Grub2-bios -- yes or no? [SOLVED]

I switched to grub2 only a couple of months ago when I installed an SSD as my main boot drive for Arch. It took me a bit of doing to migrate from grub, but I finally got it working and haven't worried with it since.
Now pacman proposes replacing grub2 with grub2-bios. I've tried to read up on this, but I'm confused.
Is this a change I want or not?
Thanks!
Last edited by dhave (2011-02-11 22:43:14)

litemotiv wrote:
graysky wrote:+1 - upgraded and works just fine (not an EFI BIOS here). You will need to vimdiff your /etc/default/grub and your /etc/grub/40_custom if you have it.
Afaik the custom config is automatically copied back after the installation?
I had to vimdiff them; here is the pacman.log FYI-
[2011-02-11 16:16] starting full system upgrade
[2011-02-11 16:16] warning: /etc/grub.d/40_custom saved as /etc/grub.d/40_custom.pacsave
[2011-02-11 16:16] warning: /etc/default/grub saved as /etc/default/grub.pacsave
[2011-02-11 16:16] warning: /boot/grub/grub.cfg saved as /boot/grub/grub.cfg.pacsave
[2011-02-11 16:16] removed grub2 (1.98-5)
[2011-02-11 16:16] Copying /boot/grub/grub.cfg.pacsave to /boot/grub/grub.cfg
[2011-02-11 16:17] Generating grub.cfg.example config file... done.
[2011-02-11 16:17] An example config file is created at /boot/grub/grub.cfg.example
Last edited by graysky (2011-02-12 00:57:22)

Similar Messages

[SOLVED] Splitting grub2 package as grub2-bios and grub2-efi

Hi all,
I currently maintain the grub2-efi-bzr http://aur.archlinux.org/packages.php?ID=40290 and grub2-bios-bzr http://aur.archlinux.org/packages.php?ID=41055 AUR packages. I proposed a split PKGBUILD to tpowa and pressh for grub2 package based on requests at https://bugs.archlinux.org/task/19838 and https://bugs.archlinux.org/task/20419 . The PKGBUILD creates 4 packages grub2-common, grub2-bios, grub2-efi-x86_64, grub2-efi-i386.
I need your impressions and suggestions on improving the PKGBUILD, especially in avoiding the use of multilib toolchain. Thanks in advance.
grub2-bios for Archlinux i686 and x86_64 (multilib needed in x86_64) - compiled as any in Arch64
grub2-bios for Archlinux i686 and x86_64 (multilib needed in x86_64) - compiled as any in Arch64
grub2-efi-x86_64 for Archlinux i686 and x86_64 (no need for multilib in x86_64, not possible to compile in i686) - compiled as any in Arch64
I currently use x86_64 Archlinux with gcc-multilib from the official repo. I do not have i686 linux (either Arch or any other distro) installed. My system compiles both grub2-efi-x86_64 and grub2-efi-i386 using the below PKGBUILD. I use only grub2-efi-x86_64 (or x86_64-EFI) in my system.
_grub2_rev=3040
_grub2_lua_ver=19
_grub2_gpxe_ver=12
_grub2_ntldr_ver=13
_grub2_915_ver=6
_USE_MULTILIB=1
pkgname=('grub2-common' 'grub2-bios' 'grub2-efi-i386')
pkgbase="grub2"
pkgver="1.99beta0_r${_grub2_rev}"
pkgrel=1
url="http://www.gnu.org/software/grub/"
arch=('i686' 'x86_64')
license=('GPL3')
optdepends=()
makedepends=('bdf-unifont' 'python2' 'xz' 'autogen' 'texinfo' 'help2man' 'gettext')
options=(strip docs zipman !emptydirs)
groups=('grub2')
conflicts=()
provides=()
# source=("ftp://alpha.gnu.org/gnu/grub/grub-${pkgver}.tar.gz"
source=("http://dl.dropbox.com/u/9710721/grub2_sources/grub2_r${_grub2_rev}.tar.xz"
"http://dl.dropbox.com/u/9710721/grub2_sources/grub2_extras_lua_r${_grub2_lua_ver}.tar.xz"
"http://dl.dropbox.com/u/9710721/grub2_sources/grub2_extras_gpxe_r${_grub2_gpxe_ver}.tar.xz"
"http://dl.dropbox.com/u/9710721/grub2_sources/grub2_extras_ntldr-img_r${_grub2_ntldr_ver}.tar.xz"
"http://dl.dropbox.com/u/9710721/grub2_sources/grub2_extras_915resolution_r${_grub2_915_ver}.tar.xz"
'grub2.default'
'grub.cfg.example'
'20_memtest86+'
'05_archtheme')
noextract=("grub2_extras_lua_r${_grub2_lua_ver}.tar.xz"
"grub2_extras_gpxe_r${_grub2_gpxe_ver}.tar.xz"
"grub2_extras_ntldr-img_r${_grub2_ntldr_ver}.tar.xz"
"grub2_extras_915resolution_r${_grub2_915_ver}.tar.xz")
sha256sums=('50e17683b972c0f5aab9b252af6c800bdc6068aab3654059046a435a3c5eccb6'
'4d092a8780342a0f7fb5f5f92dc3b123fb5dd583ba137357630c56d416ed3114'
'8ce1b6b89ef0e3545736477d4c4418524e32c7fb9ba40c67dcebfb84b98cde66'
'554e9d65805ac61ca9a8c7cecdf6e7d28375dc28b3984140faef0e929e1ebd5b'
'f0bd90bbbad4b07ec2053d4056f7c5252e95e97477af4206df59ec2d72d88ce0'
'9dc7834514deabba3eb3ed19d0c7d73e3ab0114b7cd8a2eb6b17e8b7a6328143'
'8128da77d8e8c86077fde561ba107756ece744ad54a16161c637ce73f836a84a'
'ba0f871ee93760d14d7f19709bb875af4a863a758776a23519ca7100a63da295'
'6628b70b857c024297af38cf519bfe7d518a122030ab5d0958677a60ddff6cdd')
# DESTARCH="i686"
DESTARCH="x86_64"
if [ "${CARCH}" = 'x86_64' ] && [ "${_USE_MULTILIB}" = '1' ]
then
makedepends=(${makedepends[@]} 'gcc-multilib' 'gcc-libs-multilib' 'lib32-glibc' 'binutils-multilib' 'libtool-multilib')
_EFIEMU="--enable-efiemu"
_CFLAGS=""
_HOST="x86_64"
if [ "${DESTARCH}" = 'i686' ]
then
_CFLAGS="-m32"
_HOST="i686"
fi
elif [ "${CARCH}" = 'x86_64' ] && [ "${_USE_MULTILIB}" = '0' ]
then
echo "This package can be built only in a i686 system or in a x86_64 system using gcc-multilib. Exiting."
exit 1
fi
if [ "${CARCH}" = 'i686' ]
then
_EFIEMU="--disable-efiemu"
if [ "${DESTARCH}" = 'x86_64' ]
then
_CFLAGS="-m32 -static"
_HOST="i686"
fi
fi
build_grub2-common_and_bios() {
rm -rf ${srcdir}/grub2_bios_${DESTARCH} || true
cp -r ${srcdir}/grub2 ${srcdir}/grub2_bios_${DESTARCH}
cd ${srcdir}/grub2_bios_${DESTARCH}
mkdir ${srcdir}/grub2_bios_${DESTARCH}/grub2-extras/
cd ${srcdir}/grub2_bios_${DESTARCH}/grub2-extras/
bsdtar xf ${srcdir}/grub2_extras_lua_r${_grub2_lua_ver}.tar.xz
bsdtar xf ${srcdir}/grub2_extras_gpxe_r${_grub2_gpxe_ver}.tar.xz
bsdtar xf ${srcdir}/grub2_extras_ntldr-img_r${_grub2_ntldr_ver}.tar.xz
bsdtar xf ${srcdir}/grub2_extras_915resolution_r${_grub2_915_ver}.tar.xz
cd ${srcdir}/grub2_bios_${DESTARCH}
export GRUB_CONTRIB=${srcdir}/grub2_bios_${DESTARCH}/grub2-extras/
## Archlinux changed default /usr/bin/python3, need to use /usr/bin/python2 instead
cp ${srcdir}/grub2_bios_${DESTARCH}/autogen.sh ${srcdir}/grub2_bios_${DESTARCH}/autogen_unmodified.sh
sed -i 's|python|python2|' ${srcdir}/grub2_bios_${DESTARCH}/autogen.sh
${srcdir}/grub2_bios_${DESTARCH}/autogen.sh
echo
mkdir ${srcdir}/grub2_bios_${DESTARCH}/BUILD_BIOS
cd ${srcdir}/grub2_bios_${DESTARCH}/BUILD_BIOS
CFLAGS="${_CFLAGS}" ${srcdir}/grub2_bios_${DESTARCH}/configure --with-platform=pc \
--host=${_HOST} \
--program-transform-name=s,grub,grub2, \
--enable-mm-debug \
${_EFIEMU} \
--enable-grub-mkfont \
--prefix=/usr \
--bindir=/bin \
--sbindir=/sbin \
--mandir=/usr/share/man \
--infodir=/usr/share/info \
--sysconfdir=/etc
echo
CFLAGS="${_CFLAGS}" make
echo
${srcdir}/grub2_bios_${DESTARCH}/BUILD_BIOS/grub-mkfont --output=${srcdir}/unifont.pf2 /usr/share/fonts/misc/unifont.bdf || true
${srcdir}/grub2_bios_${DESTARCH}/BUILD_BIOS/grub-mkfont --ascii-bitmaps --output=${srcdir}/ascii.pf2 /usr/share/fonts/misc/unifont.bdf || true
build_grub2-efi-i386() {
mkdir ${srcdir}/grub2_efi/BUILD_EFI_i386
cd ${srcdir}/grub2_efi/BUILD_EFI_i386
CFLAGS="${_CFLAGS}" ${srcdir}/grub2_efi/configure --with-platform=efi \
--target=i386 \
--host=${_HOST} \
--program-transform-name=s,grub,grub2, \
--enable-mm-debug \
--disable-efiemu \
--prefix=/usr \
--bindir=/bin \
--sbindir=/sbin \
--mandir=/usr/share/man \
--infodir=/usr/share/info \
--sysconfdir=/etc
echo
CFLAGS="${_CFLAGS}" make
echo
build_grub2-efi() {
rm -rf ${srcdir}/grub2_efi || true
cp -r ${srcdir}/grub2 ${srcdir}/grub2_efi
rm -rf ${srcdir}/grub2
cd ${srcdir}/grub2_efi
mkdir ${srcdir}/grub2_efi/grub2-extras/
cd ${srcdir}/grub2_efi/grub2-extras/
bsdtar xf ${srcdir}/grub2_extras_lua_r${_grub2_lua_ver}.tar.xz
bsdtar xf ${srcdir}/grub2_extras_gpxe_r${_grub2_gpxe_ver}.tar.xz
cd ${srcdir}/grub2_efi
export GRUB_CONTRIB=${srcdir}/grub2_efi/grub2-extras/
## Archlinux changed default /usr/bin/python3, need to use /usr/bin/python2 instead
cp ${srcdir}/grub2_efi/autogen.sh ${srcdir}/grub2_efi/autogen_unmodified.sh
sed -i 's|python|python2|' ${srcdir}/grub2_efi/autogen.sh
${srcdir}/grub2_efi/autogen.sh
echo
build_grub2-efi-i386
echo
build() {
echo
build_grub2-common_and_bios #
echo
build_grub2-efi #
echo
package_grub2-common() {
pkgdesc="The GNU GRand Unified Bootloader version 2 - Files common for all platforms"
install="grub2-common.install"
depends=('sh' 'xz' 'freetype2' 'mtools' 'dosfstools')
conflicts=('grub2')
backup=('etc/default/grub' 'etc/grub.d/40_custom')
cd ${srcdir}/grub2_bios_${DESTARCH}/BUILD_BIOS
make DESTDIR=${pkgdir} install
## install grub2-extras ntldr-img's grubinst as grub2-grubinst
install ${srcdir}/grub2_bios_${DESTARCH}/BUILD_BIOS/grub-core/grubinst ${pkgdir}/sbin/grub2-grubinst || true
## remove platform specific files
rm -rf ${pkgdir}/usr/lib/grub2/
rm -rf ${pkgdir}/usr/share/grub2/
## remove some problamatic files - may work properly in future
rm -rf ${pkgdir}/etc/bash_completion.d/
cp ${pkgdir}/sbin/grub2-install ${pkgdir}/sbin/grub2_bios-install
cp ${pkgdir}/sbin/grub2-install ${pkgdir}/sbin/grub2_efi_x86_64-install
cp ${pkgdir}/sbin/grub2-install ${pkgdir}/sbin/grub2_efi_i386-install
sed -i "s|^$target_cpu$=.*|\1=i386|; \
s|^$platform$=.*|\1=pc|" \
${pkgdir}/sbin/grub2_bios-install
sed -i "s|^$target_cpu$=.*|\1=x86_64|; \
s|^$platform$=.*|\1=efi|" \
${pkgdir}/sbin/grub2_efi_x86_64-install
sed -i "s|^$target_cpu$=.*|\1=i386|; \
s|^$platform$=.*|\1=efi|" \
${pkgdir}/sbin/grub2_efi_i386-install
## install the /etc/grub.d/ files
install ${startdir}/05_archtheme ${pkgdir}/etc/grub.d/05_archtheme
install ${startdir}/20_memtest86+ ${pkgdir}/etc/grub.d/20_memtest86+
## install the unifont files
install ${srcdir}/unifont.pf2 ${pkgdir}/etc/grub.d/unifont.pf2 || true
install ${srcdir}/ascii.pf2 ${pkgdir}/etc/grub.d/ascii.pf2 || true
## install /etc/default/grub
install -Dm644 ${srcdir}/grub2.default ${pkgdir}/etc/default/grub
## install example grub2 config file
install -Dm755 ${srcdir}/grub.cfg.example ${pkgdir}/etc/grub.d/grub.cfg.example
## rename grub.info to grub2.info
mv ${pkgdir}/usr/share/info/grub.info ${pkgdir}/usr/share/info/grub2.info || true
export CARCH="${DESTARCH}"
package_grub2-bios() {
pkgdesc="The GNU GRand Unified Bootloader version 2 - Built for PC BIOS"
arch=('any')
depends=(grub2-common=${pkgver})
replaces=('grub2')
install="grub2-bios.install"
cd ${srcdir}/grub2_bios_${DESTARCH}/BUILD_BIOS
make DESTDIR=${pkgdir} install
## remove non platform-specific files
rm -rf ${pkgdir}/bin/
rm -rf ${pkgdir}/sbin/
rm -rf ${pkgdir}/etc/
rm -rf ${pkgdir}/usr/share/info/
rm -rf ${pkgdir}/usr/share/man/
rm -rf ${pkgdir}/usr/lib/grub/
package_grub2-efi-i386() {
pkgdesc="The GNU GRand Unified Bootloader version 2 - i386 UEFI version"
arch=('any')
depends=("grub2-common=${pkgver}" 'efibootmgr-git')
replaces=('grub2-efi-x86')
install="grub2-efi.install"
cd ${srcdir}/grub2_efi/BUILD_EFI_i386
make DESTDIR=${pkgdir} install
## remove non platform-specific files
rm -rf ${pkgdir}/bin/
rm -rf ${pkgdir}/sbin/
rm -rf ${pkgdir}/etc/
rm -rf ${pkgdir}/usr/share/info/
rm -rf ${pkgdir}/usr/share/man/
rm -rf ${pkgdir}/usr/lib/grub/
sed -i "s|^$_EFI_ARCH$=.*|\1=i386|" ${startdir}/grub2-efi.install
Last edited by skodabenz (2011-01-30 19:36:25)

The package is now in testing repo and will soon be moved to extra repo. Solved by splitting the PKGBUILDs and through direct interaction with grub2 maintainer using irc.

I can't install GRUB2 in one x86_64 machine [Solved]

Hi to everyone:
This is my partitions schema:
[root@archerpc ~]# fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
224 heads, 19 sectors/track, 229504 cylinders
Units = cylinders of 4256 * 512 = 2179072 bytes
Disk identifier: 0x4a7d4a7c
Device Boot Start End Blocks Id System
/dev/sda1 * 1 52933 112640000 7 HPFS/NTFS
/dev/sda2 52933 53394 979965 82 Linux swap / Solaris
/dev/sda3 53394 76340 48829567+ 83 Linux
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0dd64896
Device Boot Start End Blocks Id System
/dev/sdb1 1 60801 488384001 83 Linux
This is the /boot/grub/grub.cfg file:
# Config file for GRUB2 - The GNU GRand Unified Bootloader
# /boot/grub/grub.cfg
# DEVICE NAME CONVERSIONS
# Linux Grub
# /dev/fd0 (fd0)
# /dev/sda (hd0)
# /dev/sdb2 (hd1,2)
# /dev/sda3 (hd0,3)
# Timeout for menu
set timeout=5
# Set default boot entry as Entry 0
set default=0
# (0) Arch Linux
menuentry "Arch Linux" {
set root=(hd0,3)
linux /boot/vmlinuz26 root=/dev/sda3 ro
initrd /boot/kernel26.img
## (1) Windows
#menuentry "Windows" {
#set root=(hd0,3)
#chainloader +1
And when I try install the grub ... the console shows only this :
[root@archerpc ~]# grub-install /dev/sda
Someone else with the same problem ... anyone knows how to fix it?
Last edited by Ravenman (2009-11-14 14:51:31)

Hi to everyone:
The solution is simple: I did turn off the floppy drive from the BIOS and I could install GRUB2 in my machine.
Thanks to Ronald van Haren for his help and patience. Until the next.

848P wont' post after bios upgrade under windows --- SOLVED

Hi, I own a MSI 848p Neo-V, with a P4C 3Ghz, 2*512 PC4000 Corsair, 6600GT AGP, 1 CD recorder set as Master in primary IDE,
2 HDD SATA, PSU Antec 350W.
All that stuff has been working fine for months untill I installed liveupdate 3.69 downloaded from MSI web site , then started the bios (6788v61 I guess) update operation . I performed this update in Windows environment (Win XP SP2), I also ceated the safety floppy disk as suggested during the process.
Since then, the computer will not start : nopost at all, no display, no beep, no boot. I just have the cd recorder led and the LAN adapter led blinking from time to time. I performed a clear CMOS but it did not solved my problem.
Any idea or suggestion would be helpful.
Kind regards

Hey! I managed to fix it fianlly !!!
I read a lot of threads in many forums, and first learning is do not upgrade if you do not need to (stupid but correct at the same time )
I found a contribution from MarkA (who's my new god by the way) here https://forum-en.msi.com/index.php?topic=28048.msg161595#msg161595
I don't know whether the ram story is relevant, but it worked for me anyway ; here is exactly what I did to recover :
1 - ungluged PSU cable
2 - pushed power button to totally empty capacitors
3 - clean Clear Cmos (jbat1 moved from 1-2 to 2-3) --> https://forum-en.msi.com/index.php?topic=31222.0
4 - remove the two PC4000 Corsair Ram modules
5 - inserted one 2700 Ram module (borrowed for this test)
6 - move jbat1 back to 1-2
7 - insert floppy with latest bios renamed AMIBOOT.ROM (
8 - plug the psu cable back in
9 - power on while pressing Ctrl+Home
10 - removed floppy when hearing 4 bips
11 - reboot, and display is working (hurra! )
12 - Access to bios to restore settings
13 - Power off
14 - ungluged PSU cable
15 - removed the 2700 Ram module
16 - inserted the two PC4000 Corsair Ram modules instead
17 - plug the psu cable back in
Since then, everything is working fine
Thanks to all who tried to support me in this operation.

M77 Motherboard failed bios update to 60 [Solved]

Hello all,
I recently tried to update my bios to version 17.6 or 60 and on reboot it came up with a blue screen. Then windows tried to complete startup Repair, but that failed.
I Tried to swap to the second bios but it seems that one got hit also by the failure.
I am able to boot to the bios, however and tried recover using m-flash utitility. nothing on reboot though.
Am i pretty much screwed at this point. It is a new board for me i just bought it back in i think October. Do i need to just RMA this board or is there something else i can do?
Thanks for the help.

Quote from: xmad on 14-January-13, 08:13:08
It should go though whatever boot order you have set looking for the first available bootmgr.
At one time did you have an os on ther HDD? If so, there is probably still a boot partition. Just remove that and it will just check it and move on.
Yes, there was an os still on it. I am keeping it like that so if i forgot to move some files over i won't loose them.
Thanks i will google how to remove the boot partition on it.

Wifi not working after bios upgrade. [SOLVED]

Hi All,
I have just upgraded my bios to correct a freq scaling issue and have noticed that WiFi is no longer working.
In dmesg I notice:
p54pci 0000:06:00.0: PCI INT A disabled
p54pci: probe of 0000:06:00.0 failed with error -110
Looks like something to do with IRQ allocation for that PCI slot, does anyone know how to fix this?
I have scoured my motherboard manual, but see nothing about IRQ allocation to PCI slots ... and I am not even certain this is the problem.
All I know is, that my prism54 card in that slot worked fine before the BIOS update.
Thanks,
B
Last edited by bmentink (2010-05-12 22:25:15)

Hi, I found the issue.
When I did the BIOS update, I did a reboot to try out new settings etc ... this however was not good enough.
On googling around on the error, I found that the solution is to shutdown the box completely .. wait for the caps to discharge, then restart the box.
The card then started to work fine.
I guess the problem is one I have found at times with cards that require firmware, It is only when you do a complete powerdown like this, that the card resets correctly and
re-loads it's firmware .... I have had this issue show up in different ways on other cards (i.e DVB cards not loading there firmware).
I guess in this case the card retained some settings from the old BIOS which was not compatible with the new BIOS.
Marking as solved.

[SOLVED]Grub2 installation fails

Hello everyone !
I just switched from Ubuntu to Arch Linux and I have some trouble.
I can't seem to install grub2, I got a 64GB SSD with GPT and no EFI bios :
sudo pacman -S grub2
resolving dependencies...
looking for inter-conflicts...
Targets (2): grub2-common-1:1.99-4 grub2-bios-1:1.99-4
Total Download Size: 0.00 MB
Total Installed Size: 8.20 MB
Proceed with installation? [Y/n] Y
(2/2) checking package integrity [######################] 100%
(2/2) checking for file conflicts [######################] 100%
(1/2) installing grub2-common [######################] 100%
( The total download size must be 0.00 MB because I tried several times so it was already downloaded )
And then it hangs forever. It does the same thing when I try to install grub2-common alone. What should i do ?
Thanks in advance
Last edited by Nolhian (2011-08-23 08:11:00)

Hello thanks for your answer !
Unfortunately the cpu is not hanging since I'm running xfce and doing the install in a terminal and I can still do other stuff. I already tried to remove grub2 and separately grub2-bios and grub2-common. Grub is also not installed because when I installed arch linux it failed for unknown reason to install grub on my /dev/sdb, each time i tried, telling me there was some sort of error. And I checked with pacman -Rs grub.
At the moment I'm still forced to put my other hard drive with ubuntu on it in order to have his grub launch arch linux. When I only put the disk with arch linux on it, it hangs at boot, well just after the bios finishes loading it hangs without outputting anything ( because of the failing of grub install while installing arch ? ). Well I'm really lost

[solved] MBR to GPT, GRUB2, load Funtoo

cgdisk 0.8.5
Disk Drive: /dev/sda
Size: 312315562, 148.9 GiB
Part. # Size Partition Type Partition Name
14.5 KiB free space
1 235.3 MiB Linux filesystem Linux filesystem
2 972.7 MiB Linux swap Linux swap
3 147.7 GiB Linux filesystem Linux filesystem
5.8 MiB free space
Dear Archers
I want to convertmy existing MBR to GPT, and then load GRUB2 for installing Funtoo on this same HDD. ArchWiki says leave 2MiB for EF02 GPT-BIOS partition, before /boot (/dev/sda1). But, I have only 14.5KB in this position. But I have 5MB in the end. Can I use this 5MB for EFI02 partition?
It is said I should do this before I convert MBR to GPT. I have not yet converted MBR to GPT. Pl. advise. If there are other pitfalls in this subject matter (including Funtoo install) advice appreciated
Last edited by San2ban (2012-06-27 07:57:58)

Went ahead (since no further inputs from any body), converted the last 5.8MB on the disk to bios-boot partition (before converting MBR to GPT), without file system, label EF082 (bios-boot partition)
Later, installed GRUB2-bios, in the 440 byte boot code region of MBR, as recommended by Archwiki. Now, system is with GPT partition (BIOS, not UEFI), boot loader is GRUB2. Now, free from the limitation of only 4 primary partition (with MBR)

Installing grub2 1.99rc1 on Linux Software RAID (/dev/md[0-x])

Hello!
In the last days I tried to install Archlinux x64 on my server. This server consists of 4 SATA drives. I'm using Linux software Raid with the following configuration:
mdadm --create --verbose /dev/md0 --auto=yes --level=10 --raid-devices=4 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1
mdadm --create --verbose /dev/md1 --auto=yes --level=10 --raid-devices=4 /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2
mdadm --create --verbose /dev/md2 --auto=yes --level=0 --raid-devices=4 /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3
md0 --> / including /boot
md1 --> /data (my storage partiton)
md2 --> my swap partion
In the last step of the installer I don't installed grub and leave the installer without installing a bootloader.
I mounted the /dev folder to /mnt/dev and chrooted in my new system:
chroot /mnt bash
In my new system I installed the new grub2 bootloader with:
pacman -S grub2-bios
In the next step I tried to install the bootloader to the MBR with the following command:
grub_bios-install --boot-directory=/boot --no-floppy --recheck /dev/md0
But I get the following error:
/sbin/grub-probe: error: no such disk.
Auto-detection of a filesystem of /dev/md0 failed.
Please report this together with the output of "/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -v /boot/grub" to <[email protected]>
I also tried to install the grub2 directly on my discs with the following command:
grub_bios-install --boot-directory=/boot --no-floppy --recheck /dev/sda
But the error is the same as above.
Following the instruction of the error message I executed the following command:
/sbin/grub-probe --device-map="/boot/grub/device.map
I get a large debug output:
/sbin/grub-probe: info: scanning hd3,msdos2 for LVM.
/sbin/grub-probe: info: the size of hd3 is 3907029168.
/sbin/grub-probe: info: no LVM signature found
/sbin/grub-probe: info: scanning hd3,msdos1 for LVM.
/sbin/grub-probe: info: the size of hd3 is 3907029168.
/sbin/grub-probe: info: no LVM signature found
/sbin/grub-probe: info: scanning hd4 for LVM.
/sbin/grub-probe: info: the size of hd4 is 2068992.
/sbin/grub-probe: info: no LVM signature found
/sbin/grub-probe: info: the size of hd4 is 2068992.
/sbin/grub-probe: info: scanning hd4,msdos1 for LVM.
/sbin/grub-probe: info: the size of hd4 is 2068992.
/sbin/grub-probe: info: no LVM signature found
/sbin/grub-probe: info: changing current directory to /dev.
/sbin/grub-probe: info: opening md0.
/sbin/grub-probe: error: no such disk.
There is a tutorial for installing grub2 at ArchLinux in the wiki:
https://wiki.archlinux.org/index.php/Grub2
But I can't find any solution for my problem.
Does anybody know a solution for this problem?
Thanks for help
Best regards,
Flasher
Last edited by Flasher (2011-03-03 20:13:13)

hbswn wrote:Maybe it cannot handle the new mdadm format. Here the other partitions have version 0.90. Only the failing md0 has version 1.2:
I'm sure it is the cause of the problem. But not new format. The old one (0.90) is incompatible with grub2.
I hit the same problem and today I managed to fix it.
What I did: I copied /boot to tmp directory, destroyed /dev/md0 (my /boot) with metadata 0.90, created new /dev/md0 (metadata 1.2), copied back /boot content.
After that, grub_bios-install /dev/sda && grub_bios-install /dev/sdb finished without any errors.

[solved]Can't reinstall grub2_bios

Several weird things have just happened.
I just removed my Fedora partition. I was just some logical partition in extended with swap. That was pretty normal. Getting rid of Fedora is the only sane thing to do with it. anyway, Gparted got rid of it, I gave a little more space to the Debian partition, shrunk extended, grew /home. That all exited fine.
Then I rebooted and Arch wouldn't load. I thought it might have something to do with the bootloader (which was stupid, cause the bootloader actually did it's job fine, it was actually something about diskcheck failure), I reninstalled grub2 to my Ubuntu partition with a LiveCD. This didn't fix the problem.
Anyway, then I went try and fix the disk check problem in Arch. It only let me log in as root for some kind of rescue mode thing. Anyway, the only partitions that didn't check out were the ones with Ubuntu and Debian (which I mount into Arch as well for mantinance, since Debina is Sid, and Ubuntu is the current beta). I don't actually know how to fix disk check failures, so I tried the next best thing, having them not be checked at boot. I couldn't do it from the rescue console. It told me I was trying to edit a read-only drive (and I was root). I logged into debian and tried. This worked, though I still don't know why they can't be checked, nor why I couldn't edit the file from the rescue console.
Anyway, now I'm in arch, but I'm booting through the Ubuntu boot loader. I want my arch bootloader back. I tried to reistall it with...
# grub_bios-install --boot-directory=/boot --no-floppy --recheck --force /dev/sda1
... but it says "rm: cannot remove `/boot/grub/core.img`: Operation not permitted"
And yes, I'm running it as root, before anyone asks.
So what's up?
Last edited by ninjaaron (2011-10-01 15:07:18)

ninjaaron wrote:
Anyway, now I'm in arch, but I'm booting through the Ubuntu boot loader. I want my arch bootloader back. I tried to reistall it with...
# grub_bios-install --boot-directory=/boot --no-floppy --recheck --force /dev/sda1
... but it says "rm: cannot remove `/boot/grub/core.img`: Operation not permitted"
And yes, I'm running it as root, before anyone asks.
So what's up?
Run
# chattr -i /boot/grub/core.img
# grub_bios-install --boot-directory=/boot --no-floppy --recheck --force /dev/sda1
# chattr +i /boot/grub/core.img
Anyway as said in the wiki, its better to install grub2 bios to the MBR rather than the partition boot sector.
Last edited by skodabenz (2011-10-01 11:02:04)

[SOLVED] Random freeze at poweroff / suspend.

«poweroff» command works from time to time.
When it does not work, it goes all the way to the end, prints „[42…] Power down.“ (looks like dmesg message), parks harddrive heads, and stays on (with screen on and this message shown).
«pm-suspend» (and «s2ram») also works sometimes, but most of the time it turns off the screen, parks harddrive heads, and stays on with fan spinning and leds in normal (working) state.
It depends on something (luck?), sometimes suspend and resume works with pm-suspend. But most of the time it hangs on suspend, so it is not usable.
EeePC 1015B.
kernel26 2.6.39.3-1
acpi 1.5-1
acpitool 0.5.1-2
pmtools 20101124-1
udev 172-2
grub2-bios 1:1.99-3
grub2-common 1:1.99-3
Bios updated to latest (0309). It is a EFI bios, but it works fine with grub2-bios. Default settings.
Free «radeon» driver.
$ lspci -v
00:00.0 Host bridge: Advanced Micro Devices [AMD] Pavilion DM1Z-3000 Host bridge
Subsystem: Advanced Micro Devices [AMD] Pavilion DM1Z-3000 Host bridge
Flags: bus master, 66MHz, medium devsel, latency 32
00:01.0 VGA compatible controller: ATI Technologies Inc Device 9804 (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device 84a4
Flags: bus master, fast devsel, latency 0, IRQ 40
Memory at c0000000 (32-bit, prefetchable) [size=256M]
I/O ports at f000 [size=256]
Memory at feb00000 (32-bit, non-prefetchable) [size=256K]
Memory at fde00000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: radeon
Kernel modules: radeon
00:01.1 Audio device: ATI Technologies Inc Device 1314
Subsystem: ASUSTeK Computer Inc. Device 84a4
Flags: bus master, fast devsel, latency 0, IRQ 41
Memory at feb44000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
00:04.0 PCI bridge: Advanced Micro Devices [AMD] Device 1512 (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
Memory behind bridge: fea00000-feafffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:05.0 PCI bridge: Advanced Micro Devices [AMD] Device 1513 (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: fe900000-fe9fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:11.0 SATA controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] (prog-if 01 [AHCI 1.0])
Subsystem: ATI Technologies Inc Device 4390
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 19
I/O ports at f140 [size=8]
I/O ports at f130 [size=4]
I/O ports at f120 [size=8]
I/O ports at f110 [size=4]
I/O ports at f100 [size=16]
Memory at feb4c000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci
00:12.0 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
Subsystem: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 18
Memory at feb4b000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci_hcd
Kernel modules: ohci-hcd
00:12.2 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
Subsystem: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 17
Memory at feb4a000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
00:13.0 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
Subsystem: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 18
Memory at feb49000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci_hcd
Kernel modules: ohci-hcd
00:13.2 USB Controller: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
Subsystem: ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 17
Memory at feb48000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 42)
Subsystem: ATI Technologies Inc SBx00 SMBus Controller
Flags: 66MHz, medium devsel
Kernel driver in use: piix4_smbus
Kernel modules: sp5100_tco, i2c-piix4
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) (rev 40)
Subsystem: ASUSTeK Computer Inc. Device 841c
Flags: bus master, slow devsel, latency 32, IRQ 16
Memory at feb40000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
00:14.3 ISA bridge: ATI Technologies Inc SB7x0/SB8x0/SB9x0 LPC host controller (rev 40)
Subsystem: ATI Technologies Inc SB7x0/SB8x0/SB9x0 LPC host controller
Flags: bus master, 66MHz, medium devsel, latency 0
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge (rev 40) (prog-if 01 [Subtractive decode])
Flags: bus master, VGA palette snoop, 66MHz, medium devsel, latency 64
Bus: primary=00, secondary=03, subordinate=03, sec-latency=64
00:15.0 PCI bridge: ATI Technologies Inc Device 43a0 (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=04, subordinate=06, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fdf00000-fe8fffff
Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 0 (rev 43)
Flags: fast devsel
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 1
Flags: fast devsel
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 2
Flags: fast devsel
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 3
Flags: fast devsel
Capabilities: <access denied>
Kernel driver in use: k10temp
Kernel modules: k10temp
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 4
Flags: fast devsel
00:18.5 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 6
Flags: fast devsel
00:18.6 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 5
Flags: fast devsel
00:18.7 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 7
Flags: fast devsel
01:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)
Subsystem: AzureWave Device 2047
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at fea00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: brcmsmac
Kernel modules: brcmsmac
02:00.0 Ethernet controller: Atheros Communications AR8152 v2.0 Fast Ethernet (rev c1)
Subsystem: ASUSTeK Computer Inc. Device 8468
Flags: bus master, fast devsel, latency 0, IRQ 42
Memory at fe900000 (64-bit, non-prefetchable) [size=256K]
I/O ports at e000 [size=128]
Capabilities: <access denied>
Kernel driver in use: atl1c
Kernel modules: atl1c
$ lsmod
Module Size Used by
ppp_deflate 4130 0
zlib_deflate 20302 1 ppp_deflate
bsd_comp 5195 0
ppp_async 7162 1
crc_ccitt 1371 1 ppp_async
ppp_generic 23437 7 ppp_deflate,bsd_comp,ppp_async
slhc 5233 1 ppp_generic
ipv6 288690 12
rndis_wlan 25030 0
rndis_host 5811 1 rndis_wlan
cdc_ether 4246 1 rndis_host
usbnet 15370 3 rndis_wlan,rndis_host,cdc_ether
cdc_phonet 5234 0
cdc_acm 16401 3
phonet 25886 1 cdc_phonet
mii 4003 1 usbnet
rfcomm 34757 8
bnep 9253 2
joydev 9959 0
snd_hda_codec_realtek 297871 1
snd_hda_codec_hdmi 22784 1
arc4 1450 2
uvcvideo 62143 0
ecb 2113 2
videodev 78070 1 uvcvideo
snd_hda_intel 22186 2
radeon 989827 3
snd_hda_codec 77543 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
media 10437 1 videodev
v4l2_compat_ioctl32 8364 1 videodev
brcmsmac 599290 0
eeepc_wmi 2287 0
asus_wmi 13524 1 eeepc_wmi
sparse_keymap 3128 1 asus_wmi
ttm 54496 1 radeon
snd_hwdep 6342 1 snd_hda_codec
drm_kms_helper 27529 1 radeon
mac80211 211662 1 brcmsmac
pci_hotplug 25648 1 asus_wmi
snd_pcm 73736 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
evdev 9530 9
btusb 11585 1
drm 181991 5 radeon,ttm,drm_kms_helper
serio_raw 4366 0
snd_timer 19488 1 snd_pcm
pcspkr 1891 0
bluetooth 128303 23 rfcomm,bnep,btusb
psmouse 54752 0
i2c_piix4 8296 0
sg 25621 0
snd 57256 11 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
k10temp 2923 0
sp5100_tco 4608 0
cfg80211 146369 3 rndis_wlan,brcmsmac,mac80211
video 11300 0
i2c_algo_bit 5239 1 radeon
soundcore 6178 1 snd
battery 10945 0
processor 24328 2
atl1c 32631 0
rfkill 15498 4 asus_wmi,bluetooth,cfg80211
ac 3305 0
button 4510 0
snd_page_alloc 7161 2 snd_hda_intel,snd_pcm
wmi 8387 1 asus_wmi
i2c_core 20165 6 videodev,radeon,drm_kms_helper,drm,i2c_piix4,i2c_algo_bit
ext4 368162 3
mbcache 5793 1 ext4
jbd2 70956 1 ext4
crc16 1337 2 bluetooth,ext4
sd_mod 27379 5
ohci_hcd 21754 0
ahci 20905 4
libahci 18925 1 ahci
ehci_hcd 39359 0
libata 173061 2 ahci,libahci
usbcore 142192 11 rndis_wlan,rndis_host,cdc_ether,cdc_phonet,usbnet,cdc_acm,uvcvideo,btusb,ohci_hcd,ehci_hcd
scsi_mod 130020 3 sg,sd_mod,libata
Last edited by ChALkeR (2011-07-25 17:22:51)

Solved by updating to linux 3.0 and disabling plymouth (via removing „splash“ from grub.cfg).
This didn't work separately. kernel26 2.6.39.3 without plymouth gave a freeze, and linux 3.0 with plymouth gave a freeze.
Everyone, thanks for help.
Last edited by ChALkeR (2011-07-25 17:22:30)

Update BIOS Failed on Tecra R10 with Windows7

Hello,
I have problems with updating the BIOS of my Tecra R10J. The current version is 1.4, and I want to update it to 3.0, so i have downloaded from Toshiba web site the correct file named "P006Cv300.exe" released from 11/04/2009. This is a BIOS update ONLINE into a real session of Windows 7. Simply, right click the compress exe, click run as admin and that's all but ......... for me it said :
*"[Error] The starting of service was aborted. User does not have administrator privileges"*
see below :
http://perso.orange.fr/100mo/bioserror.jpg
I've tried it with :
- closed AV, Firewall, etc ...
- disable UAC
- Run as administrator
- Tried with an another admin account
- Safe mode (bios update does not support safe mode)
- direct local administrator session
No change. Still the message "User does not have administrator privileges".
Need help please, found nothing on Google (similar Bios problem but not solved !!!!!)
Thank you

Hi and thanks for your reply.
Yes my Tecra was delivered with Vista and not 7 but the bios update i've downloaded is "os independant". I can't believe that i must reinstall Vista for successful upgrading BIOS !! It's a joke ?
When i download the bios update on Toshiba website i choose "Tecra R10" and "Windows 7 64 bits" and then donwloaded the corresponding file.
Now I 've installed VAP, reboot notebook and now i have always the same error *but i found these errors in the eventviewer immediately after executing bios update* :
+\SystemRoot\SysWow64\Drivers\Aspi32.SYS has been blocked from loading due to incompatibility with this system. Please contact your software vendor for a compatible version of the driver.+
and
+The Aspi32 service failed to start due to the following error: This driver has been blocked from loading+
and
+The NCHGBIOS2SVC service failed to start due to the following error: The system cannot find the file specified.+
Any idea ?
Thank you ;)

Can't Enable XMP after BIOS flash to V1.4 on P55-GD85

I didn't put this in the BIOS section because while the BIOS is involved, I don't think it's necessarily a BIOS issue. However, if it should go there please move it.
While not new to computers by any stretch I committed the cardinal sin of updating my BIOS when I didn't absolutely have to. While their were some issues I'd hoped would be fixed with a new BIOS revision, they weren't critical.
I have a i7 860 Lynnfield system running Win 7 Home Premium 64 with a MSI P55-GD85 mobo which has been running fine since being built in March of this year. This was the first BIOS flash since I've built the system. The system came with either V1.0 or V1.1 (I think it was V1.1). I checked using Live Update (yes, I now know this is bad) and found there had been several udpates since my current version. I went ahead and used Live Update to flash the BIOS (yes, I know...not a good idea). Contrary to the horror stories the flash itself went fine. I watched it flash the BIOS and everything verified fine. Of course after the update I had to reset my BIOS settings to get the system to run which went fine. The problem is that the one thing I can't do is enable the XMP option for the memory without the system crashing. If I enable this option the system will POST and then do a memory dump before ever getting to the desktop. Without turning this option on I can't take full advantage of my RAM. I am running G.SKILL Trident 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 2000 (PC3 16000) which are XMP compliant and ran without issue up until the BIOS update. It is possible that there is some other setting that I didn't reset after the BIOS change to allow this to work that I am missing. I know I did a bunch of tweaking and changing of settings trying to get things to run correctly when I first built the system. I've gone over and over the BIOS and can't find anything else to try to get me to allow to enable the XMP option without crashing. By simply enabling that option my system would normally run stable at about 3.6-3.7GHz.
Does anyone have any ideas as to why this might be happening or what I can do about it? About the only other thing I can think of is to reflash the BIOS back to a previous version to see if that helps. I am sure there is something I am missing as there is no reason the BIOS shouldn't allow the XMP feature to be enabled without crashing. Any help would be most appreciated. Thanks.

Have you try to increase your RAM voltage to 1.55v ~1.6v?

[REQUEST] Less verbose Grub2

In my opinion this one of the little nice details that Ubuntu has. It would be nice if anyone can make a PKGBUILD for a Grub2 package that can ignore all the messages that appear before the splash screen, I refer to 'Welcome to Grub2... etc.' and 'loading' messages. It would be great, I think!

A PKGBUILD for grub2-bios-ubuntu with no messages ('Welcome to Grub2... etc.' and 'loading') is now in AUR:
https://aur.archlinux.org/packages.php?ID=52336
Last edited by maloy (2011-09-12 15:30:02)

IdeaPad U310 touch: Can no longer enter bios after updating to latest version

I flashed to the latest U310 bios (http://download.lenovo.com/consumer/mobiles/65cn99ww.exe). I switched to "legacy boot mode" (from UEFI), in an attempt to workaround a driver issue. Now, I'm no longer able to enter BIOS whatsoever. There are plenty of forum posts by many users hitting the same or similar issues on U310/U410/U330 and similar ideapad products. But the resolutions where they exists are either invalid, or involve flashing to 65cn99ww.exe, which is not possible.
[Environment]
Lenovo IdeaPad U310 touch, Windows 8 (also tried Windows 8.1)
[What I did]
Flashed BIOS using official Lenovo bits (65cn99ww.exe). No errors occured
Enter BIOS afterwards and change to legacy boot mode (from UEFI)
[Problem]
Cannot enter BIOS to view or change any settings.
[Debugging]
Try to enter BIOS by key button sequence.
1. Tried the following combinations during bootup: F2, Fn+Fn, F10, Fn+F10, F1, Fn+F1, 'B', 'N', Fn+'B', Fn+'N', Delete, Esc.
==> No change in behaviour. I tried each many times in case the timing is important.
2. Boot by Novo button. This brings up a menu, which includes an entry to enter BIOS. However, choosing that menu entry boots to Windows
3. Reboot to UEFI firmware settings from Windows (Settings/General/Advanced/UEFI). I can choose to boot to UEFI settings, but ultimately, just boots to Windows 8.
4. Try to reflash BIOS. Fails with error 182: Version less than or equal. So reflash fails
5. Try to reflash old BIOS. Flashing fails
6. Unplug battery from motherboard for 1 minute. No difference in behavior
7. Boot with SATA disconnected.
8. Try various flashing options and alternate ways to flash. Not successful
[Conclusion - BIOS is faulty]
I think this problem can be solved easily with a slightly newer variant of the BIOS being officially released by Lenovo. If someone from Lenovo is reading, can you please open an internal case on this.
Otherwise, I'm open to suggestions from the community. Does anyone know how I can hex edit the bios version #.
Thanks
Solved!
Go to Solution.

All,
When I navigate to the U310T (touch) on the support site, I'm not finding a BIOS update.
It may be that we have removed it. The U310 (non-touch) does still show BIOS 65 available here for Windows 8/8.1 and BIOS 21 on the same page for Windows 7.
Is it possible that you have a touch model and applied the non-touch BIOS?
Mark
ThinkPads: S30, T43, X60t, X1, W700ds, IdeaPad Y710, IdeaCentre: A300, IdeaPad K1
Mark Hopkins
Program Manager, Lenovo Social Media (Services)
twitter @lenovoforums
English Community Deutsche Community Comunidad en Español Русскоязычное Сообщество

Grub2-bios -- yes or no? [SOLVED]

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