Creating OpenVZ LiveCD based on Centos 4.4 - Revision history

Kir: Reverted edits by 3qdesigns123 (Talk) to last revision by Kirshil

2010-08-26T07:55:06Z

Reverted edits by 3qdesigns123 (Talk) to last revision by Kirshil

2010-08-26T05:28:51Z

2008-07-07T07:17:56Z

‎Technical details

2008-07-07T07:06:57Z

‎Vmlinux, initrd and isolinux.cfg

2008-07-07T06:39:37Z

‎Compressing '''booted''' LiveCD filesystem

2008-07-07T06:38:58Z

‎Install all these finally

2008-07-06T16:07:22Z

‎Creating booted LiveCD root filesystem

2008-07-06T15:54:35Z

‎Creating booted LiveCD root filesystem

2007-08-04T00:31:07Z

link ‎Debugging LiveCD

2007-08-03T23:58:55Z

fixes ‎Vmlinux, initrd and isolinux.cfg

@@ Line 567: / Line 567: @@
 * [http://squashfs.sourceforge.net/ squashfs website]
 * [http://www.filesystems.org/project-unionfs.html uninonfs official homepage]
 [[Category: HOWTO]]
 [[Category: Live CD]]

@@ Line 567: / Line 567: @@
 * [http://squashfs.sourceforge.net/ squashfs website]
 * [http://www.filesystems.org/project-unionfs.html uninonfs official homepage]
 [[Category: HOWTO]]
 [[Category: Live CD]]

@@ Line 28: / Line 28: @@
 This part contains detailed description of LiveCD creation. I've removed the output of some
 commands in order to simplify the reading.
 === Creating booted LiveCD root filesystem ===

@@ Line 412: / Line 412: @@
 than 8 characters) to kernel image, otherwise <tt>isolinux</tt> will not see it.
 <pre>
-# cp root/boot/vmlinuz-2.6.18-ovz028stab035.1-smp ovz-livecd/boot/ovz18
+# cp livecd-root/boot/vmlinuz-2.6.18-ovz028stab035.1-smp ovz-livecd/boot/ovz18
 </pre>
 Modify initrd image. More precisely, we need to add OpenVZ kernel modules there
@@ Line 441: / Line 441: @@
 Copy modules to initrd:
 <pre>
-# cp -r ../root/lib/modules/2.6.18-ovz028stab035.1-smp/ mount/lib/modules/
+# cp -r ../livecd-root/lib/modules/2.6.18-ovz028stab035.1-smp/ mount/lib/modules/
 # rm -rf mount/lib/modules/2.6.18-ovz028stab035.1-smp/build                 # we don't neet it on initrd image
 </pre>
@@ Line 484: / Line 484: @@
 # umount mount/
 # gzip initrd
-# /bin/cp initrd.gz ../ovz-livecd/boot/initrd.gz
+# cp initrd.gz ../ovz-livecd/boot/initrd.gz
 # cd ..
 </pre>

@@ Line 403: / Line 403: @@
 # rm -f ovz-livecd/base/*.mo
 # for f in bin etc lib root sbin usr var vz; do \
-     mksquashfs root/$f ovz-livecd/base/$f.mo -keep-as-directory; \
+     mksquashfs livecd-root/$f ovz-livecd/base/$f.mo -keep-as-directory; \
    done
 </pre>

@@ Line 336: / Line 336: @@
 <tt>tetex</tt>, <tt>latex</tt>, <tt>k3b</tt> and printing related packages:
 <pre>
-# cp -r to_booted_livecd/ root/tmp/
+# cp -r to_booted_livecd/ livecd-root/tmp/
-# chroot root/
+# chroot livecd-root/
 # rpm -e lksctp-tools-1.0.2-6.4E.1.i386
@@ Line 377: / Line 377: @@
 Clean it:
 <pre>
-# rm root/root/.bash_history
+# rm livecd-root/root/.bash_history
 </pre>
 Here we have to make one step to workaround [[Checkpointing and live migration]] problem. The thing is that at the moment
@@ Line 388: / Line 388: @@
 on this directory:
 <pre>
-mkdir root/vz/private/
+mkdir livecd-root/vz/private/
 </pre>
 At the moment vzquota doesn't support <tt>tmpfs</tt> ([http://bugzilla.openvz.org/show_bug.cgi?id=558  Bug #558]).

@@ Line 106: / Line 106: @@
 # cd livecd-root
 # mkdir dev
-# cp -a /dev/* root/dev
+# cp -a /dev/* dev/
 # mkdir proc
 # mount -t proc proc proc/

@@ Line 109: / Line 109: @@
 # mkdir proc
 # mount -t proc proc proc/
-# mkdir root/sys
+# mkdir sys
 # mount -t sysfs sysfs sys/
 # mkdir tmp

@@ Line 548: / Line 548: @@
 console=ttyS0,115200 console=tty
 </pre>
 == External Links ==

@@ Line 429: / Line 429: @@
 # mount -o loop initrd-old mount-old/
 # dd if=/dev/zero of=initrd bs=1048576 count=100
 # mkdir mount
 # mount -o loop initrd mount/
@@ Line 510: / Line 514: @@
 Also '''don't forget''' to change <tt>ramdisk_size</tt> to 102400 for all kernels including Centos 4.4 default!
-And I suggest to remove <tt>quite</tt> parameter, to see what happens: it will help greatly if some problem will happen.
+And I suggest to remove <tt>quiet</tt> parameter, to see what happens: it will help greatly if some problem will happen.
 === Embellishment ===