Re: [CAD_CAM_EDM_DRO] Re: EMC Real Time Linux installation

Ray Henry wrote:

> I received a prompt read and reply from Doug and want to include one of his
> comments here because it might affect the way you decide to install rtlinux.
>
> -----Doug quote-----
> You wrote:
> "I let mandrake set up the disk partitions but renamed the smaller one (/)
> and the bigger
> one (/usr)."
>
> Usually (in unix) in that instance, you would use /home for the bigger
> partition.
> Since all the users files are in /home/<username> you can then do a system
> re-install (ie updating the OS) without touching /home and leave all of the
> users files intact. However, it is obviously a good idea to have a backup
> of /home - just in case!
> -----
>
> He is correct, of course. I was thinking of a very specialized use when I
> did the install.
>
> Ray

Of course there is nothing stopping you (during the Mandrake GUI disk
partitioning phase) from making both a "/usr" and "/home" of appropriate
sizes (however, this fixes the sizes of those partions and you might
undesirably run out of space in the partition whilst still having lots of
space on the disk).

For that reason, I personally prefer (assuming just one disk drive) 3 partitions:
- swap (required, say 8 to 128 MB range)
- /boot (the boot sector has to be in the 1st Gigabyte on the disk -make this
16 to 32 MB)
- / (the rest of the system - this way maximizes the usage of the disk IMHO).

This would also apply to any other Linux installation (RedHat, etc).

Doug Fortune