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Re: [Fedora-xen] Formatting pauses during install




On Jun 12, 2007, at 4:56 PM, Tom Horsley wrote:

On Tue, 12 Jun 2007 12:16:44 -0600
Tarun Reddy <treddy rallydev com> wrote:

I'm using Centos 5 dom0 on an x86_64 machine with 12GB of RAM.

Tried to use virt-manager to install a Centos 4 domU (also tried with
Centos 5 domU) but the tool limits the disk to 16000 MB. So switch to
using virt-install and specified an 80GB disk. Everything proceed
well until "Formatting / file system" which stops at 11% (~8GB of the
74GB / partition).

Seems likely it might be the same bug as:

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=234160

If you look at the VM you are trying to install in the virt-manager
app, is it using as much CPU as it can get?

Thank you for the pointer! The load on the host shows 1 x number of guest hosts during those pauses. It did eventually finish the install but it took almost 2 hours with a local Centos mirror!

So looking at the bugzilla report, I noticed I didn't mention that I was using paravirtualized guest domains. Of course, the bug in bugzilla originally references fully virtualized guests. So, on a whim, I try a Centos 4.5 guest os fully virtualized. Apart from having to add noapic to my kernel boot line, it seems much more stable with no pauses at all. Go figure.

I was hoping to use a paravirtualized since I thought it might be faster.

Of course on a 32 bit Intel box (older Xeons), I have no issues with paravirtualized hosts, either Centos 5 or 4.5.

Baffled,
Tarun


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