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from leapp import reporting
from leapp.actors import Actor
from leapp.exceptions import StopActorExecutionError
from leapp.libraries.common.config import architecture
from leapp.models import FirmwareFacts, GrubInfo
from leapp.reporting import create_report, Report
from leapp.tags import ChecksPhaseTag, IPUWorkflowTag
GRUB_SUMMARY = ('On legacy (BIOS) systems, GRUB2 core (located in the gap between the MBR and the '
'first partition) cannot be updated during the rpm transaction and Leapp has to initiate '
'the update running "grub2-install" after the transaction. No action is needed before the '
'upgrade. After the upgrade, it is recommended to check the GRUB configuration.')
class CheckGrubCore(Actor):
"""
Check whether we are on legacy (BIOS) system and instruct Leapp to upgrade GRUB core
"""
name = 'check_grub_core'
consumes = (FirmwareFacts, GrubInfo)
produces = (Report,)
tags = (ChecksPhaseTag, IPUWorkflowTag)
def process(self):
if architecture.matches_architecture(architecture.ARCH_S390X):
# s390x archs use ZIPL instead of GRUB
return
ff = next(self.consume(FirmwareFacts), None)
if ff and ff.firmware == 'bios':
grub_info = next(self.consume(GrubInfo), None)
if not grub_info:
raise StopActorExecutionError('Actor did not receive any GrubInfo message.')
if grub_info.orig_devices:
create_report([
reporting.Title(
'GRUB2 core will be automatically updated during the upgrade'
),
reporting.Summary(GRUB_SUMMARY),
reporting.Severity(reporting.Severity.HIGH),
reporting.Groups([reporting.Groups.BOOT]),
])
else:
create_report([
reporting.Title('Leapp could not identify where GRUB2 core is located'),
reporting.Summary(
'We assumed GRUB2 core is located on the same device(s) as /boot, '
'however Leapp could not detect GRUB2 on those device(s). '
'This means GRUB2 core will not be updated during the upgrade process and '
'the system will probably ' 'boot into the old kernel after the upgrade. '
'GRUB2 core needs to be updated manually on legacy (BIOS) systems to '
'fix this.'
),
reporting.Severity(reporting.Severity.HIGH),
reporting.Groups([reporting.Groups.BOOT]),
reporting.Remediation(
hint='Please run the "grub2-install <GRUB_DEVICE>" command manually '
'after the upgrade'),
])