grub-install on hybrid mbr disk
I followed the very detailed guide for making hybrid MBR record (GPT/MBR) taken from here
Now, gdisk says I have hybrid mbr. But I can only boot in UEFI and cannot do that in BIOS (I use external hard drive). Seems that simple execution of grub-install installs only uefi part. I saw the discussion about requirement for protective entry to be the first on the disk, so I made it the first and that is not the root cause.
So the question is how to install GRUB so it would boot OS both being started from BIOS/MBR and UEFI/GPT?
$ sudo gdisk /dev/sdd
GPT fdisk (gdisk) version 1.0.1
Partition table scan:
MBR: hybrid
BSD: not present
APM: not present
GPT: present
Found valid GPT with hybrid MBR; using GPT.
Command (? for help): r
Recovery/transformation command (? for help): o
Disk size is 468862128 sectors (223.6 GiB)
MBR disk identifier: 0x7213C4A0
MBR partitions:
Number Boot Start Sector End Sector Status Code
1 1 208895 primary 0xEE
2 * 208896 1196031 primary 0x83
3 1196032 135413759 primary 0x83
4 200425472 468860927 primary 0x83
Recovery/transformation command (? for help): p
Disk /dev/sdd: 468862128 sectors, 223.6 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 21773ad9-3d43-4832-85b7-6c841d20ce75
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 468862094
Partitions will be aligned on 1-sector boundaries
Total free space is 62183 sectors (30.4 MiB)
Number Start (sector) End (sector) Size Code Name
1 63 80324 39.2 MiB EF00 Basic data partition
2 208896 1196031 482.0 MiB 8300 Basic data partition
3 1196032 135413759 64.0 GiB 8300
4 135413760 168968191 16.0 GiB 0700 Basic data partition
5 168968192 200425471 15.0 GiB 0700 Basic data partition
6 200425472 468860927 128.0 GiB 8300
7 81920 149503 33.0 MiB EF02
$ sudo parted /dev/sdd
GNU Parted 3.2
Using /dev/sdd
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: ATA OCZ-VECTOR150 (scsi)
Disk /dev/sdd: 240GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 32.3kB 41.1MB 41.1MB fat32 Basic data partition boot, esp
7 41.9MB 76.5MB 34.6MB bios_grub
2 107MB 612MB 505MB ext4 Basic data partition
3 612MB 69.3GB 68.7GB ext4
4 69.3GB 86.5GB 17.2GB linux-swap(v1) Basic data partition msftdata
5 86.5GB 103GB 16.1GB ntfs Basic data partition msftdata
6 103GB 240GB 137GB ext4
$ sudo grub-install
Installing for x86_64-efi platform.
Installation finished. No error reported.
partition grub2 gpt mbr
asked Nov 3 '16 at 14:35
GriefGrief
1235
bumped to the homepage by Community♦ 1 min 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 |
I followed the very detailed guide for making hybrid MBR record (GPT/MBR) taken from here
Now, gdisk says I have hybrid mbr. But I can only boot in UEFI and cannot do that in BIOS (I use external hard drive). Seems that simple execution of grub-install installs only uefi part. I saw the discussion about requirement for protective entry to be the first on the disk, so I made it the first and that is not the root cause.
So the question is how to install GRUB so it would boot OS both being started from BIOS/MBR and UEFI/GPT?
$ sudo gdisk /dev/sdd
GPT fdisk (gdisk) version 1.0.1
Partition table scan:
MBR: hybrid
BSD: not present
APM: not present
GPT: present
Found valid GPT with hybrid MBR; using GPT.
Command (? for help): r
Recovery/transformation command (? for help): o
Disk size is 468862128 sectors (223.6 GiB)
MBR disk identifier: 0x7213C4A0
MBR partitions:
Number Boot Start Sector End Sector Status Code
1 1 208895 primary 0xEE
2 * 208896 1196031 primary 0x83
3 1196032 135413759 primary 0x83
4 200425472 468860927 primary 0x83
Recovery/transformation command (? for help): p
Disk /dev/sdd: 468862128 sectors, 223.6 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 21773ad9-3d43-4832-85b7-6c841d20ce75
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 468862094
Partitions will be aligned on 1-sector boundaries
Total free space is 62183 sectors (30.4 MiB)
Number Start (sector) End (sector) Size Code Name
1 63 80324 39.2 MiB EF00 Basic data partition
2 208896 1196031 482.0 MiB 8300 Basic data partition
3 1196032 135413759 64.0 GiB 8300
4 135413760 168968191 16.0 GiB 0700 Basic data partition
5 168968192 200425471 15.0 GiB 0700 Basic data partition
6 200425472 468860927 128.0 GiB 8300
7 81920 149503 33.0 MiB EF02
$ sudo parted /dev/sdd
GNU Parted 3.2
Using /dev/sdd
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: ATA OCZ-VECTOR150 (scsi)
Disk /dev/sdd: 240GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 32.3kB 41.1MB 41.1MB fat32 Basic data partition boot, esp
7 41.9MB 76.5MB 34.6MB bios_grub
2 107MB 612MB 505MB ext4 Basic data partition
3 612MB 69.3GB 68.7GB ext4
4 69.3GB 86.5GB 17.2GB linux-swap(v1) Basic data partition msftdata
5 86.5GB 103GB 16.1GB ntfs Basic data partition msftdata
6 103GB 240GB 137GB ext4
$ sudo grub-install
Installing for x86_64-efi platform.
Installation finished. No error reported.
partition grub2 gpt mbr
asked Nov 3 '16 at 14:35
GriefGrief
1235
bumped to the homepage by Community♦ 1 min ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
1
Oh, this question fixed my pentium 4. It wouldn't boot with a 3TB disk, and sparkylinux fixed it with that link on gdisk. :) I know the bios is old, but since I had a blank hard drive, I just put a new OS onto it, and worked around the non-support for GPT.
– marinara
Feb 9 at 16:26
add a comment |
I followed the very detailed guide for making hybrid MBR record (GPT/MBR) taken from here
Now, gdisk says I have hybrid mbr. But I can only boot in UEFI and cannot do that in BIOS (I use external hard drive). Seems that simple execution of grub-install installs only uefi part. I saw the discussion about requirement for protective entry to be the first on the disk, so I made it the first and that is not the root cause.
So the question is how to install GRUB so it would boot OS both being started from BIOS/MBR and UEFI/GPT?
$ sudo gdisk /dev/sdd
GPT fdisk (gdisk) version 1.0.1
Partition table scan:
MBR: hybrid
BSD: not present
APM: not present
GPT: present
Found valid GPT with hybrid MBR; using GPT.
Command (? for help): r
Recovery/transformation command (? for help): o
Disk size is 468862128 sectors (223.6 GiB)
MBR disk identifier: 0x7213C4A0
MBR partitions:
Number Boot Start Sector End Sector Status Code
1 1 208895 primary 0xEE
2 * 208896 1196031 primary 0x83
3 1196032 135413759 primary 0x83
4 200425472 468860927 primary 0x83
Recovery/transformation command (? for help): p
Disk /dev/sdd: 468862128 sectors, 223.6 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 21773ad9-3d43-4832-85b7-6c841d20ce75
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 468862094
Partitions will be aligned on 1-sector boundaries
Total free space is 62183 sectors (30.4 MiB)
Number Start (sector) End (sector) Size Code Name
1 63 80324 39.2 MiB EF00 Basic data partition
2 208896 1196031 482.0 MiB 8300 Basic data partition
3 1196032 135413759 64.0 GiB 8300
4 135413760 168968191 16.0 GiB 0700 Basic data partition
5 168968192 200425471 15.0 GiB 0700 Basic data partition
6 200425472 468860927 128.0 GiB 8300
7 81920 149503 33.0 MiB EF02
$ sudo parted /dev/sdd
GNU Parted 3.2
Using /dev/sdd
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: ATA OCZ-VECTOR150 (scsi)
Disk /dev/sdd: 240GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 32.3kB 41.1MB 41.1MB fat32 Basic data partition boot, esp
7 41.9MB 76.5MB 34.6MB bios_grub
2 107MB 612MB 505MB ext4 Basic data partition
3 612MB 69.3GB 68.7GB ext4
4 69.3GB 86.5GB 17.2GB linux-swap(v1) Basic data partition msftdata
5 86.5GB 103GB 16.1GB ntfs Basic data partition msftdata
6 103GB 240GB 137GB ext4
$ sudo grub-install
Installing for x86_64-efi platform.
Installation finished. No error reported.
partition grub2 gpt mbr
asked Nov 3 '16 at 14:35
GriefGrief
1235
I followed the very detailed guide for making hybrid MBR record (GPT/MBR) taken from here
Now, gdisk says I have hybrid mbr. But I can only boot in UEFI and cannot do that in BIOS (I use external hard drive). Seems that simple execution of grub-install installs only uefi part. I saw the discussion about requirement for protective entry to be the first on the disk, so I made it the first and that is not the root cause.
So the question is how to install GRUB so it would boot OS both being started from BIOS/MBR and UEFI/GPT?
$ sudo gdisk /dev/sdd
GPT fdisk (gdisk) version 1.0.1
Partition table scan:
MBR: hybrid
BSD: not present
APM: not present
GPT: present
Found valid GPT with hybrid MBR; using GPT.
Command (? for help): r
Recovery/transformation command (? for help): o
Disk size is 468862128 sectors (223.6 GiB)
MBR disk identifier: 0x7213C4A0
MBR partitions:
Number Boot Start Sector End Sector Status Code
1 1 208895 primary 0xEE
2 * 208896 1196031 primary 0x83
3 1196032 135413759 primary 0x83
4 200425472 468860927 primary 0x83
Recovery/transformation command (? for help): p
Disk /dev/sdd: 468862128 sectors, 223.6 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 21773ad9-3d43-4832-85b7-6c841d20ce75
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 468862094
Partitions will be aligned on 1-sector boundaries
Total free space is 62183 sectors (30.4 MiB)
Number Start (sector) End (sector) Size Code Name
1 63 80324 39.2 MiB EF00 Basic data partition
2 208896 1196031 482.0 MiB 8300 Basic data partition
3 1196032 135413759 64.0 GiB 8300
4 135413760 168968191 16.0 GiB 0700 Basic data partition
5 168968192 200425471 15.0 GiB 0700 Basic data partition
6 200425472 468860927 128.0 GiB 8300
7 81920 149503 33.0 MiB EF02
$ sudo parted /dev/sdd
GNU Parted 3.2
Using /dev/sdd
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: ATA OCZ-VECTOR150 (scsi)
Disk /dev/sdd: 240GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 32.3kB 41.1MB 41.1MB fat32 Basic data partition boot, esp
7 41.9MB 76.5MB 34.6MB bios_grub
2 107MB 612MB 505MB ext4 Basic data partition
3 612MB 69.3GB 68.7GB ext4
4 69.3GB 86.5GB 17.2GB linux-swap(v1) Basic data partition msftdata
5 86.5GB 103GB 16.1GB ntfs Basic data partition msftdata
6 103GB 240GB 137GB ext4
$ sudo grub-install
Installing for x86_64-efi platform.
Installation finished. No error reported.
partition grub2 gpt mbr
partition grub2 gpt mbr
asked Nov 3 '16 at 14:35
GriefGrief
1235
asked Nov 3 '16 at 14:35
GriefGrief
1235
edited Nov 4 '16 at 0:19
Grief
asked Nov 3 '16 at 14:35
GriefGrief
1235
asked Nov 3 '16 at 14:35
GriefGrief
1235
asked Nov 3 '16 at 14:35
GriefGrief
1235
1235
bumped to the homepage by Community♦ 1 min 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♦ 1 min ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
1
Oh, this question fixed my pentium 4. It wouldn't boot with a 3TB disk, and sparkylinux fixed it with that link on gdisk. :) I know the bios is old, but since I had a blank hard drive, I just put a new OS onto it, and worked around the non-support for GPT.
– marinara
Feb 9 at 16:26
add a comment |
1
Oh, this question fixed my pentium 4. It wouldn't boot with a 3TB disk, and sparkylinux fixed it with that link on gdisk. :) I know the bios is old, but since I had a blank hard drive, I just put a new OS onto it, and worked around the non-support for GPT.
– marinara
Feb 9 at 16:26
1
1
Oh, this question fixed my pentium 4. It wouldn't boot with a 3TB disk, and sparkylinux fixed it with that link on gdisk. :) I know the bios is old, but since I had a blank hard drive, I just put a new OS onto it, and worked around the non-support for GPT.
– marinara
Feb 9 at 16:26
Oh, this question fixed my pentium 4. It wouldn't boot with a 3TB disk, and sparkylinux fixed it with that link on gdisk. :) I know the bios is old, but since I had a blank hard drive, I just put a new OS onto it, and worked around the non-support for GPT.
– marinara
Feb 9 at 16:26
add a comment |
1 Answer
1
active
oldest
votes
How to install GRUB so it would boot OS both being started from BIOS/MBR and UEFI/GPT?
You should create a bios boot partition labled bios_grub. This partition need to be created before GRUB installation .
For GRUB to boot from a GPT-partitioned disk on a BIOS-based system, a BIOS boot partition is required. Please note that this partition is unrelated to the /boot mountpoint, and will be used by GRUB directly. Do not create a filesystem on it, and do not mount it.
How to create the bios boot partition? What is the minimum size?
When creating a BIOS Boot Partition on a GPT system, you should make sure that it is at least 31 KiB in size. (GPT-formatted disks are not usually particularly small, so we recommend that you make it larger than the bare minimum, such as 1 MiB, to allow plenty of room for growth.) You must also make sure that it has the proper partition type. Using GNU Parted, you can set this using a command such as the following:
parted /dev/disk set partition-number bios_grub on
answered Nov 3 '16 at 14:59
GAD3RGAD3R
26.9k1756111
I've created this partition, but that didn't the trick. Same result - system is booting with UEFI but not with BIOS. I've updated the question with some output, maybe it would be helpful
– Grief
Nov 4 '16 at 0:08
From your Bios settings switch to Legacy boot
– GAD3R
Nov 4 '16 at 7:30
Doesn't help either.
– Grief
Nov 4 '16 at 17:02
add a comment |
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1 Answer
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How to install GRUB so it would boot OS both being started from BIOS/MBR and UEFI/GPT?
You should create a bios boot partition labled bios_grub. This partition need to be created before GRUB installation .
For GRUB to boot from a GPT-partitioned disk on a BIOS-based system, a BIOS boot partition is required. Please note that this partition is unrelated to the /boot mountpoint, and will be used by GRUB directly. Do not create a filesystem on it, and do not mount it.
How to create the bios boot partition? What is the minimum size?
When creating a BIOS Boot Partition on a GPT system, you should make sure that it is at least 31 KiB in size. (GPT-formatted disks are not usually particularly small, so we recommend that you make it larger than the bare minimum, such as 1 MiB, to allow plenty of room for growth.) You must also make sure that it has the proper partition type. Using GNU Parted, you can set this using a command such as the following:
parted /dev/disk set partition-number bios_grub on
answered Nov 3 '16 at 14:59
GAD3RGAD3R
26.9k1756111
I've created this partition, but that didn't the trick. Same result - system is booting with UEFI but not with BIOS. I've updated the question with some output, maybe it would be helpful
– Grief
Nov 4 '16 at 0:08
From your Bios settings switch to Legacy boot
– GAD3R
Nov 4 '16 at 7:30
Doesn't help either.
– Grief
Nov 4 '16 at 17:02
add a comment |
How to install GRUB so it would boot OS both being started from BIOS/MBR and UEFI/GPT?
You should create a bios boot partition labled bios_grub. This partition need to be created before GRUB installation .
For GRUB to boot from a GPT-partitioned disk on a BIOS-based system, a BIOS boot partition is required. Please note that this partition is unrelated to the /boot mountpoint, and will be used by GRUB directly. Do not create a filesystem on it, and do not mount it.
How to create the bios boot partition? What is the minimum size?
When creating a BIOS Boot Partition on a GPT system, you should make sure that it is at least 31 KiB in size. (GPT-formatted disks are not usually particularly small, so we recommend that you make it larger than the bare minimum, such as 1 MiB, to allow plenty of room for growth.) You must also make sure that it has the proper partition type. Using GNU Parted, you can set this using a command such as the following:
parted /dev/disk set partition-number bios_grub on
answered Nov 3 '16 at 14:59
GAD3RGAD3R
26.9k1756111
I've created this partition, but that didn't the trick. Same result - system is booting with UEFI but not with BIOS. I've updated the question with some output, maybe it would be helpful
– Grief
Nov 4 '16 at 0:08
From your Bios settings switch to Legacy boot
– GAD3R
Nov 4 '16 at 7:30
Doesn't help either.
– Grief
Nov 4 '16 at 17:02
add a comment |
How to install GRUB so it would boot OS both being started from BIOS/MBR and UEFI/GPT?
You should create a bios boot partition labled bios_grub. This partition need to be created before GRUB installation .
For GRUB to boot from a GPT-partitioned disk on a BIOS-based system, a BIOS boot partition is required. Please note that this partition is unrelated to the /boot mountpoint, and will be used by GRUB directly. Do not create a filesystem on it, and do not mount it.
How to create the bios boot partition? What is the minimum size?
When creating a BIOS Boot Partition on a GPT system, you should make sure that it is at least 31 KiB in size. (GPT-formatted disks are not usually particularly small, so we recommend that you make it larger than the bare minimum, such as 1 MiB, to allow plenty of room for growth.) You must also make sure that it has the proper partition type. Using GNU Parted, you can set this using a command such as the following:
parted /dev/disk set partition-number bios_grub on
answered Nov 3 '16 at 14:59
GAD3RGAD3R
26.9k1756111
How to install GRUB so it would boot OS both being started from BIOS/MBR and UEFI/GPT?
You should create a bios boot partition labled bios_grub. This partition need to be created before GRUB installation .
For GRUB to boot from a GPT-partitioned disk on a BIOS-based system, a BIOS boot partition is required. Please note that this partition is unrelated to the /boot mountpoint, and will be used by GRUB directly. Do not create a filesystem on it, and do not mount it.
How to create the bios boot partition? What is the minimum size?
When creating a BIOS Boot Partition on a GPT system, you should make sure that it is at least 31 KiB in size. (GPT-formatted disks are not usually particularly small, so we recommend that you make it larger than the bare minimum, such as 1 MiB, to allow plenty of room for growth.) You must also make sure that it has the proper partition type. Using GNU Parted, you can set this using a command such as the following:
parted /dev/disk set partition-number bios_grub on
answered Nov 3 '16 at 14:59
GAD3RGAD3R
26.9k1756111
answered Nov 3 '16 at 14:59
GAD3RGAD3R
26.9k1756111
answered Nov 3 '16 at 14:59
GAD3RGAD3R
26.9k1756111
answered Nov 3 '16 at 14:59
GAD3RGAD3R
26.9k1756111
26.9k1756111
I've created this partition, but that didn't the trick. Same result - system is booting with UEFI but not with BIOS. I've updated the question with some output, maybe it would be helpful
– Grief
Nov 4 '16 at 0:08
From your Bios settings switch to Legacy boot
– GAD3R
Nov 4 '16 at 7:30
Doesn't help either.
– Grief
Nov 4 '16 at 17:02
add a comment |
I've created this partition, but that didn't the trick. Same result - system is booting with UEFI but not with BIOS. I've updated the question with some output, maybe it would be helpful
– Grief
Nov 4 '16 at 0:08
From your Bios settings switch to Legacy boot
– GAD3R
Nov 4 '16 at 7:30
Doesn't help either.
– Grief
Nov 4 '16 at 17:02
I've created this partition, but that didn't the trick. Same result - system is booting with UEFI but not with BIOS. I've updated the question with some output, maybe it would be helpful
– Grief
Nov 4 '16 at 0:08
I've created this partition, but that didn't the trick. Same result - system is booting with UEFI but not with BIOS. I've updated the question with some output, maybe it would be helpful
– Grief
Nov 4 '16 at 0:08
From your Bios settings switch to Legacy boot
– GAD3R
Nov 4 '16 at 7:30
From your Bios settings switch to Legacy boot
– GAD3R
Nov 4 '16 at 7:30
Doesn't help either.
– Grief
Nov 4 '16 at 17:02
Doesn't help either.
– Grief
Nov 4 '16 at 17:02
add a comment |
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1
Oh, this question fixed my pentium 4. It wouldn't boot with a 3TB disk, and sparkylinux fixed it with that link on gdisk. :) I know the bios is old, but since I had a blank hard drive, I just put a new OS onto it, and worked around the non-support for GPT.
– marinara
Feb 9 at 16:26