Why is GPT recommended for UEFI
3rd time re partitioning my 1TB SSD so hoping to get it right.
Learning but still many questions
Because my system has UEFI firmware and already have a SSD dedicated to Windows my understanding is that I MUST have a UEFI boot partition on my 2nd SSD dedicated to Linux.
And if using GPT partitioning in addition it needs to have the 'boot' flag set.
My first point of confusion is conflicting device I am reading about GPT vs MBR-msdos partitioning.
At ubuntuforums here under Two Drive Installs>Partitioning it states
With UEFI, gpt partitioning is (almost) required. If multiple drives
all bootable drives need to be gpt and best if data drives are also
gpt in case later you want to make it bootable. With gpt there is no
primary, extended, logical partitions as in MBR(msdos) nor the 4
primary partition limit. You can only have one efi partition per drive
and with gparted you use the boot flag to assign it as the efi
partition. No other partitions can have boot flag. Only if booting in
BIOS mode with Ubuntu on gpt partitioned drive, you need a bios_grub
partition. Windows will only boot in UEFI mode so you cannot install
Windows to gpt drive unless booting with UEFI.
but this partition guide over at ubuntu-mate.community seems to indicate using MBR partitioning
ubuntu-mate.community
see Part 4: Create a UEFI boot partition. + swap + root + home partitions.
Which is right?
Why is GPT partitioning recommended for UEFI?
partition uefi gpt mbr
edited Jan 5 '17 at 2:55
Mongrel
2,08131747
asked Jan 5 '17 at 2:53
BachaloBachalo
2582516
bumped to the homepage by Community♦ 9 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
3rd time re partitioning my 1TB SSD so hoping to get it right.
Learning but still many questions
Because my system has UEFI firmware and already have a SSD dedicated to Windows my understanding is that I MUST have a UEFI boot partition on my 2nd SSD dedicated to Linux.
And if using GPT partitioning in addition it needs to have the 'boot' flag set.
My first point of confusion is conflicting device I am reading about GPT vs MBR-msdos partitioning.
At ubuntuforums here under Two Drive Installs>Partitioning it states
With UEFI, gpt partitioning is (almost) required. If multiple drives
all bootable drives need to be gpt and best if data drives are also
gpt in case later you want to make it bootable. With gpt there is no
primary, extended, logical partitions as in MBR(msdos) nor the 4
primary partition limit. You can only have one efi partition per drive
and with gparted you use the boot flag to assign it as the efi
partition. No other partitions can have boot flag. Only if booting in
BIOS mode with Ubuntu on gpt partitioned drive, you need a bios_grub
partition. Windows will only boot in UEFI mode so you cannot install
Windows to gpt drive unless booting with UEFI.
but this partition guide over at ubuntu-mate.community seems to indicate using MBR partitioning
ubuntu-mate.community
see Part 4: Create a UEFI boot partition. + swap + root + home partitions.
Which is right?
Why is GPT partitioning recommended for UEFI?
partition uefi gpt mbr
edited Jan 5 '17 at 2:55
Mongrel
2,08131747
asked Jan 5 '17 at 2:53
BachaloBachalo
2582516
bumped to the homepage by Community♦ 9 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
1
One reason is that MBR fails to work with bootable disks above 2Tb, Another reason is that an MBR does not have a backup whereas there are 2 copies of a GPT on a disk.
– fpmurphy
Jan 5 '17 at 4:01
add a comment |
3rd time re partitioning my 1TB SSD so hoping to get it right.
Learning but still many questions
Because my system has UEFI firmware and already have a SSD dedicated to Windows my understanding is that I MUST have a UEFI boot partition on my 2nd SSD dedicated to Linux.
And if using GPT partitioning in addition it needs to have the 'boot' flag set.
My first point of confusion is conflicting device I am reading about GPT vs MBR-msdos partitioning.
At ubuntuforums here under Two Drive Installs>Partitioning it states
With UEFI, gpt partitioning is (almost) required. If multiple drives
all bootable drives need to be gpt and best if data drives are also
gpt in case later you want to make it bootable. With gpt there is no
primary, extended, logical partitions as in MBR(msdos) nor the 4
primary partition limit. You can only have one efi partition per drive
and with gparted you use the boot flag to assign it as the efi
partition. No other partitions can have boot flag. Only if booting in
BIOS mode with Ubuntu on gpt partitioned drive, you need a bios_grub
partition. Windows will only boot in UEFI mode so you cannot install
Windows to gpt drive unless booting with UEFI.
but this partition guide over at ubuntu-mate.community seems to indicate using MBR partitioning
ubuntu-mate.community
see Part 4: Create a UEFI boot partition. + swap + root + home partitions.
Which is right?
Why is GPT partitioning recommended for UEFI?
partition uefi gpt mbr
edited Jan 5 '17 at 2:55
Mongrel
2,08131747
asked Jan 5 '17 at 2:53
BachaloBachalo
2582516
3rd time re partitioning my 1TB SSD so hoping to get it right.
Learning but still many questions
Because my system has UEFI firmware and already have a SSD dedicated to Windows my understanding is that I MUST have a UEFI boot partition on my 2nd SSD dedicated to Linux.
And if using GPT partitioning in addition it needs to have the 'boot' flag set.
My first point of confusion is conflicting device I am reading about GPT vs MBR-msdos partitioning.
At ubuntuforums here under Two Drive Installs>Partitioning it states
With UEFI, gpt partitioning is (almost) required. If multiple drives
all bootable drives need to be gpt and best if data drives are also
gpt in case later you want to make it bootable. With gpt there is no
primary, extended, logical partitions as in MBR(msdos) nor the 4
primary partition limit. You can only have one efi partition per drive
and with gparted you use the boot flag to assign it as the efi
partition. No other partitions can have boot flag. Only if booting in
BIOS mode with Ubuntu on gpt partitioned drive, you need a bios_grub
partition. Windows will only boot in UEFI mode so you cannot install
Windows to gpt drive unless booting with UEFI.
but this partition guide over at ubuntu-mate.community seems to indicate using MBR partitioning
ubuntu-mate.community
see Part 4: Create a UEFI boot partition. + swap + root + home partitions.
Which is right?
Why is GPT partitioning recommended for UEFI?
partition uefi gpt mbr
partition uefi gpt mbr
edited Jan 5 '17 at 2:55
Mongrel
2,08131747
asked Jan 5 '17 at 2:53
BachaloBachalo
2582516
edited Jan 5 '17 at 2:55
Mongrel
2,08131747
asked Jan 5 '17 at 2:53
BachaloBachalo
2582516
edited Jan 5 '17 at 2:55
Mongrel
2,08131747
edited Jan 5 '17 at 2:55
Mongrel
2,08131747
edited Jan 5 '17 at 2:55
Mongrel
2,08131747
2,08131747
asked Jan 5 '17 at 2:53
BachaloBachalo
2582516
asked Jan 5 '17 at 2:53
BachaloBachalo
2582516
asked Jan 5 '17 at 2:53
BachaloBachalo
2582516
2582516
bumped to the homepage by Community♦ 9 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 9 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
1
One reason is that MBR fails to work with bootable disks above 2Tb, Another reason is that an MBR does not have a backup whereas there are 2 copies of a GPT on a disk.
– fpmurphy
Jan 5 '17 at 4:01
add a comment |
1
One reason is that MBR fails to work with bootable disks above 2Tb, Another reason is that an MBR does not have a backup whereas there are 2 copies of a GPT on a disk.
– fpmurphy
Jan 5 '17 at 4:01
1
1
One reason is that MBR fails to work with bootable disks above 2Tb, Another reason is that an MBR does not have a backup whereas there are 2 copies of a GPT on a disk.
– fpmurphy
Jan 5 '17 at 4:01
One reason is that MBR fails to work with bootable disks above 2Tb, Another reason is that an MBR does not have a backup whereas there are 2 copies of a GPT on a disk.
– fpmurphy
Jan 5 '17 at 4:01
add a comment |
1 Answer
1
active
oldest
votes
GPT is part of the UEFI specification, they go hand in hand. While UEFI is supposed to also support MBR partitioned disks, that is for legacy reasons only. The UEFI + MBR combination is a deviation from what you are supposed to be using, and may lead to surprises with some (future) operating systems or tools.
answered Jan 5 '17 at 7:42
Johan MyréenJohan Myréen
7,66411524
add a comment |
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GPT is part of the UEFI specification, they go hand in hand. While UEFI is supposed to also support MBR partitioned disks, that is for legacy reasons only. The UEFI + MBR combination is a deviation from what you are supposed to be using, and may lead to surprises with some (future) operating systems or tools.
answered Jan 5 '17 at 7:42
Johan MyréenJohan Myréen
7,66411524
add a comment |
GPT is part of the UEFI specification, they go hand in hand. While UEFI is supposed to also support MBR partitioned disks, that is for legacy reasons only. The UEFI + MBR combination is a deviation from what you are supposed to be using, and may lead to surprises with some (future) operating systems or tools.
answered Jan 5 '17 at 7:42
Johan MyréenJohan Myréen
7,66411524
add a comment |
GPT is part of the UEFI specification, they go hand in hand. While UEFI is supposed to also support MBR partitioned disks, that is for legacy reasons only. The UEFI + MBR combination is a deviation from what you are supposed to be using, and may lead to surprises with some (future) operating systems or tools.
answered Jan 5 '17 at 7:42
Johan MyréenJohan Myréen
7,66411524
GPT is part of the UEFI specification, they go hand in hand. While UEFI is supposed to also support MBR partitioned disks, that is for legacy reasons only. The UEFI + MBR combination is a deviation from what you are supposed to be using, and may lead to surprises with some (future) operating systems or tools.
answered Jan 5 '17 at 7:42
Johan MyréenJohan Myréen
7,66411524
answered Jan 5 '17 at 7:42
Johan MyréenJohan Myréen
7,66411524
answered Jan 5 '17 at 7:42
Johan MyréenJohan Myréen
7,66411524
answered Jan 5 '17 at 7:42
Johan MyréenJohan Myréen
7,66411524
7,66411524
add a comment |
add a comment |
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1
One reason is that MBR fails to work with bootable disks above 2Tb, Another reason is that an MBR does not have a backup whereas there are 2 copies of a GPT on a disk.
– fpmurphy
Jan 5 '17 at 4:01