[SOLVED] Grub problem using fakeraid
Hi,
I've been trying to install arch on Raid0 following https://wiki.archlinux.org/index.php/In … _Fake-RAID.
I load dm_mod and install arch using this partition table
pdc_jhaaaaghi1 (Boot) Primary NTFS (Windows)
pdc_jhaaaaghi2 Primary NTFS (Windows)
pdc_jhaaaaghi3 Primary ext2 (/boot)
pdc_jhaaaaghi5 Logical ext4 (/)
pdc_jhaaaaghi6 Logical ext4 (/home)
pdc_jhaaaaghi7 Logical swap
I install dmraid package and on configuration I add dm_mod to MODULES line and dmraid to HOOKS line in mkinitcpio.conf
I start configuring grub (I add (hd0,2) to root lines) and when it fails switch to another tty and run
# mount -o bind /dev /mnt/dev
# mount -t proc none /mnt/proc
# mount -t sysfs none /mnt/sys
# chroot /mnt /bin/bash
# dmsetup mknodes
# ln -s /dev/mapper/pdc_jhaaaaghip1 /dev/mapper/pdc_jhaaaaaghi1
# grub --device-map=/dev/null
grub> device (hd0) /dev/mapper/pdc_jhaaaaghi
grub> geometry (hd0) 121576 255 63
grub> root (hd0,2)
grub> setup (hd0)
grub> quit
On setup it says it's done but when I reboot I get this message instead of grub
Reboot and Select proper Boot device
or Insert Boot Media in selected Boot device and press a key
Thanks
Last edited by Irozga (2010-11-16 20:12:09)
Ok, it's solved now.
It wasn't the Gentoo's wiki thing. It was because of bios configuration and not Arch installation. I didn't look at this because windows was booting correctly before installation. But using the boot menu and selection my raid array it showed grub so I looked the boot device priority in bios and put my array first (it was second after usb devices).
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I had 3 Linux OS's installed on this computer, Arch and 2 versions of Ubuntu on one hard drive.
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[jeff@Arch2009p2 ~]$ sudo fdisk -l
Password:
Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
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New installation, no more windows, using LVM.
pvdisplay :
--- Physical volume ---
PV Name /dev/sda1
VG Name DesktopLVM
PV Size 243.14 MiB / not usable 3.14 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 60
Free PE 0
Allocated PE 60
PV UUID 9LXTZW-zZNI-dQ3W-RMTD-C3Fl-5blw-TbPwOo
--- Physical volume ---
PV Name /dev/sda2
VG Name DesktopLVM
PV Size 19.07 GiB / not usable 4.15 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 4882
Free PE 0
Allocated PE 4882
PV UUID bgu0dD-seVt-nz7i-3Vdi-PZ4U-MKKa-pk3i6V
--- Physical volume ---
PV Name /dev/sda3
VG Name DesktopLVM
PV Size 7.63 GiB / not usable 4.86 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1952
Free PE 0
Allocated PE 1952
PV UUID lybKyF-aqIM-3tTA-FEH3-LRPn-cjI5-qqhG75
--- Physical volume ---
PV Name /dev/sda4
VG Name DesktopLVM
PV Size 438.82 GiB / not usable 3.84 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 112337
Free PE 0
Allocated PE 112337
PV UUID l1h3Hh-BkzT-Fj0q-9mDH-1IGx-DtI0-v8AGgS
lvdisplay :
--- Logical volume ---
LV Path /dev/DesktopLVM/boot
LV Name boot
VG Name DesktopLVM
LV UUID Je7Lat-TOzj-vWei-5fLe-4cc8-ZAUF-J2IGAu
LV Write Access read/write
LV Creation host, time archiso, 2013-08-01 16:54:03 +0000
LV Status available
# open 1
LV Size 256.00 MiB
Current LE 64
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 254:1
--- Logical volume ---
LV Path /dev/DesktopLVM/root
LV Name root
VG Name DesktopLVM
LV UUID xRK2SN-4IG1-RjNV-RHAl-qeXL-R8F3-k4SDQt
LV Write Access read/write
LV Creation host, time archiso, 2013-08-01 16:54:12 +0000
LV Status available
# open 1
LV Size 20.00 GiB
Current LE 5120
Segments 1
Allocation inherit
Read ahead sectors auto
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Block device 254:2
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LV Path /dev/DesktopLVM/var
LV Name var
VG Name DesktopLVM
LV UUID Ej5zmm-7Q2x-HubD-JCBp-rg3F-g1oo-4rGBEn
LV Write Access read/write
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LV Status available
# open 1
LV Size 8.00 GiB
Current LE 2048
Segments 1
Allocation inherit
Read ahead sectors auto
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LV Path /dev/DesktopLVM/home
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WARNING: Failed to connect to lvmetad: No such file or directory. Falling back to internal scanning.
WARNING: Failed to connect to lvmetad: No such file or directory. Falling back to internal scanning.
WARNING: Failed to connect to lvmetad: No such file or directory. Falling back to internal scanning.
WARNING: Failed to connect to lvmetad: No such file or directory. Falling back to internal scanning.
WARNING: Failed to connect to lvmetad: No such file or directory. Falling back to internal scanning.
WARNING: Failed to connect to lvmetad: No such file or directory. Falling back to internal scanning.
WARNING: Failed to connect to lvmetad: No such file or directory. Falling back to internal scanning.
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# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
### BEGIN /etc/grub.d/00_header ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
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fi
if [ "${next_entry}" ] ; then
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set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
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else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
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save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
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save_env saved_entry
fi
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if [ x$feature_all_video_module = xy ]; then
insmod all_video
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insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
if [ x$feature_default_font_path = xy ] ; then
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insmod part_msdos
insmod part_msdos
insmod part_msdos
insmod lvm
insmod ext2
set root='lvm/DesktopLVM-root'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvm/DesktopLVM-root' b881e4e6-ad72-495c-8ae1-610ec15d27c8
else
search --no-floppy --fs-uuid --set=root b881e4e6-ad72-495c-8ae1-610ec15d27c8
fi
font="/usr/share/grub/unicode.pf2"
fi
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load_video
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set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_input console
terminal_output gfxterm
set timeout=5
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### BEGIN /etc/grub.d/10_linux ###
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load_video
set gfxpayload=keep
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insmod part_msdos
insmod part_msdos
insmod part_msdos
insmod lvm
insmod ext2
set root='lvm/DesktopLVM-boot'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvm/DesktopLVM-boot' edf3011c-e581-448e-baad-d1e03d5fb8f6
else
search --no-floppy --fs-uuid --set=root edf3011c-e581-448e-baad-d1e03d5fb8f6
fi
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linux /vmlinuz-linux root=/dev/mapper/DesktopLVM-root ro quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-linux.img
menuentry 'Arch Linux, with Linux core repo kernel (Fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-core repo kernel-fallback-b881e4e6-ad72-495c-8ae1-610ec15d27c8' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod part_msdos
insmod part_msdos
insmod part_msdos
insmod lvm
insmod ext2
set root='lvm/DesktopLVM-boot'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvm/DesktopLVM-boot' edf3011c-e581-448e-baad-d1e03d5fb8f6
else
search --no-floppy --fs-uuid --set=root edf3011c-e581-448e-baad-d1e03d5fb8f6
fi
echo 'Loading Linux core repo kernel ...'
linux /vmlinuz-linux root=/dev/mapper/DesktopLVM-root ro quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-linux-fallback.img
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
### BEGIN /etc/grub.d/60_memtest86+ ###
### END /etc/grub.d/60_memtest86+ ###
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Disk /dev/sda: 500.1 GB, 500107862016 bytes, 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 label type: dos
Disk identifier: 0x1bbed4e9
Device Boot Start End Blocks Id System
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/dev/sda2 498015 40499864 20000925 8e Linux LVM
/dev/sda3 40499865 56500604 8000370 8e Linux LVM
/dev/sda4 56500605 976773167 460136281+ 8e Linux LVM
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I/O size (minimum/optimal): 512 bytes / 512 bytes
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Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
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Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
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How do i install grub now ?
L.E. : do not include the boot partition into LVM.
Last edited by psycho (2013-08-01 18:58:18)Your first partition starts at block 63. Grub has gotten so bloated that it now writes to not only the MBR, but also to the space from the MBR (after sector 0) to the start of the first partition, which these days is sector 2048. This new start point is for alignment purposes.
You either need to recreate your first partition and let fdsik align it to sector 2048, or you need to create a grub bios boot partition (as though you were using GPT).
Honestly, although grub2 can handle this, I think putting /boot inside the LVM is a bad idea. It just makes you totally reliant on grub2 with no other bootloader choice. For example, if something in some poorly designed program decided to write some crap to the area between the MBR and the first partition (which applications have been known to do), and you had a USB flash drive with syslinux on it (which the Arch live media has), then you could not set it up to boot your disc.
I think you should use the pvremove command to take that first partition out temporarily, then create two new partitions. One for /boot and one to add back. But this is not going to be very straight forward since you already have four primary partitions. It might be better to convert your partitions to GPT (which is super easy using gdisk) because then you are limited to only 128 primary partitions instead of a measly four. If you do that though, then you will have to make three new partitions if you want to continue to use grub2. You will additionally need the grub bios partition mentioned above. The grub2 wiki page had more info on this. But then you should make the /boot partition and then the partition to add back.
At the very least, you are going to have to remove the first partition so that it can be resized, and then add it back. Hopefully, you have not already filled the LVM space, so that you can easily shift things around. -
I'm using windows 8 on my pc, and i have just downloaded the latest version of itunes, after i upgraded the latest version of itunes, it can't detect my iphone, but my windows/my pc does. Anyone knows how to solve this problem?
Hi jstutsman,
If you are having issues with your iPod nano not being recognized in iTunes after a recent update, you may find the steps and links listed in the following article helpful:
iPod not appearing in iTunes - Apple Support
Regards,
- Brenden
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