ok, thank you very much Gordon.
but you know what the difference?
if i do
1. centos7 installation
2. yum upgrade
3. lvcreate -s ...
4. reboot
then i got the error.
if i do your way
1. centos7 installtion
2. snapshot & reboot
3. yum upgrade
4. reboot
then the system start.
Zitat von Gordon Messmer <gordon.messmer@xxxxxxxxx>:
On 12/02/2015 12:05 PM, Axel Glienke wrote:
in journalctl i found:
modprobe: FATAL: Module dm-snapshot not found
...
Can't process LV root_snap: snapshot target support missing from kernel
I installed a very simple CentOS 7 system with an LVM root FS.
Created a snapshot and rebooted, no problem. Updated dracut, then
updated everything else and rebooted, no problem.
As far as I can tell, dracut normally includes the entire kernel
module tree under kernel/drivers/md, which should provide the
dm-snapshot module required to complete the boot sequence.
I can't determine what's causing the problem you see, but it doesn't
appear to affect a standard installation.
Try:
dracut --force --debug > /var/tmp/dracut.txt 2>&1
Upload /var/tmp/dracut.txt to http://paste.fedoraproject.org/. I'll
see if I spot anything useful.
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Grüße
Axel
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