<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=Windows-1252"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr"> <p>Hi Daniel,</p> <p><br> </p> <p>I have noticed that it will fail exactly as you said if <cdrom> is first in the boot order, if <hd> is first in the boot order the XML validates and it starts as usual.</p> <div><br> </div> first in log except below is with cdrom set to first in boot order, second is with hd set first. <div><br> </div> <div> <div>2018-08-09 11:39:28.625+0000: starting up libvirt version: 3.9.0, package: 14.el7_5.6 (CentOS BuildSystem <http://bugs.centos.org>, 2018-06-27-14:13:57, x86-01.bsys.centos.org), qemu version: 2.10.0(qemu-kvm-ev-2.10.0-21.el7_5.4.1), hostname: devnode9.com</div> <div>LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin QEMU_AUDIO_DRV=none /usr/libexec/qemu-kvm -name guest=kvm104,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-82-kvm104/master-key.aes -machine pc-i440fx-rhel7.5.0,accel=kvm,usb=off,dump-guest-core=off -m 1024 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 5827d6a9-ef0e-4331-9d0e-fa742c70d596 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-82-kvm104/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=http://distro.ibiblio.org:80/puppylinux/puppy-xenial/32/xenialpup-7.5-uefi.iso,format=raw,if=none,id=drive-ide0-0-1,readonly=on -device ide-cd,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1,bootindex=2 -drive file=/dev/Kvmvol/kvm104_img,format=raw,if=none,id=drive-virtio-disk0,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=32 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:16:3c:07:e0:c9,bus=pci.0,addr=0x3 -device usb-tablet,id=input0,bus=usb.0,port=1 -vnc 0.0.0.0:4,password -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -msg timestamp=on</div> <div>2018-08-09T11:39:28.690350Z qemu-kvm: -drive file=http://distro.ibiblio.org:80/puppylinux/puppy-xenial/32/xenialpup-7.5-uefi.iso,format=raw,if=none,id=drive-ide0-0-1,readonly=on: Driver 'http' is not whitelisted</div> <div>2018-08-09 11:39:28.699+0000: shutting down, reason=failed</div> <div><br> </div> <div><br> </div> <div>2018-08-09 11:40:04.963+0000: starting up libvirt version: 3.9.0, package: 14.el7_5.6 (CentOS BuildSystem <http://bugs.centos.org>, 2018-06-27-14:13:57, x86-01.bsys.centos.org), qemu version: 2.10.0(qemu-kvm-ev-2.10.0-21.el7_5.4.1), hostname: devnode9.com</div> <div>LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin QEMU_AUDIO_DRV=none /usr/libexec/qemu-kvm -name guest=kvm104,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-83-kvm104/master-key.aes -machine pc-i440fx-rhel7.5.0,accel=kvm,usb=off,dump-guest-core=off -m 1024 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 5827d6a9-ef0e-4331-9d0e-fa742c70d596 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-83-kvm104/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive if=none,id=drive-ide0-0-1,readonly=on -device ide-cd,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1,bootindex=2 -drive file=/dev/Kvmvol/kvm104_img,format=raw,if=none,id=drive-virtio-disk0,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=32 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:16:3c:07:e0:c9,bus=pci.0,addr=0x3 -device usb-tablet,id=input0,bus=usb.0,port=1 -vnc 0.0.0.0:4,password -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -msg timestamp=on</div> <br> So my best guess based on the logs is that http is simply being ignored when it is not set to primary, not sure if that is the desired behavior.</div> <div><br> </div> <div>Cheers.<br> <br> <div style="color: rgb(0, 0, 0);"> <div> <hr tabindex="-1" style="display:inline-block; width:98%"> <div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Daniel P. Berrangé <berrange@redhat.com><br> <b>Sent:</b> 09 August 2018 12:27<br> <b>To:</b> Inception Hosting<br> <b>Cc:</b> Vasiliy Tolstov; libvirt-users@redhat.com<br> <b>Subject:</b> Re: [libvirt-users] Mount URL as cdrom/iso KVM/QEMU</font> <div> </div> </div> </div> <font size="2"><span style="font-size:10pt;"> <div class="PlainText">On Thu, Aug 09, 2018 at 10:50:46AM +0000, Inception Hosting wrote:<br> > Just a quick correction and apologies, the actual issue is that http<br> > will not work, https will so I dont think this is a bug as such I<br> > think this is by design likely for security.<br> > <br> > <br> > Looking at the man page for qemu-kvm it states http will work with<br> > examples given however only https works, my best guess from looking<br> > at the spec file from the srpm is that it has only been enabled in<br> > the centos qemu-kvm-ev with https:<br> <br> Yes, the qemu RPMs in centos & RHEL have disabled support for http://<br> protocol, however, I expect that to immediately fail when trying to<br> start the guest. eg<br> <br> # /usr/libexec/qemu-kvm -drive file=http://example.com/foo/bar -accel tcg<br> qemu-kvm: -drive file=http://example.com/foo/bar: Driver 'http' is not whitelisted<br> <br> so I'm puzzelled why your guest successfully started at all with a<br> http protocol in use.<br> <br> Are you able to share your QEMU log from /var/log/libvirt/qemu/$GUESTNAME.log<br> from a VM that fails to launch with http ?<br> <br> Regards,<br> Daniel<br> -- <br> |: <a href="https://berrange.com" id="LPlnk387394" previewremoved="true">https://berrange.com</a> -o- <a href="https://www.flickr.com/photos/dberrange" id="LPlnk620376" previewremoved="true"> https://www.flickr.com/photos/dberrange</a> :| <div id="LPBorder_GT_15338148992930.6558926289622655" style="margin-bottom: 20px; overflow: auto; width: 100%; text-indent: 0px;"> <table id="LPContainer_15338148992900.4522176108418592" role="presentation" cellspacing="0" style="width: 90%; background-color: rgb(255, 255, 255); position: relative; overflow: auto; padding-top: 20px; padding-bottom: 20px; margin-top: 20px; border-top: 1px dotted rgb(200, 200, 200); border-bottom: 1px dotted rgb(200, 200, 200);"> <tbody> <tr valign="top" style="border-spacing: 0px;"> <td id="ImageCell_15338148992910.0703164042614044" colspan="1" style="width: 250px; position: relative; display: table-cell; padding-right: 20px;"> <div id="LPImageContainer_15338148992910.3884357051014058" style="background-color: rgb(255, 255, 255); height: 166px; position: relative; margin: auto; display: table; width: 250px;"> <a id="LPImageAnchor_15338148992910.19828023157147112" href="https://www.flickr.com/photos/dberrange" target="_blank" style="display: table-cell; text-align: center;"><img aria-label="Preview image with link selected. 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color: rgb(102, 102, 102); font-weight: 400; font-family: wf_segoe-ui_normal, "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; font-size: 14px; line-height: 14px;"> www.flickr.com</div> <div id="LPDescription_15338148992920.6535196099099363" style="display: block; color: rgb(102, 102, 102); font-weight: 400; font-family: wf_segoe-ui_normal, "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; font-size: 14px; line-height: 20px; max-height: 100px; overflow: hidden;"> Explore Daniel's 1,578 photos on Flickr!</div> </td> </tr> </tbody> </table> </div> <br> <br> |: <a href="https://libvirt.org" id="LPlnk613422" previewremoved="true">https://libvirt.org</a> -o- <a href="https://fstop138.berrange.com" id="LPlnk69999" previewremoved="true">https://fstop138.berrange.com</a> :| <div id="LPBorder_GT_15338149272470.4949025608201594" style="margin-bottom: 20px; overflow: auto; width: 100%; text-indent: 0px;"> <table id="LPContainer_15338149272460.7962311099867831" role="presentation" cellspacing="0" style="width: 90%; 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background-color: rgb(255, 255, 255); position: relative; overflow: auto; padding-top: 20px; padding-bottom: 20px; margin-top: 20px; border-top: 1px dotted rgb(200, 200, 200); border-bottom: 1px dotted rgb(200, 200, 200);"> <tbody> <tr valign="top" style="border-spacing: 0px;"> <td id="ImageCell_15338149581590.4903878160207782" colspan="1" style="width: 250px; position: relative; display: table-cell; padding-right: 20px;"> <div id="LPImageContainer_15338149581590.16277653959365335" style="background-color: rgb(255, 255, 255); height: 150px; position: relative; margin: auto; display: table; width: 150px;"> <a id="LPImageAnchor_15338149581600.28016506352664505" href="https://www.instagram.com/dberrange" target="_blank" style="display: table-cell; text-align: center;"><img aria-label="Preview image with link selected. 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