Do I need an EFI partition for each 18.04 ubuntu I have on my HD?
5
I had to create an EFI partition to install ubuntu 18.04. Now I want to create another boot on the same HD with 18.04 again. Do I need to create another EFI partition?
system-installation uefi
asked 2 days ago
Vitor AbellaVitor Abella
2,929113164
add a comment |
5
I had to create an EFI partition to install ubuntu 18.04. Now I want to create another boot on the same HD with 18.04 again. Do I need to create another EFI partition?
system-installation uefi
asked 2 days ago
Vitor AbellaVitor Abella
2,929113164
So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
2 days ago
yes, @Pilot6 . The reason is irrelevant, but "My old 18.04 partition is going to fail soon due to bad block and Im moving to another one. As HP limits the number of partitions I can have, I care about creating new partitions".
– Vitor Abella
2 days ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
2 days ago
@VitorAbella: If you're having accumulating bad blocks and impending data loss, you need to replace the entire disk, not just a single partition. Reserved blocks are shared across the whole drive.
– Ben Voigt
2 days ago
As always, I'd suggest reading this as a primer on UEFI. And then from a Ubuntu perspective you can either have multiple GRUBs managed by EFI, or one GRUB with muliple OSes managed by GRUB. But only ever the one ESP.
– Bob
2 days ago
add a comment |
5
5
5
I had to create an EFI partition to install ubuntu 18.04. Now I want to create another boot on the same HD with 18.04 again. Do I need to create another EFI partition?
system-installation uefi
asked 2 days ago
Vitor AbellaVitor Abella
2,929113164
I had to create an EFI partition to install ubuntu 18.04. Now I want to create another boot on the same HD with 18.04 again. Do I need to create another EFI partition?
system-installation uefi
system-installation uefi
asked 2 days ago
Vitor AbellaVitor Abella
2,929113164
asked 2 days ago
Vitor AbellaVitor Abella
2,929113164
asked 2 days ago
Vitor AbellaVitor Abella
2,929113164
asked 2 days ago
Vitor AbellaVitor Abella
2,929113164
asked 2 days ago
Vitor AbellaVitor Abella
2,929113164
2,929113164
So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
2 days ago
yes, @Pilot6 . The reason is irrelevant, but "My old 18.04 partition is going to fail soon due to bad block and Im moving to another one. As HP limits the number of partitions I can have, I care about creating new partitions".
– Vitor Abella
2 days ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
2 days ago
@VitorAbella: If you're having accumulating bad blocks and impending data loss, you need to replace the entire disk, not just a single partition. Reserved blocks are shared across the whole drive.
– Ben Voigt
2 days ago
As always, I'd suggest reading this as a primer on UEFI. And then from a Ubuntu perspective you can either have multiple GRUBs managed by EFI, or one GRUB with muliple OSes managed by GRUB. But only ever the one ESP.
– Bob
2 days ago
add a comment |
So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
2 days ago
yes, @Pilot6 . The reason is irrelevant, but "My old 18.04 partition is going to fail soon due to bad block and Im moving to another one. As HP limits the number of partitions I can have, I care about creating new partitions".
– Vitor Abella
2 days ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
2 days ago
@VitorAbella: If you're having accumulating bad blocks and impending data loss, you need to replace the entire disk, not just a single partition. Reserved blocks are shared across the whole drive.
– Ben Voigt
2 days ago
As always, I'd suggest reading this as a primer on UEFI. And then from a Ubuntu perspective you can either have multiple GRUBs managed by EFI, or one GRUB with muliple OSes managed by GRUB. But only ever the one ESP.
– Bob
2 days ago
So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
2 days ago
So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
2 days ago
yes, @Pilot6 . The reason is irrelevant, but "My old 18.04 partition is going to fail soon due to bad block and Im moving to another one. As HP limits the number of partitions I can have, I care about creating new partitions".
– Vitor Abella
2 days ago
yes, @Pilot6 . The reason is irrelevant, but "My old 18.04 partition is going to fail soon due to bad block and Im moving to another one. As HP limits the number of partitions I can have, I care about creating new partitions".
– Vitor Abella
2 days ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
2 days ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
2 days ago
@VitorAbella: If you're having accumulating bad blocks and impending data loss, you need to replace the entire disk, not just a single partition. Reserved blocks are shared across the whole drive.
– Ben Voigt
2 days ago
@VitorAbella: If you're having accumulating bad blocks and impending data loss, you need to replace the entire disk, not just a single partition. Reserved blocks are shared across the whole drive.
– Ben Voigt
2 days ago
As always, I'd suggest reading this as a primer on UEFI. And then from a Ubuntu perspective you can either have multiple GRUBs managed by EFI, or one GRUB with muliple OSes managed by GRUB. But only ever the one ESP.
– Bob
2 days ago
As always, I'd suggest reading this as a primer on UEFI. And then from a Ubuntu perspective you can either have multiple GRUBs managed by EFI, or one GRUB with muliple OSes managed by GRUB. But only ever the one ESP.
– Bob
2 days ago
add a comment |
2 Answers
2
active
oldest
votes
6
No, you only need one EFI partition. My dual-boot system shares the one partition between Windows and Ubuntu.
You can see it here with all the goofy Windows partitions. (My / partition is on a different physical drive)
answered 2 days ago
Organic MarbleOrganic Marble
11.5k63459
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
2 days ago
That's correct.
– Pilot6
2 days ago
I've only done it once. I created a new EFI partition, and the installer ignored it and used the existing Windows one.
– Organic Marble
2 days ago
@OrganicMarble That's not an EFI problem per se. Some computer's BIOSes always boot Windows if a Windows EFI binary is present, regardless of the user's boot choices. This is broken behavior, but since nearly all of the affected computers are several years old now, they're unlikely to be fixed.
– Michael Hampton
2 days ago
2
@OrganicMarble Oh, OK, I see what you mean. It doesn't really matter though, you can have as many EFI partitions as you want. If it bothers you, or you need the disk to be removable, you can move the relevant files from one EFI partition to the other (though you might have to tweak the boot order in the BIOS afterward).
– Michael Hampton
2 days ago
|
show 3 more comments
4
You need only one EFI partition for a computer in general.
No matter how many OS you have.
You may need multiple EFI partitions only in some special cases when you swap disks, change boot device in UEFI, etc.
answered 2 days ago
Pilot6Pilot6
53.5k15109198
add a comment |
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2 Answers
2
active
oldest
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2 Answers
2
active
oldest
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active
oldest
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oldest
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6
No, you only need one EFI partition. My dual-boot system shares the one partition between Windows and Ubuntu.
You can see it here with all the goofy Windows partitions. (My / partition is on a different physical drive)
answered 2 days ago
Organic MarbleOrganic Marble
11.5k63459
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
2 days ago
That's correct.
– Pilot6
2 days ago
I've only done it once. I created a new EFI partition, and the installer ignored it and used the existing Windows one.
– Organic Marble
2 days ago
@OrganicMarble That's not an EFI problem per se. Some computer's BIOSes always boot Windows if a Windows EFI binary is present, regardless of the user's boot choices. This is broken behavior, but since nearly all of the affected computers are several years old now, they're unlikely to be fixed.
– Michael Hampton
2 days ago
2
@OrganicMarble Oh, OK, I see what you mean. It doesn't really matter though, you can have as many EFI partitions as you want. If it bothers you, or you need the disk to be removable, you can move the relevant files from one EFI partition to the other (though you might have to tweak the boot order in the BIOS afterward).
– Michael Hampton
2 days ago
|
show 3 more comments
6
No, you only need one EFI partition. My dual-boot system shares the one partition between Windows and Ubuntu.
You can see it here with all the goofy Windows partitions. (My / partition is on a different physical drive)
answered 2 days ago
Organic MarbleOrganic Marble
11.5k63459
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
2 days ago
That's correct.
– Pilot6
2 days ago
I've only done it once. I created a new EFI partition, and the installer ignored it and used the existing Windows one.
– Organic Marble
2 days ago
@OrganicMarble That's not an EFI problem per se. Some computer's BIOSes always boot Windows if a Windows EFI binary is present, regardless of the user's boot choices. This is broken behavior, but since nearly all of the affected computers are several years old now, they're unlikely to be fixed.
– Michael Hampton
2 days ago
2
@OrganicMarble Oh, OK, I see what you mean. It doesn't really matter though, you can have as many EFI partitions as you want. If it bothers you, or you need the disk to be removable, you can move the relevant files from one EFI partition to the other (though you might have to tweak the boot order in the BIOS afterward).
– Michael Hampton
2 days ago
|
show 3 more comments
6
6
6
No, you only need one EFI partition. My dual-boot system shares the one partition between Windows and Ubuntu.
You can see it here with all the goofy Windows partitions. (My / partition is on a different physical drive)
answered 2 days ago
Organic MarbleOrganic Marble
11.5k63459
No, you only need one EFI partition. My dual-boot system shares the one partition between Windows and Ubuntu.
You can see it here with all the goofy Windows partitions. (My / partition is on a different physical drive)
answered 2 days ago
Organic MarbleOrganic Marble
11.5k63459
edited 2 days ago
answered 2 days ago
Organic MarbleOrganic Marble
11.5k63459
answered 2 days ago
Organic MarbleOrganic Marble
11.5k63459
answered 2 days ago
Organic MarbleOrganic Marble
11.5k63459
11.5k63459
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
2 days ago
That's correct.
– Pilot6
2 days ago
I've only done it once. I created a new EFI partition, and the installer ignored it and used the existing Windows one.
– Organic Marble
2 days ago
@OrganicMarble That's not an EFI problem per se. Some computer's BIOSes always boot Windows if a Windows EFI binary is present, regardless of the user's boot choices. This is broken behavior, but since nearly all of the affected computers are several years old now, they're unlikely to be fixed.
– Michael Hampton
2 days ago
2
@OrganicMarble Oh, OK, I see what you mean. It doesn't really matter though, you can have as many EFI partitions as you want. If it bothers you, or you need the disk to be removable, you can move the relevant files from one EFI partition to the other (though you might have to tweak the boot order in the BIOS afterward).
– Michael Hampton
2 days ago
|
show 3 more comments
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
2 days ago
That's correct.
– Pilot6
2 days ago
I've only done it once. I created a new EFI partition, and the installer ignored it and used the existing Windows one.
– Organic Marble
2 days ago
@OrganicMarble That's not an EFI problem per se. Some computer's BIOSes always boot Windows if a Windows EFI binary is present, regardless of the user's boot choices. This is broken behavior, but since nearly all of the affected computers are several years old now, they're unlikely to be fixed.
– Michael Hampton
2 days ago
2
@OrganicMarble Oh, OK, I see what you mean. It doesn't really matter though, you can have as many EFI partitions as you want. If it bothers you, or you need the disk to be removable, you can move the relevant files from one EFI partition to the other (though you might have to tweak the boot order in the BIOS afterward).
– Michael Hampton
2 days ago
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
2 days ago
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
2 days ago
That's correct.
– Pilot6
2 days ago
That's correct.
– Pilot6
2 days ago
I've only done it once. I created a new EFI partition, and the installer ignored it and used the existing Windows one.
– Organic Marble
2 days ago
I've only done it once. I created a new EFI partition, and the installer ignored it and used the existing Windows one.
– Organic Marble
2 days ago
@OrganicMarble That's not an EFI problem per se. Some computer's BIOSes always boot Windows if a Windows EFI binary is present, regardless of the user's boot choices. This is broken behavior, but since nearly all of the affected computers are several years old now, they're unlikely to be fixed.
– Michael Hampton
2 days ago
@OrganicMarble That's not an EFI problem per se. Some computer's BIOSes always boot Windows if a Windows EFI binary is present, regardless of the user's boot choices. This is broken behavior, but since nearly all of the affected computers are several years old now, they're unlikely to be fixed.
– Michael Hampton
2 days ago
2
2
@OrganicMarble Oh, OK, I see what you mean. It doesn't really matter though, you can have as many EFI partitions as you want. If it bothers you, or you need the disk to be removable, you can move the relevant files from one EFI partition to the other (though you might have to tweak the boot order in the BIOS afterward).
– Michael Hampton
2 days ago
@OrganicMarble Oh, OK, I see what you mean. It doesn't really matter though, you can have as many EFI partitions as you want. If it bothers you, or you need the disk to be removable, you can move the relevant files from one EFI partition to the other (though you might have to tweak the boot order in the BIOS afterward).
– Michael Hampton
2 days ago
|
show 3 more comments
4
You need only one EFI partition for a computer in general.
No matter how many OS you have.
You may need multiple EFI partitions only in some special cases when you swap disks, change boot device in UEFI, etc.
answered 2 days ago
Pilot6Pilot6
53.5k15109198
add a comment |
4
You need only one EFI partition for a computer in general.
No matter how many OS you have.
You may need multiple EFI partitions only in some special cases when you swap disks, change boot device in UEFI, etc.
answered 2 days ago
Pilot6Pilot6
53.5k15109198
add a comment |
4
4
4
You need only one EFI partition for a computer in general.
No matter how many OS you have.
You may need multiple EFI partitions only in some special cases when you swap disks, change boot device in UEFI, etc.
answered 2 days ago
Pilot6Pilot6
53.5k15109198
You need only one EFI partition for a computer in general.
No matter how many OS you have.
You may need multiple EFI partitions only in some special cases when you swap disks, change boot device in UEFI, etc.
answered 2 days ago
Pilot6Pilot6
53.5k15109198
answered 2 days ago
Pilot6Pilot6
53.5k15109198
answered 2 days ago
Pilot6Pilot6
53.5k15109198
answered 2 days ago
Pilot6Pilot6
53.5k15109198
53.5k15109198
add a comment |
add a comment |
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So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
2 days ago
yes, @Pilot6 . The reason is irrelevant, but "My old 18.04 partition is going to fail soon due to bad block and Im moving to another one. As HP limits the number of partitions I can have, I care about creating new partitions".
– Vitor Abella
2 days ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
2 days ago
@VitorAbella: If you're having accumulating bad blocks and impending data loss, you need to replace the entire disk, not just a single partition. Reserved blocks are shared across the whole drive.
– Ben Voigt
2 days ago
As always, I'd suggest reading this as a primer on UEFI. And then from a Ubuntu perspective you can either have multiple GRUBs managed by EFI, or one GRUB with muliple OSes managed by GRUB. But only ever the one ESP.
– Bob
2 days ago