Red Hat Bugzilla – Bug 130642
Last modified: 2007-11-30 17:07:03 EST
Description of problem:
Anaconda fails with "IOError: [Errno 5] Input/output error". The CD
error checking (optional step) had been successful. Installation
specifics: the CD had not been mounted physically but made been
available remotely through Hewlett Packard iLO virtual CD service,
mounted as an ISO via Daemon Tools 3.46 http://www.daemon-tools.cc (OS
is installed on blade server with no local CD-ROM). Other OS
installations have had no problem using this method.
Version-Release number of selected component (if applicable):
Anaconda of RHEL AS 3.0, Update 2
Tried several times, same problem.
Steps to Reproduce:
1. Follow Install Screens
"An unhandled exception has occured. This is most likely a bug. Please
copy the full text of this exception and file a detailed bug report
against anaconde at http://bugzilla.redhat.com/bugzilla/"
File "/usr/lib/python2.2/site-packages/rhpl/comps.py", line 349, in
File "/usr/lib/python2.2/site-packages/rhpl/comps.py", line 360, in
load file = filename.read()
IOError: [Errno 5] Input/output error
Screenshots of error available as attachments.
Are there any error messages on tty4 at this point?
Created attachment 103094 [details]
PS: Screenshot attached is of RHEL AS 3.0 Update 1 where the same
Can you save the traceback? Or if lack of removable media is a
problem, switch to tty2 and scp off /tmp/anacdump.txt.
If not that, can you at least look over on tty4 for any sorts of error
messages from the kernel?
Unfortunately switching tty's does not appear to be possible (access
via a Java applet in a web browser, cannot make Ctrl + Alt + Fn work,
perhaps because lack of knowledge how to escape the function keys in
that emulation). Backtrace image attached.
Created attachment 103098 [details]
Anaconda Backtrace Screenshot
RHEL 3.0 UPD 1
This isn't the full backtrace. Please save the dump to a floppy and attach it here.
Alternately, if you don't have access to a floppy, from the debug prompt, you
and then you can copy off /tmp/anacdump.txt from the shell.
Created attachment 108742 [details]
Anaconda dump (RHEL-AS-3-U3)
Anaconda dump (taken from RHEL AS 3.0 UPD3, where same problem occurs as with
Created attachment 108743 [details]
Anaconda log (RHEL-AS-3-U3)
Anaconda Log too, just in case..
Uploaded Anaconda dump taken from RHEL AS 3.0 UPD3, problem still the
same. It was possible the previous time to work around the problem by
not using the CD-ROM #1 to boot from, but boot.iso under images. This
however does not work this time as apparently booting from boot.iso
does not offer any upgrade options, just fresh install. Upgrade from
RHEL AS 2.1 required.
Created attachment 108745 [details]
Kernel messages leading to Anaconda error
Lots of I/O errors apparently related to the CD-ROM (ISO mounted via iLO).
Interestingly boot.iso seems to work fine. Also a (see log) a quite significant
part of the install goes without error. Corruption of the ISO can be ruled out
Created attachment 108763 [details]
Media Check Result of CD - ISO (PASS)
Attached a screen dump of the PASS screen of the CD Media Check of the Boot
disk. Subsequently Anaconda fails with an I/O read error.
The errors from the CD make anaconda unable to work. -> kernel
I have the same problem with Fedora Core 3 and iLo 1.75. You cannot change the
CD during installation. We're going to have to send back our entire Blade Center
or use another Linux distro because of this problem.
This is an old bug report. If the problem still exists on current releases,
please reopen the bug (there have been numerous USB related fixes, and this
problem looks like a USB CD-ROM problem).