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fix: provide actionable error message for Drive mount credential failures #5805

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fix: provide actionable error message for Drive mount credential failures #5805

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e2334f9
fix: improve error messaging for Drive mount credential failures (#5798)
abdulwahabahmedkhanyusufzai Jan 26, 2026
0a3e40f
fix: generalize Drive mount error message and fix dead link
abdulwahabahmedkhanyusufzai Jan 26, 2026
98a3794
fix: improve error message for credential propagation issues during D…
abdulwahabahmedkhanyusufzai Jan 27, 2026
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24 changes: 19 additions & 5 deletions google/colab/drive.py
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Original file line number Diff line number Diff line change
Expand Up @@ -131,11 +131,25 @@ def _mount(
else _os.environ['TBE_CREDS_ADDR']
)
if ephemeral:
_message.blocking_request(
'request_auth',
request={'authType': 'dfs_ephemeral'},
timeout_sec=int(timeout_ms / 1000),
)
try:
_message.blocking_request(
'request_auth',
request={'authType': 'dfs_ephemeral'},
timeout_sec=int(timeout_ms / 1000),
)
except Exception as e:
if 'credential propagation' in str(e).lower():
raise RuntimeError(
'Credential propagation was unsuccessful. This may happen if third-party cookies \n'
'are blocked by your browser or if your account has Advanced Protection enabled.\n\n'
'Common troubleshooting steps:\n'
' - Brave: disable "Shields" for colab.research.google.com\n'
' - Chrome: allow third-party cookies for colab.research.google.com\n'
' - Safari: disable "Prevent Cross-Site Tracking"\n'
' - Account: check if "Advanced Protection" is enabled for your Google Account.\n'
'See: https://colab.research.google.com/notebooks/io.ipynb for more details.'
) from e
raise

mountpoint = _os.path.expanduser(mountpoint)
# If we've already mounted drive at the specified mountpoint, exit now.
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