Gettr while upgrading the Ubuntu

[imsaditya]

$ sudo apt-get install gawk wget git-core diffstat unzip build-essential chrpath libsdl1.2-dev xterm curl
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package gawk is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

Package build-essential is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'gawk' has no installation candidate
E: Package 'build-essential' has no installation candidate
E: Unable to locate package chrpath

===
Could you please help me to install

[robertferanec]

What filesystem you are using? Maybe this can help: http://www.imx6rex.com/open-rex/soft...system/#copied

[imsaditya]

Hi i am using virtualbox version 5.1.28 . the Host system is Windows 7. After installation of Virtualbox when i am trying to upgarde the system as given in the imx6rex website. link is "http://www.imx6rex.com/open-rex/software/how-to-prepare-host-machine-for-yocto/" i am getting error after giving the 4th command from the top.

[imsaditya]

while trying the command : sudo apt-get update

got the following message at the end.

Get:42 http://in.archive.ubuntu.com trusty/main Sources [1,064 kB]
Fetched 7,887 kB in 23s (340 kB/s)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/...trusty/Release Unable to find expected entry 'restricted/source/Sources' in Release file (Wrong sources.list entry or malformed file)

W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/...source/Sources Hash Sum mismatch

E: Some index files failed to download. They have been ignored, or old ones used instead.
[email protected]:~$


== Please suggest

[robertferanec]

I am not really sure, looks like you may have something different. Try google - looks like there may be problem with your sources.list