[Bug 1347726] [NEW] ubuntu14.04 installation hang on "The installer has detected that the following disks have mounted partitions"

Wed Jul 23 14:39:52 UTC 2014

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---Problem Description---
ubuntu14.04 installation hang on 
"

               [!!] Partition disks                   

     The installer has detected that the following disks have mounted       
     partitions:? /dev/sda                                                               

  Do you want the installer to try to unmount the partitions on these    
      disks before continuing?  If you leave them mounted, you will not be   
  able to create, delete, or resize partitions on these disks, but you  may be able to install to existing partitions there.                   

      Unmount partitions that are in use?                                   
     <Go Back>             <Yes>    <No>    
"

---uname output---
 ~ # uname -a Linux ubucn 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 GNU/Linux

Machine Type = vm on dx360m4 host 

---System Hang---
 The preseed conf is:
root at ubumn14:~# cat /install/autoinst/ubucn

### Localization
d-i debian-installer/locale string en_US
d-i localechooser/supported-locales multiselect en_US.UTF-8

# Keyboard Selection
d-i console-setup/ask_detect boolean false
d-i keyboard-configuration/layoutcode string en

### Network Configuration

d-i netcfg/get_hostname string unassigned-hostname
d-i netcfg/get_domain string unassigned-domain
d-i netcfg/wireless_wep string
d-i netcfg/dhcp_timeout string 120
### Mirror settings
# If you select ftp, the mirror/country string does not need to be set.

d-i mirror/country string manual
d-i mirror/protocol string http
d-i mirror/http/directory string /install/ubuntu14.04/x86_64
d-i mirror/http/proxy string

# Suite to install.
#d-i mirror/suite string testing
# Suite to use for loading installer components (optional).
#d-i mirror/udeb/suite string testing

### Partitioning
# This creates a small /boot partition, suitable
# swap, and uses the rest of the space for the root partition:
d-i partman-auto/method string regular
d-i partman-lvm/device_remove_lvm boolean true
d-i partman-md/device_remove_md boolean true
d-i partman/unmount_active boolean true
#create the /tmp/partitioning based on the uefi or legacy bios 

d-i partman/early_command string \
    debconf-set partman-auto/disk ""
d-i partman-auto/expert_recipe_file string /tmp/partitioning

# This makes partman automatically partition without confirmation, provided
# that you told it what to do using one of the methods above.

d-i partman/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true

### Account setup 

d-i passwd/root-login boolean true
d-i passwd/make-user boolean false

d-i passwd/root-password-crypted password !!!!edited out!!!!

### Clock and time zone setup

d-i clock-setup/ntp boolean true
d-i clock-setup/ntp-server string 9.114.34.88
d-i clock-setup/utc boolean true
d-i time/zone string America/New_York

### Apt setup

d-i apt-setup/multiverse boolean false
d-i apt-setup/universe boolean false
d-i apt-setup/backports boolean false
d-i apt-setup/updates boolean false

### Boot loader installation

d-i grub-installer/only_debian boolean true

### Package selection

tasksel tasksel/first multiselect standard

# gawk required for the xCAT scripts to work
# Otherwise it installs mawk, which doesn't work

d-i pkgsel/include string  openssh-server ntp gawk nfs-common snmpd

d-i debian-installer/allow_unauthenticated string true
d-i pkgsel/update-policy select none
d-i pkgsel/updatedb boolean false

### Finishing up the installation
d-i finish-install/reboot_in_progress note

### X configuration
xserver-xorg xserver-xorg/autodetect_monitor boolean true

xserver-xorg xserver-xorg/config/monitor/selection-method \
  select medium

xserver-xorg xserver-xorg/config/monitor/mode-list \
  select 1024x768 @ 60 Hz

d-i preseed/early_command string wget http://`cat /tmp/xcatserver`/install/autoinst/ubucn.pre; \
     chmod u+x ubucn.pre; \
     ./ubucn.pre 

d-i preseed/late_command string wget http://`cat /tmp/xcatserver`/install/autoinst/ubucn.post; \
     chmod u+x ubucn.post; \
     cp ./ubucn.post /target/root/post.script; \
     mount -o bind /proc /target/proc -t proc; \
     mount -o bind /dev /target/dev; \
     mount -o bind /dev/pts /target/dev/pts -t devpts; \
     mount -o bind /sys /target/sys; \
     chroot /target /root/post.script

Install method: Network

Install disk info: 
The partition script:
ubuntu-boot ::
100 50 100 ext3
    $primary{ } $bootable{ } method{ format } format{ } use_filesystem{ } filesystem{ ext3 } mountpoint{ /boot }
    .
500 10000 1000000000 ext3
    method{ format } format{ } use_filesystem{ } filesystem{ ext3 } mountpoint{ / }
    .
2048 512 300% linux-swap
    method{ swap } format{ }
    .

Install ISO Information: # cat /install/ubuntu14.04/x86_64/.disk/info Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)root at ubumn14

> Hi Song Yang, 
> Have you tried using the latest iso build available at 
> http://cdimage.ubuntu.com/ubuntu-server/trusty/daily/current/ ?
> Can you please let us know if the iso here fixes the issue ? 
> 
> Thanks.

hi, I just  tried this trusty-server-amd64+mac.iso,  the problem still
exist.

** Affects: debian-installer (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: architecture-x8664 bugnameltc-113702 severity-critical targetmilestone-inin1404
-- 
ubuntu14.04 installation hang on "The installer has detected that the following disks have mounted  partitions"
https://bugs.launchpad.net/bugs/1347726
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