dual boot install "mount points could not be unmounted"

Asked by joshMigration on 2007-12-21

In my first ever install of linux (xubuntu), I'm getting this when I do the guided partition process:

"installer needs to commit changes to partition tables, but cannot do so because partitions on the following mount points could not be unmounted: /media/Part\040Two "

I'm trying to install xubuntu alongside XP, and I've got plenty of disc space. ideas?

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Bert Van de Poel (bhack) said :

try calling sudo umount -a in a terminal window (applications -> accesories -> terminal or something like that) before starting the installer.

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joshMigration (josh-chaffin) said :

are you saying i should enter "sudo unmount -a" in the terminal window? is this any threat to my XP install?

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Olivier (olivier-lacroix) said :

Not a threat at all. But what is a threat is resizing your XP partition, which is going to happen. before proceeding, you should backup your data. There is a very little risk of loosing data, but it exists

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