CentOS 7 using old version of Linux Integration Services
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I noticed that Hyper-V was having a problem creating snapshots on my new Hyper-V Server 2016 system. This is not a good thing. The snapshot functionality is how all backup systems function.
I did a little digging and it appears that while CentOS 7 includes some version of these drivers natively, they are now outdated and not updating.
[root@bnasc ~]# /sbin/modinfo hv_vmbus filename: /lib/modules/3.10.0-514.6.1.el7.x86_64/kernel/drivers/hv/hv_vmbus.ko license: GPL rhelversion: 7.3 srcversion: B18736993819DBB43C5F7B7 alias: acpi*:VMBus:* alias: acpi*:VMBUS:* depends: intree: Y vermagic: 3.10.0-514.6.1.el7.x86_64 SMP mod_unload modversions signer: CentOS Linux kernel signing key sig_key: EE:3B:C2:53:44:A6:71:F6:D7:76:4A:5C:FD:83:AB:4B:AF:DB:E7:4D sig_hashalgo: sha256 [root@bnasc ~]#Looks like version 3.10? Microsoft has released version 4.1.3 for CentOS/RHEL 7.3
https://www.microsoft.com/en-us/download/details.aspx?id=51612So before I deal with manually downloading and everything. does anyone have a script to get this?
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MS doesn't have a repo for this?
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@Dashrender said in CentOS 7 using old version of Linux Integration Services:
MS doesn't have a repo for this?
No, they want you to download an ISO and tar.gz file.
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said in CentOS 7 using old version of Linux Integration Services:
snapshot functionality is how all backup systems
I thought the newer CentOS and Ubuntu versions already came with LIS pre-installed or built into the kernel or whatever?
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@Tim_G said in CentOS 7 using old version of Linux Integration Services:
said in CentOS 7 using old version of Linux Integration Services:
snapshot functionality is how all backup systems
I thought the newer CentOS and Ubuntu versions already came with LIS pre-installed or built into the kernel or whatever?
That is the version I show above. It is outdated from the native repo, obviously.
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Here is Microsoft's official grid for LIS support.
https://technet.microsoft.com/en-us/windows-server-docs/compute/hyper-v/supported-centos-and-red-hat-enterprise-linux-virtual-machines-on-hyper-v -
So because It seems the native is supposed to support Server 2016 core, then how come I cannot make a snapshot.
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If I shut down the VM, I can make checkpoints and backups with no errors.
This is also happening on a fully updated Server 2012 R2 DataCenter + Hyper-V system.
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@JaredBusch said in CentOS 7 using old version of Linux Integration Services:
If I shut down the VM, I can make checkpoints and backups with no errors.
This is also happening on a fully updated Server 2012 R2 DataCenter + Hyper-V system.
I'm running some CentOS 7 proxy servers. One of them is running on Server 2012 R2 DataCenter + Hyper-V as well.
Backups via Windows Server Backup and checkpoints work just fine while the machine is running.Here's what mine shows... not exactly the same as yours, but may be some help? I don't mind taking a checkpoint and updating if it may help get some info if needed.
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@Tim_G said in CentOS 7 using old version of Linux Integration Services:
@JaredBusch said in CentOS 7 using old version of Linux Integration Services:
If I shut down the VM, I can make checkpoints and backups with no errors.
This is also happening on a fully updated Server 2012 R2 DataCenter + Hyper-V system.
I'm running some CentOS 7 proxy servers. One of them is running on Server 2012 R2 DataCenter + Hyper-V as well.
Backups via Windows Server Backup and checkpoints work just fine while the machine is running.Here's what mine shows... not exactly the same as yours, but may be some help? I don't mind taking a checkpoint and updating if it may help get some info if needed.
Why would it being showing different..
[root@bnasc ~]# /sbin/modinfo hv_vmbus filename: /lib/modules/3.10.0-514.6.1.el7.x86_64/kernel/drivers/hv/hv_vmbus.ko license: GPL rhelversion: 7.3 srcversion: B18736993819DBB43C5F7B7 alias: acpi*:VMBus:* alias: acpi*:VMBUS:* depends: intree: Y vermagic: 3.10.0-514.6.1.el7.x86_64 SMP mod_unload modversions signer: CentOS Linux kernel signing key sig_key: EE:3B:C2:53:44:A6:71:F6:D7:76:4A:5C:FD:83:AB:4B:AF:DB:E7:4D sig_hashalgo: sha256 -
@Tim_G oh, yours is 7.2. I never had a problem until recently. maybe it is 7.3 that is the problem.
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@JaredBusch I'll restore a backup of that VM and turn it on, on my test network... update it and update LIS if needed. I'll let you know if I run in to the same issue as you.
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Nope, I just logged onto a machine at another client. They are Hyper-V Server 2012 R2.
This client everything works normally
This box is an email relay.
Last login: Wed Jan 25 10:42:05 2017 [root@relay01 ~]# /sbin/modinfo hv_vmbus filename: /lib/modules/3.10.0-514.6.1.el7.x86_64/kernel/drivers/hv/hv_vmbus.ko license: GPL rhelversion: 7.3 srcversion: B18736993819DBB43C5F7B7 alias: acpi*:VMBus:* alias: acpi*:VMBUS:* depends: intree: Y vermagic: 3.10.0-514.6.1.el7.x86_64 SMP mod_unload modversions signer: CentOS Linux kernel signing key sig_key: EE:3B:C2:53:44:A6:71:F6:D7:76:4A:5C:FD:83:AB:4B:AF:DB:E7:4D sig_hashalgo: sha256 [root@relay01 ~]# -
@JaredBusch Yeah that says v 7.3 too. I'll try that update plan I mentioned and let you know.
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@Tim_G said in CentOS 7 using old version of Linux Integration Services:
@JaredBusch Yeah that says v 7.3 too. I'll try that update plan I mentioned and let you know.
So WTF, I have one that works fine using 7.3 native LIS on Hyper-V Server 2012 R2, and one that fails on Hyper-V Server 2016 or Server 2012 R2 DataCenter.
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Just looked at another system at another client.
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