Red Hat Enterprise Linux 4 rescue mode using the HTTP and NFS method, gives two different rescue environments

Solution Verified - Updated -

Issue

  • Booting into RHEL 4.7 rescue mode using the HTTP and NFS method, gives two different rescue environments :

    default RHEL4.7-i386-ES
    label   RHEL4.7-i386-ES
        kernel RHEL4.7-i386-ES/vmlinuz
        append rescue initrd=RHEL4.7-i386-ES/initrd.img ramdisk_size=10000 text nofb
    

1. Using NFS : a bash shell and all commands are available, such as scp, ssh, ftp (even if you skip mounting the existing installation)

-/bin/sh-3.00# which scp
/usr/bin/scp

2. Using Http : a bourne shell and scp,ssh are only available if the existing installation is mounted.

#which scp
/mnt/sysimage/usr/bin/scp
  • Why is this difference present between http and nfs?

Environment

  • Red Hat Enterprise Linux 4

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