well yes the drive is bootable as i can boot from it it s when the kernel need to find the root device that it s the problem it s like it can't find the volume group Le 23/08/2010 15:44, m.roth at 5-cent.us a écrit : > Eric Doutreleau wrote: >> >> i m trying to install centos5 on my poweredge 2950 with no luck. >> the raid controler is LSI Logic / Symbios Logic MegaRAID SAS 1078 (rev 04) >> >> indeed all is going fine during the installation but when i reboot the >> server panic >> >> the first error i got is this one >> error mounting /dev/root on /sysroot as ext3: block device required >> >> it seems that it can't find the /dev/root devices. >> >> but when i boot in rescue mode the / partition is found without any >> problem. i can chroot in it > > Does the PERC controller know that the drive you want to boot off of is > bootable? Have you<ctrl-r>'d into the controller before boot, and then > gone to control (there's virtual disks, PD, and the third thing, I forget > exactly what it's called, but I'll be able to tell you later today), and > down on the bottom, just to the right of center, it displays the bootable > drive. Though it doesn't *look* like it, if you tab down there and down > arrow, it will display choices.... > > Oh, and you did note that no matter how you set it up, it *ALWAYS* wants > slots 2& 3 to be RAID group 0, and the drives in slots 0 and 1 to be > group 2? > > Oh, yes, and it also *REFUSES* to display any drive that's not raided, > even if you want your boot and root on a drive that's not raided.... > > I decided Friday that this *thing* was designed and signed off on by > two-toothed idiots with IQs around 57, decended from generations of the > same who couldn't manage to run a farm, whose ancestors came to the US by > selling themselves as indentured servants, who once they were here were > *fired* because they were too stupid to follow directions.... > > mark "would you like me to *really* tell you how I feel about them?" > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos