2:34 p.m.
I am running into a problem attaching an iscsi disk to a VM in libvirt using "virsh
attach-device" on Rocky 9 with the following error: "unable to execute QEMU
command 'blockdev-add': Unknown driver 'iscsi'". I've found
some indications that libiscsi is being removed from RHEL 9, like
https://bugzilla.redhat.com/show_bug.cgi?id=1967133 but it's not clear to me what
alternatives might be available for libvirt users that depend on the libiscsi-based block
device driver.
Are there alternate packages that can be installed to re-enable the iscsi block device
driver for qemu on RHEL 9 based systems? Or would it be necessary to rebuild libvirt/qemu
to get this block device driver to work again?
Thanks,
Will Gorman
1:43 a.m.
On Tue, Nov 21, 2023 at 4:34 AM <will.gorman(a)joyent.com> wrote:
I am running into a problem attaching an iscsi disk to a VM in
libvirt
using "virsh attach-device" on Rocky 9 with the following error: "unable
to execute QEMU command 'blockdev-add': Unknown driver 'iscsi'".
I've
found some indications that libiscsi is being removed from RHEL 9, like
https://bugzilla.redhat.com/show_bug.cgi?id=1967133 but it's not clear to
me what alternatives might be available for libvirt users that depend on
the libiscsi-based block device driver.
For this issue, it can be resolved by enabling libiscsi for QEMU, and then
rebuilding and reinstalling it.
If issue with an unsupported iscsi-direct pool, you need to do the steps
above for libvirt.
Are there alternate packages that can be installed to re-enable the
iscsi
block device driver for qemu on RHEL 9 based systems? Or would it be
necessary to rebuild libvirt/qemu to get this block device driver to work
again?
Thanks,
Will Gorman
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9:51 a.m.
On 11/20/23 21:34, will.gorman(a)joyent.com wrote:
I am running into a problem attaching an iscsi disk to a VM in
libvirt using "virsh attach-device" on Rocky 9 with the following error:
"unable to execute QEMU command 'blockdev-add': Unknown driver
'iscsi'". I've found some indications that libiscsi is being removed
from RHEL 9, like https://bugzilla.redhat.com/show_bug.cgi?id=1967133 but it's not
clear to me what alternatives might be available for libvirt users that depend on the
libiscsi-based block device driver.
Are there alternate packages that can be installed to re-enable the iscsi block device
driver for qemu on RHEL 9 based systems? Or would it be necessary to rebuild libvirt/qemu
to get this block device driver to work again?
Libvirt upstream can't really help here. I suggest you ask your distro
maintainers. They are the ones making decisions which features to enable
and disable.
Otherwise, rebuilding package on your own is your only option.
Sorry,
Michal
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2 comments
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participants (3)
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Han Han -
Michal Prívozník -
will.gorman＠joyent.com