Comment 6 for bug 181452

Still present in the release version of Karmic Koala:

$ lsb_release -rd
Description: Ubuntu 9.10
Release: 9.10

$ apt-cache policy libufs2
libufs2:
  Installed: 7.2-1
  Candidate: 7.2-1
  Version table:
 *** 7.2-1 0
        500 http://fi.archive.ubuntu.com karmic/universe Packages
        100 /var/lib/dpkg/status

$ apt-cache policy linux-image-2.6.31-16-generic
linux-image-2.6.31-16-generic:
  Installed: 2.6.31-16.52
  Candidate: 2.6.31-16.52
  Version table:
 *** 2.6.31-16.52 0
        500 http://fi.archive.ubuntu.com karmic-updates/main Packages
        500 http://security.ubuntu.com karmic-security/main Packages
        100 /var/lib/dpkg/status

from dmesg:

[42186.821767] sd 10:0:0:0: [sdb] Assuming drive cache: write through
[42186.821774] sd 10:0:0:0: [sdb] Attached SCSI removable disk
[42214.144308] ufs was compiled with read-only support, can't be mounted as read-write
[42227.398989] ufs was compiled with read-only support, can't be mounted as read-write