Boot Loop after Update

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dcabr...@gmail.com

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Mar 12, 2019, 2:57:15 AM3/12/19
to qubes-users
After updating Fedora and dom0 yesterday, today my laptop entered into a boot loop, stopping some seconds right after the initramfs line and re-booting

Hardware: Lenovo X1 Carbon 6th Gen
Booting with UEFI, dual boot with Windows

After a lot of unsuccessful googling I booted the laptop with a Qubes-OS USB drive and checked the content of xen.cfg located on the EFI partition:

--------
[global]
default=4.14.103-1.pvops.qubes.x86_64

[4.14.74-1.pvops.qubes.x86_64]
options=loglvl=all dom0_mem=min:1024M dom0_mem=max:4096M iommu=no-igfx ucode=scan smt=off
kernel=vmlinuz-4.14.74-1.pvops.qubes.x86_64 root=/dev/mapper/qubes_dom0-root rd.luks.uuid=luks-9b85a28f-01a5-4914-be0b-0605d066b610 rd.lvm.lv=qubes_dom0/root rd.lvm.lv=qubes_dom0/swap i915.alpha_support=1 rhgb quiet rd.qubes.hide_all_usb
ramdisk=initramfs-4.14.74-1.pvops.qubes.x86_64.img
[4.14.103-1.pvops.qubes.x86_64]
options=loglvl=all dom0_mem=min:1024M dom0_mem=max:4096M iommu=no-igfx ucode=scan smt=off
kernel=vmlinuz-4.14.103-1.pvops.qubes.x86_64 root=/dev/mapper/qubes_dom0-root rd.luks.uuid=luks-9b85a28f-01a5-4914-be0b-0605d066b610 rd.lvm.lv=qubes_dom0/root rd.lvm.lv=qubes_dom0/swap i915.alpha_support=1 rhgb quiet rd.qubes.hide_all_usb
ramdisk=initramfs-4.14.103-1.pvops.qubes.x86_64.img
----------

Only after changing to default=4.14.74-1.pvops.qubes.x86_64 can boot my system again.
NOTE: deleting 'iommu=no-igfx' did not solve the problem

Does anybody know what is the problem?
Is this a problem with the upated kernel version?
What is happening with future updates? Shall I apply them?

Thank you in advance for your time!

dcabr...@gmail.com

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Jun 17, 2019, 5:44:34 PM6/17/19
to qubes-users

I answer myself. The problem was installing Qubes OS in parallel to Windows. The UEFI partition created for Windows is 100MB size, which is too small for updating the boot kernel. The kernel update failed and therefore the system went into a boot loop.
The solution was re-installing Qubes OS but deleting and re-creating a bigger UEFI partition. With the bigger partition the updated are running and the system is booting normally.

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