【发布时间】：2014-01-30 03:43:12
【问题描述】：
我正在通过升级向导将我们的 Sugar 实例从当前版本 6.3.1 升级到 6.4.6，我可以成功完成系统检查的第一步，但是当我继续上传升级包时屏幕空白。我确保 memory_limit 和 max_execution_time 在 php.ini 中是合适的，但这也无济于事。升级向导日志也无济于事，它只是说：
Wed, 29 Jan 2014 10:33:24 -0500 [UpgradeWizard] - setting session variables...
Wed, 29 Jan 2014 10:33:24 -0500 [UpgradeWizard] - -----------------------------------------------------------------------------
Wed, 29 Jan 2014 10:33:24 -0500 [UpgradeWizard] - Upgrade started. At start.php
Wed, 29 Jan 2014 10:33:24 -0500 [UpgradeWizard] - at unlinkTempFiles()
Wed, 29 Jan 2014 10:33:24 -0500 [UpgradeWizard] - finished!
Wed, 29 Jan 2014 10:33:24 -0500 [UpgradeWizard] - resetting $_SESSION
Wed, 29 Jan 2014 10:38:22 -0500 [UpgradeWizard] - setting session variables...
Wed, 29 Jan 2014 10:38:22 -0500 [UpgradeWizard] - [At systemCheck.php]
Wed, 29 Jan 2014 10:38:22 -0500 [UpgradeWizard] - Starting file permission check...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Finished file permission check.
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Starting database permissions check...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Checking CREATE TABLE permissions...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Checking INSERT INTO permissions...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Checking UPDATE TABLE permissions...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Checking SELECT permissions...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Checking validity of SELECT results
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Checking DELETE FROM permissions...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Checking ALTER TABLE ADD COLUMN permissions...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Checking ALTER TABLE CHANGE COLUMN permissions...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Checking ALTER TABLE DROP COLUMN permissions...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Checking DROP TABLE permissions...
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - No permissions errors found!
Wed, 29 Jan 2014 10:39:06 -0500 [UpgradeWizard] - Finished database permissions check.
Wed, 29 Jan 2014 10:44:18 -0500 [UpgradeWizard] - setting session variables...
Wed, 29 Jan 2014 10:44:18 -0500 [UpgradeWizard] - At upload.php
Wed, 29 Jan 2014 10:44:18 -0500 [UpgradeWizard] - finding new files for upgrade
根据blog，我将 php.ini 中的设置修改为：
max_execution_time = 14400
max_input_time = 14400
memory_limit = 768M
post_max_size = 128M
upload_max_filesize = 128M
但我仍然得到空白屏幕。我尝试重新启动服务器，但这也没有帮助。知道可能出了什么问题吗？
【问题讨论】：