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opensolaris interview questions

Top opensolaris frequently asked interview questions

Relation between Opensolaris source and Solaris releases

The source code available for OpenSolaris is very useful for finding out about the internals of Solaris (together with dtrace and mdb). However, as far as I know there is no way of finding out exactly how the OpenSolaris source code relates to the binaries released as formal update releases of Solaris. I.e. which versions of the source files were compiled to form for example Solaris 10 Update 6 (10/08)?

You may draw some conclusions by looking at change dates, the history comments and bug tickets. And I know that there isn't a 1:1 relation between OpenSolaris and Solaris. But are there any better ways that I havent thought of?


Source: (StackOverflow)

What are some of the major pro/con of FreeBSD vs GNU Linux vs OpenSolaris?

What are some of the major pro/con of FreeBSD vs GNU Linux vs OpenSolaris?

Which is the best operating system to program/develop against?


Source: (StackOverflow)

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How to convert a time format to seconds in solaris

I have a time of format 2013-04-29 08:17:58 and I need to convert it into seconds.

In UNIX, we can use date +%s. Is there anyway to do it in Solaris?


Source: (StackOverflow)

wheel group in OpenSolaris

What is the equivalent of 'wheel' group in OpenSolaris/OpenIndiana? I used to add a user in the wheel group and permit the group to execute commands via sudo without password asked. I want to do the same in OpenSolaris/Indiana.

I see 'staff' group having the same gid in OpenSolaris, as wheel in Linux for example (Fedora or CentOS).


Source: (StackOverflow)

How to get Xorg to work well with Intel Q35 on OpenSolaris?

OpenSolaris doesn't seem to support the Intel 82Q35 chipset. This is translated into slow Xorg whose performance degrades with time and is not usable at all even doing a ls on a fullscreen gnome console terminal.

I notice that a huge amount of memory (>400Mb) is used by Xorg process and gnome (>100Mb per gnome app). Once I switched to vesa it all become more reasonable Xorg (90Mb). But sometimes with more GUI intensive apps the UI becomes slow.

Is there any alternatives to make it more responsive?


Source: (StackOverflow)

Make doesn't work for Erlang 5.7.4 on Solaris?

Has anyone managed to build Erlang on OpenSolaris? Every time I try I get:

user@opensolaris:~/otp_src_R13B03# make clean make: Fatal error in reader: Makefile, line 94: Badly formed macro assignment


Source: (StackOverflow)

How to access solaris 10 gui from windows machine? [closed]

I want to access solaris 10 GUI screen from my windows xp machine. Is there any software which can provide this flexibility ?

Thanks,


Source: (StackOverflow)

Are there dtrace ustack() helpers on Mac OS X?

I've been wondering if there is any chance to use dtrace ustack helpers on Mac OS X for python and other interpreted languages? I know that you can figure out what python and php on OpenSolaris are doing when giving the ustack some extra memory for a buffer. Is this somehow possible on Mac OS X?

Regards raichoo


Source: (StackOverflow)

I am a long time Ubuntu Linux user (a developer), what are the benefits of using Open Solaris

I am a web developer (J2EE application developer) and just want to expand what tools I use. I want to use Open Solaris for my personal projects. I have nothing against Linux and It looks like a lot of the same tools are on both systems.

Have you jumped to Solaris, was it a good experience?


Source: (StackOverflow)

open solaris code vs solaris code

How compatible is code written under Solaris with Open Solaris ? I would be interested specifically in some kernel modules .


Source: (StackOverflow)

Bash - iterate over a union of two (disjoint) arrays

I am writing a bash script (for an Open Solaris 11 machine).

I have declared two arrays in the following way:

rpool_fs=(
  "rpool"
  "rpool/ROOT"
  "rpool/ROOT/solaris"
  "rpool/export"
);

shares_fs=(
  "shares"
  "shares/svn"
);

I am able to iterate over the rpool_fs array in the following way:

for i in "${rpool_fs[@]}"
do
  echo $i
done

I would now need to iterate over the union of the rpool_fs and shares_fs arrays. Note that the arrays are disjoint, e.g. I do in fact only need to iterate over a concatention of them. How do I do that?


Source: (StackOverflow)

Solaris (SPARC) development environment

I'm working on a cross-platform application for which I would like to include Solaris/SPARC support but I no longer have access to a server. I have an OpenSolaris VM on VirtualBox but I don't know of any SPARC VM which I could use to compile and test on. Did I miss something? Otherwise, do you know of solaris/SPARC shell account services with the gcc toolchain, preferably free ones?


Source: (StackOverflow)

Nexenta Solaris starting

I have installed Nexanta Solaris with VMWare, but it boots to command line. Any idea how to bring up the GUI?


Source: (StackOverflow)

/proc/net/tcp Alternative Under Solaris 11

On Most Linux Distributions, i was able to list all tcp connections by reading /proc/net/tcp, but this Doesn't exists on solaris, is there a file that i can read tcp connections from on Solaris 11?

thanks.

EDIT: forgot to mention that i'm coding in c.


Source: (StackOverflow)

How to make Cassandra use two disks on ZFS in SmartOS?

I heard that there's a huge improvement when Cassandra can write it's logfiles to one disk, and the SS Tables to another. I have two disks, and if I was running Linux I would mount each in a different path and configure Cassandra to write on those.

What I would like to know is how to do that in ZFS and SmartOS.

I'm a complete newbie in SmartOS, and from what I understood I add the disks to the storage pool, are they then managed as being one ?


Source: (StackOverflow)