Ubuntu
ubiquity package

  1. Bug #1155216
  2. Comment #6

Comment 6 for bug 1155216

Revision history for this message
oldfred (oldfred) wrote : Re: Unable to umount isodevice

This similar bug says to use toram boot paramater, but if installer offers to unmount partition, it still should do that.

https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/684280
Post #14 by experimancer

Fix is actully here: https://help.ubuntu.com/community/Grub2/ISOBoot (i.e add "toram" to relevant Grub2 menuentry or manually umount the /isodevice with "sudo umount -lrf /isodevice" and re-start the installation.