PowerMac G5 sticks on blue screen when it's starting up

Ah, sorry, I got confused with the Yosemite tag! 😊 😢

"Try Disk Utility

1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.

2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)

*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*

3. Click the First Aid tab.

4. Select your Mac OS X volume.

5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."

http://docs.info.apple.com/article.html?artnum=106214

Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.

(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive & clear caches.)

If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.

Tough without the Install disc, but some things to try...

Does it boot to Single User Mode, CMD+s keys at bootup, if so try...

/sbin/fsck -fy

Repeat until it shows no errors fixed.

(Space between fsck AND -fy important).

http://www.westwind.com/reference/os-x/commandline/single-user.html

If none of that works & it's not 10.5.x Server edition we have something else to try.

Hi Rick, start with this & let us know the outcome please.

If 10.7.0 or later...

Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.

Ah, good to hear! 🙂

Does it work in regular boot now also?

😀