cannot install on my hdd portable hitachi 500GB

[hentaibakayaro]

Binary package hint: ubiquity

greeting
i'm trying install 9.04 on my hdd portable hitachi 500GB on :
1. mobo asus p5dl2-x
2. IBM xserver x3400 series
3. HP Pavillion g3630l home pc
all had raised an issues that they cannot completely install ubuntu
and in bios all recognized my HDD as 500GB
the error said
[errno 30] read only file system :/target/boot/vmlinuz 2.6.28-11-generic
i've tried to check with gparted and the hdd is fine

regards

ProblemType: Crash
Architecture: i386
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InterpreterPath: /usr/bin/python2.6
MediaBuild: Ubuntu 9.04 "Jaunty Jackalope" - Release i386 (20090420.1)
Package: ubiquity 1.12.12
ProcAttrCurrent: unconfined
ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity gtk_ui
ProcEnviron: Error: [Errno 13] Permission denied: '/proc/19144/environ'
PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
SourcePackage: ubiquity
Title: ubiquity crashed with InstallStepError in configure_user()
Uname: Linux 2.6.28-11-generic i686
UserGroups: