Red Hat Bugzilla – Bug 820368
Tech notes imply that POWER5 is supported, but it is not.
Last modified: 2012-06-11 17:19:16 EDT
Description of problem: The Red Hat Enterprise Linux 6 release notes (http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.0_Release_Notes/archspecific.html) state that POWER5 is not supported, which is correct. However the technical notes (http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Technical_Notes/deployment.html) imply that it is. This is causing confusion for POWER5 customers.
18.104.22.168. IBM Power (64-bit)
When network booting an IBM Power5 series system, you may encounter an error such as:
DEFAULT CATCH!, exception-handler=fff00300
If the path that locates the kernel and ramdisk is greater than 63 characters long, it will overflow a firmware buffer and the firmware will drop into the debugger. Power6 and Power7 firmware includes a correction for this problem.
On some machines yaboot may not boot, returning the error message:
Cannot load ramdisk.image.gz: Claim failed for initrd memory at 02000000 rc=ffffffff
To work around this issue, change real-base from to c00000. Real-base can be obtained from OpenFirmware prompt with the printenv command and set with setenv command.
Please consider rewording this to state that POWER5 is not supported. Thanks.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Fixed. Thank you for submitting this bug. Please re-open should you have other requests regarding this issue.