On 02/06/2012 02:37 PM, Jonathan Vomacka wrote:
CentOS Community,
Is there a command to boot into a different version of the kernel? I believe this is setup via grub.conf but unsure. There are a few different kernels loaded into /boot but I want to see if there is a command to boot into a different kernel as a single instance or permanent if needed. Please advise
Without changing the /boot/grub/grub.conf: When you start CentOS/PC, press down or up error (repeatedly until menu for kernel/system selection appears). Then select desired kernel.
With changing the /boot/grub/grub.conf, but manual selection: In /boot/grub/grub.conf change:
disable hiding of the menu: #hiddenmenu
Optionally change
timeout=10
with larger number (number is in seconds).
With changing the /boot/grub/grub.conf, and auto-selection: Change: default=0
to match entry you wish to boot by default
0 = first kernel, on top 1 = second .... ....