Thanks Jukka. That was my first guess. However before sending the email I checked it. "ls -l" is telling me this (I understand I can modify it)
$ ls -l out/test.tif -rw-r--r-- 1 jshaw staff 1356600907 May 12 11:38 out/test.tif On Mon, 12 May 2025 at 12:40, Rahkonen Jukka < jukka.rahko...@maanmittauslaitos.fi> wrote: > Hi, > > Tested with GDAL 3.12.0dev-8130fe444e, released 2025/04/28 (OSGeo4W) on > Windows. > > gdaladdo addo.tif -clean --debug on > ... > GDAL: GDALOpen(addo.tif, this=000002E622185320) succeeds as GTiff. > GTiff: ScanDirectories() > GTiff: Opened 6000x6000 overview. > GTiff: Opened 3000x3000 overview. > GTiff: Opened 1500x1500 overview. > GTiff: Opened 750x750 overview. > GTiff: Opened 375x375 overview. > GTiff: Opened 188x188 overview. > GDAL: GDALClose(addo.tif, this=000002E622185320) > > However, if I set the test file "addo.tif" into read-only with file > manager, I get the same messages than you do. Could it be that simple? > > -Jukka Rahkonen- > > ________________________________________ > Lähettäjä: gdal-dev käyttäjän Javier Jimenez Shaw via gdal-dev puolesta > Lähetetty: Maanantai 12. toukokuuta 2025 13.01 > Vastaanottaja: gdal dev > Aihe: [gdal-dev] I cannot clean overviews from GeoTIFF > > HiI am trying to clean the overviews from a GeoTIFF, but gdaladdo does not > allow me.Is that an expected behaviour? Maybe I am missing more options. > (there is no opposite of "-ro")$ gdaladdo --debug on -clean out/test.tif > GDAL: GDALOpen(out/test.tif, this=0x133058e00) succeeds as GTiff.GTiff: > ScanDirectories()GTiff: Opened 6978x5110 overview.GTiff: Opened 3489x2555 > overview.GTiff: Opened 1744x1277 overview.GTiff: Opened 872x638 > overview.GTiff: Opened 436x319 overview.GTiff: File open for read-only > accessing, creating overviews externally.ERROR 6: test.tif: Cannot add > external overviews when there are already internal overviewsCleaning > overviews failed.GDAL: GDALClose(out/test.tif, this=0x133058e00)$ gdaladdo > --versionGDAL 3.11.0 "Eganville", released 2025/05/06I am running it on a > Mac.Cheers,Javier.
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