[Bug 1443692] Re: [Kubuntu 15.04 beta] Failed to format ext4 partition in the installation

[YAFU]

The problem seems to be solved according to comments on this related thread:
https://www.kubuntuforums.net/showthread.php?67845-Installer-stops-at-33

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Title:
  [Kubuntu 15.04 beta] Failed to format ext4 partition in the
  installation

Status in ubiquity package in Ubuntu:
  New

Bug description:
  Kubuntu 15.04 64 bits (Vivid Vervet) from daily build 08/04/2015.

  $ lsb_release -rd
  Description:    Ubuntu Vivid Vervet (development branch)
  Release:        15.04

  $ apt-cache policy ubiquity
  ubiquity:
    Instalados: (ninguno)
    Candidato:  2.21.18
    Tabla de versión:
       2.21.18 0
          500 http://ar.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
  ==========
  Disk /dev/sda: 149,1 GiB, 160041885696 bytes, 312581808 sectors
  Units: sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 512 bytes
  I/O size (minimum/optimal): 512 bytes / 512 bytes
  Disklabel type: dos
  Disk identifier: 0xf069f069

  Device     Boot     Start       End   Sectors   Size Id Type
  /dev/sda1  *           63  20547134  20547072   9,8G  7 HPFS/NTFS/exFAT
  /dev/sda2        20547584  61431807  40884224  19,5G 83 Linux
  /dev/sda3        61432684 312576704 251144021 119,8G  f W95 Ext'd (LBA)
  /dev/sda5        61432686 110983167  49550482  23,6G 83 Linux
  /dev/sda6       110985216 125386751  14401536   6,9G 83 Linux
  /dev/sda7       125387388 188313929  62926542    30G 83 Linux
  /dev/sda8       188313993 284784254  96470262    46G  b W95 FAT32
  /dev/sda9       284784318 302295104  17510787   8,4G  7 HPFS/NTFS/exFAT
  /dev/sda10      302295168 306388991   4093824     2G  7 HPFS/NTFS/exFAT
  /dev/sda11      306391743 312576704   6184962     3G 82 Linux swap / Solaris
  =========
  =====
  =

  The partition in question is "sda2".

  "sda2" previously existed and had data on it. I had selected Kubuntu manual disk installation as usual, and I chose formatted "sda2" as ext4 and mount as "/". When it began installing it remained static at 33% without progress. Then I tried from KDE "partitionmanager" from the LiveDVD and trying to delete and format "sda2" as ext4 and it also failed with the following message:
  ==
  KDE Partition Manager: SMART Status Report
  Date: 	4/12/15 7:41 PM
  Program version: 	1.2.1
  Backend: 	pmlibpartedbackendplugin (1)
  KDE Frameworks version: 	5.7.0
  Machine: 	Linux kubuntu 3.19.0-12-generic #12-Ubuntu SMP Fri Apr 3 04:03:26 UTC 2015 x86_64

  Delete partition ‘/dev/sda2’ (19.50 GiB, unknown)
  Job: Delete file system on ‘/dev/sda2’
  Delete file system on ‘/dev/sda2’: Success
  Job: Delete the partition ‘/dev/sda2’
  Delete the partition ‘/dev/sda2’: Success
  Delete partition ‘/dev/sda2’ (19.50 GiB, unknown): Success
  Create a new partition (19.50 GiB, ext4) on ‘/dev/sda’
  Job: Create new partition on device ‘/dev/sda’
  Create new partition ‘/dev/sda2’: Success
  Job: Create file system ‘ext4’ on partition ‘/dev/sda2’
  Command: mkfs.ext4 -q /dev/sda2

  Proceed anyway? (y,n)

  
  Create file system ‘ext4’ on partition ‘/dev/sda2’: Error
  Create a new partition (19.50 GiB, ext4) on ‘/dev/sda’: Error
  ==
  So I entered to my 14.04 installation, and I could delete and format "sda2" as ext4 from GParted. After this the Kubuntu 15.04 installation  was successful only selecting "sda2" as "/" without format the partition.

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