Thanks to all for the help, looks like a bios bug. Thanks again !! roberto 2006/11/27, Kevan Benson <kbenson at a-1networks.com>: > On Friday 24 November 2006 20:06, Aleksandar Milivojevic wrote: > > Kevan Benson wrote: > > > Unless it's new in 4.4, that's not the case. Grub can't undertand the md > > > devices, and has to be installed on the disk geometry individually, as > > > your link suggests, which anaconda doesn't do. I hear RHEL 5 fixes this > > > though. > > > > Installing Grub into first partition is definitely the way its done in > > CentOS 4.4, if /boot is on RAID-1 md device. Not sure if it is > > something new (I haven't noticed it before either). Actually, even if > > you attempt to force installation of Grub into MBR (for example in > > ks.cfg), Anaconda is going to ignore it and install into partition (of > > course, only if /boot is on RAID-1 md device). I've noticed this when > > installing on some used drives that had LILO in MBR. After > > installation, the machine wouldn't boot. BIOS was loading LILO from > > previous installation (which was in MBR), instead of Grub from current > > installation (which was in bootable partition). > > Ah, so anaconda installs onto the first partition of each drive when boot is > software RAID-1? That would explain much of what I saw. I usually > enountered this on machines that previouslyt had lilo installed (as you did). > It also explains why anaconda didn't error. > > > BTW, while I'm mentioning it, does anybody know a good way (or tool) to > > evict (clear, zero-out) boot loader from MBR? Preserving partition > > table of course. > > Looks like lilo -u can do it, but that's not much help unless oyu have it > installed (and I'm not sure whether or not it requires a saved copy of the > MBR from beforehand). The windows fdisk (as mentioned elsewhere in this > thread) can do it, but it might just be easier to install grub on to each > drive's MBR. > > -- > - Kevan Benson > - A-1 Networks > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- Ing. Roberto Pereyra ContenidosOnline Looking for Linux Virtual Private Servers ? Click here: http://www.spry.com/hosting-affiliate/scripts/t.php?a_aid=426&a_bid=56