Public bug reported:
We're seeing an issue installing 8.04 64 Bit onto a machine with an
Intel DG35EC motherboard and a Q9550 Quad Core processor.
The installer starts up incredibly slowly, and then hangs. With the
quiet option removed you can see some of the commands taking several
seconds when they usually fly by. For example there is a 10 second delay
at "Early unpacking initramfs" and another 15-20 second delay at
"Checking if image is initramfs".
The last two messages shown are:
EDD information not available
freeing unused Kernel memory: 320K freed.
The install then hangs and when left long enough the screen eventually
goes blank.
I can get the installation passed this point using the kernel options
"noapic nolapic nosmp" but the installer is still incredibly slow,
taking several minutes to get to network card detection, and a few more
minutes before it will try a DHCP lookup (when the installation is
running over PXE). At this point the DHCP lookup fails, but there aren't
any entries in the DHCP server logs to suggest a lookup was actually
performed.
I've seen a similar issue with DHCP before which was driver related, but
both 32 and 64 bit versions work with this network card (the on board
one) when a different processor is used and the above kernel options are
not used.
I have tried different combinations of Bios settings (speedstep, VT,
SATA modes etc) but none make a difference. The Bios is the latest
version available from Intel.
This error occurs on both the 8.04.3 cd installer, and the 8.04.3 PXE
image. The 32 bit version of 8.04 installs correctly on this hardware,
and the 64 bit version installs on exactly the same setup when using a
dual core processor (E6850). We have tested several machines with the
same setup to rule out faulty CPU's, and on all of them 32 bit will
install whereas 64 bit will not.
The problem does not occur using 9.04, however these will be live
production servers and I need to use an LTS release.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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Installer hangs during install on Intel Q9550 Quad Core processor
https://bugs.launchpad.net/bugs/426330
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