[fedora-arm] [master/rhel7-branch][PATCH] Don't allow bootloader and /boot on iSCSI on s390 (#1034222)

Dennis Gilmore dennis at ausil.us
Thu Nov 28 04:52:29 UTC 2013


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El Tue, 26 Nov 2013 22:10:51 +0000
Peter Robinson <pbrobinson at gmail.com> escribió:
> On Tue, Nov 26, 2013 at 9:39 PM, Dennis Gilmore <dennis at ausil.us>
> wrote:
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> > El Tue, 26 Nov 2013 14:17:22 +0000
> > Peter Robinson <pbrobinson at gmail.com> escribió:
> >> On Tue, Nov 26, 2013 at 2:01 PM, Dan Horák <dan at danny.cz> wrote:
> >> > On Tue, 26 Nov 2013 14:50:29 +0100
> >> > Vratislav Podzimek <vpodzime at redhat.com> wrote:
> >> >
> >> >> On Tue, 2013-11-26 at 14:47 +0100, Dan Horák wrote:
> >> >> > On Tue, 26 Nov 2013 14:41:15 +0100
> >> >> > Vratislav Podzimek <vpodzime at redhat.com> wrote:
> >> >> >
> >> >> > > s390(x) cannot boot from an iSCSI disk.
> >> >> >
> >> >> > what about other arches eg. ARM?
> >> >> Is there any bug on that? And any HW/person for testing?
> >> >
> >> > I think boot from iSCSI should be enabled only for positive list
> >> > of arches (like x86, ppc), I guess it requires special support in
> >> > device firmware
> >> >
> >> > the Fedora/ARM list is in on CC
> >>
> >> It depends, you can boot using an initrd with SW iSCSI support
> >> (either off a local card or via netboot) and have the rootfs on an
> >> iSCSI LUN and there's a few people have done that with the
> >> Trimslice as a PCIe attached gig interface tends to be faster than
> >> usb2 attached SSD.
> >>
> >> If you mean via an iSCSI HW device with appropriate firmware and
> >> firmware provided iSCSI LUN where the OS just sees the
> >> usual /dev/sdX style devices we don't currently see that
> >> functionality but I wouldn't be surprised if it was available of
> >> some Server SoCs soon.
> >
> > I don't know of any u-boot supoort for iscsi, but its always
> > possible. I expect that aarch64 from day 1 will support iSCSI. I
> > think that the 32 bit devices that have UEFI should have support
> > also.
> 
> I wasn't referring to iSCSI via uboot, there's other means of
> achieving it.

Right and that was clear in your email, I was filling in some missing
details from your email.  as there is multiple ways for an iscsi target
to be enumerated and your answer only partially answered the question.

Dennis
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