Diff for "forum/hardware/LenovoB570"

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⇤ ← Revision 12 as of 2012-05-22 08:52:12 →
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Editor: yannubuntu
Comment: added GUI repair
← Revision 15 as of 2017-10-09 17:36:03 → ⇥
Size: 1613
Editor: 106
Comment: Removed dedicated GPU mention as it doesn't have one and other small fixes
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= Lenovo B570 Installation Problems and Repair = B570 is an entry level laptop released by Lenovo in 2011.
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This page exists to address a problem ([[https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/908109|bug #908109]]) present in Ubuntu when attempting to install to a Lenovo B570. It exists in some other distributions, and it is likely a quirk of the B570 hardware -- although it could be a bug in the kernel or installation process.
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''If there is a problem with this page, edit it, ask in the forums, or send me a message [[https://launchpad.net/~eode|here]] but '''don't''' post in the launchpad bug for support.''
 
There is a problem with installation when:
 * You're using the Lenovo B570
 * You're trying to install the 64-bit version
 * Your system uses MBR
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This problem shows up as:
 * Installation completes, and asks you to reboot
 * the system doesn't boot, or boots back into Windows without prompting you to choose.		 = Configurations =
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This problem is fixable, but it can cause a lot of headaches, particularly if you don't know what the problem is. There are models with i5, i3 and Pentium processors (models B800 and B950), HDDs between 500-750 GB, RAMs between 2-4 GB DDR3, Qualcomm Atheros or Intel Wi-Fi cards with some models not having Bluetooth 2.1 that comes with the others.
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'''The fix, for advanced users:''' Boot from the install cd, chroot into the ubuntu partition of your hard disk, and install grub-pc. You will probably need to install it to the MBR as well, since Lenovo has a lot of partitions by default, and generally Ubuntu will install to sda6, which isn't directly bootable with a boot flag. All models contain:
 * 15.6" WXGA (1366x768) resolution display
 * 12.7 mm high DVD±RW drive with dual layer support
 * 0.3 MP webcam fixed focus webcam
 * Egistec ES603 fingerprint sensor
 * Intel HM65 Express chipsets
 * full size keyboard with numeric keypads and cramped direction buttons placement
 * Realtek 6-in-1 card reader (support for SD, SDHC and xD Picture cards)
 * 3 USB 2.0 ports and 1 USB 2.0/eSATA combo port
 * Synaptics multitouch touchpad with two-buttons
 * 6-cell Li-ion batteries with a backup of about 2-3 hours when new
 * M.2 port for GPS/3G module or more commonly, an SSD
 * Realtek RTL8111E Gigabit Ethernet
 * Realtek ALC272 codec audio chips
 * VGA and HDMI ports
 * SATA II 3.0 Gb/s interface
 * two RAM slots
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'''A workaround, for very non-technical users with 4 gigs of memory or less:''': Use the 32-bit version of Ubuntu.
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'''For users willing to perform some shenanigans<<FootNote(Shenanigans, I say!)>> to get a 64-bit system:''' Read on.
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== What is happening == = General Issues =
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There are two ways of dividing a disk into partitions (sections): MBR and GPT. There are two standards for initializing your system: BIOS and UEFI. BIOS only knows about MBR. UEFI knows about GPT and MBR.  * The Atheros cards (model AR9285) generally have issues of disconnection with various workarounds required for smooth working
 * Previous Ubuntu versions would show black screen when booting into a live environment but recent Ubuntu versions boot fine
 * Brightness keys won't work unless a special Intel backlight config file is created (as mentioned [[https://itsfoss.com/fix-brightness-ubuntu-1310/]])
 * UEFI is supported but buggy in its current implementation
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The Lenovo B570 ships with a UEFI that can use MBR. At least some of them ship with disks partitioned using MBR. The basic problem appears to be that the installer gets confused about whether to use an MBR or GPT version of GRUB (the thing that gives you the option to boot into Ubuntu or Windows). It is unknown at this time whether this is a bug in Ubuntu or whether it is a bug in the Lenovo B570.

For most people, this means that it will boot straight to Windows after installing Ubuntu, without giving the user an option to start Ubuntu. For some, it leaves them with a system that doesn't boot.

== Solution ==

The problem can be solved via the Boot-Repair tool, or via command lines. Please choose the one you prefer below.

=== Solution 1: Graphical repair ===

  * run [[Boot-Repair]] (from a live-CD)
  * click "Advanced options"
  * click "GRUB location"
  * '''untick''' the "Separate /boot/efi" option
  * click "Apply".

{{http://pix.toile-libre.org/upload/original/1337676659.png}}

=== Solution 2: Manual Repair ===

Follow these instructions for manual repair:

'''WARNING''': If done wrong, or if something else is different between my system and yours, this may cause you to lose the data on your hard drive. Back up your hard drive, and make sure you know how to restore it as well. If you don't, get a more technically-inclined friend to do this for you, and do something nice for him/her in return.

 * Boot from CD/USB live image
 * Connect to the network
 * Find and mount the Ubuntu partition you installed to. To do so:
  * Launch "Files" from the icons on the left
  * Select the partition you installed Ubuntu to earlier from the "Devices" list on the left.
 * right-click on this partition in nautilus (it's in the list on the left), and click 'properties'
 * copy the name field, and when typing commands below, replace name_of_mount with that text. It will probably be something like "563451BD58A19D16"
 * Open a terminal
 * Execute the following (don't forget to change name_of_mount):
 {{{
MOUNTPOINT="/media/name_of_mount"
if grep -q "Ubuntu 12.04" $MOUNTPOINT/etc/lsb-release; then
    mount | grep $MOUNTPOINT | awk '{print $1}'
fi
}}}
  * This should respond with something like "/dev/sda6"
   * If it does not, then check over to ensure you've done the above steps correctly (specifically, make sure you've got the name_of_mount right)
   * This ''must'' start with ''/dev/sda''
   * ''if it does not, this fix is not for you, and may break things further, so don't bother unless you know what you're doing.''
   * If it does start with /dev/sda, the number on the end is the partition number, and you'll need it in a bit.
 * In the same terminal you used above, execute the following, one by one, and keep an eye out for errors. Lines that start with "#" are comments.
 {{{
cd $MOUNTPOINT
sudo mount -o bind /proc proc
sudo mount -o bind /sys sys
sudo mount -o bind /dev dev
sudo chroot ./

apt-get update
apt-get install -y grub-pc

# You should only need to do this line if your partition number is 5 or higher.
# leave off the partition number.
grub-install /dev/sda

exit
sudo umount proc
sudo umount sys
sudo umount dev
sudo sync # calling sync isn't really that necessary, but doesn't hurt.
sudo shutdown -r now
}}}
 * At this point, the system should reboot, and give you the choice between Ubuntu and Windows (or just Ubuntu, depending on your install).

Footnotes:		 ----
CategoryHardware

B570 is an entry level laptop released by Lenovo in 2011.

Configurations

There are models with i5, i3 and Pentium processors (models B800 and B950), HDDs between 500-750 GB, RAMs between 2-4 GB DDR3, Qualcomm Atheros or Intel Wi-Fi cards with some models not having Bluetooth 2.1 that comes with the others.

All models contain:

  • 15.6" WXGA (1366x768) resolution display
  • 12.7 mm high DVD±RW drive with dual layer support
  • 0.3 MP webcam fixed focus webcam
  • Egistec ES603 fingerprint sensor
  • Intel HM65 Express chipsets
  • full size keyboard with numeric keypads and cramped direction buttons placement
  • Realtek 6-in-1 card reader (support for SD, SDHC and xD Picture cards)
  • 3 USB 2.0 ports and 1 USB 2.0/eSATA combo port
  • Synaptics multitouch touchpad with two-buttons
  • 6-cell Li-ion batteries with a backup of about 2-3 hours when new
  • M.2 port for GPS/3G module or more commonly, an SSD
  • Realtek RTL8111E Gigabit Ethernet
  • Realtek ALC272 codec audio chips
  • VGA and HDMI ports
  • SATA II 3.0 Gb/s interface
  • two RAM slots

General Issues

  • The Atheros cards (model AR9285) generally have issues of disconnection with various workarounds required for smooth working
  • Previous Ubuntu versions would show black screen when booting into a live environment but recent Ubuntu versions boot fine

  • Brightness keys won't work unless a special Intel backlight config file is created (as mentioned https://itsfoss.com/fix-brightness-ubuntu-1310/)

  • UEFI is supported but buggy in its current implementation

CategoryHardware

forum/hardware/LenovoB570 (last edited 2017-10-09 17:36:03 by 106)