Appendix D. Troubleshooting Your Installation of Red Hat Linux

103

Replace xx with the amount of RAM you have in megabytes. Remember that per image append

lines completely overwrite the global append line. It might be worth adding this to the per image

descriptions, as shown in this example:

mem=128M

append="mem=128M"

In

/boot/grub/grub.conf

, the above example would look similar to the following:

#NOTICE: You have a /boot partition. This means that

#

all kernel paths are relative to /boot/

default=0

timeout=30

splashimage=(hd0,0)/grub/splash.xpm.gz

title Red Hat Linux (2.4.6 2)

root (hd0,0)

kernel /vmlinuz 2.2.6 2 ro root=/dev/hda3 mem=128M

Once you reboot, the changes made to

grub.conf

will be reflected on your system.

In

/etc/lilo.conf

, the above example would look similar to the following:

boot=/dev/sda

map=/boot/map

install=/boot/boot.b

prompt

timeout=50

image=/boot/vmlinuz 2.2.12 20

label=linux

root=/dev/sda1

initrd=/boot/initrd 2.2.12 20.img

read only

append="mem=128M"

Remember to run

/sbin/lilo  v

after changing

/etc/lilo.conf

.

Note that you can also produce the same effect by actually passing this option when you are specifying

the label/image to use in GRUB or LILO.

Once you have loaded the GRUB boot screen, type

e

for edit. You will be presented with a list of

items in the configuration file for the boot label you have selected.

Choose the line that starts with

kernel

and type

e

to edit this boot entry.

At the end of the

kernel

line, add

mem=xxM

where xx equals the amount of RAM in your system.

Press [Enter] to exit edit mode.

Once the GRUB screen has returned, type

b

to boot with your new RAM specifications.

At the graphical LILO screen, press [Ctrl] [x] to exit to the

boot:

prompt. Next, enter the following

at the

boot:

prompt:

linux mem=xxM

Remember to replace xx with the amount of RAM in your system. Press [Enter] to boot.