The ability to collect logs during the installation (diskful and diskless) can be enabled by setting the "site.xcatdebugmode" to different levels (0,1,2), which is quite helpful when debugging installation problems.
+---------------------+--------------+--------------+--------------+ | xcatdebugmode | 0 | 1 | 2 | +---------------------+----+----+----+----+----+----+----+----+----+ | OS Distribution SLESRHELUBT SLES +================+====+====+====+====+====+====+====+====+====+====+ | Pre-Install | MN | N | N | N | + logs +----+----+----+----+----+----+----+----+----+----+ | | CN | C1 | C1 C2 | C1 C2 | +----------------+----+----+----+----+----+----+----+----+----+----+ | Installer | MN | N | N | N | M1 | M1 | M1 | M1 | M1 | M1 | + logs +----+----+----+----+----+----+----+----+----+----+ | | CN | C3 | C3 | C3 | C3 | C3 | C3 | C3 | C3 | C3 | +----------------+----+----+----+----+----+----+----+----+----+----+ | Post-Install | MN | M2 | M3 | M3 | + logs +----+----+----+----+----+----+----+----+----+----+ | | CN | C1 | C1 C2 | C1 C2 | +----------------+----+----+----+----+----+----+----+----+----+----+ | PostBootScript | MN | M2 | M3 | M3 | + logs +----+----+----+----+----+----+----+----+----+----+ | | CN | C1 | C1 C2 | C1 C2 | +----------------+----+----+----+----+----+----+----+----+----+----+
+---------------------+--------------+--------------+--------------+ | xcatdebugmode | 0 | 1 | 2 | +---------------------+----+----+----+----+----+----+----+----+----+ | OS Distribution SLESRHELUBT SLES +================+====+====+====+====+====+====+====+====+====+====+ | Provision | MN | N | M3 | M3 | + logs +----+----+----+----+----+----+----+----+----+----+ | | CN | N | N | N | +----------------+----+----+----+----+----+----+----+----+----+----+ | PostBootScript | MN | M3 | M3 M4 | M3 M4 | + logs +----+----+----+----+----+----+----+----+----+----+ | | CN | C1 | C1 C2 | C1 C2 | +----------------+----+----+----+----+----+----+----+----+----+----+
- Pre-Install logs: the logs of pre-installation scripts, including:
%pre
section in anaconda,<pre-scripts/>
section for SUSE andpartman/early_command
andpreseed/early_command
sections for ubuntu.- STDOUT and STDERR of the scripts
- debug trace output of bash scripts with
set -x
- Installer logs: the logs from the os installer itself, i.e, the logs of installation program (anaconda, autoyast and preseed,etc.)
- Post-Install logs: the logs of post-installation scripts, including
%post
section in anaconda,<chroot-scripts/>
and<post-scripts/>
sections for SUSE andpreseed/late_command
section for ubuntu.- STDOUT and STDERR of the scripts
- debug trace output of bash scripts with
set -x
- Provision logs: the logs during the diskless provision.
- PostBootScript logs: the logs during the post boot scripts execution, which are specified in
postbootscripts
attribute of node and osimage definition and run during the 1st reboot after installation.
MN: the logs forwarded to management node:
- M1: the installer logs will be forwarded to the MN in
/var/log/xcat/computes.log
file. - M2: the error messages will be forwarded to
/var/log/xcat/computes.log
file on MN only when critical error happens. - M3: the installation logs will be forwarded to
/var/log/xcat/computes.log
file on MN. - M4: the debug trace(
set -x
or-o xtrace
) of bash scripts enabled. - N: the logs will not be forwarded to MN.
CN: the logs on compute node:
- C1 - the installation logs will be saved to
/var/log/xcat/xcat.log
file on CN. - C2 - the debug trace(
set -x
or-o xtrace
) of bash scripts enabled. - C3 - the installer logs will be saved to the CN in
/var/log/anaconda
for RHEL,/var/log/YaST2
for SLES,/var/log/installer
for UBT. - N - the logs will not be saved to CN.