- #ETC DEFAULTS GRUB INSTALL#
- #ETC DEFAULTS GRUB UPDATE#
- #ETC DEFAULTS GRUB MANUAL#
- #ETC DEFAULTS GRUB WINDOWS 7#
RIP CD,PXE"> OLD MANUAL WAY Using RIP CD,PXE or USB to fix and Ubuntu system with GRUB2 Notes: this script makes most of the changes listed in the Grub Menu Entries Section Below - no hidden menus, save last menu choice, text console, etc.Why? Because /boot/grub can hold several files that keep persistent data that might not (and often does not) get fixed using normal grub tools.) blkid (lists partitions and UUID and partition type).) dhcpcd (start network - make sure you are on a DHCP network that will give the system an address).In the next steps please ignore any /dev/pty related errors in the next steps - harmless.Boot updated RIP - suggest Graphical Mode version 13.7 or higher.RIP CD,PXE or USB to fix a"> Using RIP CD,PXE or USB to fix and Ubuntu system with GRUB2 Easy way - using ubunt-scripts on ASIMOV ) grub-install -root-directory=/mnt /dev/sda.) fdisk -l (find your linux partition and drive).) open a terminal window (look under accessories).
#ETC DEFAULTS GRUB INSTALL#
) Boot Ubuntu 9.10 install CD and choose try without installing (ex.
We assume that /dev/sda5 is the root partition in this example This does not take much time and grantees the results - works mainly due to the fact that there are potentially many files in /boot/grub that can keep persistent data around that impact the repair process Note: For stand alone system I suggest purging and reinstalling Grub as the best overall solution.Therefore we have to install Grub2 in the Ubuntu boot partition - NOT in the MBR!!!!
#ETC DEFAULTS GRUB WINDOWS 7#
Please note that with dual boot windows 7 and Ubuntu we are now using the WIndows boot manager. grub-install -recheck /dev/sdX where X is the boot device a or b or c. Note we run grub-mkconfig because it is not always invoked from grub-update. ) make any changes to /etc/default/grub. When running from a recover disk the command blkid will list all of the system UUID's. /etc/grub.d/ contains rules used to automatically create menu entries in grub.cfg when scanning /boot. Or Create a new files - read the man pages and documentation from grub2 before you try this option. If you wish to add custom rules you can use /etc/grub.d/40_custom. #ETC DEFAULTS GRUB UPDATE#
) Then use grub-mkconfig -o /boot/grub/grub.cfg to update it. 
If you want to change this file you should. See next section on Grub 2 configuration update notes. /etc/default/grub now contains grub defaults. /boot/grub/menu.lst is NOT the main config file any more - now is grub.cfg. Grub 2 Changes from V1 - Important - please read Note - some of these scripts will keep track of the previous contents of a config file and update it - persistence. /etc/grub.d/ - grub scripts that automatically parse the contents of /boot. /boot/grub/default - default boot image choice. /boot/grub/grub.cfg - automatically created config file - some sections will persist across updates. /etc/default/grub - system-wide grub defaults. /boot/grub/grubenv - grub persistent environment. grub-mkconfig - rebuild /boot/grub/grub.cfg. Important Menu Entries and their function. RIP CD,PXE"> OLD MANUAL WAY Using RIP CD,PXE or USB to fix and Ubuntu system with GRUB2. Easy way - using ubunt-scripts on ASIMOV. RIP CD,PXE or USB to fix a"> Using RIP CD,PXE or USB to fix and Ubuntu system with GRUB2. Finding and updating UUIDs when imaging. Grub 2 Changes from V1 - Important - please read.
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