On Wed, Dec 02, 2015 at 08:53:39PM +0100, Axel Glienke wrote: > Creating snapshot: > > [root@lvmtest ~]# lvcreate -L5G -s -n root_snap /dev/centos/root > Reducing COW size 5,00 GiB down to maximum usable size 2,94 GiB. > Logical volume "root_snap" created. > [root@lvmtest ~]# lvs > LV VG Attr LSize Pool Origin Data% Meta% Move > Log Cpy%Sync Convert > root centos owi-aos--- 2,93g > root_snap centos swi-a-s--- 2,94g root 0,00 > swap centos -wi-ao---- 1,00g > > --- reboot --- > > dracut shell (missing /dev/centos/root) > > cat proc/cmdline: > BOOT_IMAGE=/vmlinuz-3.10.0-229.20.1.el7.x86_64 > root=/dev/mapper/centos_root ro rd.lvm.lv=centos/root > rd.lvm.lv=centos/swap crashkernel=auto rhgb quiet LANG=de_DE.UTF-8 > systemd.debug shouldn't you have a new grub entry with: root=/dev/mapper/root_snap rd.lvm.lv=centos/root_snap Tru -- Tru Huynh http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B
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