Hitachi Compute Blade 2500 series, Compute Blade 500 series Installation Manual page 45

this case, perform the grub menu on the remote console because the
grub menu is not displayed at the Linux boot.
Example:
For CB 2000, add "serial --unit=0 --speed=115200".
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For CB 2500/500, add "serial --unit=1 --speed=115200".
Add "terminal --timeout=10 serial console".
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Delete "quiet rhgb" from the Kernel line.
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For CB2000, add the ending of the Kernel line as follow:
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nmi_watchdog=0 mce=0 pci=noaer no_timer_check
console=ttyS0,115200
For CB2500/500, add the ending of the Kernel line as follow:
nmi_watchdog=0 mce=0 pci=noaer no_timer_check
console=ttyS1,115200
• For CB 2000, add "vga=792" as well if LPAR manager version is
59-41/79-41 or later.
For CB 2500/500, add "vga=792" as well if LPAR manager version
is 01-60 or later.
The following shows an example of grub.conf setting for Red Hat
Enterprise Linux 6.5:
Hitachi Compute Blade Series OS Installation Guide for Red Hat Enterprise Linux
Red Hat Enterprise Linux 6
2-25