Compiling the OpenVZ kernel (the Debian way)
Contents
Installing sources
To install the kernel-source and the OpenVZ kernel patch, run:
# apt-get install kernel-package linux-source-2.6.18 kernel-patch-openvz libncurses5-dev
For Debian version lenny and later you run the following instead:
# apt-get install kernel-package linux-source-2.6.18 linux-patch-openvz libncurses5-dev
or
# apt-get install kernel-package linux-source-2.6.24 linux-patch-openvz libncurses5-dev
Unpacking
Unpack the kernel source:
# cd /usr/src # tar xjf linux-source-2.6.18.tar.bz2 # cd linux-source-2.6.18
Kernel config
You need a kernel config. You can use the config of the debian-kernel:
# cp /boot/config-2.6.18-5-686 .config
Or get a 2.6.18 kernel configuration from http://download.openvz.org/kernel/branches/2.6.18/current/configs/ (depending on your architecture; the below example is for i686):
# wget http://download.openvz.org/kernel/branches/2.6.18/current/configs/kernel-2.6.18-i686.config.ovz -O .config
Patching and configuring
Now you can apply the openvz kernel patch and modify your kernel-config:
# ../kernel-patches/all/apply/openvz # make menuconfig
You need the following OpenVZ kernel config settings: (taken from OpenVZ Kernel 2.6.18-028test010.1 on 686)
Filesystem \_ [*] Second extended fs support (CONFIG_EXT2_FS) \_ [*] Ext3 journalling file system support (CONFIG_EXT3_FS) \_ [M] Quota Support (CONFIG_QUOTA) \_ [*] Compatibility with older quotactl interface (CONFIG_QUOTA_COMPAT) \_ [*]Quota format v2 support (CONFIG_QFMT_V2) \_ [*] VPS filesystem (CONFIG_SIM_FS) \_ [M] Virtuozzo Disk Quota support (CONFIG_VZ_QUOTA) \-> [*] Per-user and per-group quota in Virtuozzo quota partitions (VZ_QUOTA_UGID) Security \->[ ] Enable different security models OpenVZ ... (what else :-) \_[*] Virtual Environment support (CONFIG_VE) \_ <M> VE calls interface (CONFIG_VE_CALLS) \_ <M> VE networking (CONFIG_VE_NETDEV) \_ <M> Virtual ethernet device (CONFIG_VE_ETHDEV) \_ <M> VE device (CONFIG_VZ_DEV) \_ [*] VE netfiltering (CONFIG_VE_IPTABLES) \_ <M> VE watchdog module (CONFIG_VZ_WDOG) \_ <M> Checkpointing & restoring Virtual Environments (CONFIG_VZ_CHECKPOINT) User resources ... (User Beancounters) \_ [*] Enable user resource accounting (CONFIG_USER_RESOURCE) \_ [*] Account physical memory usage ( CONFIG_USER_RSS_ACCOUNTING) \_ [*] Account disk IO (CONFIG_UBC_IO_ACCT) \_ [*] Account swap usage (CONFIG_USER_SWAP_ACCOUNTING) \_ [*] Report resource usage in /proc (CONFIG_USER_RESOURCE_PROC) \_ [*] User resources debug features (CONFIG_UBC_DEBUG) \_ [*] Debug kmemsize with cache counters (CONFIG_UBC_DEBUG_KMEM)
Note: better to build the kernel-headers as well, so afterward other kernel-modules can
be built without whole kernel tree (e.g. drbd -> drbd0.7-module-source) |
See also : "make-kpkg --targets"
Compiling
Compile your kernel (as user root, or you need the --rootcmd!)
# make-kpkg --append_to_version=-1-openvz --added_patches=openvz --revision=1 --initrd binary-arch or all above with one step # make-kpkg --append_to_version=-1-openvz --added_patches=openvz --revision=1 --initrd --config menuconfig binary-arch
Installing
Install the kernel and update initramfs:
# dpkg -i ../linux-image-2.6.18-1-openvz_1_i386.deb # update-initramfs -c -k 2.6.18-1-openvz
Note: update-initramfs is done, when make-kpkg is use with --initrd option |
http://wiki.openvz.org/Installation_on_Debian_%28etch%29#Install_the_toolset
Note: update-grub can be configured by /etc/kernel-img.conf |
Bootloader
Update the bootloader (if not done before)
GRUB :
# /usr/sbin/update-grub
Note: since the Debian Etch release the location of update-grub is moved from /sbin/update-grub to /usr/sbin/update-grub |
LILO:
# lilo
Installing the Tools and Configuring
Continue with Installation on Debian#Installing the user-level tools