-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Aleksey Tsalolikhin Sent: Sunday, October 03, 2010 1:17 AM To: CentOS mailing list Subject: [CentOS] system "stuck" with 2.6.18-128 kernel. how to move to2.6.18-194.17?
Hi. I just noticed I had a CentOS 5.3 system that I updated to CentOS 5.5 a few days ago, and I just ran "yum -y update" again to get the latest kernel, and I just noticed it still has the old 2.6.18-128 kernel instead of the new 2.6.18-194.17. What gives?
/etc/grub.conf points at 2.6.18-194.17, but when I reboot, 2.6.18-128 comes up.
Any suggestions?
Thanks, -at
myserver# yum -y update ... myserver# reboot .....
myserver# uname -a Linux hwd-ddc-sonydb-prod 2.6.18-128.4.1.el5 #1 SMP Tue Aug 4 20:19:25 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux myserver# cat /etc/grub.conf # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/md1 # initrd /initrd-version.img #boot=/dev/md0 default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.18-194.17.1.el5)
Caveat: I am not a grub guru, and don't play one on TV. This is the only "title" line in your grub.conf, so it's the only entry in your grub.conf as far as grub cares.
root (hd0,0) kernel /vmlinuz-2.6.18-194.17.1.el5 ro root=/dev/md1 initrd /initrd-2.6.18-194.17.1.el5.img title CentOS(2.6.18-194.11.4.el5) root (hd0,0) kernel /vmlinuz-2.6.18-194.11.4.el5 ro root=/dev/md1 initrd /initrd-2.6.18-194.11.4.el5.img title CentOS (2.6.18-128.4.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-128.4.1.el5 ro root=/dev/md1 initrd /initrd-2.6.18-128.4.1.el5.img myserver# rpm -q kernel
This is the last kernel line, so it's the one that grub acts on. Result: You boot 2.6.18-128.4.1.el5
Method to test: check your menu screen at boot time, see if there is only 1 entry; put 'title' in front of '(2.6.18-194.11.4.el5)' and '(2.6.18-128.4.1.el5)' in grub.conf, reboot, and see if you now have 3 entries in the grub boot menu screen; see if putting in the two title lines causes 'default=0' to boot 2.6.18-194.17.1.el5
/blather
kernel-2.6.18-128.4.1.el5 kernel-2.6.18-194.11.4.el5 kernel-2.6.18-194.17.1.el5 myserver# _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
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