Partition confusion

[jb]

Knowing why is so much better than blindly following what the books say.
I'm going to be setting up my other computer for dual boot fairly soon
and I'll be using the partition info I've gathered on this machine for
the other and it is good to know having a /boot partition is the way to
go.
I also have a question about what a fully qualified Host Name is. Is it
when you own a domain and your running a server for that domain? I own a
domain name but since I'm on dialup I let yahoo host it. So I assume
that isn't a fully qualified Host Name. In that case I should just be
naming my computer something besides Localhost but not @ something?

On Mon, 2003-11-10 at 13:25, Dave Andruczyk wrote:
> --- jb <mesimpleton at yahoo.com> wrote:
> > I'm just curious about not having a /boot partition. All the info I have
> > says you need to make one, but one reference says it is a recommended
> > partition. That leads me to believe there may be other ways. This
> > appears to be the other way? If someone could touch on the subject I
> > would appreciate it. When I made my /boot partition, I tried 50 meg and
> > RedHat install complained and said it had to be at least 75 meg?
> > Thanks,
> > JB
> 
> LAst message got sent premature..
> 
> /boot is recommended primarily to keep the kernel SEPARATE from the /
> filesystem. (/boot is recommended to be mounted Read only to avoid corruption
> if you crash your box, just remount as ReadWrite when you update your kernel)
> This way if you accidentally run "rm -rf * from "/" you won't erase your
> kernel.
> 
> Another reason to use /boot is if you use a "/" filesystem that isn't supported
> by grub/lilo.  The /boot filesystem is formatted ext2 or ext3 (which can be
> mounted as ext2)  and contains the kernel and initrd image to load to provide
> the necessary kernel modules for the root filesystem. (xfs, jfs, reiserfs, etc)
> 
> The reason why redhat barfed when you tried to make it 50 megs, was that redhat
> likes to use ext3 FS's.  A typical EXT3 filesystem uses a 32 Meg journal.  Thus
> you'de only have 18 megs free space for a 50 meg partition.   I recommend
> 100megs for /boot...
> 
> 
> =====
> Dave J. Andruczyk
> 
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