cancel
Showing results for 
Search instead for 
Did you mean: 

root,boot,var

newunix
Frequent Advisor

root,boot,var

boot lv --- contains boot configuration to boot up the system

so what root lvol and opt used for.
5 REPLIES
James R. Ferguson
Acclaimed Contributor

Re: root,boot,var

Hi:

The '/' mountpoint (the "root") contains subordinate directories like '/etc' and '/sbin'. Together these provide configuration scripts and data and commands that are intended for system maintenance in single-user mode when filesystems like '/usr' and '/opt' aren't mounted.

The '/opt' filesystem is for "optional" products. I prefer the term "additional" rather than "optional". The contents of '/opt' extend (add to) the core UNIX software found in '/usr'. In '/opt' you will find things like Perl, aCC, glance, etc.

See 'heir(5)' for more information:

http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c02255645/c02255645.pdf

Regards!

...JRF...
vishnu.khandare
Respected Contributor

Re: root,boot,var

Hi,

/ Root is the mother of all mount points
and /opt is OS mount point where all the Additional Software which u install lands

Please check the below links,

http://www.operating-system.org/betriebssystem/_english/bs-hpux.htm

http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1287938943017+28353475&threadId=1439694

Hope this solves ur query.
Dont forget to assign points.

Regards
Vishnu Khandare
You should deserve before U desire!!!!
SoorajCleris
Honored Contributor

Re: root,boot,var

Hi,

Please go through,

http://en.wikipedia.org/wiki/Filesystem_Hierarchy_Standard

http://en.wikipedia.org/wiki/Filesystem_Hierarchy_Standard

Regards,
Sooraj
"UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity" - Dennis Ritchie
Ismail Azad
Esteemed Contributor

Re: root,boot,var

Root logical volume is typically /dev/vg00/lvol3 which is present on the boot disk structure and typically contains configuration files and commands which are in /etc and /opt. Opt consists of applications. When you talk about the boot area typically on PA-RISC we refer to the LIF area which consists of ISL, AUTO and HPUX utility and sometimes the pointers to these have to be updated when some maintenance is being done with the help of the command lvlnboot. Lvlnboot also allows us to see the contents of the Boot Data Reserved Area (BDRA).
Read, read and read... Then read again until you read "between the lines".....
Torsten.
Acclaimed Contributor

Re: root,boot,var

As said before, "root" of the file system is just "root" - where everything else starts in the directory tree.

The boot volume is where the kernel is, but boot information is also in a reserved area at the beginning of the disk.

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
No support by private messages. Please ask the forum!

If you feel this was helpful please click the KUDOS! thumb below!