Problem proxmox change vmbr to VM in hotplug

[maykel535]

HI, I have installed the proxmox 2.3. I have installed ubuntu in VM kvm with network virtual vmbr0 to net0 for VM. Ii's works very well. But I like change the vmbr0 to vmbr4 in hotplug...

I saw this link http://pve.proxmox.com/wiki/Manual:_vm.conf

Exactly:

hotplug: boolean
Allow hotplug for disk and network device Default value is '0'.

I'm interesting in network.

But I get this error with change vmbr0 to vmbr4 in hotplug:

VM 403 qmp command 'netdev_del' failed - Device 'net0' not found (500)

Could do otherwise? Can I help me please? Is possible?

I like very much proxmox, I've been using a long time

Sorry for my english.

Thanks in advanced.

 

[spirit]

Hi, that mean that net0 was not see by qemu.

Maybe do you have:

boot vm
add net0
enable hotplug:1 in config
then try to change vmbr.

In this case, net0 was not seen by qemu. (you should enable hotplug before add net0 nic)

 

[maykel535]

Hi, that mean that net0 was not see by qemu.

Maybe do you have:

boot vm
add net0
enable hotplug:1 in config
then try to change vmbr.

In this case, net0 was not seen by qemu. (you should enable hotplug before add net0 nic)

Very thanks. Tomorrow I will probe this and I will comment.

Thanks.

 

[maykel535]

Hi, that mean that net0 was not see by qemu.

Maybe do you have:

boot vm
add net0
enable hotplug:1 in config
then try to change vmbr.

In this case, net0 was not seen by qemu. (you should enable hotplug before add net0 nic)

I try this:

1- Stop VM
2- Erase net0 --> vmbr0 in the VM
3- Add to vm.conf "hotplug: 1"
4- Add new net0 --> vmbr0
5- Start vm
6- Try change change net0 --> vmbr0 to vmbr4
7- I get this error: error hot-unplug net0 for update at /usr/share/perl5/PVE/API2/Qemu.pm line 754. (500)

More info:

root@virtual3:/etc/pve/qemu-server# pveversion
pve-manager/2.3/7946f1f1


root@virtual3:/etc/pve/qemu-server# cat 403.conf
bootdisk: ide0
cores: 1
hotplug: 1
ide0: local:403/vm-403-disk-1.qcow2,size=32G
ide2: local:iso/ubuntu-12.10-server-amd64.iso,media=cdrom,size=689M
memory: 512
name: national-express.mo2o.com
net0: e1000=9A:BB:E7:48:E9:F8,bridge=vmbr0
onboot: 1
ostype: l26
sockets: 1


Thanks in advanced.

 

[maykel535]

Ummm:

http://pve.proxmox.com/pipermail/pve-devel/2013-March/006741.html

Could try apply this patch??

Might with version 3.1 solved this?

Thanks.

 

[pirateghost]

I don't understand. I hotplug my network bridges all the time and have never had to edit a conf file.

Sent from my Galaxy Nexus

 

[maykel535]

I don't understand. I hotplug my network bridges all the time and have never had to edit a conf file.

Sent from my Galaxy Nexus

In hot? I do not believe in Proxmox

http://pve.proxmox.com/wiki/Manual:_vm.conf

Section hotplug.

Thanks for your response.

 

[pirateghost]

Hot plug. As in I go into the VM settings and change the nic to a different vmbr whenever I like. I do it all the time and I have never edited any config files. I test a lot of router and web filter distros on a couple of different vlans. Trust me, I do this all the time without special configs. Unless you are referring to something else entirely.

Sent from my Galaxy Nexus

 

[maykel535]

Simply:

1- No edited vm.conf, default. hotplug:0 --> default
2- Create VM kvm with ubuntu, for example.
3- Installed with vmbr0
4- Now, I like change vmbr0 to vmbr4, for example.
5- No error reported, but I changed the ip to lan vmbr4, obviously
6- Try ping to ip the other host but not ping...
7- if I turn off the machine and turn it on if I vmbr4 network. Ping OK.
8. But, I like no halt VM, I like the change apply hot.

Then, I searching information in kvm page, I found this:

hotplug: 1

Hot swapping I do not work, and if I add hotplug: 1 I get the error that I post.

Which version proxmox do you have?

Thanks for all.

 

[pirateghost]

Not sure why you would have trouble doing so, because I do this all the time.

I am on 3.1 but this worked on 2.3 for me.

Sent from my Galaxy Nexus

 

[spirit]

Hi,
in proxmox 2.3, when you change bridge, nic is hot-unplug, hot-hotplug.
in proxmox 3.1, it's improved, you bridge is changed without hot-unplug/hotplug. (vlan too)


If you need hot-unplug/hotplug,

for windows it's works out of the box
for linux, you need to have 2 modules loaded : acpiphp,pci_hotplug.

 

[maykel535]

After anything, pirateghost: what SO are used with change vmbr in hotplug?


spirit:


Te refieres a nivel de SO linux o de proxmox??


With modprobe??


modprobe acpiphp
modprobe pci_hotplug


Can I help me please??


A mi en ubuntu y pfsense no me funciona.


Thanks in advanced.

 

[spirit]

yes, you need to load modules with modprobe.

note: some recent distrib have this modules built in kernel

 

[maykel535]

Ummm but esxi server, change vmbr0 to vmbr4 in hotplug and not necessary load modules acpiphp and pci_hotplug...

such as that?

Thanks in advanced.

 

[spirit]

Ummm but esxi server, change vmbr0 to vmbr4 in hotplug and not necessary load modules acpiphp and pci_hotplug...

such as that?

Thanks in advanced.

in proxmox 3.1, you don't need hotplug to change vmbr

 

[maykel535]

in proxmox 3.1, you don't need hotplug to change vmbr

Thanks for your response and help.

I do not need to load modules?

 

[spirit]

Thanks for your response and help.

I do not need to load modules?

for proxmox 3.X no
for proxmox 2.X yes

 

[maykel535]

ok thanks for all.

I will probe when I have the time...And comment results.

Thanks again.