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 .... .... -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant