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Bug
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Resolution: Done-Errata
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Critical
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rhel-7.9.z
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leapp-repository-0.20.0-3.el7_9
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None
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Critical
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1
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rhel-sst-upgrades
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26
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6
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False
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None
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Leapp: 9.5 & 10.0 public beta
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Requested
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None
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If docs needed, set a value
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Unspecified
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None
Description of problem:
If you attempt a leapp upgrade and the boot disk's embedded area is too small (ie. the boot disk's first partition starts on a low sector number such as 63) for the core.img file then the grub2-install fails during the upgrade kernel portion of the upgrade. Normally the first partition starts on 2048.
grub2-install error example during upgrade kernel:
~~~ 2023-03-21 10:18:41.722 INFO PID: 70738 leapp.workflow.RPMUpgrade.update_grub_core: GRUB is installed on /dev/sda 2023-03-21 10:18:41.728 DEBUG PID: 70738 leapp.workflow.RPMUpgrade.update_grub_core: External command has started: ['grub2-install', u'/dev/sda'] 2023-03-21 10:18:41.753 DEBUG PID: 70738 leapp.workflow.RPMUpgrade.update_grub_core: Installing for i386-pc platform. 2023-03-21 10:18:42.728 DEBUG PID: 70738 leapp.workflow.RPMUpgrade.update_grub_core: grub2-install: warning: ../grub-core/partmap/msdos.c:401:your core.img is unusually large. It won't fit in the embedding a rea. 2023-03-21 10:18:42.735 DEBUG PID: 70738 leapp.workflow.RPMUpgrade.update_grub_core: grub2-install: warning: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged.. 2023-03-21 10:18:42.741 DEBUG PID: 70738 leapp.workflow.RPMUpgrade.update_grub_core: grub2-install: error: will not proceed with blocklists. 2023-03-21 10:18:42.747 DEBUG PID: 70738 leapp.workflow.RPMUpgrade.update_grub_core: Command ['grub2-install', u'/dev/sda'] failed with exit code 1. 2023-03-21 10:18:42.759 DEBUG PID: 70738 leapp.workflow.RPMUpgrade.update_grub_core: External command has finished: ['grub2-install', u'/dev/sda'] 2023-03-21 10:18:42.766 WARNING PID: 70738 leapp.reporting: Stable Key report entry not provided, dynamically generating one - 54ba8c51e17b2088df653f3df0f1ae490f9ead88 2023-03-21 10:18:42.779 WARNING PID: 70738 leapp.workflow.RPMUpgrade.update_grub_core: GRUB core update on /dev/sda failed ~~~
After rebooting this leads to a can't boot scenario where it fails to boot at the grub rescue shell with a message:
~~~ error: symbol 'grub_calloc' not found. Entering rescue mode... grub rescue> ~~~
or
~~~ error: symbol 'grub_real_boot_time' not found. ~~~
Version-Release number of selected component (if applicable):
leapp-0.15.0-2.el7_9.noarch
How reproducible:
Every time
Steps to Reproduce:
1. Make a RHEL 7 boot disk with the first partition starting on sector 75 or another early sector (to do this I had to create the partitions using a RHEL 6 version of fdisk).
2. leapp upgrade
3. Reboot to upgrade kernel, during this you may witness the grub2-install failure
4. Reboot again and see the boot failure to grub rescue shell
Actual results:
No inhibitor with messages about the boot device's embedded area being too small so the system fails to boot to grub rescue after the upgrade.
Expected results:
Inhibitor with message that the boot disk has insufficient space in the embedded area to perform grub2-install so that we can catch this before a can't boot scenario.
- external trackers
- links to
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RHBA-2024:131880
leapp and leapp-repository bug fix and enhancement update
- mentioned in
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