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Full Discussion: How to partition your disk?
Operating Systems Linux Red Hat How to partition your disk? Post 302774579 by bakunin on Saturday 2nd of March 2013 12:36:35 PM
Old 03-02-2013
First off: whatever your translation engine is, please switch to another one. I have a hard time second-guessing what you might mean.

Before you begin: PLAN, PLAN, PLAN, then plan again. Write down which application you are going to install, how much space you need for the binaries, how much for the data itself, etc..

Always keep in mind that it is easy to increase the size of a filesystem but hard to make it smaller. Therefore, start out with as little space as possible and increase this to the size necessary.

What you need:

1. Boot partition Linux cannot boot from a logical volume, so you need a boot partition to boot from. It should be formatted as "ext3" filesystem and can be very small: 512MB is absolutely enough.

2. The rest of the disk goes to one volume group. If i am correct the RedHat installation process will guide you through the creation of the volume group, so just follow the dialog.

3. Within the volume group all the other filesystems will be created as logical volumes. You will need:

3A. a swap area: make it the same size as your installed memory. More is not better, just a waste.

3B. a "/" filesystem (ext3 or ext4) for the system itself. 5GB are more than enough, you can make it bigger later if this is necessary.

3C. a "/tmp" filesystem (ext3 or ext4) for temporary files. Start with 1GB and increase as necessary.

3D. a "/opt" filesystem (ext3 or ext4) for the application (binaries). Start with what you have found out the application needs, NOT MORE. Increase if it is too small, but only then.

3E. You mentioned DB2, so you probably need some space for the database itself. Talk to the application people where to mount they want it mounted and how much space you have to provide for this. I suggest you leave that out during installation and create it later, as you don't need it to install the system.

3F. It might be a good idea to have a small filesystem for "/home", so that users can put some scripts in their home directories without taxing the "/" filesystem. You might also consider "/root" to be its own filesystem, because you might need some space for logs, administrative scripts, etc.. Start with 5GB in both cases and increase as necessary.

I hope this helps.

bakunin
 

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LEARN ABOUT NETBSD

mbrlabel

MBRLABEL(8)						    BSD System Manager's Manual 					       MBRLABEL(8)

NAME

     mbrlabel -- update disk label from MBR label(s)

SYNOPSIS

     mbrlabel [-fqrw] [-s sector] device

DESCRIPTION

     mbrlabel is used to update a NetBSD disk label from the Master Boot Record (MBR) label(s) found on disks that were previously used on
     DOS/Windows systems (or other MBR using systems).

     mbrlabel scans the MBR contained in the very first block of the disk (or the block specified through the -s flag), then walks through every
     extended partition found and generates additional partition entries for the disk from the MBRs found in those extended partitions.

     Each MBR partition which does not have an equivalent partition in the disk label (equivalent in having the same size and offset) is added to
     the first free partition slot in the disk label.  A free partition slot is defined as one with an fstype of 'unused' and a size of zero
     ('0').  If there are not enough free slots in the disk label, a warning will be issued.

     The raw partition (typically partition c, but d on i386 and some other platforms) is left alone during this process.

     By default, the proposed changed disk label will be displayed and no disk label update will occur.

     Available options:

     -f 	Force an update, even if there has been no change.

     -q 	Performs operations in a quiet fashion.

     -r 	In conjunction with -w, also update the on-disk label.

     -s sector	Specifies the logical sector number that has to be read from the disk in order to find the MBR.  Useful if the disk has remapping
		drivers on it and the MBR is located in a non-standard place.  Defaults to 0.

     -w 	Update the in-core label if it has been changed.  See also -r.

SEE ALSO

     disklabel(8), dkctl(8), fdisk(8), mbr(8)

HISTORY

     The mbrlabel command appeared in NetBSD 1.4.

BSD
								   April 5, 2010							       BSD
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