Well with my setup I do have the boot partition separate from the LVM and the raid is pure software as far as I know. I was just asking if it was safe to do so. Unfortunately the boot partition is a bit on the smaller size at 100mb so I can easily fit around 2 kernels. I guess the other reason I am thinking to switch is because with Ubuntu, they have a predictable release schedule and with 12.04 LTS around the corner, I can get a server OS that is "stable" and up to date. I know I can compile from source all of the packages I have, like the the kernel and the software for the LAMP stack that I am also running. I also like the fact for the Ubuntu implementation of Samba; I can use the the system username and password instead of first creating a user on the system and again as a samba user. Other than that I do like Centos right now. Thanks for your help. On Wed, Mar 21, 2012 at 7:21 PM, Michael Butash wrote: > Should be able to - depends how you're partitioned. > > I'm assuming your raid0 is done with mdadm and not fake-raid based. > > As long as your boot partition (non-lvm) is large enough to support enough > kernels, you should be able to install over the system lv's you don't want, > and not touch the ones that you do. Probably just create new lv's assuming > you have the space for new root, usr, var, whatever you want. I usually > create home without a separate partition, leaving alone the existing home, > and simply mount the /home lv after reinstall "just in case". > > Note I've had some weirdness with ubuntu/mdadm depending what version > mdadm metadata it was built with. In 11.04 I had to build md's > specifically to use 0.90 metadata to work fully (i.e. reboot without having > to busybox assemble md manually), 11.10 and higher I had to build the raid > specifically with the current version (default) to work. > > I layered luks/lvm/ext4 atop this too, never did figure out exactly which > was borking it, but the metadata was the trick for me. It also could have > been related to my ssd alignment partitioning that always gave me grief > with low-level fs. > > -mb > > > > On 03/21/2012 03:19 PM, Stephen wrote: > >> if it boots up and sees the LVM then you should be able to customer >> partition and configure without reformatting. >> >> you can look and see a fair amount without even writing changes to the >> disk. >> >> However i would still make a backup. >> >> On Wed, Mar 21, 2012 at 1:55 PM, Nadim Hoque >> wrote: >> >>> I currently have Centos 6 installed with software raid 0 with LVM. I was >>> wondering if it is possible to install Ubuntu server 10.04 with those >>> settings without data loss and that the current raid/lvm will stay in >>> tact. >>> So far in my experience I should be able to do this, but I just wanted >>> your >>> input on the matter. I might switch to ubuntu server for the vast number >>> of >>> packages in the default repos and when I used it before I really liked >>> it (I >>> love how the default repos have what I want, and ufw is nice as well). >>> >>> -- >>> Nadim Hoque >>> Undergraduate Intern >>> ASU Advanced Computing Center >>> Cell: 480-518-6235 >>> >>> ------------------------------**--------------------- >>> PLUG-discuss mailing list - PLUG-discuss@lists.plug.**phoenix.az.us >>> To subscribe, unsubscribe, or to change your mail settings: >>> http://lists.PLUG.phoenix.az.**us/mailman/listinfo/plug-**discuss >>> >> >> >> >> ------------------------------**--------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.**phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.**us/mailman/listinfo/plug-**discuss > -- Nadim Hoque Undergraduate Intern ASU Advanced Computing Center Cell: 480-518-6235