On 01/13/2015 12:57 PM, Steve Clark wrote:
On 01/13/2015 12:47 PM, Gordon Messmer wrote:
I'm having an issue getting a C6.6 install to work on a 3 TB dual hard drive system, raid 0. I'm hoping that someone here can help.
1: Is this system booting UEFI or BIOS? 2: Is the disk partitioned with MBR or GPT? 3: Is /boot on its own partition?
3TB drives are larger than MBR and BIOS properly support, so they're only really expected to work on a system partitioned with GPT and
Not exactly true - they work fine with an MBR but you can access 2/3 of the drive. Also it is not necessary to use UEFI to boot.
You can have a fakeout mbr that is used for a standard bios boot.
# fdisk -l
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sda: 3000.6 GB, 3000592982016 bytes 255 heads, 63 sectors/track, 364801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000
Device Boot Start End Blocks Id System/dev/sda1 1 267350 2147483647+ ee GPT Partition 1 does not start on physical sector boundary. Tue Jan 13 12:55:21 EST 2015 P308771:~
# parted -l Model: ATA WDC WD30EFRX-68E (scsi) Disk /dev/sda: 3001GB Sector size (logical/physical): 512B/4096B Partition Table: gpt
Number Start End Size File system Name Flags 1 1049kB 2097kB 1049kB bbp bios_grub 2 2097kB 1002MB 1000MB ext3 primary 3 1002MB 5002MB 3999MB linux-swap(v1) primary 4 5002MB 3001GB 2996GB ext4 primary
In addition this is how we partition our 3TB drives for a bios boot using parted. parted -s ${DRIVE} -- mklabel gpt \ mkpart bbp 1MB 2MB \ set 1 bios_grub on \ mkpart primary ext3 2MB 1002MB \ mkpart primary linux-swap 1002MB 5002MB \ mkpart primary ext2 5002MB -1
booting via UEFI. And in that case, /boot and /boot/efi need to be individual partitions.