mercoledì 10 ottobre 2012

Vmware Guest mount USB external Disk


USB can be used by Guest OS by editing the settings of a Virtual Machine and then choosing the "Hardware" TAB Once you are at the HARDWARE Tab you can click "ADD" and select a USB Controller.
Once you have added a USB Controller you then repeat the same process, except this tieme add a USB Device instead of a controller.

You will see any attached USB devices in a list to choose from.

Once added you then need to open the console of the Virtual Machine, and Mount it to the USB connector. (the little USB icon at the top of the Console Window).

Login the windows system and it should find the disk automaticaly.

lunedì 8 ottobre 2012

Linux partitioning with fdisk

I start fdisk from the shell prompt:
# fdisk /dev/hdb 
which indicates that I am using the second drive on my IDE controller. (See Section 2.1.) When I print the (empty) partition table, I just get configuration information.
Command (m for help): p

Disk /dev/hdb: 64 heads, 63 sectors, 621 cylinders
Units = cylinders of 4032 * 512 bytes
I knew that I had a 1.2Gb drive, but now I really know: 64 * 63 * 512 * 621 = 1281982464 bytes. I decide to reserve 128Mb of that space for swap, leaving 1153982464. If I use one of my primary partitions for swap, that means I have three left for ext2 partitions. Divided equally, that makes for 384Mb per partition. Now I get to work.
Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-621, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-621, default 621): +384M
Next, I set up the partition I want to use for swap:
Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 2
First cylinder (197-621, default 197):
Using default value 197
Last cylinder or +size or +sizeM or +sizeK (197-621, default 621): +128M
Now the partition table looks like this:
   Device Boot    Start       End    Blocks   Id  System
/dev/hdb1             1       196    395104   83  Linux
/dev/hdb2           197       262    133056   83  Linux
I set up the remaining two partitions the same way I did the first. Finally, I make the first partition bootable:
Command (m for help): a
Partition number (1-4): 1
And I make the second partition of type swap:
Command (m for help): t
Partition number (1-4): 2
Hex code (type L to list codes): 82
Changed system type of partition 2 to 82 (Linux swap)      
Command (m for help): p
The end result:
Disk /dev/hdb: 64 heads, 63 sectors, 621 cylinders
Units = cylinders of 4032 * 512 bytes
 
   Device Boot    Start       End    Blocks   Id  System
/dev/hdb1   *         1       196    395104+  83  Linux
/dev/hdb2           197       262    133056   82  Linux swap
/dev/hdb3           263       458    395136   83  Linux
/dev/hdb4           459       621    328608   83  Linux          
Finally, I issue the write command (w) to write the table on the disk.
to format disk:

mkfs.ext3 (for ext3 file system)
mkfs.ext4 (for ext4 file system)
mkfs.swap (for swap file system)