Re: [Rdo-list] Automatic resizing of root partitions in RDO Icehouse

Hi I use oz create centos image, work perfect for openstack, support resize. the step is very simple 1: hareware machine, install centos6.5 disable selinux enable epel 2: install OZ yum -y install oz modify the oz setting , let default image is qcow2 /etc/oz/oz.cfg image_type = qcow2 restart machine. 3: create two file centos6.ks and centos65.tdl check the attachment. you only need change http://172.28.0.1/cobbler/ks_mirror/CentOS6.5-x86_64/ to like below link http://mirrors.163.com/centos/6.5/os/x86_64/ 4: run the command oz-install -p -u -d3 -a centos6.ks centos65.tdl the image would store /var/lib/libvirt/images 5: compress the image qemu-img convert -c /var/lib/libvirt/images/centos_65_x86_64.qcow2 -O qcow2 \ /root/centos_65_x86_64.qcow2 Now the image is ok, upload to openstack the image only support key login username is cloud-user you can check the centos6.ks ,the ks is change from http://repos.fedorapeople.org/repos/openstack/guest-images/ I also upload the image, you can try it. http://yunpan.cn/QiQ6syasRAH7Q password: 90e3 On Thu, May 8, 2014 at 11:48 AM, Kashyap Chamarthy <kchamart(a)redhat.com&gt;wrote: > On Wed, May 07, 2014 at 02:31:43PM +0000, St. George, Allan L. wrote: > > I haven’t had the time to work with Icehouse yet, but I have outlined > > instruction that are used to create Havana CentOS images that resize > > automatically upon spawning via linux-rootfs-resize. > > > > If interested, I’ll forward it along. > > That'd be useful. It'd be even better if you could make a quick RDO wiki > page[1] that'll be indexed by the search engines. > > > [1] http://openstack.redhat.com/ > > PS: If you're a Markdown user, you can convert Markdown -> WikiMedia > (RDO uses WikiMedia for wiki) trivially like this: > > $ pandoc -f markdown -t Mediawiki foo.md -o foo.wiki > > > > > From: rdo-list-bounces(a)redhat.com [mailto:rdo-list-bounces@redhat.com] > > On Behalf Of Elías David Sent: Tuesday, May 06, 2014 12:57 PM To: > > Kashyap Chamarthy Cc: rdo-list(a)redhat.com Subject: Re: [Rdo-list] > > Automatic resizing of root partitions in RDO Icehouse > > > > > > Hi thanks for the answers! > > > > But how is the support right now in OpenStack with centos/fedora > > images regarding the auto resizing during boot? does the disk size set > > in the flavor is respected or not, or does it work only with fedora > > and newer kernels than what CentOS uses...things like that is what I'm > > looking for On May 6, 2014 4:09 AM, "Kashyap Chamarthy" > > <kchamart@redhat.com<mailto:kchamart@redhat.com>> wrote: On Mon, May > > 05, 2014 at 10:22:26PM -0430, Elías David wrote: > > > Hello all, > > > > > > I would like to know what's the current state of auto resizing the > > > root partition in current RDO Icehouse, more specifically, CentOS > > > and Fedora images. > > > > > > I've read many versions of the story so I'm not really sure what > > > works and what doesn't. > > > > > > For instance, I've read that currently, auto resizing of a CentOS > > > 6.5 image for would require the filesystem to be ext3 and I've also > > > read that auto resizing currently works only with kernels >= 3.8, so > > > what's really the deal with this currently? > > > > > > Also, it's as simple as having cloud-init, dracut-modules-growroot > > > and cloud-initramfs-tools installed on the image or are there any > > > other steps required for the auto resizing to work? > > > > > > I personally find[1] virt-resize (which works the same way on any > > images) very useful when I'd like to do resizing, as it works > > consistent well. > > > > I just tried on a Fedora 20 qcow2 cloud image with these below four > > commands and their complete output. > > > > 1. Examine the root filesystem size _inside_ the cloud image: > > > > $ virt-filesystems --long --all -h -a fedora-latest.x86_64.qcow2 > > > > Name Type VFS Label MBR Size Parent /dev/sda1 > > filesystem ext4 _/ - 1.9G - /dev/sda1 partition - > > - 83 1.9G /dev/sda /dev/sda device - - - > > 2.0G - > > > > 2. Create a new qcow2 disk of 10G: > > > > $ qemu-img create -f qcow2 -o preallocation=metadata \ > > newdisk.qcow2 10G > > > > 3. Perform the resize operation: > > > > $ virt-resize --expand /dev/sda1 fedora-latest.x86_64.qcow2 \ > > newdisk.qcow2 Examining fedora-latest.x86_64.qcow2 ... ********** > > > > Summary of changes: > > > > /dev/sda1: This partition will be resized from 1.9G to 10.0G. The > > filesystem ext4 on /dev/sda1 will be expanded using the > > 'resize2fs' method. > > > > ********** Setting up initial partition table on newdisk.qcow2 ... > > Copying /dev/sda1 ... 100% > > > ⟦▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒⟧ > > 00:00 Expanding /dev/sda1 using the 'resize2fs' method ... > > > > Resize operation completed with no errors. Before deleting the > > old disk, carefully check that the resized disk boots and works > > correctly. > > > > 4. Examine the root file system size in the new disk (should reflect > > correctly): > > > > $ virt-filesystems --long --all -h -a newdisk.qcow2 Name > > Type VFS Label MBR Size Parent /dev/sda1 filesystem > > ext4 _/ - 10G - /dev/sda1 partition - - 83 > > 10G /dev/sda /dev/sda device - - - 10G - > > > > > > Hope that helps. > > > > > > [1] > > > http://kashyapc.com/2013/04/13/resize-a-fedora-19-guest-with-libguestfs-t... > > > > > > > > -- /kashyap > > > _______________________________________________ > > Rdo-list mailing list > > Rdo-list(a)redhat.com > > https://www.redhat.com/mailman/listinfo/rdo-list > > > -- > /kashyap > > _______________________________________________ > Rdo-list mailing list > Rdo-list(a)redhat.com > https://www.redhat.com/mailman/listinfo/rdo-list > -- Shake Chen