Update Throws errors but completes

[Arenlor]

Setting up libsane (1.0.19-21ubuntu2) ...
udev active, devices will be created in /dev/.static/dev/
rm: cannot remove `parport0-': Read-only file system
mknod: `parport0-': Read-only file system
makedev parport0 c 99 0 root lp 0660: failed
rm: cannot remove `parport0-': Read-only file system
rm: cannot remove `parport1-': Read-only file system
mknod: `parport1-': Read-only file system
makedev parport1 c 99 1 root lp 0660: failed
rm: cannot remove `parport1-': Read-only file system
rm: cannot remove `parport2-': Read-only file system
mknod: `parport2-': Read-only file system
makedev parport2 c 99 2 root lp 0660: failed
rm: cannot remove `parport2-': Read-only file system

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
Package: libsane 1.0.19-21ubuntu2
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
SourcePackage: sane-backends
Uname: Linux 2.6.28-4-generic x86_64

[ceg (ceg)]

seems or seemed to be a general issue with dpkg or udev or something (search bugs with "rm: cannot remove")

[Launchpad Janitor (janitor)]

[Expired for sane-backends (Ubuntu) because there has been no activity for 60 days.]