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I reformatted my Win "C" drive and loaded Ubuntu 11.04. The second internal HD of course is not read. It is shown in 'disk utility'. I try to mount it in disk utility but I get an error message

error mounting: mount exited with exit code 1: helper failed with:
mount: according to mtab, /dev/sda1 is already mounted on /

One problem I see is the error relates to sda1, but I am trying to mount sdb.

Unfortunately, I am windows literate and ignorant of the coding for linux.

Can someone help me with the code to mount my second drive (sdb)


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Before you can mount a disk, you need to have a mountpoint (which is a directory). The general command for mounting a partition is:

sudo mount /dev/sdb1 /mnt

Here, /dev/sdb1 is the first (1) partition on the second disk (b). If the command was succesful, the filesystem wil be available at /mnt. Only the superuser can mount new filesystems, therefore sudo is prepended on the command. If you're mounting multiple partitions, you might want to create a folder before use:

sudo mkdir /media/mountp
sudo mount /dev/sdb1 /media/mountp

Do not forget to remove the directory after unmounting it:

sudo umount /media/mountp
sudo rmdir /media/mountp
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I used the command....sudo mount /dev/sdb1 /mnt.....I (enter) and I am prompted for my password. After the password (I know it doesn't show on the screen) nothing has changed. The drive does not show in (computer). I reboot and still no show. – Nathan Jul 1 '11 at 18:33
@Nathan it doesn't show in (computer) because you didn't mount it in a directory under /media. Look in /mnt and your files should be there. – psusi Jul 1 '11 at 19:25
Forgive me, but I don't know how to do that. – Nathan Jul 1 '11 at 21:21
ls /mnt shows the contents of the /mnt folder. If you are not familiar with the command line, I suggest you to mount the directory through a file manager like Nautilus (or open the disk by opening Places) – Lekensteyn Jul 1 '11 at 21:26

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