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Bug
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Resolution: Unresolved
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Minor
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None
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rhel-8.10
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No
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Moderate
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None
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False
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Yes
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Red Hat Enterprise Linux
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None
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None
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None
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Unspecified Release Note Type - Unknown
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None
What were you trying to do that didn't work?
When a customer has XFS mount points that get "escaped" to be mounted as overlays, e.g. /var/tmp and /var_tmp, there is collision on the escape character (which is underscore), causing the following backtrace to be encountered:
MountError: Mount operation with mode loop from /var/lib/leapp/scratch/diskimages/root_var_tmp to /var/lib/leapp/scratch/mounts/root_var_tmp failed: Command ['mount', '-o', 'loop', '/var/lib/leapp/scratch/diskimages/root_var_tmp', '/var/lib/leapp/scratch/mounts/root_var_tmp'] failed with exit code 32.
What is the impact of this issue to you?
Prevents leapping
Please provide the package NVR for which the bug is seen:
leapp-upgrade-el7toel8-0.20.0-9.el7_9.noarch
How reproducible is this bug?:
Always
Steps to reproduce
- Add a disk to host 2 file systems, /var/tmp and a /var_tmp
# vgcreate data /dev/vdb # lvcreate -n tmp -L 1G data # lvcreate -n var_tmp -L 1G data # mkfs.xfs /dev/data/tmp # mkfs.xfs /dev/data/var_tmp
- Add the file systems in /etc/fstab
# mkdir /var_tmp # echo "/dev/mapper/data-tmp /var/tmp xfs defaults 0 0" >> /etc/fstab # echo "/dev/mapper/data-var_tmp /var_tmp xfs defaults 0 0" >> /etc/fstab # systemctl daemon-reload # mount -a
- Execute leapp upgrade
Expected results
No backtrace
Actual results
Backtrace when creating the userspace:
====> * target_userspace_creator
Initializes a directory to be populated as a minimal environment to run binaries from the target system.
Process Process-543:
Traceback (most recent call last):
File "/usr/lib64/python2.7/multiprocessing/process.py", line 258, in _bootstrap
self.run()
File "/usr/lib64/python2.7/multiprocessing/process.py", line 114, in run
self._target(*self._args, **self._kwargs)
File "/usr/lib/python2.7/site-packages/leapp/repository/actor_definition.py", line 74, in _do_run
actor_instance.run(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/leapp/actors/__init__.py", line 289, in run
self.process(*args)
File "/usr/share/leapp-repository/repositories/system_upgrade/common/actors/targetuserspacecreator/actor.py", line 58, in process
userspacegen.perform()
File "/usr/lib/python2.7/site-packages/leapp/utils/deprecation.py", line 42, in process_wrapper
return target_item(*args, **kwargs)
File "/usr/share/leapp-repository/repositories/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py", line 1259, in perform
scratch_reserve=reserve_space) as overlay:
File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/usr/share/leapp-repository/repositories/system_upgrade/common/libraries/overlaygen.py", line 589, in create_source_overlay
with _build_overlay_mount(root_overlay, mounts) as overlay:
File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/usr/share/leapp-repository/repositories/system_upgrade/common/libraries/overlaygen.py", line 311, in _build_overlay_mount
with _build_overlay_mount(root_mount, mounts) as mount:
File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/usr/share/leapp-repository/repositories/system_upgrade/common/libraries/overlaygen.py", line 307, in _build_overlay_mount
with current_mount:
File "/usr/share/leapp-repository/repositories/system_upgrade/common/libraries/mounting.py", line 362, in __enter__
self.mount()
File "/usr/share/leapp-repository/repositories/system_upgrade/common/libraries/mounting.py", line 337, in mount
self._create()
File "/usr/share/leapp-repository/repositories/system_upgrade/common/libraries/mounting.py", line 353, in _create
details=None)
MountError: Mount operation with mode loop from /var/lib/leapp/scratch/diskimages/root_var_tmp to /var/lib/leapp/scratch/mounts/root_var_tmp failed: Command ['mount', '-o', 'loop', '/var/lib/leapp/scratch/diskimages/root_var_tmp', '/var/lib/leapp/scratch/mounts/root_var_tmp'] failed with exit code 32.
- is documented by
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RHELDOCS-19026 [DOC][IPU] Update leapp upgrades docs for RHEL-62737: leapp backtraces when having both /var/tmp and /var_tmp mounts
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