Red Hat Bugzilla – Bug 109289
Anaconda incorrectly installs MBR on Compaq's connected to external storage
Last modified: 2007-11-30 17:06:59 EST
Description of problem:
When installing on a Compaq that uses the cciss driver, anaconda
will install grub to the first external disk, rather than the
internal disk - the result is that the machine will not boot.
This is because anaconda thinks that sda (the first LUN on the SAN
or external disk pack) contains the MBR. Anaconda should realise
that on machines that use the cciss driver, the MBR is actually
located on cciss/c0d0.
Version-Release number of selected component (if applicable):
all versions on all versions of RHL and RHEL
Steps to Reproduce:
1. Install on a Compaq that uses the cciss driver (e.g. DL380) and
that is connected to a SAN or some other form of external storage.
2. Choose MBR for location of bootloader.
Machine will not boot
Workaround - disconnect SAN during installation.
This is not generally true. There is no way to reliably determine
boot order on x86 hardware. This is why the advanced boot loader
options screen allows you to reorder the drives to match what your set