the fastest/best mode is still pvh... use the kernel from elrepo it
supports the mode
---
------
Greetz
Am 19.09.2020 19:08, schrieb Radosław Piliszek:
Hi,
In general, PV tends not to be supported in newer distribution
releases.
This is mostly due to HVM performance and flexibility nowadays, which
just was not the case back in the days when PV ruled.
I am curious why you are trying PV.
-yoctozepto
On Sat, Sep 19, 2020 at 6:41 PM 9f9dcad3f78905b03201--- via
CentOS-virt <[email protected]> wrote:
All,
Just wanted to check one last time before letting this thread die.
I am curious if anyone has gotten CentOS 8 to work in a PV Xen
environment.
Thanks.
<[email protected]> wrote:
>All,
>
>I have successfully installed CentOS 7 on a PV environment, and have been
trying to see if I can can get a CentOS 8 install running.
>
>Hardware does not support virtualization extensions, hence the PV environment
and I cant do HVM for the install then migrate.
>
>My understanding is that PV support is in the kernel, and that the distro of Linux
shouldn't technically matter. But currently when trying to "PXEBoot"
using a CentOS 8 kernel and ram image I get a near instant crash for an invalid kernel.
>
>I tried to get around the issue by using DOM0 kernel and Ram Disk for the
install (DOM0 is Debian 10), having the boot progress until it reaches the
following, looping ISCSI error:
>
>>[ OK ] Reached target Slices.
>> Starting Create Static Device Nodes in /dev...
>>[ OK ] Started iSCSI UserSpace I/O driver.
>>[ OK ] Started Setup Virtual Console.
>> Starting dracut cmdline hook...
>>[ OK ] Started Apply Kernel Variables.
>>[ OK ] Stopped iSCSI UserSpace I/O driver.
>> Starting iSCSI UserSpace I/O driver...
>
>I have also tried the CentOS 7 kernel Ram Disk with the same results.
>
>I even tried installing CentOS 7 clean, then upgrading in place (by unofficial
and unsupported means) and was left with an error that pygrub couldnt find the
partition with the kernel.
>
>Is this is a bug, or is PV just not supported? Or am I doing something wrong?
>
>Config for the install is below:
>
>># Kernel paths for install
>>#kernel = "/var/opt/xen/ISO_Store/Centos8PXEBoot/vmlinuz"
>>kernel = "/vmlinuz"
>>#ramdisk = "/var/opt/xen/ISO_Store/Centos8PXEBoot/initrd.img"
>>ramdisk = "/initrd.img"
>>extra="modules=loop,squashfs console=hvc0"
>>
>># Path to HDD and iso file
>>disk = [
>> #'file:/vmdisk0,xvda,w'
>> 'format=raw, vdev=xvda, access=w,
target=/dev/mapper/vg_1-virtualmachine',
>> ]
>>
>>extra="ksdevice=
inst.repo=https://mirror.jaleco.com/centos/8.2.2004/isos/x86_64/ nameserver=1.1.1.1"
>>
>># Network configuration
>>vif = ['bridge=xenbr0']
>>
>>#DomU Settings
>>memory = 3072
>>name = "centos-8.2"
>
>Thank you to all.
>_______________________________________________
>CentOS-virt mailing list
>[email protected]
>https://lists.centos.org/mailman/listinfo/centos-virt
_______________________________________________
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