Upon upgrade there was several "Failed:"

The following queries were executed
image_attach module
Update #6100

* ALTER TABLE {image_attach} CHANGE `nid` `nid` INT unsigned NOT NULL DEFAULT 0
* ALTER TABLE {image_attach} CHANGE `iid` `iid` INT unsigned NOT NULL DEFAULT 0
* Failed: ALTER TABLE {image_attach} DROP PRIMARY KEY
* ALTER TABLE {image_attach} ADD PRIMARY KEY (nid)
* Failed: ALTER TABLE {image_attach} DROP INDEX iid
* ALTER TABLE {image_attach} ADD INDEX iid (iid)
* If you see a message of the form "Failed: ALTER TABLE {image_attach} DROP PRIMARY KEY" or "DROP INDEX iid" here it is harmless.

Update #6101

* DELETE FROM {blocks} WHERE module = 'image_attach' AND delta = '0'

Update #6102

* ALTER TABLE {image_attach} DROP PRIMARY KEY
* ALTER TABLE {image_attach} ADD PRIMARY KEY (nid, iid)
* ALTER TABLE {image_attach} ADD `weight` INT NOT NULL DEFAULT 0

Update #6103

* DELETE FROM {image_attach} WHERE iid = 0

image_gallery module
Update #6100

* No queries

Update #6101

* No queries

image module
Update #6100

* ALTER TABLE {image} CHANGE `nid` `nid` INT unsigned NOT NULL DEFAULT 0
* ALTER TABLE {image} CHANGE `fid` `fid` INT unsigned NOT NULL DEFAULT 0
* Failed: ALTER TABLE {image} DROP PRIMARY KEY
* ALTER TABLE {image} ADD PRIMARY KEY (nid, image_size)
* Failed: ALTER TABLE {image} DROP INDEX image_fid
* ALTER TABLE {image} ADD INDEX fid (fid)
* If you see a message of the form "Failed: ALTER TABLE {image} DROP PRIMARY KEY" or "DROP INDEX image_fid" here it is harmless.

Update #6101

* No queries

Update #6102

* No queries

Update #6103

* No queries