On Tuesday 03 February 2009, Paolo Supino wrote: > Hi > Here's my /boot/grub/grub.conf content: > grub.conf generated by anaconda > # > # Note that you do not have to rerun grub after making changes to this file > # NOTICE: You do not have a /boot partition. This means that > # all kernel and initrd paths are relative to /, eg. > # root (hd0,0) > # kernel /boot/vmlinuz-version ro > root=/dev/mapper/sil_aibhcbccdhagp1 > # initrd /boot/initrd-version.img > #boot=/dev/mapper/sil_aibhcbccdhag > default=0 > timeout=10 > splashimage=(hd0,0)/boot/grub/splash.xpm.gz > hiddenmenu > title CentOS (2.6.18-92.1.22.el5) > root (hd0,0) > kernel /boot/vmlinuz-2.6.18-92.1.22.el5 ro root=LABEL=/ > pci=nommconf initrd /boot/initrd-2.6.18-92.1.22.el5.img > title CentOS (2.6.18-92.el5) > root (hd0,0) > kernel /boot/vmlinuz-2.6.18-92.el5 ro root=LABEL=/ pci=nommconf > initrd /boot/initrd-2.6.18-92.el5.img A machine with this /boot/grub/grub.conf should for sure not boot with "acpi=off". The only idea I have left is that your install is messed up with regards to /boot as a partition or as part of /. In any way grub does not read the file above when it boots. So what does it read on your machine... Maybe you could try a: find / -name grub.conf /Peter > As you can see there's no mentioning of "acpi=off" anywhere .... and > unless I stop it and change the command line parameter from acpi=off to > pci=nommconf it still boots with acpi=off ... :-( -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part. URL: <http://lists.centos.org/pipermail/centos/attachments/20090203/aa9d7a8c/attachment-0004.sig>