8.1.5 Other boot tricks with the boot prompt
The system can be booted into a particular runlevel and configuration using the
lilo boot prompt. Details are given in the BootPrompt-HOWTO
(LDP).
If you want to boot the system into runlevel 4, use the following input at the
lilo boot prompt.
boot: Linux 4
If you want to boot the system into normally functioning single-user mode and
you know the root password, one of the following examples at the
lilo boot prompt will work.
boot: Linux S
boot: Linux 1
boot: Linux -s
If you want to boot the system with less memory than system actually has (say
48MB for a system with 64MB), use this input at the lilo boot
prompt:
boot: Linux mem=48M
Make sure not to specify more than the actual memory size here, otherwise the
kernel will crash. If one has more than 64MB of memory, e.g. 128MB, unless
one executes mem=128M at the boot prompt or includes a similar
append line in /etc/lilo.conf, old kernels and/or a motherboard
with an old BIOS will not use memory beyond 64MB.
