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Re: [Qemu-block] [Qemu-devel] QEMU not honouring bootorder
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From: |
Michal Privoznik |
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Subject: |
Re: [Qemu-block] [Qemu-devel] QEMU not honouring bootorder |
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Date: |
Mon, 11 Dec 2017 13:14:53 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 |
On 12/11/2017 12:41 PM, Fam Zheng wrote:
> On Thu, 12/07 13:10, Michal Privoznik wrote:
>> Dear list,
>>
>> I've encountered the following problem. I have two disks:
>>
>> /var/lib/libvirt/images/fedora.qcow2 (which contains OS)
>> /dev/sde (iSCSI dummy disk just for testing)
>>
>> Now, when I configure QEMU to start with both of them, QEMU/Seabios
>> tries to boot from /dev/sde which fails obviously. Even setting
>> bootorder does not help. Here's my command line:
>>
>> qemu-system-x86_64 \
>> -boot menu=on,strict=on \
>> -device lsi,id=scsi0,bus=pci.0 \
>> -drive
>> file=/var/lib/libvirt/images/fedora.qcow2,format=qcow2,if=none,id=drive-scsi0
>> \
>> -device scsi-hd,bus=scsi0.0,drive=drive-scsi0,bootindex=1 \
>> -drive file=/dev/sde,format=raw,if=none,id=drive-scsi1 \
>> -device scsi-block,bus=scsi0.0,drive=drive-scsi1,bootindex=2
>>
>> It was found that if 'drive-scsi1' is scsi-hd instead of scsi-block
>> everything works as expected and I can boot my guest successfully.
>
> Does it help if you add SCSI level ordering with
> "lun={0,1},channel=0,scsi-id=0"
> for both devices?
Setting lun helps. On the other hand, I had to change from LSI
controller to virtio-scsi as LSI doesn't support more than 1 LUNs.
Michal