Repartion root disk

[umeman]

Admins.

I have an extremely urgent situation I need your help with:

I have inhereted a sun e450 system where the root disk
is 18GB with 2 slices / - 16 gb and /swap 2 gb

/export
/usr
/opt

are all subdirectories of the / partition. How can
resize / partition to be 4 Gb and
/export = 4 GB
/usr = 4 GB
/opt = 4 GB

Thanks
-u-

 

[benjoyner]

So you like walking on thin ice?

I have repartitioned live systems but it is NOT advisable.
The default partitioning does not usually have enough space to allow it.

The cheapest and fastest way follows:

1. Buy a second disk drive and install it.
2. Partition the second drive according to your needs. Be sure to allow the swap partition to be at least twice the size of you physical memory.
3. set up the partitions using the newfs and fsck commands
4. use ufsdump/ufsrestore to copy the data (you can use tar)
5. make the drive bootable.

Here, you are own your own. You can either make the second
drive the boot drive using nvram or simply swap the cables
so the second drive is the primary boot drive.

To do all this magic, I would boot from the Solaris installation CD into it's miniroot.

You must also be familiar with the following commands:
format, newfs, fsck, ufsdump/ufsrestore, mkboot, and of course vi.

NOTE: These are steps, not instructions. Good luck.