Install grub2 on LVM partition
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I would like to install grub2 on an LVM partition, i.e., not the MBR. I have a BIOS partition (not GPT) /dev/sda2 which contains an LVM volume group with two logical volumes. One (/dev/vg/boot) is formatted with ext4 and mounted as /boot.
Running grub-install --force /dev/sda2 yields
Installing for i386-pc platform.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
grub-install: error: unable to identify a filesystem in hostdisk//dev/sda; safety check can't be performed.
Running grub-install --force /dev/vg/boot yields
Installing for i386-pc platform.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
grub-install: warning: File system 'ext2' doesn't support embedding.
grub-install: warning: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged..
grub-install: error: diskfilter writes are not supported.
How can grub2 be installed in this setting?
grub2
asked Feb 24 at 2:23
MarkusMMarkusM
12
add a comment |
I would like to install grub2 on an LVM partition, i.e., not the MBR. I have a BIOS partition (not GPT) /dev/sda2 which contains an LVM volume group with two logical volumes. One (/dev/vg/boot) is formatted with ext4 and mounted as /boot.
Running grub-install --force /dev/sda2 yields
Installing for i386-pc platform.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
grub-install: error: unable to identify a filesystem in hostdisk//dev/sda; safety check can't be performed.
Running grub-install --force /dev/vg/boot yields
Installing for i386-pc platform.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
grub-install: warning: File system 'ext2' doesn't support embedding.
grub-install: warning: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged..
grub-install: error: diskfilter writes are not supported.
How can grub2 be installed in this setting?
grub2
asked Feb 24 at 2:23
MarkusMMarkusM
12
1
You can't, it's not supported
– 炸鱼薯条德里克
Feb 24 at 2:35
Why not? grub2 supports LVM and installing to a partition instead of the MBR is supported too.
– MarkusM
Feb 24 at 2:37
grub2 can load a kernel from an LVM logical volume, but it cannot be installed in logical volume.
– Emmanuel Rosa
Feb 24 at 3:06
Apparently, it is possible to install grub2 in the MBR and have it access an LVM logical volume (/boot) inside a BIOS LUKS partition: pavelkogan.com/2014/05/23/luks-full-disk-encryption. My understanding is that in this case, grub2 resides after the MBR and before the first partition. I am wondering why grub2 cannot be installed inside a partition. Is there no possibility to reserve some space at the beginning of a BIOS LUKS or LVM partition where grub2 can reside?
– MarkusM
Feb 24 at 15:02
I tried different things and couldn't make it work. After all it seems it is not supported as you said.
– MarkusM
Feb 24 at 22:55
add a comment |
I would like to install grub2 on an LVM partition, i.e., not the MBR. I have a BIOS partition (not GPT) /dev/sda2 which contains an LVM volume group with two logical volumes. One (/dev/vg/boot) is formatted with ext4 and mounted as /boot.
Running grub-install --force /dev/sda2 yields
Installing for i386-pc platform.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
grub-install: error: unable to identify a filesystem in hostdisk//dev/sda; safety check can't be performed.
Running grub-install --force /dev/vg/boot yields
Installing for i386-pc platform.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
grub-install: warning: File system 'ext2' doesn't support embedding.
grub-install: warning: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged..
grub-install: error: diskfilter writes are not supported.
How can grub2 be installed in this setting?
grub2
asked Feb 24 at 2:23
MarkusMMarkusM
12
I would like to install grub2 on an LVM partition, i.e., not the MBR. I have a BIOS partition (not GPT) /dev/sda2 which contains an LVM volume group with two logical volumes. One (/dev/vg/boot) is formatted with ext4 and mounted as /boot.
Running grub-install --force /dev/sda2 yields
Installing for i386-pc platform.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
grub-install: error: unable to identify a filesystem in hostdisk//dev/sda; safety check can't be performed.
Running grub-install --force /dev/vg/boot yields
Installing for i386-pc platform.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
grub-install: warning: File system 'ext2' doesn't support embedding.
grub-install: warning: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged..
grub-install: error: diskfilter writes are not supported.
How can grub2 be installed in this setting?
grub2
grub2
asked Feb 24 at 2:23
MarkusMMarkusM
12
asked Feb 24 at 2:23
MarkusMMarkusM
12
edited Feb 24 at 20:40
MarkusM
asked Feb 24 at 2:23
MarkusMMarkusM
12
asked Feb 24 at 2:23
MarkusMMarkusM
12
asked Feb 24 at 2:23
MarkusMMarkusM
12
12
1
You can't, it's not supported
– 炸鱼薯条德里克
Feb 24 at 2:35
Why not? grub2 supports LVM and installing to a partition instead of the MBR is supported too.
– MarkusM
Feb 24 at 2:37
grub2 can load a kernel from an LVM logical volume, but it cannot be installed in logical volume.
– Emmanuel Rosa
Feb 24 at 3:06
Apparently, it is possible to install grub2 in the MBR and have it access an LVM logical volume (/boot) inside a BIOS LUKS partition: pavelkogan.com/2014/05/23/luks-full-disk-encryption. My understanding is that in this case, grub2 resides after the MBR and before the first partition. I am wondering why grub2 cannot be installed inside a partition. Is there no possibility to reserve some space at the beginning of a BIOS LUKS or LVM partition where grub2 can reside?
– MarkusM
Feb 24 at 15:02
I tried different things and couldn't make it work. After all it seems it is not supported as you said.
– MarkusM
Feb 24 at 22:55
add a comment |
1
You can't, it's not supported
– 炸鱼薯条德里克
Feb 24 at 2:35
Why not? grub2 supports LVM and installing to a partition instead of the MBR is supported too.
– MarkusM
Feb 24 at 2:37
grub2 can load a kernel from an LVM logical volume, but it cannot be installed in logical volume.
– Emmanuel Rosa
Feb 24 at 3:06
Apparently, it is possible to install grub2 in the MBR and have it access an LVM logical volume (/boot) inside a BIOS LUKS partition: pavelkogan.com/2014/05/23/luks-full-disk-encryption. My understanding is that in this case, grub2 resides after the MBR and before the first partition. I am wondering why grub2 cannot be installed inside a partition. Is there no possibility to reserve some space at the beginning of a BIOS LUKS or LVM partition where grub2 can reside?
– MarkusM
Feb 24 at 15:02
I tried different things and couldn't make it work. After all it seems it is not supported as you said.
– MarkusM
Feb 24 at 22:55
1
1
You can't, it's not supported
– 炸鱼薯条德里克
Feb 24 at 2:35
You can't, it's not supported
– 炸鱼薯条德里克
Feb 24 at 2:35
Why not? grub2 supports LVM and installing to a partition instead of the MBR is supported too.
– MarkusM
Feb 24 at 2:37
Why not? grub2 supports LVM and installing to a partition instead of the MBR is supported too.
– MarkusM
Feb 24 at 2:37
grub2 can load a kernel from an LVM logical volume, but it cannot be installed in logical volume.
– Emmanuel Rosa
Feb 24 at 3:06
grub2 can load a kernel from an LVM logical volume, but it cannot be installed in logical volume.
– Emmanuel Rosa
Feb 24 at 3:06
Apparently, it is possible to install grub2 in the MBR and have it access an LVM logical volume (/boot) inside a BIOS LUKS partition: pavelkogan.com/2014/05/23/luks-full-disk-encryption. My understanding is that in this case, grub2 resides after the MBR and before the first partition. I am wondering why grub2 cannot be installed inside a partition. Is there no possibility to reserve some space at the beginning of a BIOS LUKS or LVM partition where grub2 can reside?
– MarkusM
Feb 24 at 15:02
Apparently, it is possible to install grub2 in the MBR and have it access an LVM logical volume (/boot) inside a BIOS LUKS partition: pavelkogan.com/2014/05/23/luks-full-disk-encryption. My understanding is that in this case, grub2 resides after the MBR and before the first partition. I am wondering why grub2 cannot be installed inside a partition. Is there no possibility to reserve some space at the beginning of a BIOS LUKS or LVM partition where grub2 can reside?
– MarkusM
Feb 24 at 15:02
I tried different things and couldn't make it work. After all it seems it is not supported as you said.
– MarkusM
Feb 24 at 22:55
I tried different things and couldn't make it work. After all it seems it is not supported as you said.
– MarkusM
Feb 24 at 22:55
add a comment |
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1
You can't, it's not supported
– 炸鱼薯条德里克
Feb 24 at 2:35
Why not? grub2 supports LVM and installing to a partition instead of the MBR is supported too.
– MarkusM
Feb 24 at 2:37
grub2 can load a kernel from an LVM logical volume, but it cannot be installed in logical volume.
– Emmanuel Rosa
Feb 24 at 3:06
Apparently, it is possible to install grub2 in the MBR and have it access an LVM logical volume (/boot) inside a BIOS LUKS partition: pavelkogan.com/2014/05/23/luks-full-disk-encryption. My understanding is that in this case, grub2 resides after the MBR and before the first partition. I am wondering why grub2 cannot be installed inside a partition. Is there no possibility to reserve some space at the beginning of a BIOS LUKS or LVM partition where grub2 can reside?
– MarkusM
Feb 24 at 15:02
I tried different things and couldn't make it work. After all it seems it is not supported as you said.
– MarkusM
Feb 24 at 22:55