[Bug 1080701] Re: After 'Preparing to install Ubuntu' screen, raring installation hangs

[Dmitrijs Ledkovs]

On 19 April 2013 17:03, Erick Brunzell <lbsolost at yahoo.com> wrote:
> @ Dmitrijs,
>
> I think I did a bad job of explaining that, I did try my best.
>
> My point is that whatever was added to ubiguity to display System info
> may have just slowed the installation process in complex muti-boots and
> multiple disc installs to a point where users think it's frozen, when in
> fact it's still "reading" info.
>

Yes, there could be a fine line between "takes to long" and it is
actually hanging.
I remember receiving reports of machines hanging, with ps outputs send
to me of "stuck" processes.

System info column, is irrelevant, we always did that OS scan and
displayed that info the into drop-down for "target device to install
bootloader", we simply added a column to also display it in the table
view.
It did not any extra, processing at all.

Regards,

Dmitrijs.

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https://bugs.launchpad.net/bugs/1080701

Title:
  After 'Preparing to install Ubuntu' screen, raring installation hangs

Status in “ubiquity” package in Ubuntu:
  Confirmed
Status in “ubiquity” source package in Raring:
  Confirmed

Bug description:
  Test steps:
  1. Boot the machine with usb
  2. Enter the wireless password to enable the wifi connection
  3. Wait to hear the drums  and select 'Install Ubuntu' with English being the language selection
  4. Click 'Continue' with the default selections on the 'Preparing  to install ubuntu' screen( where it shows the power, available disk space and internet connectivity statu)
  5. The installation does not proceed from this point

  Workarounds:
  It has been reported within this bug that deleting extended partitions, or disabling swap, or mounting partitions "helps" to bypass the problem.

  Why is this not fixed yet:
  Well, at the moment the cause of hangs has not been determined. The best way to aid Ubuntu Installer team at fixing this bug is to provide a reproducible test case of this hang, that is is steps that one needs to perform to setup a VM / real machine that will exhibit such hang. At the moment we don't know how to trigger this bug and thus diagnose & fix it.

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