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ubuntu@ubuntu:~$ sudo sudo fdisk /l

fdisk: unable to open /l: No such file or directory

ubuntu@ubuntu:~$ sudo fdisk /l

fdisk: unable to open /l: No such file or directory

ubuntu@ubuntu:~$ sudo fdisk -l

 

Disk /dev/sda: 160.0 GB, 160041885696 bytes

255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x0001d05b

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *          63    51202047    25600992+   c  W95 FAT32 (LBA)

/dev/sda2        51202048   102402047    25600000   83  Linux

/dev/sda3       102402048   312580095   105089024    5  Extended

/dev/sda5       102404096   306419711   102007808    7  HPFS/NTFS/exFAT

/dev/sda6       306421760   312580095     3079168   82  Linux swap / Solaris

ubuntu@ubuntu:~$ sudo mount /dev/sda2

mount: can't find /dev/sda2 in /etc/fstab or /etc/mtab

ubuntu@ubuntu:~$ sudo mount /dev/sda2 mnt

mount: mount point mnt does not exist

ubuntu@ubuntu:~$ sudo mount /dev/sda1 mnt

mount: mount point mnt does not exist

ubuntu@ubuntu:~$ sudo mount /dev/sda1 /mnt

ubuntu@ubuntu:~$ sudo mount -- bind /dev /mnt/dev

Usage: mount -V                 : print version

       mount -h                 : print this help

       mount                    : list mounted filesystems

       mount -l                 : idem, including volume labels

So far the informational part. Next the mounting.

The command is `mount [-t fstype] something somewhere'.

Details found in /etc/fstab may be omitted.

       mount -a [-t|-O] ...     : mount all stuff from /etc/fstab

       mount device             : mount device at the known place

       mount directory          : mount known device here

       mount -t type dev dir    : ordinary mount command

Note that one does not really mount a device, one mounts

a filesystem (of the given type) found on the device.

One can also mount an already visible directory tree elsewhere:

       mount --bind olddir newdir

or move a subtree:

       mount --move olddir newdir

One can change the type of mount containing the directory dir:

       mount --make-shared dir

       mount --make-slave dir

       mount --make-private dir

       mount --make-unbindable dir

One can change the type of all the mounts in a mount subtree

containing the directory dir:

       mount --make-rshared dir

       mount --make-rslave dir

       mount --make-rprivate dir

       mount --make-runbindable dir

A device can be given by name, say /dev/hda1 or /dev/cdrom,

or by label, using  -L label  or by uuid, using  -U uuid .

Other options: [-nfFrsvw] [-o options] [-p passwdfd].

For many more details, say  man 8 mount .

ubuntu@ubuntu:~$ sudo mount --bind /proc /mnt/proc

mount: mount point /mnt/proc does not exist

ubuntu@ubuntu:~$ sudo mount --bind /proc/mnt/proc

mount: can't find /proc/mnt/proc in /etc/fstab or /etc/mtab

ubuntu@ubuntu:~$ sudo mount --bind /proc /mnt/proc

mount: mount point /mnt/proc does not exist

ubuntu@ubuntu:~$ sudo mount /dev/sda2 mnt

mount: mount point mnt does not exist

ubuntu@ubuntu:~$ sudo mount /dev/sda2 /mnt

ubuntu@ubuntu:~$ sudo mount --bind /proc /mnt/proc

ubuntu@ubuntu:~$ sudo mount --bind /sys /mnt/sys

ubuntu@ubuntu:~$ sudo chroot /mnt

root@ubuntu:/# grub-install /dev/sda

/usr/sbin/grub-probe: error: cannot find a device for /boot/grub (is /dev mounted?).

root@ubuntu:/# mount /dev/sda2 /boot

mount: special device /dev/sda2 does not exist

root@ubuntu:/# grub-install /dev/sda2

/usr/sbin/grub-probe: error: cannot find a device for /boot/grub (is /dev mounted?).

root@ubuntu:/#