I want to boot Ubuntu into recovery mode but there is no grub menu entry allowing me to do so. I pressed e
and now I am able to edit boot options. It looks like that:
setparams 'Ubuntu , with Linux 3.6.0-26-generic'
recordfail
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set=root <uuid>
linux /boot/vmlinuz-3.5.0-26-generic root=<uuid> ro ipv6.disable=1 quirt splash $vt_handoff
initrd /boot/initrd.img-3.5.0-26-generic
The menu editing examples documentation says:
Boot to the recovery mode even if it is not listed on the menu:
- Remove existing kernel options from the linux line and add single
But this sentence doesn't make any sense, maybe the wiki page is broken somehow. How to modify the boot menu to boot directly into recovery mode?
Note: I don't have access to grub config or anything else, only the boot menu edit page is available.
Best Answer
The instruction
Remove existing kernel options from the linux line and add single
refers to changing the lineto
which will boot up and show a text-mode terminal with root permissions ("single-user mode") from which fixes can be made.
The Ubuntu recovery mode is entered by setting
linux
options thusly:This provides a menu which automates some common system fixes, or lets you access a root shell as the
single
option would.