This bug is also present in Ubuntu 12.04 Precise Alpha. I cannot install Precise because it trying to import the settings from another Ubuntu installation, and I have two users on partition
** Description changed: + Steps to reproduce: + 1. Install some Ubuntu (ex. 10.04) on partition and add several users on them. Each of them should have own firefox configuration. + 2. Run Ubuntu 12.04 Precise installation and run installation on new partition. It will hangs, because it was unable to unmount the partition with two users + Binary package hint: ubiquity While installing Natty beta2 from USB flash drive, I was unable to complete the install due to the installer not being able to unmount /dev/sda10: Apr 25 11:43:51 ubuntu ubiquity: umount: cannot umount /dev/sda10 -- /dev/sda6 is mounted over it on the same point. Apr 25 11:44:06 ubuntu ubiquity: umount: cannot umount /dev/sda10 -- /dev/sda6 is mounted over it on the same point. Apr 25 11:44:18 ubuntu ubiquity[4551]: Reverting lockdown the desktop environment. Apr 25 11:44:19 ubuntu activate-dmraid: No Serial ATA RAID disks detected Apr 25 11:44:19 ubuntu ubiquity: umount: /target: device is busy. Apr 25 11:44:19 ubuntu ubiquity: (In some cases useful info about processes that use Apr 25 11:44:19 ubuntu ubiquity: the device is found by lsof(8) or fuser(1)) - Apr 25 11:44:19 ubuntu ubiquity: - + Apr 25 11:44:19 ubuntu ubiquity: It appears that multiple filesystems have been mounted on /target: Filesystem Size Used Avail Use% Mounted on aufs 869M 163M 662M 20% / none 1.7G 724K 1.7G 1% /dev /dev/sdb1 2.0G 1.6G 387M 81% /cdrom /dev/loop0 656M 656M 0 100% /rofs none 1.7G 1.4M 1.7G 1% /dev/shm tmpfs 1.7G 68K 1.7G 1% /tmp none 1.7G 96K 1.7G 1% /var/run none 1.7G 4.0K 1.7G 1% /var/lock /dev/sda12 11G 2.5G 8.0G 24% /target /dev/sda13 11G 2.5G 8.0G 24% /target/home /dev/sda10 11G 2.5G 8.0G 24% /target /dev/sda11 11G 2.5G 8.0G 24% /target/home /dev/sda6 11G 2.5G 8.0G 24% /target - The partition that is actually mounted on /target is the newly installed partition: - ubuntu@ubuntu:/$ cat /target/etc/lsb-release + ubuntu@ubuntu:/$ cat /target/etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=11.04 DISTRIB_CODENAME=natty DISTRIB_DESCRIPTION="Ubuntu Natty (development branch)" - /proc/mounts does not show the extra partitions being mounted: - ubuntu@ubuntu:/$ cat /proc/mounts + ubuntu@ubuntu:/$ cat /proc/mounts rootfs / rootfs rw 0 0 none /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0 none /proc proc rw,nosuid,nodev,noexec,relatime 0 0 none /dev devtmpfs rw,relatime,size=1727568k,nr_inodes=431892,mode=755 0 0 none /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0 /dev/sdb1 /cdrom vfat rw,relatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 0 /dev/loop0 /rofs squashfs ro,noatime 0 0 /dev/loop1 /cow ext3 rw,noatime,errors=continue,barrier=0,data=ordered 0 0 aufs / aufs rw,noatime,si=8dfd2b3e7eb58761 0 0 none /sys/kernel/debug debugfs rw,relatime 0 0 none /sys/kernel/security securityfs rw,relatime 0 0 none /dev/shm tmpfs rw,nosuid,nodev,relatime 0 0 tmpfs /tmp tmpfs rw,nosuid,nodev,relatime 0 0 none /var/run tmpfs rw,nosuid,relatime,mode=755 0 0 none /var/lock tmpfs rw,nosuid,nodev,noexec,relatime 0 0 binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,nosuid,nodev,noexec,relatime 0 0 /dev/sda12 /target ext4 rw,relatime,errors=remount-ro,barrier=1,data=ordered 0 0 proc /target/proc proc rw,relatime 0 0 sysfs /target/sys sysfs rw,relatime 0 0 none /target/dev devtmpfs rw,relatime,size=1727568k,nr_inodes=431892,mode=755 0 0 gvfs-fuse-daemon /home/ubuntu/.gvfs fuse.gvfs-fuse-daemon rw,nosuid,nodev,relatime,user_id=999,group_id=999 0 0 - ubuntu@ubuntu:/$ cat /etc/mtab aufs / aufs rw 0 0 none /proc proc rw,noexec,nosuid,nodev 0 0 none /sys sysfs rw,noexec,nosuid,nodev 0 0 fusectl /sys/fs/fuse/connections fusectl rw 0 0 none /dev devtmpfs rw,mode=0755 0 0 none /dev/pts devpts rw,noexec,nosuid,gid=5,mode=0620 0 0 /dev/sdb1 /cdrom vfat rw,relatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 0 /dev/loop0 /rofs squashfs ro,noatime 0 0 none /sys/kernel/debug debugfs rw 0 0 none /sys/kernel/security securityfs rw 0 0 none /dev/shm tmpfs rw,nosuid,nodev 0 0 tmpfs /tmp tmpfs rw,nosuid,nodev 0 0 none /var/run tmpfs rw,nosuid,mode=0755 0 0 none /var/lock tmpfs rw,noexec,nosuid,nodev 0 0 binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,noexec,nosuid,nodev 0 0 /dev/sda12 /target ext4 rw,errors=remount-ro 0 0 /dev/sda13 /target/home ext4 rw 0 0 /dev/sda10 /target ext4 rw 0 0 /dev/sda11 /target/home ext4 rw 0 0 /dev/sda6 /target ext3 rw 0 0 /dev /target/dev none rw,bind 0 0 gvfs-fuse-daemon /home/ubuntu/.gvfs fuse.gvfs-fuse-daemon rw,nosuid,nodev,user=ubuntu 0 0 ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: ubiquity 2.6.5 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Uname: Linux 2.6.38-8-generic x86_64 Architecture: amd64 Date: Mon Apr 25 12:38:53 2011 LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413) ProcEnviron: - LANGUAGE=en_US:en - LANG=en_US.UTF-8 - SHELL=/bin/bash + LANGUAGE=en_US:en + LANG=en_US.UTF-8 + SHELL=/bin/bash SourcePackage: ubiquity UpgradeStatus: No upgrade log present (probably fresh install) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/770480 Title: Multiple filesystems are mounted on same mountpoint To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/770480/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs