Session 2 (init levels)

This Section which Deals about init level

Love Solaris ……

/etc/init.d/…..            Script file which contains all init levels

Init levels :

Have Seen the SPARC machine (Really an Un believable Performance )

SPARC machine which has super concept called Ok Prompt

with out booting to Os we can able to control some of Admin activity…which really admire me……

ok>  boot –S

Ok prompt not available in Intel X86 machine…

while working in SPARC Machine an special type of keyboard with extra 16 keys …Specially designed

Stop + A    ——->which enter into ok prompt with Single User Mode…….

Mostly the key disable while running in SPARC machine For Security reasons ….

To Disable :

bash>kbd –a disable

where

kbd——>keyboard Input Devices

Disable and Enable  are options….

(BOTH FOR SPARC AND INTEL X86)

SPARC-Scalable Processor architecture    (RISC)

init 0——————>      Hardware Maintenance Mode…….  (Any hardware changes all are hot plug able devices)

init 1——————>      Single User Mode

init 2——————>      Multiuser Mode(without  NFS file system)

init 3——————>      Multiuser Mode (with NFS File system)

init 4——————>       N/A   (Feature use)

init 5—————–>        Shutdown the machine..

init 6——————>       Reboot the machine..

init S——————>      All Administrative Repairs with highly Admin commands

by

Solaris Lover …

Session 1

First Steps TO Learn Solaris Commands

This is my first blog to share my ideas and method of learning.I hope it could be useful and share your thought…

Have an nice moment for Every Second

In these Section we discusses about Soft Link & Hard Link

* link means to linking some thing (or) relationship

* changes made in one file it reflects in another file.

* Two types normally

1.Soft link —————–> Different Inode  Number.   .eg   Inode  (30021) any number depending upon the system maping

2.Hard link—————>Same Inode .

Command Need to Look Up:

ls—–> list all the parameters include user,type of file,permission,Inode………

ls -lia—-> list in detail

ln—–>link

usage:

Soft link:

bash> ln -s  < old file>  <new file>

-s      denotes soft link

<old file> already present file

<new file> point to new file right now create by u.

Example :

bash> ln -s  first     second

* If the first file is deleted second file also deleted by OS it self.

Hard link:

bash> ln  first second

*if the first file is deleted the second file not deleted …..

I hope useful ……

and work side by  side…

Solaris Lover