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Do I need an EFI partition for each 18.04 ubuntu I have on my HD?
Grub2 EFI: Where is my EFI partition?Which partition to select as device for boot loader in an EFI mode install?Partition for dual boot UEFI for Windows and UbuntuHow to change my /boot/efi mount partition?Installing Ubuntu 14.04 on EFI SystemDoes Ubuntu need this EFI partition?update-grub does not update /boot/efi/EFI/ubuntu/grub.cfgEFI boot partitionhow to create EFI partition from scratchEfi issue Ubuntu 18 after deleting windows and efi partition
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 9 hours ago
Vitor AbellaVitor Abella
2,919113164
add a comment |
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 9 hours ago
Vitor AbellaVitor Abella
2,919113164
So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
9 hours 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
8 hours ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
8 hours 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
38 mins 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
18 mins ago
add a comment |
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 9 hours ago
Vitor AbellaVitor Abella
2,919113164
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 9 hours ago
Vitor AbellaVitor Abella
2,919113164
asked 9 hours ago
Vitor AbellaVitor Abella
2,919113164
asked 9 hours ago
Vitor AbellaVitor Abella
2,919113164
asked 9 hours ago
Vitor AbellaVitor Abella
2,919113164
asked 9 hours ago
Vitor AbellaVitor Abella
2,919113164
2,919113164
So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
9 hours 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
8 hours ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
8 hours 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
38 mins 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
18 mins ago
add a comment |
So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
9 hours 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
8 hours ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
8 hours 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
38 mins 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
18 mins ago
So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
9 hours ago
So you will have two instances of Ubuntu 18.04 on one HDD?
– Pilot6
9 hours 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
8 hours 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
8 hours ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
8 hours ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
8 hours 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
38 mins 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
38 mins 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
18 mins 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
18 mins ago
add a comment |
2 Answers
2
active
oldest
votes
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 9 hours ago
Organic MarbleOrganic Marble
11.4k63459
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
9 hours ago
That's correct.
– Pilot6
9 hours 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
9 hours 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
1 hour ago
1
@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
1 hour ago
|
show 3 more comments
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 9 hours ago
Pilot6Pilot6
53.5k15109198
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
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 9 hours ago
Organic MarbleOrganic Marble
11.4k63459
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
9 hours ago
That's correct.
– Pilot6
9 hours 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
9 hours 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
1 hour ago
1
@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
1 hour ago
|
show 3 more comments
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 9 hours ago
Organic MarbleOrganic Marble
11.4k63459
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
9 hours ago
That's correct.
– Pilot6
9 hours 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
9 hours 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
1 hour ago
1
@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
1 hour ago
|
show 3 more comments
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 9 hours ago
Organic MarbleOrganic Marble
11.4k63459
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 9 hours ago
Organic MarbleOrganic Marble
11.4k63459
edited 9 hours ago
answered 9 hours ago
Organic MarbleOrganic Marble
11.4k63459
answered 9 hours ago
Organic MarbleOrganic Marble
11.4k63459
answered 9 hours ago
Organic MarbleOrganic Marble
11.4k63459
11.4k63459
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
9 hours ago
That's correct.
– Pilot6
9 hours 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
9 hours 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
1 hour ago
1
@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
1 hour ago
|
show 3 more comments
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
9 hours ago
That's correct.
– Pilot6
9 hours 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
9 hours 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
1 hour ago
1
@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
1 hour ago
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
9 hours ago
so, when I install i choose my ubuntu efi partition that I already created?
– Vitor Abella
9 hours ago
That's correct.
– Pilot6
9 hours ago
That's correct.
– Pilot6
9 hours 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
9 hours 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
9 hours 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
1 hour 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
1 hour ago
1
1
@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
1 hour 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
1 hour ago
|
show 3 more comments
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 9 hours ago
Pilot6Pilot6
53.5k15109198
add a comment |
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 9 hours ago
Pilot6Pilot6
53.5k15109198
add a comment |
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 9 hours 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 9 hours ago
Pilot6Pilot6
53.5k15109198
answered 9 hours ago
Pilot6Pilot6
53.5k15109198
answered 9 hours ago
Pilot6Pilot6
53.5k15109198
answered 9 hours 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
9 hours 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
8 hours ago
HP doesn't limit the number of partitions. MBR maybe does.
– Pilot6
8 hours 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
38 mins 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
18 mins ago