That is a lot of lines in that grub.cfg
, I use a real basic one for my multiboot USB's, pretty much a set timeout
& set default
& a few menuentry's...
I tried cutting away all the graphics-related stuff, and functions too, and was left with what might work as a no-frills grub.cfg
to try out (keep the original as a backup, though it is pasted to that github website I'd do a mv
on the original anyway):
set timeout=-1
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-5165d33f-4b1c-41e9-9ca9-e1c831348abc' {
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 5165d33f-4b1c-41e9-9ca9-e1c831348abc
else
search --no-floppy --fs-uuid --set=root 5165d33f-4b1c-41e9-9ca9-e1c831348abc
fi
linux /boot/vmlinuz-3.16.0-29-generic root=UUID=5165d33f-4b1c-41e9-9ca9-e1c831348abc ro quiet splash
initrd /boot/initrd.img-3.16.0-29-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-5165d33f-4b1c-41e9-9ca9-e1c831348abc' {
menuentry 'Ubuntu, with Linux 3.16.0-29-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-29-generic-advanced-5165d33f-4b1c-41e9-9ca9-e1c831348abc' {
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 5165d33f-4b1c-41e9-9ca9-e1c831348abc
else
search --no-floppy --fs-uuid --set=root 5165d33f-4b1c-41e9-9ca9-e1c831348abc
fi
echo 'Loading Linux 3.16.0-29-generic ...'
linux /boot/vmlinuz-3.16.0-29-generic root=UUID=5165d33f-4b1c-41e9-9ca9-e1c831348abc ro quiet splash
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-3.16.0-29-generic
}
menuentry 'Ubuntu, with Linux 3.16.0-29-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-29-generic-recovery-5165d33f-4b1c-41e9-9ca9-e1c831348abc' {
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 5165d33f-4b1c-41e9-9ca9-e1c831348abc
else
search --no-floppy --fs-uuid --set=root 5165d33f-4b1c-41e9-9ca9-e1c831348abc
fi
echo 'Loading Linux 3.16.0-29-generic ...'
linux /boot/vmlinuz-3.16.0-29-generic root=UUID=5165d33f-4b1c-41e9-9ca9-e1c831348abc ro recovery nomodeset
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-3.16.0-29-generic
}
menuentry 'Ubuntu, with Linux 3.16.0-23-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-23-generic-advanced-5165d33f-4b1c-41e9-9ca9-e1c831348abc' {
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 5165d33f-4b1c-41e9-9ca9-e1c831348abc
else
search --no-floppy --fs-uuid --set=root 5165d33f-4b1c-41e9-9ca9-e1c831348abc
fi
echo 'Loading Linux 3.16.0-23-generic ...'
linux /boot/vmlinuz-3.16.0-23-generic root=UUID=5165d33f-4b1c-41e9-9ca9-e1c831348abc ro quiet splash
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-3.16.0-23-generic
}
menuentry 'Ubuntu, with Linux 3.16.0-23-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-23-generic-recovery-5165d33f-4b1c-41e9-9ca9-e1c831348abc' {
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 5165d33f-4b1c-41e9-9ca9-e1c831348abc
else
search --no-floppy --fs-uuid --set=root 5165d33f-4b1c-41e9-9ca9-e1c831348abc
fi
echo 'Loading Linux 3.16.0-23-generic ...'
linux /boot/vmlinuz-3.16.0-23-generic root=UUID=5165d33f-4b1c-41e9-9ca9-e1c831348abc ro recovery nomodeset
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-3.16.0-23-generic
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry 'Memory test (memtest86+)' {
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 5165d33f-4b1c-41e9-9ca9-e1c831348abc
else
search --no-floppy --fs-uuid --set=root 5165d33f-4b1c-41e9-9ca9-e1c831348abc
fi
knetbsd /boot/memtest86+.elf
}
menuentry 'Memory test (memtest86+, serial console 115200)' {
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 5165d33f-4b1c-41e9-9ca9-e1c831348abc
else
search --no-floppy --fs-uuid --set=root 5165d33f-4b1c-41e9-9ca9-e1c831348abc
fi
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
That might be able to at least get GRUB to display something...
nomodeset
?nomodeset
but I don't underhand how to view to try it if I can't find grub. If I hold shift after selecting my external drive in the bios I still get the Bossk screen. Additionally trial Ubuntu boots fine./grub/grub.cfg
) you could look for or add aset timeout=60
line? That might make it wait for a minute before automatically booting? May be other options there, I'm not sureset timeout=60
isn't working. At least not where I'm entering it. I'm attempting to get it to boot withnomodeset
on the laptop.info grub
) setting thetimeout=-1
should make it "wait indefinitely". But maybe GRUB itself is in a funny graphics mode too, I'm not sure what that line might be in thegrub.cfg
file, maybegfxmode
-something... I'm not a GRUB expert, but maybe pasting thegrub.cfg
file could help/