Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Bug 1783542

Summary: In-place upgrade fails to convert the zipl configuration to BLS for RHEL-ALT qemu-kvm guest on s390x
Product: Red Hat Enterprise Linux 7 Reporter: smitterl
Component: leapp-repositoryAssignee: Michal Hečko <mhecko>
Status: CLOSED ERRATA QA Contact: smitterl
Severity: high Docs Contact:
Priority: unspecified    
Version: 7.6CC: amike, bugproxy, dhorak, dzheng, fkrska, fmartine, jcastran, lagordon, leapp-notifications, mbocek, mdeng, ngu, podvody, pstodulk, qzhang, smitterl, tstaudt
Target Milestone: rcKeywords: Reopened, Upgrades
Target Release: 7.9Flags: pm-rhel: mirror+
Hardware: s390x   
OS: Linux   
Whiteboard:
Fixed In Version: leapp-repository-0.15.0-1.el7_9 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-11-10 09:13:09 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1663362, 1729246, 1818088, 1857216    
Attachments:
Description Flags
leapp-preupgrade.log after rebooting back into 7 after error during leapp upgrade
none
console_output_after_reboot
none
console_output_in_emergency_shell
none
console_output_after_2nd_reboot
none
leapp-preupgrade output after fixing inhibitors
none
output of leapp-upgrade with errors
none
output of leapp-upgrade after fixing error none

Description smitterl 2019-12-13 21:34:20 UTC 
Description of problem:
VM fails to reboot system after leapp upgrade


Version-Release number of selected component (if applicable):
qemu-kvm-2.12.0-93.module+el8.2.0
leapp-repository-0.9.0-100.201912122202Z.0a279dd.master.el7_6.noarch


How reproducible:
100%


Steps to Reproduce:
1. Fix issues from 'leapp preupgrade'
2. Run 'leapp upgrade'
3. Reboot

Actual results:
1. Enters dracut console
2. /run/initramfs/rdsosreport contains ERROR:
...
[   52.796396] localhost zipl[870]: Boot loader written to vda (0000) - fd:00
[  158.443139] localhost upgrade[553]: 2019-12-14 04:58:10.523 ERROR    PID: 560 leapp.workflow.Preparation.zipl_convert_to_blscfg: Failed to execute zipl-switch-to-blscfg to convert the zipl configuration to BLS
[  158.443139] localhost upgrade[553]: Traceback (most recent call last):
[  158.443139] localhost upgrade[553]:   File "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/actors/ziplconverttoblscfg/actor.py", line 51, in process
[  158.443139] localhost upgrade[553]:     context.call(['/usr/sbin/zipl-switch-to-blscfg'])
[  158.443139] localhost upgrade[553]:   File "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/libraries/mounting.py", line 156, in call
[  158.443139] localhost upgrade[553]:     return run(self.type.make_command(cmd), *args, **kwargs)
[  158.443139] localhost upgrade[553]:   File "/usr/lib/python2.7/site-packages/leapp/libraries/stdlib/__init__.py", line 187, in run
[  158.443139] localhost upgrade[553]:     result=result
[  158.443139] localhost upgrade[553]: CalledProcessError: Command ['systemd-nspawn', '--register=no', '--quiet', '-D', u'/var/lib/leapp/el8userspace', '--setenv=LEAPP_COMMON_TOOLS=:/etc/leapp/repos.d/system_upgrade/el7toel8/tools', '--setenv=LEAPP_COMMON_FILES=:/etc/leapp/repos.d/system_upgrade/el7toel8/files', '--setenv=LEAPP_HOSTNAME=localhost.localdomain', '--setenv=LEAPP_EXECUTION_ID=3d04221f-2b21-4dce-959c-44422274ab30', '/usr/sbin/zipl-switch-to-blscfg'] failed with exit code 1.
[  158.530684] localhost upgrade[553]: ============================================================
[  158.530684] localhost upgrade[553]:                            ERRORS
[  158.530684] localhost upgrade[553]: ============================================================
[  158.530684] localhost upgrade[553]: 2019-12-14 04:58:10.583062 [ERROR] Actor: zipl_convert_to_blscfg Message: Failed to convert the zipl configuration to BLS.
[  158.530684] localhost upgrade[553]: ============================================================
[  158.530684] localhost upgrade[553]:                        END OF ERRORS
[  158.530684] localhost upgrade[553]: ============================================================

Expected results:
System boots


Additional info:
1. Attached files are from reproduction run where I ran 'zipl' after removing all but one kernel in case it would make a difference but same error as if following instructions step by step.
2. preupgrade showed two inhibitors that I fixed: 1. allow for ssh remote root access, 2. 2 kernels after update; then continued directly with upgrade after preupgrade returned without inhibitors/green
3. The system has lvm-thin, boot mounted /dev/vda1 on /boot type xfs
Comment 6 Javier Martinez Canillas 2020-02-21 16:51:08 UTC 
(In reply to smitterl from comment #0)

[snip]

> [   52.796396] localhost zipl[870]: Boot loader written to vda (0000) - fd:00

This output comes from zipl and it doesn't give an indication of what failed.

> [  158.443139] localhost upgrade[553]: 2019-12-14 04:58:10.523 ERROR    PID:
> 560 leapp.workflow.Preparation.zipl_convert_to_blscfg: Failed to execute
> zipl-switch-to-blscfg to convert the zipl configuration to BLS
> [  158.443139] localhost upgrade[553]: Traceback (most recent call last):
> [  158.443139] localhost upgrade[553]:   File
> "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/actors/
> ziplconverttoblscfg/actor.py", line 51, in process
> [  158.443139] localhost upgrade[553]:    
> context.call(['/usr/sbin/zipl-switch-to-blscfg'])
> [  158.443139] localhost upgrade[553]:   File
> "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/libraries/
> mounting.py", line 156, in call
> [  158.443139] localhost upgrade[553]:     return
> run(self.type.make_command(cmd), *args, **kwargs)
> [  158.443139] localhost upgrade[553]:   File
> "/usr/lib/python2.7/site-packages/leapp/libraries/stdlib/__init__.py", line
> 187, in run
> [  158.443139] localhost upgrade[553]:     result=result
> [  158.443139] localhost upgrade[553]: CalledProcessError: Command
> ['systemd-nspawn', '--register=no', '--quiet', '-D',
> u'/var/lib/leapp/el8userspace',
> '--setenv=LEAPP_COMMON_TOOLS=:/etc/leapp/repos.d/system_upgrade/el7toel8/
> tools',
> '--setenv=LEAPP_COMMON_FILES=:/etc/leapp/repos.d/system_upgrade/el7toel8/
> files', '--setenv=LEAPP_HOSTNAME=localhost.localdomain',
> '--setenv=LEAPP_EXECUTION_ID=3d04221f-2b21-4dce-959c-44422274ab30',
> '/usr/sbin/zipl-switch-to-blscfg'] failed with exit code 1.

So the zipl-switch-to-blscfg script exited with status 1. The script prints an error message stderr, can we get the output of the script to figure out what went wrong?
Comment 7 Gu Nini 2020-02-25 09:05:28 UTC 
Sebas, please help to check comment 5 and comment 6. Thanks.
Comment 15 Petr Stodulka 2020-03-02 12:17:50 UTC 
So regarding the latest info, the issue is not possible to reproduce anymore. As we are not aware what happens before, I am closing the bug rather with insufficient_data status as it could happen the issue could appear again in future. In case the issue appears again, please reopen the bug with all required info. Thank you guys for cooperation.
Comment 16 smitterl 2020-03-03 12:59:32 UTC 
(In reply to Petr Stodulka from comment #15)
> So regarding the latest info, the issue is not possible to reproduce
> anymore. As we are not aware what happens before, I am closing the bug
> rather with insufficient_data status as it could happen the issue could
> appear again in future. In case the issue appears again, please reopen the
> bug with all required info. Thank you guys for cooperation.

Petr, 

unfortunately, this is still reproducible on the RHEL ALT 7.6 guest. My last info was about RHEL 7.6. However, this doesn't seem RHEL ALT 7.6 specific but might be due to an unexpected zipl.conf.

There might be a workaround, removing entry from /etc/zipl.conf and running zipl before rebooting.
I added more info to the actor log: https://github.com/oamg/leapp-repository/pull/463

1. The error output from zipl-swtich-to-blscfg:

...
[   53.502244] upgrade[554]: BLS file /boot/loader/entries/b9085c88059317bdf6f241658a1ec532-0-rescue.conf already exists
...

2. The zipl.conf before reboot:
[root@localhost libraries]# cat /etc/zipl.conf 
[defaultboot]
defaultauto
prompt=1
timeout=5
default=RHEL-Upgrade-Initramfs
target=/boot
[RHEL-Upgrade-Initramfs]
	image=/boot/vmlinuz-upgrade.s390x
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap LANG=en_US.UTF-8 enforcing=0 rd.plymouth=0 plymouth.enable=0"
	ramdisk=/boot/initramfs-upgrade.s390x.img
[Red_Hat_Enterprise_Linux_Server_7.6_Rescue_b9085c88059317bdf6f241658a1ec532]
	image=/boot/vmlinuz-0-rescue-b9085c88059317bdf6f241658a1ec532
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap LANG=en_US.UTF-8"
	ramdisk=/boot/initramfs-0-rescue-b9085c88059317bdf6f241658a1ec532.img
[4.14.0-115.17.1.el7a.s390x]
	image=/boot/vmlinuz-4.14.0-115.17.1.el7a.s390x
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap LANG=en_US.UTF-8"
	ramdisk=/boot/initramfs-4.14.0-115.17.1.el7a.s390x.img
[linux-0-rescue-55d8db5ca0b34b9e8c38668de7307410]
	image=/boot/vmlinuz-0-rescue-55d8db5ca0b34b9e8c38668de7307410
	ramdisk=/boot/initramfs-0-rescue-55d8db5ca0b34b9e8c38668de7307410.img
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap"

3. Remove last entry ([linux-0-rescue-55d8db5ca0b34b9e8c38668de7307410]) and run zipl before reboot.

Result:
1. The upgrade process finishes with "Complete" and boots into RHEL 8.1.
2. I can log in and have network.
Comment 17 Javier Martinez Canillas 2020-03-24 11:40:37 UTC 
(In reply to smitterl from comment #16)
> (In reply to Petr Stodulka from comment #15)
> > So regarding the latest info, the issue is not possible to reproduce
> > anymore. As we are not aware what happens before, I am closing the bug
> > rather with insufficient_data status as it could happen the issue could
> > appear again in future. In case the issue appears again, please reopen the
> > bug with all required info. Thank you guys for cooperation.
> 
> Petr, 
> 
> unfortunately, this is still reproducible on the RHEL ALT 7.6 guest. My last
> info was about RHEL 7.6. However, this doesn't seem RHEL ALT 7.6 specific
> but might be due to an unexpected zipl.conf.
> 
> There might be a workaround, removing entry from /etc/zipl.conf and running
> zipl before rebooting.
> I added more info to the actor log:
> https://github.com/oamg/leapp-repository/pull/463
> 
> 1. The error output from zipl-swtich-to-blscfg:
> 
> ...
> [   53.502244] upgrade[554]: BLS file
> /boot/loader/entries/b9085c88059317bdf6f241658a1ec532-0-rescue.conf already

I think this is expected if there are BLS snippets already created. Did you install the rhel8 kernels before calling the zipl-swtich-to-blscfg script?

> exists
> ...
> 
> 2. The zipl.conf before reboot:
> [root@localhost libraries]# cat /etc/zipl.conf 
> [defaultboot]
> defaultauto
> prompt=1
> timeout=5
> default=RHEL-Upgrade-Initramfs
> target=/boot
> [RHEL-Upgrade-Initramfs]
> 	image=/boot/vmlinuz-upgrade.s390x
> 	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200
> reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root
> rd.lvm.lv=rhel/swap LANG=en_US.UTF-8 enforcing=0 rd.plymouth=0
> plymouth.enable=0"
> 	ramdisk=/boot/initramfs-upgrade.s390x.img
> [Red_Hat_Enterprise_Linux_Server_7.6_Rescue_b9085c88059317bdf6f241658a1ec532]
> 	image=/boot/vmlinuz-0-rescue-b9085c88059317bdf6f241658a1ec532
> 	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200
> reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root
> rd.lvm.lv=rhel/swap LANG=en_US.UTF-8"
> 	ramdisk=/boot/initramfs-0-rescue-b9085c88059317bdf6f241658a1ec532.img
> [4.14.0-115.17.1.el7a.s390x]
> 	image=/boot/vmlinuz-4.14.0-115.17.1.el7a.s390x
> 	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200
> reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root
> rd.lvm.lv=rhel/swap LANG=en_US.UTF-8"
> 	ramdisk=/boot/initramfs-4.14.0-115.17.1.el7a.s390x.img
> [linux-0-rescue-55d8db5ca0b34b9e8c38668de7307410]
> 	image=/boot/vmlinuz-0-rescue-55d8db5ca0b34b9e8c38668de7307410
> 	ramdisk=/boot/initramfs-0-rescue-55d8db5ca0b34b9e8c38668de7307410.img
> 	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200
> reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root
> rd.lvm.lv=rhel/swap"
> 
> 3. Remove last entry ([linux-0-rescue-55d8db5ca0b34b9e8c38668de7307410]) and

> run zipl before reboot.
> 
> Result:
> 1. The upgrade process finishes with "Complete" and boots into RHEL 8.1.
> 2. I can log in and have network.

What's the content of the zipl.conf file after the upgrade is complete?
Comment 18 Petr Stodulka 2020-03-24 14:04:59 UTC 
> > [   53.502244] upgrade[554]: BLS file
> > /boot/loader/entries/b9085c88059317bdf6f241658a1ec532-0-rescue.conf already
> 
> I think this is expected if there are BLS snippets already created. Did you install the rhel8 kernels before calling the zipl-swtich-to-blscfg script?

If I remember right, first is called the script before the installation of the rhel-8 kernel, based on your instructions before. That's why it is (or was?) working on machines we tried. Including some RHEL-ALT s390x machines as well. Not sure what exact difference is here in this case or whether something has been changed.
Comment 20 Javier Martinez Canillas 2020-03-24 15:04:33 UTC 
Hello Petr,

(In reply to Petr Stodulka from comment #18)
> > > [   53.502244] upgrade[554]: BLS file
> > > /boot/loader/entries/b9085c88059317bdf6f241658a1ec532-0-rescue.conf already
> > 
> > I think this is expected if there are BLS snippets already created. Did you install the rhel8 kernels before calling the zipl-swtich-to-blscfg script?
> 
> If I remember right, first is called the script before the installation of
> the rhel-8 kernel, based on your instructions before. That's why it is (or
> was?) working on machines we tried. Including some RHEL-ALT s390x machines
> as well. Not sure what exact difference is here in this case or whether
> something has been changed.

Yes, I remember having some conversations about this with you. Although in this case it seems to be the opposite, that the script is being called after the kernel has been installed?

Because after executing zipl-swtich-to-blscfg the zipl.conf file should not have any boot entry sections, and in this case it does according to Comment 16.
Comment 26 smitterl 2021-06-11 11:15:20 UTC 
I can reliably reproduce this issue with a kvm guest.

I'm listing here the zipl.conf of the ALT 7.6 system at several stages of the upgrade process.

=======================
zipl.conf - base system
=======================
[defaultboot]
defaultauto
prompt=1
timeout=5
default=linux
target=/boot
[linux]
	image=/boot/vmlinuz-4.14.0-115.el7a.s390x
	ramdisk=/boot/initramfs-4.14.0-115.el7a.s390x.img
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap LANG=en_US.UTF-8"
[linux-0-rescue-55d8db5ca0b34b9e8c38668de7307410]
	image=/boot/vmlinuz-0-rescue-55d8db5ca0b34b9e8c38668de7307410
	ramdisk=/boot/initramfs-0-rescue-55d8db5ca0b34b9e8c38668de7307410.img
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap"

===============================
zipl.conf - after yum update -y
===============================
[defaultboot]
defaultauto
prompt=1
timeout=5
default=4.14.0-115.36.1.el7a.s390x
target=/boot
[Red_Hat_Enterprise_Linux_Server_7.6_Rescue_b9085c88059317bdf6f241658a1ec532]
	image=/boot/vmlinuz-0-rescue-b9085c88059317bdf6f241658a1ec532
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap LANG=en_US.UTF-8"
	ramdisk=/boot/initramfs-0-rescue-b9085c88059317bdf6f241658a1ec532.img
[4.14.0-115.36.1.el7a.s390x]
	image=/boot/vmlinuz-4.14.0-115.36.1.el7a.s390x
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap LANG=en_US.UTF-8"
	ramdisk=/boot/initramfs-4.14.0-115.36.1.el7a.s390x.img
[linux]
	image=/boot/vmlinuz-4.14.0-115.el7a.s390x
	ramdisk=/boot/initramfs-4.14.0-115.el7a.s390x.img
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap LANG=en_US.UTF-8"
[linux-0-rescue-55d8db5ca0b34b9e8c38668de7307410]
	image=/boot/vmlinuz-0-rescue-55d8db5ca0b34b9e8c38668de7307410
	ramdisk=/boot/initramfs-0-rescue-55d8db5ca0b34b9e8c38668de7307410.img
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap"

=========================================================================
zipl.conf - after rebooting into latest kernel and yum remove old kernels
=========================================================================
[defaultboot]
defaultauto
prompt=1
timeout=5
default=4.14.0-115.36.1.el7a.s390x
target=/boot
[Red_Hat_Enterprise_Linux_Server_7.6_Rescue_b9085c88059317bdf6f241658a1ec532]
	image=/boot/vmlinuz-0-rescue-b9085c88059317bdf6f241658a1ec532
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap LANG=en_US.UTF-8"
	ramdisk=/boot/initramfs-0-rescue-b9085c88059317bdf6f241658a1ec532.img
[4.14.0-115.36.1.el7a.s390x]
	image=/boot/vmlinuz-4.14.0-115.36.1.el7a.s390x
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap LANG=en_US.UTF-8"
	ramdisk=/boot/initramfs-4.14.0-115.36.1.el7a.s390x.img
[linux-0-rescue-55d8db5ca0b34b9e8c38668de7307410]
	image=/boot/vmlinuz-0-rescue-55d8db5ca0b34b9e8c38668de7307410
	ramdisk=/boot/initramfs-0-rescue-55d8db5ca0b34b9e8c38668de7307410.img
	parameters="root=/dev/mapper/rhel-root console=tty0 console=ttyS0,115200 reboot=pci biosdevname=0 crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap"
Comment 30 smitterl 2021-06-11 12:04:12 UTC 
Created attachment 1790194 [details]
leapp-preupgrade.log after rebooting back into 7 after error during leapp upgrade
Comment 31 Petr Stodulka 2021-06-11 12:09:55 UTC 
*** Bug 1969278 has been marked as a duplicate of this bug. ***
Comment 32 IBM Bug Proxy 2021-06-11 12:41:13 UTC 
------- Comment From thorsten.diehl.com 2021-06-08 12:49 EDT-------
(In reply to comment #11)
> Are there more details stored somewhere why the zipl-switch-to-blscfg tool
> failed?

Hmmm. Where should I search for it?
Comment 33 IBM Bug Proxy 2021-06-11 12:41:16 UTC 
Created attachment 1790206 [details]
console_output_after_reboot
Comment 34 IBM Bug Proxy 2021-06-11 12:41:20 UTC 
Created attachment 1790207 [details]
console_output_in_emergency_shell
Comment 35 IBM Bug Proxy 2021-06-11 12:41:26 UTC 
Created attachment 1790208 [details]
console_output_after_2nd_reboot
Comment 36 IBM Bug Proxy 2021-06-11 12:41:32 UTC 
Created attachment 1790209 [details]
leapp-preupgrade output after fixing inhibitors
Comment 37 IBM Bug Proxy 2021-06-11 12:41:37 UTC 
Created attachment 1790210 [details]
output of leapp-upgrade with errors
Comment 38 IBM Bug Proxy 2021-06-11 12:41:42 UTC 
Created attachment 1790211 [details]
output of leapp-upgrade after fixing error
Comment 39 smitterl 2021-06-11 13:06:00 UTC 
(In reply to IBM Bug Proxy from comment #37)
> Created attachment 1790210 [details]
> output of leapp-upgrade with errors

Here you seem to have hit a known issue bz1783248, (details below from attachment leapp-upgrade.out).

The workaround is to create an empty config file. This doesn't change the system 'touch /etc/dasd.conf'.

Known issues - https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/upgrading_from_rhel_7_to_rhel_8/index#known-issues_troubleshooting
IBM BZ - https://bugzilla.linux.ibm.com/show_bug.cgi?id=185878
RH BZ - https://bugzilla.redhat.com/show_bug.cgi?id=1783248

"    context.copy_to('/etc/dasd.conf', '/etc/dasd.conf')
  File "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/libraries/mounting.py", line 210, in copy_to
    shutil.copy2(src, self.full_path(dst))
  File "/usr/lib64/python2.7/shutil.py", line 130, in copy2
    copyfile(src, dst)
  File "/usr/lib64/python2.7/shutil.py", line 82, in copyfile
    with open(src, 'rb') as fsrc:
IOError: [Errno 2] No such file or directory: '/etc/dasd.conf'"
Comment 40 IBM Bug Proxy 2021-06-23 14:01:27 UTC 
------- Comment From thorsten.diehl.com 2021-06-23 09:53 EDT-------
*** Bug 193104 has been marked as a duplicate of this bug. ***
Comment 41 smitterl 2021-08-23 13:20:36 UTC 
Pre-verified with:
leapp-repository-0.14.0-0.202108182050Z.ec19d1e.ec19d1e2_check_multiple_zipl_rescue_entries.PR700.el7_9

Expectation: multiple rescue entries are considered critical blocker

Steps as in description
==>
Preupgrade reports error

"Upgrade has been inhibited due to the following problems:                                                                                                     
    1. Inhibitor: Multiple rescue boot entries present in the bootloader configuration.                                                                       
    2. Inhibitor: Multiple kernels installed
    3. Inhibitor: Possible problems with remote login using root account
    4. Inhibitor: Missing required answers in the answer file
Consult the pre-upgrade report for details and possible remediation.
"

After solving other issues:

"
Upgrade has been inhibited due to the following problems:
    1. Inhibitor: Multiple rescue boot entries present in the bootloader configuration.
Consult the pre-upgrade report for details and possible remediation.
"

After removing some rescue entry process can continue and upgrade succeeds (-> 8.4, kernel 4.18.0-305.12.1.el8_4.s390x).
Comment 42 Petr Stodulka 2021-08-23 14:55:36 UTC 
Thanks Sebastian! I am setting th POST state for now. We will set the MODIFIED state once we have changes applied in the dist git / the brew build is prepared.
Comment 50 smitterl 2021-11-04 13:36:34 UTC 
Verified with:
compose id EXTRAS-7.9-RHEL-7-20211104.n.0
leapp-upgrade-el7toel8-0.15.0-6.el7_9.noarch (~ leapp-repository)

Details like in comment#41

Target system could be booted.
Target RHEL 8.
Comment 52 errata-xmlrpc 2021-11-10 09:13:09 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (leapp, leapp-repository, and cockpit-leapp bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:4603
Comment 53 Red Hat Bugzilla 2023-09-15 00:20:14 UTC 
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 500 days