Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

by accident I removed initial sector and could not boot neither system. Now I`ve setup a grub where I can at least boot windows. I still have the config files from syslinux in: /dev/sdb5

Grub and Syslinux are there. Before the removal I was using syslinux.

Syslinux.conf holds the following contents:

# Config file for Syslinux -
# /boot/syslinux/syslinux.cfg
# Comboot modules:
#   * menu.c32 - provides a text menu
#   * vesamenu.c32 - provides a graphical menu
#   * chain.c32 - chainload MBRs, partition boot sectors, Windows bootloaders
#   * hdt.c32 - hardware detection tool
#   * reboot.c32 - reboots the system
#   * - shutdown the system
# To Use: Copy the respective files from /usr/lib/syslinux to /boot/syslinux.
# If /usr and /boot are on the same file system, symlink the files instead
# of copying them.
# If you do not use a menu, a 'boot:' prompt will be shown and the system
# will boot automatically after 5 seconds.
# Please review the wiki:
# The wiki provides further configuration examples

PROMPT 0        # Set to 1 if you always want to display the boot: prompt 
# You can create syslinux keymaps with the keytab-lilo tool
#KBDMAP de.ktl

# Menu Configuration
# Either menu.c32 or vesamenu32.c32 must be copied to /boot/syslinux 
UI menu.c32
#UI vesamenu.c32

# Refer to
MENU COLOR border       30;44   #40ffffff #a0000000 std
MENU COLOR title        1;36;44 #9033ccff #a0000000 std
MENU COLOR sel          7;37;40 #e0ffffff #20ffffff all
MENU COLOR unsel        37;44   #50ffffff #a0000000 std
MENU COLOR help         37;40   #c0ffffff #a0000000 std
MENU COLOR timeout_msg  37;40   #80ffffff #00000000 std
MENU COLOR timeout      1;37;40 #c0ffffff #00000000 std
MENU COLOR msg07        37;40   #90ffffff #a0000000 std
MENU COLOR tabmsg       31;40   #30ffffff #00000000 std

# boot sections follow
# TIP: If you want a 1024x768 framebuffer, add "vga=773" to your kernel line.

LABEL arch
    MENU LABEL Arch Linux
    LINUX ../vmlinuz-linux
    APPEND root=UUID=8084cf06-452a-4e04-a89a-0f017461b727 ro quiet
    INITRD ../initramfs-linux.img

LABEL archfallback
    MENU LABEL Arch Linux Fallback
    LINUX ../vmlinuz-linux
    APPEND root=UUID=8084cf06-452a-4e04-a89a-0f017461b727 ro
    INITRD ../initramfs-linux-fallback.img

LABEL windows
        MENU LABEL Windows
        COM32 chain.c32
        APPEND hd0 1

        MENU LABEL HDT (Hardware Detection Tool)
        COM32 hdt.c32

LABEL reboot
        MENU LABEL Reboot
        COM32 reboot.c32

        MENU LABEL Power Off

Arch is located at /dev/sdb3

I would like to recover it. Is it possible? At the momment. I have grub able to boot windows. Can I make the transition back to my old syslinux? If so how should I proceed?

I also have grub in /dev/sdb3 where arch is located. How do I set /dev/sdb5 back to the "default" loader?

share|improve this question

Fixed with help of people in #arch at freenode.

All I had to to was to run syslinux-install_update -iam /dev/sdb and it did rewrite my mbr.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.