so I want to install c6.2 x86_64 onto a 2.7TB /dev/sda ... its a virgin machine with no software, using pxe boot.
disk druid or whatever seems to only want to let me have like 2tb of default stuff, I'm guessing because its not using GPT?
do I need to preboot into a shell or something and use parted before I can install ?
On 04/18/2012 10:18 AM, John R Pierce wrote:
do I need to preboot into a shell or something and use parted before I can install ?
I use a bootable CD with gparted to create the GPT partition table and the partitions.
After this, I can boot CentOS and install on the created partitions.
Mogens
On 18.4.2012 11:49, Mogens Kjaer wrote:
On 04/18/2012 10:18 AM, John R Pierce wrote:
do I need to preboot into a shell or something and use parted before I can install ?
I use a bootable CD with gparted to create the GPT partition table and the partitions.
After this, I can boot CentOS and install on the created partitions.
This means anaconda is not able to create GPT ?
From: Markus Falb markus.falb@fasel.at
This means anaconda is not able to create GPT ?
Check the 7th point "Installation on large disks" of: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html-single/Tec...
JD
On 04/18/12 1:18 AM, John R Pierce wrote:
so I want to install c6.2 x86_64 onto a 2.7TB /dev/sda ... its a virgin machine with no software, using pxe boot.
disk druid or whatever seems to only want to let me have like 2tb of default stuff, I'm guessing because its not using GPT?
do I need to preboot into a shell or something and use parted before I can install ?
ah, I can't see anywhere in the BIOS for this SuperMicro X8DT6 mobo where to enable EFI, I guess its not supported.
On Apr 18, 2012, at 12:16 PM, John R Pierce wrote:
ah, I can't see anywhere in the BIOS for this SuperMicro X8DT6 mobo where to enable EFI, I guess its not supported.
There are other ways to get booting from GPT, involving shadow EFI bootloaders and a shadow MBR. Most of this was developed for the 'hackintosh' scene but it should would fine for booting CentOS from huge drives. Look for the Chameleon boot loader. You'll need to use gdisk to set the correct GPT GUID for the Linux partitions to make Chameleon boot. Since you're not necessarily wanting to boot XNU as well as CentOS, you wouldn't need the full Chameleon; the simpler PCEFI or something like that would work fine, and you wouldn't need (nor want) the whole /Extra thing that is used to boot XNU on generic PC hardware.
I haven't tried it, but single-booting CentOS 6 on one of those bootloaders should work as well as dual-booting XNU and Linux from Chameleon and similar fake EFI bootloaders works (many have done this; see the insanelymac and infinitemac sites for more info).
Lamar Owen wrote:
On Apr 18, 2012, at 12:16 PM, John R Pierce wrote:
ah, I can't see anywhere in the BIOS for this SuperMicro X8DT6 mobo where to enable EFI, I guess its not supported.
<snip> Argh! I missed the beginning of this thread, but this is important for you to know, *specifically* with SuperMicro m/b's: 0 and 1: make sure this 3TB drive is certified for this board. We have a few Caviar Greens that either immediately, or within a few weeks or a month or two suddenly start spitting drive errors - hardware drive errors - but when I take them out and put them in *anything* else, even a cheap external eSATA drive bay, they're fine. After a *lot* of research, I believe it's from how long it waits on error handling, but there's nothing I've found that can change that enablement - WD took that capability away a couple-three years ago. 2: be *SURE* to align it on a 4K boundary, *not* a 512 one. If you change units in parted, it will default want to start in sector 63; change that to 64. Alternatively, if you tell it to start with aligned=opt, it will do it on 2048 (why not 1024, I don't know). This makes a *major* difference in speed... as in quadrupled. 3. See points 0 and 1.
Oh, yes, and the two 3TB drives, a Hitachi and a Seagate Constellation, certified for our servers which use the H8QG6 m/b, the *only* two, are not available. They're backordered *everywhere*, including CDW, and Penguin, our vendor for those servers, just admitted to me Monday that I was right, *they* had them on backorder.
mark
On 04/18/12 11:19 AM, m.roth@5-cent.us wrote:
0 and 1: make sure this 3TB drive is certified for this board. We havea few Caviar Greens
these are Seagate Constellation ES.2 enterprise nearline drives, on a LSI 9260-8i mega-sas2 raid card.
card and drives are fully qualified to coexist.
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John Doe -
John R Pierce -
Lamar Owen -
m.roth＠5-cent.us -
Markus Falb -
Mogens Kjaer