[Bug 1447600] Re: 15.04 installer hangs in partitioner during something else

[Uwe Geuder]

I cross-checked that the problem does not occur with ubuntu-14.04
-server-amd64.iso (same VM, excactly same virtual disk)

I also found a work-around:

1. When mkfs hangs open a console on virtual console 2
2. Use "ps" to see how mkfs was called exactly and what's the pid
3. kill -9 <pid>
4. call the same mkfs command manually (I used the -v option)
5. Go back to the installer. It will complain that formatting the filesystem has failed. Just continue

(It appears to me that the installer formatted the same filesystem once
more after the error. The 2nd attempt (or 3rd if counting the manual
one) just worked. I did not debug the details, because it would require
one or even several more installations. I was glad it finally worked for
me after several hours)

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https://bugs.launchpad.net/bugs/1447600

Title:
  15.04 installer hangs in partitioner during something else

Status in ubiquity package in Ubuntu:
  Triaged

Bug description:
  In both Ubuntu and Lubuntu 15.04, when performing a "Something Else"
  install, the installer hangs when trying to format /.

  I was trying a Something Else install on 32 bit.  I asked to format
  sda1 as ext4 and mount at /.  I asked to not format sda3 and mount at
  /home.  I asked to use sda5 as swap.  Installer just stopped with no
  hard drive or CD activity.  No formatting was performed.

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