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

Dan Horák dan at danny.cz
Tue Nov 26 14:28:58 UTC 2013


On Tue, 26 Nov 2013 14:17:22 +0000
Peter Robinson <pbrobinson at gmail.com> wrote:

> 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.

This is about having initrd (and anaconda installed bootloader) on iSCSI
LUN (that carries /boot), root on iSCSI should work even for s390 I
think :-)


		Dan


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