Hi,
After reading the tutorial at http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 I have the following question:
What should I put instead of splashimage=(hd0,0)/grub/splash.xpm.gz
and
root (hd0,0)
on /etc/grub.conf? Should I leave those lines untouched? If so, how would grub know where to boot from if /dev/sda fails?
Or I would need to swap the drives in order to boot properly and then put a new one as /dev/sdb and then add it to the array?
Thanks in advance for all the help.
Best regards,
Eugenio Pacheco
If sda fails outright, sdb will BECOME sda. This is usually the case when a "drive fails".
If sda is skillfully overwritten in specific places with the intention of producing a curcumstance in which Linux kernel raid will fail, then Linux kernel raid will fail.
On Tue, Oct 1, 2013 at 11:03 AM, Eugenio Pacheco eugeniopacheco@gmail.com wrote:
Hi,
After reading the tutorial at http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 I have the following question:
What should I put instead of splashimage=(hd0,0)/grub/splash.xpm.gz
and
root (hd0,0)on /etc/grub.conf? Should I leave those lines untouched? If so, how would grub know where to boot from if /dev/sda fails?
Or I would need to swap the drives in order to boot properly and then put a new one as /dev/sdb and then add it to the array?
Thanks in advance for all the help.
Best regards,
Eugenio Pacheco _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On Wed, Oct 2, 2013 at 4:50 AM, Billy Crook bcrook@riskanalytics.com wrote:
If sda fails outright, sdb will BECOME sda. This is usually the case when a "drive fails".
In the case of the partionable RAID stated by OP, the boot fails (see my posting from June/2012.
If sda is skillfully overwritten in specific places with the intention of producing a curcumstance in which Linux kernel raid will fail, then Linux kernel raid will fail.
Even a non raid will fail, will it not?
On Tue, Oct 1, 2013 at 9:33 PM, Eugenio Pacheco eugeniopacheco@gmail.com wrote:
Hi,
After reading the tutorial at http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 I have the following question:
Please steer away from the above if possible. I did this around June/2013 time frame and posted my woes in this mailing list.
Please search the archives and go through the entire thread.
On Wed, Oct 2, 2013 at 4:29 PM, Arun Khan knura9@gmail.com wrote:
June/2013 time frame and posted my woes in this mailing list.
oops, s/b June/2012.
-- Arun Khan
W dniu 2013-10-02 13:03, Arun Khan pisze:
On Wed, Oct 2, 2013 at 4:29 PM, Arun Khan knura9@gmail.com wrote:
June/2013 time frame and posted my woes in this mailing list.
oops, s/b June/2012.
Yes, June. But, if i good remember, this was a problem with dracut itself. I have had C6.2 with standard raid-1 at top of partition and suffered this problem too. Dracut update solved my problem with system non booting with one drive in RAID-1 scenario. dracut updated Oct 03 2012.
So above solution at wiki isn't bad at all.
I.Piasecki
-- Arun Khan _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On Wed, Oct 2, 2013 at 5:10 PM, Ireneusz Piasecki irekpias@op.pl wrote:
W dniu 2013-10-02 13:03, Arun Khan pisze:
On Wed, Oct 2, 2013 at 4:29 PM, Arun Khan knura9@gmail.com wrote:
June/2013 time frame and posted my woes in this mailing list.
oops, s/b June/2012.
Yes, June. But, if i good remember, this was a problem with dracut itself. I have had C6.2 with standard raid-1 at top of partition and suffered this problem too. Dracut update solved my problem with system non booting with one drive in RAID-1 scenario. dracut updated Oct 03 2012.
Indeed, it was a dracut problem but for me, with dracut updates, there was no solution in the Aug/Sep time frame during my consultation gig at client site.
So above solution at wiki isn't bad at all.
YMMV and it is good that the problem has been fixed.
-
Arun Khan -
Billy Crook -
Eugenio Pacheco -
Ireneusz Piasecki