symbol lookup error: mkfs.ext3: undefined symbol: ext2fs_add_journal_inode2

while formatting a newly added disk to my ubuntu server I got this error.

symbol lookup error: mkfs.ext3: undefined symbol: ext2fs_add_journal_inode2

don’t worry too much if your situation is similar like mine then its easily fixable. after googling alot I got some hints that this is due to DELL APP ASSURE AGENT installed on ubuntu server.  Yes I have dell appassure agent “appassure-installer_ubuntu_amd64_5.4.2.192”
quick fix to resolve disk format issue is to Remove dell appassure agent , Reboot Server, Format your disk and mount etc as normal  , then install dell appassure agent to carry on backing up your server.

ok to un-install Dell appassure agent we need same version .sh  file which can be download from dell site as i allready have this on my server so Uninstall command is as below

./ -u

hit y  for yes to carry on un-installing agent and once finished just reboot the server.

once back on ,  I can now format my newly added disk without any issues.

root@ubuntus1:~# sudo mkfs -t ext3 /dev/sdc1
mke2fs 1.42.9 (4-Feb-2014)
Discarding device blocks: done
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
655360 inodes, 2621184 blocks
131059 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2684354560
80 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632

Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

and can mount new drive and start using as normal and install Dell AppAssure Agent on server .


hope this will help someone who using dell appassure on same server.


Harjeet Singh

Ubuntu Server Add new Hard Drive

at some point servers do need storage expansion, I got this ubuntu server 14:04 running on Hyper V,  and as it was running out of space so here is this how to about Ubuntu Server add new hard drive.

Lets start with listing/getting information about drives attached to server.

sudo lshw -C disk

this will present you with information about current or newly attached drives. as below

description: SCSI Disk
physical id: 0.0.0
bus info: scsi@0:0.0.0
logical name: /dev/sda
size: 50GiB (53GB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: guid=fb9fc69a-9620-40e7-b1af-86d5e32c56b0 sectorsize=4096
description: SCSI Disk
physical id: 0.0.2
bus info: scsi@0:0.0.2
logical name: /dev/sdb
size: 20GiB (21GB)
capabilities: partitioned partitioned:dos
configuration: sectorsize=4096 signature=078fcf65
description: SCSI CD-ROM
physical id: 0.0.1
bus info: scsi@0:0.0.1
logical name: /dev/cdrom
logical name: /dev/sr0
capabilities: audio
configuration: status=ready
description: SCSI Disk
physical id: 0.0.3
bus info: scsi@0:0.0.3
logical name: /dev/sdc
size: 10GiB (10GB)
configuration: sectorsize=4096

now we can see all disks and newly add disk here is *-disk2,  NOTE DOWN logical name : /dev/sdc

so its “sdc” disk that I need to add to server.

Lets partition the disk using below cmd

sudo fdisk /dev/sdc

type m for further information on FDISK usage

root@ubuntus1:~# sudo fdisk /dev/sdc
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0xb9e19996.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won’t be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

The device presents a logical sector size that is smaller than
the physical sector size. Aligning to a physical sector (or optimal
I/O) size boundary is recommended, or performance may be impacted.

Command (m for help): m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the DOS compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition’s system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)

Command (m for help):


type  n   to create new partition.

I will use primary  so type p  for primary. and just hit ENTER for next 2 prompts about number and size  as i want to just have single partition using all size. so start and finish point keep default.

Finally type w  and hit enter to write information about partitioning. and this will come out of FDISK menu.

After creating single partition next we will need to format the partition ,  I will be using EXT3  , commands for EXT3 and EXT4 are same.   so its SDC1  we are going to format.

sudo mkfs -t ext3 /dev/sdc1

Now if all goes good this should format the disk and ready for mount.  But I had little issue here due to reason that I allready had DELL APP ASSURE agent installed and i got this error.
Creating journal (32768 blocks): mkfs.ext3: symbol lookup error: mkfs.ext3: undefined symbol: ext2fs_add_journal_inode2,  if you don’t have DELL APPASSURE Agent installed format should finish fine for you as normal .

Next step is to create mount point and mount the newly formatted drive and add info for automatically boot on startup

lets create mount point i will go upto top level by cd .. , cd ..   just to ensure not creating new dir at wrong place.

mkdir data2

now edit fstab to add mount point informaiton

vi /etc/fstab

and add below line to end of file

/dev/sdc1    /data2   ext3    defaults     0        2

save/quit your editor. make sure you use device information and mount point name etc according to your server

sudo mount -a  

this will mount drive. also it will be mounted on start up etc.

just to confirm use “df -h” to display drives information
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 48G 8.7G 37G 20% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 482M 4.0K 482M 1% /dev
tmpfs 99M 252K 99M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 493M 0 493M 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/sda1 511M 3.4M 508M 1% /boot/efi
/dev/sdb1 20G 45M 19G 1% /media/cryodata1
/dev/sdc1 9.8G 23M 9.2G 1% /data2


as we can see last line shows us /dev/sdc1  is mounted on /data2

hope this will help someone.


Harjeet Singh

Ubuntu Server Move HDD to new Box Network Adaptor missing

I came across this issue today, got  Ubuntu Server 12.04 LTS running on a DELL PC OptiPlex 380 box. for some reason I had to move this to a new similar DELL PC. now I took sata HDD out from existing PC and installed this to new PC.

having thought that hardware is exactly same so I won’t have any issue. but after starting up found out that Networking is not working at all,
ifconfig  shows me only one local adaptor .

ok not to worry here is fix : how to fix missing network adaptor after moving Ubuntu server HDD from one box to another.

Edit “70-persistent-net.rules” files using VI or your faveroute editor.

vi /etc/udev/rules.d/70-persistent-net.rules

and look for similar lines as below , at bottom.  starting with SUBSYSTEM. you might have only one line but for some reason my file had two such lines.

# PCI device 0x8086:0x1004 (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="0a:00:25:c1:b3:eb", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

Delete these lines that start with SUBSYSTEM  or simply comment out #SUBSYSTEM and so on.

save file and exit your editor.  for vi its ESC  then type “:wq”

reboot system. and now it should just work as normal.
hope this will help someone.

Harjeet Singh



Windows7-SysPrep Audit Mode could not complete the installation

I have seen this msg when windows 7 boots after SysPreped using Audit Mode.

“Windows could not complete the installation. To install Windows on this computer, restart the installation”

having googled around below is fix that worked fine for me.

When prompted with error unable to complete installation:
Hit SHIFT-F10 to bring up command prompt.

type MMC
Click File -> Add/Remove Snap-in… (Or CTRL+M)
Select Computer Management (Double click and Finish on Local Computer)
Click OK
Double click Computer Management (Local) -> System Tools -> Local Users and Groups -> Users -> Double Click Administrator -> Uncheck Account is disabled -> OK
if it gives you error about password. then first SET A Password , then Uncheck this button.
Now right click Administrator -> Set Password…  ->  Set a decent password to get started.

Close all these windows without saving settings to MMC.  hit OK to that msg it will restart or use just reboot anyhow.

after restart.  Should boot up fine and prompt saying password incorrect as it tries to login with inbuilt account, you just need to login with defined password.

hope this will help someone

Harjeet Singh