My grub_timeout is 1 second and grub_default is win-10, now i cant boot into Ubuntu 18.1. The grub is directly taking lap to win-10 and grub doesn't respond to any input. How to change the grub_timeout in this condition ?
I'm getting the following error
I followed instructions from this video: https://www.youtube.com/watch?v=GaCbTe1eEes
Recently I just downloaded Ubuntu-18.10-desktop-amd64 and make a bootable USB by universal usb installer. But when I boot this on my laptop it's showing following errors :
Booting 'Boot ubuntu-18.10-desktop-amd64'
(hd0,0)
Filesystem type is iso9660_Joliet, using whole disk [Linux-bzImage, setup=0x4200, size=0x821b58]
initrd /casper/ILUG
Error 15:(http://grub4dos.chenall.net/e/15) File not found
Press any key to continue...
How can I solve this?
I am using grub4dos 0.4.4 to boot Ubuntu 17.04 successfully. Here are lines in the file MENU.LST
title Ubuntu 17 (64bit)
fallback 6
find --set-root /iso/ubt1704.iso
map --mem /iso/ubt1704.iso (0xff) || map --heads=0 --sectors-per-track=0 /iso/ubt1704.iso (0xff)
map --hook
root (0xff)
kernel /casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper iso-scan/filename=/iso/ubt1704.iso splash
initrd /casper/initrd.lz
But for Ubuntu 18.04, they did not work. The computer restarted after menu Ubuntu 18.04 was selected.
Please help me to fix the problem. Thanks in advanced.
Update on 15-Aug-2018.
I have changed the content of MENU.LST as bellow and it worked.
find --set-root /iso/ubt1804.iso
map --mem /iso/ubt1804.iso (0xff) || map --heads=0 --sectors-per-track=0 /iso/ubt1804.iso (0xff)
map --hook
root (0xff)
kernel /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper iso-scan/filename=/iso/ubt1804.iso splash
initrd /casper/initrd.lz
How to configure Grub4dos to boot Ubuntu 16.04?
This is my command lines in menu.lst:
title Run Ubuntu 16.04 Server
find --set-root --ignore-floppies --ignore-cd /iso/ubuntu-16.04-server-amd64.iso
map --heads=0 --sectors-per-track=0 /iso/ubuntu-16.04-server-amd64.iso (hd32)
map --hook
chainloader (hd32)
I can boot the Installation of Ubuntu 16.04 Environment. But I think in step 4, the system says something like it tries to mount CD-ROM displays the following error message:
Your installation CD-ROM coundn't be mounted. This probably means that the CD-ROM was not in the drive. If so you can insert it and try again.
After some readings, I have tried with another command lines as follow:
title Run Ubuntu 16.04 Server
find --set-root /iso/ubuntu-16.04-server-amd64.iso
map /iso/ubuntu-16.04-server-amd64.iso (0xff) || map --mem /iso/ubuntu-16.04-server-amd64.iso (0xff)
map --hook
root (0xff)
kernel /casper/vmlinuz.efi file=/preseed/ubuntu.seed noprompt boot=casper iso-scan/filename=/iso/ubuntu-16.04-server-amd64.iso quiet splash --
initrd /casper/initrd.lz
and this time I failed to boot and the Grub4Dos displays the following error message:
Error 62: The number of heads must be specified. The '--heads=0' option tells map to choose a value (but maybe unsuitable) for you
What is the correct command lines?