Syed Jahanzaib Personal Blog to Share Knowledge !

December 23, 2011

Howto Add Second Harddisk in UBUNTU

Filed under: Linux Related — Tags: , , — Syed Jahanzaib / Pinochio~:) @ 1:36 PM

This Guide iwll show you how to add second harddrive to your Ubuntu box.
(since I was running out of space for my squid cache server, I decided to add new harddrive to add more capacity for cache, therefore I wrote this article, so it may be helpful for any one)

After pluggin in new HDD to ubuntu box,  go into your computer’s BIOS and make sure it is detected there properly.

From ubuntu  command prompt , (root access is must) issue the following command.

fdisk -l
It will show two harddrive,
SDA as your primary harddisk,
SDB as your newly added Secondary Harddisk

As shown in the image below . .

If, on the other hand, there is already data on your new hard drive,(you will see the partitions).

Now we need to create partitions on this newly added harddrive. Issue the following command to execute the FDISK procedure.

fdisk /dev/sdb

Type u‘    & press Enter

To create new partition in new hdd,
Type  ‘n‘    & press Enter

To select partition type as primary,
Type ‘p‘    & press Enter

To select partition number,
Type ‘1‘    & press Enter

To write changes to disk partition,
Finally press ‘w‘    & press Enter

As shown in the image below . .

Now the partition is created , We need to run partprobe to update the kernel with the changes we have made with the following command

partprobe /dev/sdb

Next, we need to format our new hard drive. To do this, enter the following command,

mkfs /dev/sdb -t ext4

and Press  ‘y‘ to Continue

As shown in the image below . .

As now the partition is ready to be used , but we have to first mount it any folder.

Create an folder name 2nd-hdd in /mnt by following command,

mkdir /mnt/2nd-hdd

Allow Permission to make this folder writable for every one.

chmod 777 /mnt/2nd-hdd

As shown in the image below . .

Now mount it by using following command

mount /dev/sdb /mnt/2nd-hdd/

To see its content , issue the following command

ls /mnt/2nd-hdd

Now we need to add the following  entry in /etc/fstab so that this newly added harddrive  mount on every reboot auto, Edit /etc/fstab by following command

nano /etc/fstab

Now add the following line at end.

/dev/sdb /mnt/2nd-hdd auto defaults 0 0

As shown in the image below . .


Now either reboot your ubuntu box or issue the following command to mount new harddrive in /mnt/2nd-hdd

mount -a

To test your new harddrive , try creating any file in /mnt/2nd-hdd by following command

touch /mnt/2nd-hdd/my 2nd hdd

As shown in the image below . .

Regard’s
SYED JAHANZAIB

22 Comments »

  1. Zaib bhai, thanks for such a nice article, it would be nice if you add the optional step to create the link to the folder (e.g. like here you setup the second disk because you were run short of space in your first hard drive due to massively increasing the size of your squid cache folder , so what i guess that you will move that folder in your 2nd hard drive,if you also show that step then i think, it will be help for beginners.)

    Comment by Arbab — December 24, 2011 @ 9:48 PM

    • Well this guide was written just to demonstrate that how you can add new hard drive to your ubuntu box.
      Also it showed you that how you can mount it to any folder. Once its mounted its upto you how you use it.
      Regarding SQUID, I just changed the cache_dir pointing to new hdd mounted int /mnt/2nd-hdd
      Example:

      # Cache goes to 2nd hdd 400 GB space i.e >
      cache_dir ufs /mnt/2nd-hdd 400000 16 256

      Comment by Pinochio~:) — December 25, 2011 @ 9:41 AM

  2. Thanks Zaib bhai, I am sure that this comment as well as the example will the beginners.

    Comment by Arbab — December 25, 2011 @ 9:34 PM

  3. Thanks Zaib bhai, I am sure that this comment as well as the example will HELP the beginners.

    Comment by Arbab — December 26, 2011 @ 10:15 PM

  4. Bro if i want to unmount a drive, kindly tell me how i can do that.

    i unmounted a drive but on each startup my ubuntu asks me for that HDD and tries to mount that

    Thanks

    Comment by Ehsan Elahi Mirza — August 4, 2012 @ 10:12 AM

  5. Thank You very Much Shah Gee 🙂

    Comment by Muhammad Imran Khan — September 2, 2012 @ 7:37 PM

  6. please help me , main ne 3 hd lga k ubuntu install ke hai lakin baki 2 hd auto mount nahi ho rahi …. muje bataoo k ksay ho skti hain..

    Comment by Deeba — September 28, 2012 @ 7:46 AM

    • to auto mount both hdd, you need to add some directives in /etc/fstab
      Read the article at end, there is a section about it.

      Comment by Syed Jahanzaib / Pinochio~:) — September 28, 2012 @ 9:06 AM

  7. As i did it cache_dir ufs /mnt/2nd-hdd 400000 16 256

    root@naeem-desktop:~# squid -z
    2012/09/28 10:50:08| Creating Swap Directories
    FATAL: Failed to make swap directory /mnt/2nd-hdd/00: (13) Permission denied
    Squid Cache (Version 2.7.STABLE7): Terminated abnormally.
    CPU Usage: 0.000 seconds = 0.000 user + 0.000 sys
    Maximum Resident Size: 3616 KB

    plz let me now how to clear it

    Comment by Deeba — September 28, 2012 @ 10:54 AM

    • You have missed some steps of assigning necessary permissions so that squid can write into it.

      create an folder name /cache1 in your new hdd,
      then define cache folder in squid.conf (pointed to 2nd hdd folder)
      then assign permission to this folder

      chown proxy:proxy /mnt/2nd-hdd/cache1
      chmod -R 777 /mnt/2nd-hdd/cache1
      sqiud -z

      (change /cache1 to match your folder)

      Comment by Syed Jahanzaib / Pinochio~:) — September 29, 2012 @ 4:18 PM

  8. As i add it in squid.conf at an other pc but same issue

    cache_dir ufs /mnt/2nd-hdd 400000 16 256

    root@deeba-desktop:~# squid -z
    2012/09/28 10:50:08| Creating Swap Directories
    FATAL: Failed to make swap directory /mnt/2nd-hdd/00: (13) Permission denied
    Squid Cache (Version 2.7.STABLE7): Terminated abnormally.
    CPU Usage: 0.000 seconds = 0.000 user + 0.000 sys
    Maximum Resident Size: 3616 KB

    plz let me know how to clear it

    Comment by Deeba — September 28, 2012 @ 11:19 AM

    • wrong syntax please rewrite to this :: cache_dir aufs /mnt/2nd-hdd 400000 16 256

      Comment by elie — May 20, 2016 @ 7:46 PM

  9. Pls help me, I install ubuntu linux. I have a small problem i added newly hard disk for my server in my client side they create one of a site that site application is already stored in my old hard disk. In my problem is the balance application all are stored in my newly hard disk. what can i do for it.

    Comment by shola — October 27, 2012 @ 2:16 PM

  10. hello to all , i need help for this problem ( cache_dir ufs /mnt/2nd-hdd 400000 16 256

    root@deeba-desktop:~# squid -z
    2012/09/28 10:50:08| Creating Swap Directories
    FATAL: Failed to make swap directory /mnt/2nd-hdd/00: (13) Permission denied
    Squid Cache (Version 2.7.STABLE7): Terminated abnormally.
    CPU Usage: 0.000 seconds = 0.000 user + 0.000 sys
    Maximum Resident Size: 3616 KB )
    Please and Thanks !

    Comment by midothe — August 28, 2013 @ 8:37 PM

    • make sure you have the folder in /mnt/2nd-hdd

      If you are using fedora/centos, then assign permission to /mnt/2nd-hdd/ by using
      chown squid:squid /mnt/2nd-hdd

      or if debian/ubuntu , use this
      chown proxy:proxy /mnt/2nd-hdd

      Comment by Syed Jahanzaib / Pinochio~:) — August 29, 2013 @ 9:15 AM

  11. Jahanzaib bhai agar hum 2nd hard lagaty hain us main cache save hoti hai kisi waja sy ubuntu squid crash ho jata hai toh 2nd hard ki cache kaam a skti hai

    Comment by Zabi — September 15, 2013 @ 9:24 PM

  12. Failed to re-start Squid ..
    FATAL: Bungled squid.conf line 28: cache_dir ufs /mnt/2nd-hdd/ 400000 16 256
    Squid Cache (Version 2.7.STABLE9): Terminated abnormally.

    FACING THIS PROBLEM

    Comment by Mushhood hussain — June 8, 2014 @ 10:48 AM

  13. Assalam o Alaikum,
    jnab,
    plz meri aik problem resolve kar dain apka bohat shukar guzaar ho ga.
    problem ye hai k mene 2 tb ki hard lgai thi squid k liye ab wo full ho gai hai .
    ab mein sirf aik hard nai lagana chahta extra mein chata hu k 1 tb or 1tb ki do hard disk laga du to 2sri hard disk ka ap ne procedure iss artical mein bata diya hai 3sri k liye b same procedure hoga plz .
    thanks in advance.

    Comment by Software Engineer — September 16, 2015 @ 6:27 PM


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