Public bug reported:
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:
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
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
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
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug natty running-unity
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https://bugs.launchpad.net/bugs/770480
Title:
Multiple filesystems are mounted on same mountpoint
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