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Log an error message in known error cases and log a backtrace
otherwise.
Define a new error type OgError to be used in all the 'raise'
blocks to define the error message to log. The exception
propagates until it reaches send_internal_server_error() where
the exception type is checked. If the type is OgError we log
the exception message. Logs the backtrace for other types.
The initial error implementation printed a backtrace everytime
an error ocurred. The next iteration changed it to only print
a backtrace in a very particular case but ended up omiting too
much information such as syntax errors or unknown error context.
The actual implementation only logs the cases we already cover in
the codebase and logs a bracktrace in the others, enabling a
better debugging experience.
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Replace unexistent mountpoint variable to report a failed
mount operation before an OS probe from a partition.
Improve the semantics of the error message replacing 'at' with
'into'.
Remove the period at the end of the log message.
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Implement a Python equivalent of ogCopyEfiBootLoader as the
function copy_efi_bootloader. This function copies the contents of
the folder of the EFI loader in the ESP into a ogBoot folder at
the root of the partition target of an image creation.
copy_efi_bootloader is a Windows only functionality.
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Make is_uefi_supported() only check for /sys/firmware/efi as
get_efi_partition() will detect a missing ESP or an invalid
partition scheme. Stop using get_efi_partition() inside
is_uefi_supported() as the former is eventually called in every
UEFI related code.
UEFI supports both MBR and GPT as partition schemes and this is
a required change to handle the particular case of Windows not
being able to boot UEFI from a MBR partition scheme.
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Use only the exception messages as the main resource for error
messages.
The previous error code had string duplication in the form of:
logging.error('msg here')
raise Exception('msg here')
That approach also has the downside of having log duplication as
it had the local logging.err() and a global logging.exception()
inside send_internal_server_error capturing the exception message.
The actual code only requires raising an exception with a proper
error message.
Improve exception messages to give more error context.
Log every AssertionError as a backtrace.
Use the 'raise Exception from e' syntax to modify the a previously
raised exception 'e' into an exception with aditional context or
different type. This also prevents the message that warns about
newer exceptions being launch after an initial exception.
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Checking the existence /sys/firmware/efi as it might appear
sometimes in BIOS installs if the BIOS configuration is not
proper. Checking for the EFI partition is the safest method
to veryfy the install type.
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debian package with json support provides the binary through this path, update it.
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The json functionality proposed upstream might be merged one day
in efibootmgr so deploying a fork would not be needed anymore.
This change aims to ease the migration once that day comes.
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Add UEFI related utilities inside a new utility module: uefi.py
_check_efibootmgr_json
======================
Check if the system efibootmgr executable supports JSON output. This is
a private function used only by other functions from uefi.py.
is_uefi_supported
=================
Check if the system supports UEFI firmware.
run_efibootmgr_json
===================
Runs efibootmgr with json output support. Return the JSON output as a
Python dict.
efibootmgr_create_bootentry
===========================
Create nvram boot entry. This bootentry is usually later set to boot
next just once via "BootNext" nvram variable.
efibootmgr_delete_bootentry
===========================
Delete a nvram boot entry. Used to avoid duplicates when booting the
same disk and partition from a given client.
efibootmgr_bootnext
===================
Set nvram "BootNext" variable to a given boot entry so after client
reboot, PXE is not executed and the given boot entry takes precedence.
Add dependency with efibootmgr version >= 18, and efibootmgr JSON output
which is currently out of tree from util-linux repo.
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