Hi , You can also check if BOOM boot manager can work with thin LVM. I really like that feature, since CentOS7.x Best Regards, Strahil NikolovOn Sep 27, 2019 12:39, Georgios <gpdsbe+centos at mailbox.org> wrote: > > Hi there! > > Im new here. > > Im trying to install Centos 8 on my laptop. I also want to have a > contingency plan in case something brakes. > > My first thoughts were to use LVM. > > The idea is that i would take multiple snapshots of the system during > the day/week and will keep them for a short time. > > I read RHEL documentation about how lvm works and pretty much understand > how to manage the above scenario with LVM snapshots and encryption. > If i understood lvm snapshots will cause delay the system after multiple > snapshots. The best way to avoid it is using thin snapshots. > > At rhel documentation it says that is possible for a non thin volume to > get a thin snapshots. > > [Correct me if my above assumptions are wrong or if there is a better > solution for my purpose.] > > So i created a group with 3 volumes groups and one thin pool. > > Im trying to take a snapshot and i get the message. > > "Cannot use writable LV as the external origin." > > I read somewhere that i should change it to read only and then take a > snapshot. Although that would be a problem i just try it to see if it > works. Then i got the message > > "Cannot use active LV for the external origin" > > Any ideas??? > > Thanks in advance > > Georgios > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos