The known issue and manual setup of the MBR on the second drive during install that I described in my previous post works seamlessly for me. I do however usually setup GRUB in the boot partition, that is during install I check off advanced boot load options and change the GRUB location from /dev/hd? to /dev/hd?x (i.e., /dev/hda -> /dev/hda1). Presumably, this drops in a 'standard MBR' that just looks for the active partition and transfers control. I've not had the issue you describe, when I've had a master drive has fail, my systems seamlessly boots off the second drive. Brett On 9/14/06, TimJowers at Yahoo.Com <timjowers at yahoo.com> wrote: > > Maybe someone can clear up the grub conf for me. Has anyone gotten this to > work: two IDE/ATA drivers. Slave is a spare duplicate of the master. Goal is to > be able to boot to Spare at any time and run it instead. What step am I > missing? > When I tried to duplicate a system I failed using this method due to the > /boot configuration being specific to the disk layout in the box. That is, if I > copied disk A to disk B and then wanted to boot to B I believe I would have to > remove A and strap B as the master. Combined SCSI and ATA totally failed on > GRUB knowing which disk is which. Ended up having to first install the target > slave disk and then moved the disk. Copied everything except /boot. > My impression is RAID is the only thing which would work. My goal was > actually to create several systems based on the install of one master system. > The other systems had random numbers of disks and such. The only way i got it > to work was Ch1Master had to be the boot disk in all of them. I mucked around > with > /boot/grub/grub.conf and device.map to no avail. > > Thanks, > TimJowers > > --- Sebastien Tremblay <sebastien.tremblay at au.cmpmedica.com> wrote: > > > Hi, > > > > I've been playing with CentOS quite a bit lately (and I must say it's > > growing on me!! :) and I was now able to convince my boss that we could > > get a box and gradually start migrating our hosting from win2k3 to > > centos. > > > > So anyway, I've got a new box at the colo ready up and running - P4 3Ghz > > w/HT 2Ghz RAM 2x70Gb HDD, running Centos4.4 fully up-to-date. Now my two > > questions are; > > > > (1.) In terms of backup, I'd like to have a cron sending out an nightly > > incremental backup of user files. I'd also like to have HDA to be copied > > backed up entirely (maybe weekly) onto HDB (were're not going to use > > 140GB anyway!) so that is hda crashes, I`d swap both of the hdds and > > boot from the backup. Now for that second step, I was reading that dd > > was quite CPU intensive? Would there be other alternatives? Advices on > > doing backups? > > > > (2.) I've got no physical access to the box, and the box has obviously > > no video or sound. Considering this, would it possible to remotely > > administer the box using VNC in a GUI environment? - I figured 2Ghz > > could probably handle me starting x sometimes...! So if possible.. How > > would I do it? I`m assuming there are no `yum install x`.... > > > > Anyway.. Thanks for any input you may have on the both topics! > > > > Cheers, > > > > Seb. > > > > _____________________________________________________________________ > > This message and any attachments are confidential and are solely intended for > > the use of the addressee(s). If you are not the intended recipient please > > contact the sender by reply email. Please also disregard the contents of this > > email and delete and destroy any copies immediately. CMPMedica Australia Pty > > Ltd does not accept liability for the views expressed in this email or for > > the consequences of any computer viruses that may be transmitted with this > > email. Also subject to copyright, no part of this message should be > > reproduced or transmitted without written consent. > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > http://lists.centos.org/mailman/listinfo/centos > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >