The installer crashes without obvious reason... tells me he failed to migrate settings (from exisiting home partition)

Bug #994510 reported by Oz123 on 2012-05-04
This bug affects 1 person
Affects Status Importance Assigned to Milestone
migration-assistant (Ubuntu)
ubiquity (Ubuntu)

Bug Description

see log attached.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.10.16
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
Uname: Linux 3.2.0-23-generic-pae i686
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
CasperVersion: 1.315
Date: Fri May 4 12:42:57 2012
InstallCmdLine: initrd=/casper/initrd.lz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash -- BOOT_IMAGE=/casper/vmlinuz
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
 PATH=(custom, no user)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

Oz123 (nahumoz) wrote :
Oz123 (nahumoz) wrote :

OK, it seems the problem is that it tries to mount a ufs partition that I have on the harddrive as read-write,
1. IMHO damn stupid , or put more politely, dangerous - if you just want to migrate settings.... why write ?
Is ubuntu doing some stuff with my files ???
2. Second who asked the installer to launch the migration assistant to lunch ? Assuming so many things on the end user
is certainly not healthy.

The installer should politly ask if I want to migrate settings from this partitions, and certainly not mount it in write mode.

The error I see:
Ubuntu kernel: ufs was compiled with read-only support, can't be mounted as read-write
Ubuntu migration-assistant: error: Failed to mount /dev/sda13

Exception during installation:
May 4 10:42:45 ubuntu Traceback (most recent call last):
May 4 10:42:45 ubuntu File "/usr/lib/ubiquity/ubiquity/", line 285, in pulse
May 4 10:42:45 ubuntu self.db.subst(, 'TIME', time_str)
May 4 10:42:45 ubuntu File "/usr/lib/python2.7/dist-packages/", line 60, in <lambda>
May 4 10:42:45 ubuntu lambda *args, **kw: self.command(command, *args, **kw))
May 4 10:42:45 ubuntu File "/usr/lib/python2.7/dist-packages/", line 81, in command
May 4 10:42:45 ubuntu status = int(status)
May 4 10:42:45 ubuntu ValueError: invalid literal for int() with base 10: ''
May 4 10:42:45 ubuntu

tags: added: installer-crash
Brian Murray (brian-murray) wrote :

I'm not positive the migration-assistant issue with your ufs partition is the root cause of your installation failure, so I'll open a migration assistant task.

Changed in migration-assistant (Ubuntu):
importance: Undecided → Medium
Oz123 (nahumoz) wrote :


My installation finished successfully with sudo ubiquity --no-migration-assistant, so I am quite sure it is the migration assistant.
You are welcome to install ubuntu on a device with UFS partition and see if you bump into this issue. I am quite sure you will.
I am also quite sure that it is not so common that ubuntu is installed side by side along FreeBSD, after all, I admit FreeBSD is an esoteric OS.


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