topic Re: root,boot,var in Operating System - HP-UX

root,boot,var

newunix — Sun, 24 Oct 2010 15:24:25 GMT

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

so what root lvol and opt used for.

Re: root,boot,var

James R. Ferguson — Sun, 24 Oct 2010 15:57:31 GMT

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...

Re: root,boot,var

vishnu.khandare — Sun, 24 Oct 2010 16:05:41 GMT

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

Re: root,boot,var

SoorajCleris — Mon, 25 Oct 2010 04:45:28 GMT

Hi,

Please go through,

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

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

Regards,
Sooraj

Re: root,boot,var

Ismail Azad — Wed, 10 Nov 2010 15:57:27 GMT

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).

Re: root,boot,var

Torsten. — Wed, 10 Nov 2010 21:03:27 GMT

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.