ubuntu7.10下找不到xp分区

求教，如题。我是SATA硬盘，Ubuntu安装在倒数第二个分区，最后一个是交换分区。现在/dev下没有sda1,sda2之类的文件（夹），/media下有，但是打开没有任何内容。因为/dev下没有，也就不能挂载。用mount -a挂载全部，显示
$LogFile indicates unclean shutdown (0, 1)
Failed to mount '/dev/sda1': Operation not supported
Mount is denied because NTFS is marked to be in use. Choose one action:

Choice 1: If you have Windows then disconnect the external devices by
clicking on the 'Safely Remove Hardware' icon in the Windows
taskbar then shutdown Windows cleanly.

Choice 2: If you don't have Windows then you can use the 'force' option for
your own responsibility. For example type on the command line:

mount -t ntfs-3g /dev/sda1 /media/sda1 -o force

Or add the option to the relevant row in the /etc/fstab file:

/dev/sda1 /media/sda1 ntfs-3g defaults,force 0 0
$LogFile indicates unclean shutdown (0, 0)
Failed to mount '/dev/sda2': Operation not supported
Mount is denied because NTFS is marked to be in use. Choose one action:

Choice 1: If you have Windows then disconnect the external devices by
clicking on the 'Safely Remove Hardware' icon in the Windows
taskbar then shutdown Windows cleanly.

Choice 2: If you don't have Windows then you can use the 'force' option for
your own responsibility. For example type on the command line:

mount -t ntfs-3g /dev/sda2 /media/sda2 -o force

Or add the option to the relevant row in the /etc/fstab file:

/dev/sda2 /media/sda2 ntfs-3g defaults,force 0 0
$LogFile indicates unclean shutdown (0, 0)
Failed to mount '/dev/sda5': Operation not supported
Mount is denied because NTFS is marked to be in use. Choose one action:

Choice 1: If you have Windows then disconnect the external devices by
clicking on the 'Safely Remove Hardware' icon in the Windows
taskbar then shutdown Windows cleanly.

Choice 2: If you don't have Windows then you can use the 'force' option for
your own responsibility. For example type on the command line:

mount -t ntfs-3g /dev/sda5 /media/sda5 -o force

Or add the option to the relevant row in the /etc/fstab file:

/dev/sda5 /media/sda5 ntfs-3g defaults,force 0 0
现在在ubuntu下看不到任何xp分区，请高手帮忙，谢谢！