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Re: Famous "Your embedding area is unusually small" however my embedding
From: |
Andrey Borzenkov |
Subject: |
Re: Famous "Your embedding area is unusually small" however my embedding area looks like just the right size |
Date: |
Sat, 7 Sep 2013 11:33:47 +0400 |
В Fri, 06 Sep 2013 21:28:39 -0700
Mike Power <address@hidden> пишет:
> I am trying to reinstall grub on my system. Grub was installed before
> but I have had hard drive troubles, so one of the drives does not have
> grub on it. I have a lvm on top of a mirror raid.
>
>
> I run the following command
>
> $sudo grub-install /dev/sda
> [sudo] password for mpower:
> /usr/sbin/grub-setup: warn: Your embedding area is unusually small.
> core.img won't fit in it..
> /usr/sbin/grub-setup: error: embedding is not possible, but this is
> required when the root device is on a RAID array or LVM volume.
>
> This seems odd since it has grub on it. I really should have tried sdb
> first. But none the less if I look at sda it has 62 unused sectors on
> the front. From what I have read that is the right amount
address@hidden:~> grub2-mkimage -O i386-pc -o /tmp/core.img ext2 mdraid1x lvm
search_fs_uuid
address@hidden:~> LC_ALL=C ll /tmp/core.img
-rw-r--r-- 1 bor bor 32099 Sep 7 11:32 /tmp/core.img
That exceeds 31KiB (31744B).
>
> $ sudo fdisk -l /dev/sda
>
> Disk /dev/sda: 500.1 GB, 500107862016 bytes
> 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x00018e76
>
> Device Boot Start End Blocks Id System
> /dev/sda1 63 976768064 488384001 fd Linux raid
> autodetect
>
> Any idea what broke?
>
> Some additional info:
>
> $ sudo pvdisplay
> --- Physical volume ---
> PV Name /dev/md0
> VG Name vg
> PV Size 465.76 GiB / not usable 888.00 KiB
> Allocatable yes (but full)
> PE Size 4.00 MiB
> Total PE 119234
> Free PE 0
> Allocated PE 119234
> PV UUID wS9qYc-jWkT-FR3Z-bi0H-cY8I-wLS6-2Z1dPl
>
> $ sudo vgdisplay
> --- Volume group ---
> VG Name vg
> System ID
> Format lvm2
> Metadata Areas 1
> Metadata Sequence No 3
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 2
> Open LV 2
> Max PV 0
> Cur PV 1
> Act PV 1
> VG Size 465.76 GiB
> PE Size 4.00 MiB
> Total PE 119234
> Alloc PE / Size 119234 / 465.76 GiB
> Free PE / Size 0 / 0
> VG UUID QwDeNr-aQvO-5uYv-ImDP-C8eJ-uKyi-ZHYWtk
>
> $ sudo lvdisplay
> --- Logical volume ---
> LV Name /dev/vg/swap_1
> VG Name vg
> LV UUID hxn1wt-EcJP-8rfO-3lCc-X3OM-gG3f-uuR3WK
> LV Write Access read/write
> LV Status available
> # open 2
> LV Size 7.45 GiB
> Current LE 1907
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 256
> Block device 253:0
>
> --- Logical volume ---
> LV Name /dev/vg/root
> VG Name vg
> LV UUID tjmJkA-njlJ-VuDz-mBvY-5hpB-bsMD-ftKMXP
> LV Write Access read/write
> LV Status available
> # open 1
> LV Size 458.31 GiB
> Current LE 117327
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 256
> Block device 253:1
>
> $ sudo mdadm -D /dev/md0
> /dev/md0:
> Version : 1.2
> Creation Time : Wed Jan 11 20:30:26 2012
> Raid Level : raid1
> Array Size : 488383352 (465.76 GiB 500.10 GB)
> Used Dev Size : 488383352 (465.76 GiB 500.10 GB)
> Raid Devices : 2
> Total Devices : 2
> Persistence : Superblock is persistent
>
> Update Time : Fri Sep 6 21:26:31 2013
> State : clean
> Active Devices : 2
> Working Devices : 2
> Failed Devices : 0
> Spare Devices : 0
>
> Name : petros:0 (local to host petros)
> UUID : dea84e95:1a6753ea:2982d49d:b812ff86
> Events : 2204266
>
> Number Major Minor RaidDevice State
> 2 8 1 0 active sync /dev/sda1
> 3 8 17 1 active sync /dev/sdb1
>
> $ grub-install -v
> grub-install (GRUB) 1.99-12ubuntu5.1
>
> $ lsb_release -a
> No LSB modules are available.
> Distributor ID: Ubuntu
> Description: Ubuntu 11.10
> Release: 11.10
> Codename: oneiric
>
> $ uname -a
> Linux petros 3.0.0-32-generic #51-Ubuntu SMP Thu Mar 21 15:50:59 UTC
> 2013 x86_64 x86_64 x86_64 GNU/Linux
>
>