fixup! e2e-tests: cover reserved_storage in no-space scenarios

Author: detsch

docker-e2e-test/e2e-test.py

@@ -1503,19 +1503,19 @@ def run_test_reserved_storage_update_ok(reserved_storage: str):
 
     invoke_aklite(['check'])
 
-    # Fill /var/sota the same way the no-space test does, but stop at 100000 bytes free so the
+    # Fill /var/sota the same way the no-space test does, but stop at 20000000 bytes free so the
     # update can still proceed. Combined with a tiny reserved_storage (e.g. "1KiB") this proves
-    # the bytes-based path doesn't over-reserve: available (~100KB) - reserved (1KiB) is still
+    # the bytes-based path doesn't over-reserve: available (~20MB) - reserved (1KiB) is still
     # enough room for the update to land.
     statvfs = os.statvfs("/var/sota")
     available_bytes = statvfs.f_bavail * statvfs.f_frsize
     logger.info(f"Available space in /var/sota: {available_bytes} bytes")
     if available_bytes > 100000000:
         assert False, "Too much free space left, test environment should be configured to have less than 100MB free space for this test to be effective"
 
-    if available_bytes > 100000:
+    if available_bytes > 20000000:
         with open("/var/sota/fill_space", "wb") as f:
-            f.write(b"\0" * (available_bytes - 100000))
+            f.write(b"\0" * (available_bytes - 20000000))
 
     statvfs = os.statvfs("/var/sota")
     logger.info(f"Available space in /var/sota after filling it up: {statvfs.f_bavail * statvfs.f_frsize} bytes")