[Bug 313452] Re: running the installer from a non-optical medium, it fails trying to unmount /cdrom

Bougron Francis.Bougron at free.fr
Mon May 23 14:45:05 UTC 2016


This still exits in 16.04 and it is impossible to install  the EFI repertory in /EFI of this partition  However it is possible to use another partition. but 
After finish the installation   it is not possible to copy on these partition because 
ubuntu at ubuntu:/$ ls /cdrom
ubuntu at ubuntu:/$ sudo mount -v /dev/sda1 /mnt/A
mount: /dev/sda1 is already mounted or /mnt/A busy
ubuntu at ubuntu:/$ ls /mnt/A
ubuntu at ubuntu:/$ fuser /dev/sda1
ubuntu at ubuntu:/$

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https://bugs.launchpad.net/bugs/313452

Title:
  running the installer from a non-optical medium, it fails trying to
  unmount /cdrom

Status in base-installer package in Ubuntu:
  Fix Released
Status in ubiquity package in Ubuntu:
  Fix Released
Status in Baltix:
  New

Bug description:
  Binary package hint: base-installer

  I performed a CD-less installation as instructed in the Ubuntu
  documentation.

  I repartitioned my HD as follows:
  1: Hardy (JFS)
  2: Swap
  3: extended
  5: Intrepid (JFS)
  6: Jaunty (JFS)
  7: installer (ext2)

  I then unpackaged the Alpha 2 Kubuntu AMD64 installer CD (jaunty-
  desktop-amd64.iso) onto the Installer partition, and booted up from
  it.

  The system started up and I was able to start the installer.

  The installer works, until it was time to partition the HD. I tried to
  select the Jaunty partition, and clicked Edit parition, but nothing
  happens. I cannot check the "format" checkbox, and cannot set mount
  point.

  I then deleted the Jaunty partition, and chose to create a new one. I
  chose JFS and root mount point from the dropdown menu. The partition
  was created as ext2 (or ext3, can't remember now) and the mount point
  was root.

  I was unhappy with this, so I again deleted and created the
  paritition, making sure that the filesystem and mount point options
  were corrected. Now the partition was created as ext2 (or ext3) and
  the mount point was /home.

  It appears the installer completely disregards the partitioning
  choices made by the user.

  After doing the process one more time (perhaps also a reboot, can't
  remember for sure), I decided to accept an ext2/ext3 system, and tried
  to finish the install. At this point the system complains that in
  order to modify the partition table, it would need to unmount all
  filesystems on the hard drive, which is a bit odd since the change
  made did not affect the installer partition in any way. At this point
  the installation failed, and there was no way to get past this
  problem.

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