfs.deprecated=1
		+	initrd /initrd-2.6.32-042stab081.5.img
		+	title OpenVZ (2.6.18-348.16.1.el5.028stab108.1)
		+	root (hd0,1)
		+	kernel /vmlinuz-2.6.18-348.16.1.el5.028stab108.1 ro root=/dev/sda3 vga=0x317 selinux=0
		+	initrd /initrd-2.6.18-348.16.1.el5.028stab108.1.img
		+
		+	If all are correct reboot to new kernel
		+
		+	5. Time to convert FS. Boot node from live-CD or in Rescue system and perform the following steps
		+
		+	fsck.ext3 -f /dev/sda(x)
		+	Turn on ext4 features
		+
		+	tune2fs -O extents,uninit_bg,dir_index /dev/sda(x)
		+	Check new ext4 FS
		+
		+	fsck.ext4 -fD /dev/sda(x)
		+	After that mount partition and edit /etc/fstab, then rebuild initrd image whith ext4 support.
		+	NOTE! For 2.6.32 kernels no suitable modules ehci-hcd, ohci-hcd, uhci-hcd. You must specify it in rebuild!
		+
		+	mkinitrd -v -f --with=ext4 --builtin=ehci-hcd --builtin=ohci-hcd --builtin=uhci-hcd initrd-2.6.32-042stab81.5.img 2.6.32-042stab081.5
		+	6. Reboot to running kernel and enjoy new kernel and FS.
		+
		+	[root@CentOS-58-64-minimal ~]# cat /etc/issue
		+	CentOS release 5.10 (Final)
		+	Kernel \r on an \m
		+	[root@CentOS-58-64-minimal ~]# uname -a
		+	Linux CentOS-58-64-minimal 2.6.32-042stab081.5 #1 SMP Mon Sep 30 16:52:24 MSK 2013 x86_64 x86_64 x86_64 GNU/Linux
		+	[root@CentOS-58-64-minimal ~]# df -Th
		+	Filesystem Type Size Used Avail Use% Mounted on
		+	/dev/sda3 ext4 259G 1.5G 244G 1% /
		+	tmpfs tmpfs 16G 0 16G 0% /dev/shm
		+	/dev/sda2 ext3 496M 46M 425M 10% /boot
		+	/dev/sdb1 ext4 1.8T 196M 1.7T 1% /vz
		+	[root@CentOS-58-64-minimal ~]#

User talk:Denis Hohryakov - Revision history

Denis Hohryakov at 21:25, 29 October 2013

Denis Hohryakov: /* HowTo Upgrade OVZ CentOS-5.x-based host-node from vzkernel-2.6.18(stab) to vzkernel-2.6.32(stab) and convert fs from ext3 to ext4 */ new section

Kir: Welcome!