Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

Post History

60%
+1 −0
Q&A How to refresh lvm-backed virtual disk in libvirt

How can I grow a libvirtd VM's LVM-backed virtual disk online, without rebooting the vm. My host has an LVM VG for VMs. Each VM disk is an LV to the host. It's easy to grow the VG by adding a PV...

1 answer  ·  posted 1y ago by re89j‭  ·  last activity 1y ago by re89j‭

#1: Initial revision by user avatar re89j‭ · 2023-02-23T06:45:28Z (over 1 year ago)
How to refresh lvm-backed virtual disk in libvirt
How can I grow a libvirtd VM's LVM-backed virtual disk online, without rebooting the vm.

My host has an LVM VG for VMs.  Each VM disk is an LV to the host.

It's easy to grow the VG by adding a PV and extending the LV.  But the VM doesn't "see" the new space without rebooting.

How can I get the VM to see the larger space without rebooting the VM?