Kernel panic when PXE booting HP BladeSystem bc2500 Blade

  • 7002099
  • 11-Mar-2009
  • 27-Apr-2012

Environment


Novell ZENworks 10 Configuration Management with Support Pack 1 - 10.1 Imaging

Situation

Kernel panic when PXE booting HP Bladesystem bc2500 workstations.

ERROR:

RAMDISK: compressed image found at block 0crc error
CFS: Cannot open rot device"<NULL>" orunknown-block (8,9)
Please append a correct"root=" boot option
Kernel panic-not syncing: CFS: Unable to mountroot fs on unknown-block (8,9)

Resolution

Workaround:

Modified the RAMDISK memory size in the z_maint.cfg andz_auto.cfg files. These files are found in %ZENWORKS_INSTALL_PATH\share\tftp.

e.g.

#====================== WARNING! ======================#
#  DO NOT EDIT THIS FILE!
#
#  Modifying this file is unsupported and can have
#  unpredictable results on ZENworks Preboot Services
#======================================================#

ZENWORKSAPPEND 1   
DEFAULT imaging
LABEL imaging
    kernel boot\linux
    append 5 initrd=boot\initrd mode=2 rootimage=/rootramdisk_size=102400install=tftp://$PXESERVER/boot splash=silent vga=0x314 tftptimeout=50 $KERNEL_PARMS

Additional Information

Root cause:

The RAM Disk did not have enough memory allocated for use.