On 03/03/2012 06:48 AM, Jonathan Vomacka wrote:
This was a raid 10, would the same apply? If I do a fresh reinstall how
can I guarantee that the MBR is across all drives?
I do not think you NEED to reinstall entire system.
Check if there is /boot partition on the rest of the disks. If there
On Fri, Mar 2, 2012 at 8:27 AM, Jonathan Vomacka juvi...@gmail.com wrote:
Essentially I guess the short question is, How do I make a non bootable
drive bootable if the original MBR is no longer available?
If you haven't gotten this to work yet, it is probably as simple as
booting the Centos
On 2.3.2012 22:18, Digimer wrote:
On 03/02/2012 04:00 PM, Jonathan Vomacka wrote:
On 3/2/2012 2:46 PM, Bowie Bailey wrote:
On 3/2/2012 1:01 PM, m.r...@5-cent.us wrote:
Digimer wrote:
Bowie, in terms of RAID 10, each drive technically cant be standalone
right? The drives are striped and
On 3/4/2012 8:01 PM, Luke S. Crawford wrote:
Right. I was referring to RAID 1. For a RAID 10, you would have to
find the proper drive to boot from. This is why I tend to limit myself
to RAID 1 in software. If I need something more complex than that, I
get a hardware card so the OS just
On Friday, March 02, 2012 04:18:48 PM Digimer wrote:
10 (one-zero) == a mirror of two stripped arrays. You can lose up to two
drives, so long as they are both from the same strip set.
You really don't want a mirror of two striped arrays; you want a striped array
of mirrors.
A striped array of
On Mar 4, 2012, at 8:01 PM, Luke S. Crawford l...@prgmr.com wrote:
Right. I was referring to RAID 1. For a RAID 10, you would have to
find the proper drive to boot from. This is why I tend to limit myself
to RAID 1 in software. If I need something more complex than that, I
get a hardware
On Mon, Mar 05, 2012 at 06:12:52PM -0500, Ross Walker wrote:
Technically if the data portion is a true RAID10 you would only need to
mirror /boot to sdb, cause if both sda AND sdb are out then the whole RAID10
is SOL and there would be no need to boot off of sdc or sdd.
Having said that
Right. I was referring to RAID 1. For a RAID 10, you would have to
find the proper drive to boot from. This is why I tend to limit myself
to RAID 1 in software. If I need something more complex than that, I
get a hardware card so the OS just sees it as a single drive and you
don't have to
On Sat, Mar 3, 2012 at 12:34 AM, Robert Spangler
mli...@zoominternet.net wrote:
Do not let them tell you that you cannot boot from a software raid. I do it
here all the time. The /boot has to be on a raid1 setup to boot. Everything
else can be on a whatever raid you choose.
You don't
CentOS Community,
I have a dedicated server with 4 hard drives in a RAID 10 software
configuration running LVM. My OS is CentOS 6.2. Earlier today, I
rebooted my system and my system did not come back online. I opened a
ticket with my datacenter who informed me that one of my hard drives is
Jonathan Vomacka wrote:
CentOS Community,
I have a dedicated server with 4 hard drives in a RAID 10 software
configuration running LVM. My OS is CentOS 6.2. Earlier today, I
rebooted my system and my system did not come back online. I opened a
ticket with my datacenter who informed me that
Digimer wrote:
snip
Boot from a live CD using the CentOS 6.2 install media. Once booted:
bash# grub
grub root (hd0,0)
grub setup (hd0)
grub root (hd1,0)
grub setup (hd1)
grub root (hd2,0)
grub setup (hd2)
grub quit
bash# reboot
This assumes that grub sees the drives at '0, 1 and 2'
On 03/02/2012 01:01 PM, m.r...@5-cent.us wrote:
Digimer wrote:
snip
Boot from a live CD using the CentOS 6.2 install media. Once booted:
bash# grub
grub root (hd0,0)
grub setup (hd0)
grub root (hd1,0)
grub setup (hd1)
grub root (hd2,0)
grub setup (hd2)
grub quit
bash# reboot
This
On 3/2/2012 1:01 PM, m.r...@5-cent.us wrote:
Digimer wrote:
snip
Boot from a live CD using the CentOS 6.2 install media. Once booted:
bash# grub
grub root (hd0,0)
grub setup (hd0)
grub root (hd1,0)
grub setup (hd1)
grub root (hd2,0)
grub setup (hd2)
grub quit
bash# reboot
This
On 03/02/2012 02:39 PM, Digimer wrote:
On 03/02/2012 01:01 PM, m.r...@5-cent.us wrote:
Digimer wrote:
snip
Boot from a live CD using the CentOS 6.2 install media. Once booted:
bash# grub
grub root (hd0,0)
grub setup (hd0)
grub root (hd1,0)
grub setup (hd1)
grub root (hd2,0)
grub setup
Putting an MBR on all disks right after an OS install, as previously
mentioned, is of course the best option (although it's too late for that
in this instance). Others have talked about using the live CD to
recover from your situation, which is good.
Other, less good options that might be
Digimer! Thanks for the info. Since the HDD0 drive is completely failed,
I would need to replace it.. it doesn't have any data on it. The other
three HDD's would need the MBR. I am assuming... that because RAID 10
means Striped+Mirroring that HDD 3+4 would be mirrored and 1+2 would be
On Fri, Mar 02, 2012 at 09:03:44AM -0500, Jonathan Vomacka wrote:
CentOS Community,
I have a dedicated server with 4 hard drives in a RAID 10 software
configuration running LVM. My OS is CentOS 6.2. Earlier today, I
rebooted my system and my system did not come back online. I opened a
On 3/2/2012 2:46 PM, Bowie Bailey wrote:
On 3/2/2012 1:01 PM, m.r...@5-cent.us wrote:
Digimer wrote:
snip
Boot from a live CD using the CentOS 6.2 install media. Once booted:
bash# grub
grub root (hd0,0)
grub setup (hd0)
grub root (hd1,0)
grub setup (hd1)
grub root (hd2,0)
grub
On 3/2/2012 4:00 PM, Jonathan Vomacka wrote:
On 3/2/2012 2:46 PM, Bowie Bailey wrote:
On 3/2/2012 1:01 PM, m.r...@5-cent.us wrote:
Digimer wrote:
snip
Boot from a live CD using the CentOS 6.2 install media. Once booted:
bash# grub
grub root (hd0,0)
grub setup (hd0)
grub root (hd1,0)
On 03/02/2012 04:20 PM, Bowie Bailey wrote:
On 3/2/2012 4:00 PM, Jonathan Vomacka wrote:
On 3/2/2012 2:46 PM, Bowie Bailey wrote:
On 3/2/2012 1:01 PM, m.r...@5-cent.us wrote:
Digimer wrote:
snip
Boot from a live CD using the CentOS 6.2 install media. Once booted:
bash# grub
grub root
On 3/2/2012 3:09 PM, Devin Reade wrote:
Putting an MBR on all disks right after an OS install, as previously
mentioned, is of course the best option (although it's too late for that
in this instance). Others have talked about using the live CD to
recover from your situation, which is good.
On 3/2/2012 3:38 PM, Tru Huynh wrote:
On Fri, Mar 02, 2012 at 09:03:44AM -0500, Jonathan Vomacka wrote:
CentOS Community,
I have a dedicated server with 4 hard drives in a RAID 10 software
configuration running LVM. My OS is CentOS 6.2. Earlier today, I
rebooted my system and my system did
On Saturday 03 March 2012 00:35, the following was written:
I escalated to the DC manager and this is what he replied:
I'm sorry your having a hard time with software raid on your server and
our install process. From what I remember talking with out techs long
ago about this is, that
Jonathan Vomacka juvi...@gmail.com wrote:
On 3/2/2012 3:09 PM, Devin Reade wrote:
Putting an MBR on all disks right after an OS install, as previously
mentioned, is of course the best option (although it's too late for that
in this instance).
In terms of the installing the MBR after the OS
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