RE: RHEL rescue mode via PXE boot

["Robinson, Andrew W." <andrew w robinson mms gov>]

> From: wolf2k5 [mailto:wolf2k5 gmail com] 
> 
> Is there any way to start RHEL in rescue mode via PXE boot?

Yes you can. Here's how I do it.

These are the pertinent lines from my 
/tftpboot/linux-install/pxelinux.cfg/default file. Note the "rescue"
directive.

label 7
  kernel rhel4r1/vmlinuz
  append initrd=rhel4r1/initrd.img \
    ramdisk_size=10000 \
    rescue \
    ks=http://10.20.2.3/kickstart/ks_rescue.cfg

(Note: the line continuations for readability. They are 
not allowed in the actual file.)

This is the corresponding section in the 
/tftpboot/linux-install/msgs/boot.msg file:

Rescue Modes:

5. RHEL 2.1 ES U4 Rescue Mode
6. RHEL 3 ES U4 Rescue Mode
7. RHEL 4 ES R1 Rescue Mode

Using the kickstart file is not required. It is for 
convenience, answering most of the questions that get 
asked:

# Kickstart configuration file RHEL 3 EL U4 Rescue Mode 
#
#System  language
#
lang en_US
#
#Language modules to install
#
langsupport --default=en_US
#
#System keyboard
#
keyboard us
#
#System mouse
#
mouse genericwheelusb 
#
#Retrieve rescue system from NFS
#
nfs --server=10.20.2.3 --dir=/var/kickstart/RHEL/4/ES/r1
#
#Network information
#
network --bootproto=dhcp

Andrew Robinson