Yesterday,I download the BT5-KDE-32.iso.
The I Burn it to a DVD,I boot and install it.But at the 8 step I got the problem:
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Installer crashed

we're sorry;the installer crashed.Please file a new bug report......
.....

Traceback (most recent call last):
File "usr/lib/ubiquity/bin/ubiquity",line 524, in <module>
man(oem_config)
File "usr/lib/ubiquity/bin/ubiquity",line 511, in main
install(query=options.query)
File "usr/lib/ubiquity/bin/ubiquity",line 242, in install
ret = wizard.run()
File "usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py",line 513, in run
self.progress_step()
File "usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py",line 1179, in progress_step
self.progress_loop()
File "usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py",line 1062, in progress_loop
(ret,realtb)
RuntimeError:Install failed with exit code 1
Trackback (most recent call last):
File "usr/share/ubiquity/install.py", line 2556 in <module>
install.run()
File "usr/share/ubiquity/install.py", line 353 in run
self.copy_all()
File "usr/share/ubiquity/install.py", line 685 in copy_all
assert os.path.exists(fs_size),"Missing filesystem.size."
AssertionError:Missing filesystem.size.