This is the script to modify menu.txt. It modifies the file in-place. It'd be safer to omit sed's '-i' switch in the second line, and let it print out the new version of menu.txt (redirect it into a new file); so that the original is kept untouched.
Hi all,
I would like to have some details on menu.lst!!
the reason is ,if i am trying to add my own boot option where do i need to add it?
is it in menu.lst only or elsewere(am referring to unix os)
because i tried adding a unique boot option and it was not reflected when the system booted?... (8 Replies)
Hi folks,
I have a dual-boot Ubuntu/Windows machine and I wanted to create a script to change the menu.lst file so it will change the default boot partition (this is so I can reload the machine remotely and allow it to boot to the Windows partition).
Today I have to sudo cp a template file I... (1 Reply)
Hello Experts,
Is there a way to generate Universally Unique identifiers on all Unix flavours such as Solaris, RHELinux,Suse Linux, MacOS,HP UX etc?
If i can get a system command or a system call or an algorithm/script/program to generate a unique identifier, it will be helpful.
Thanks in... (1 Reply)
I am trying to install three OS (Windows VISTA, OpenSUSE 11.3 & Solaris 11 Express) on a single drive of a laptop. However when I go to edit the /rpool/boot/grub/menu.lst to put the entry so it can boot the OpenSUSE 11.3 I get errors some of which result into starting all over again. I have also... (0 Replies)
I have partitioned and installed Windows Vista, OpenSUSE and Solaris 11 Express on a LapTop hardDrive. However I am not able to boot OpenSUSE 11.3 although I have it in menu.lst which I put in a Solaris partition directory /rpool/boot/grub. Could someone tell me how to go about it. See what I did... (2 Replies)
I am trying to install three OS (Windows VISTA, OpenSUSE 11.3 & Solaris 11 Express) on a single drive of a laptop. However when I go to edit the /rpool/boot/grub/menu.lst to put the entry so it can boot the OpenSUSE 11.3 I get errors some of which result into starting all over again. I have also... (3 Replies)
I am not able to find menu.lst in /boot.
During the Linux Kernel Compilation I installed the kernel using make install.
Next I created an initrd image.
I had to modify the Grub configuration file - /boot/grub/menu.lst which I am not able to find.
Any resolution for the issue? (3 Replies)
Hi,
Need a bit of help on this one as I am a scripting noob.
I have a linux based NAS that mounts USB hard drives in an inconsistent location and to make matters worse, seems to lose the mount for an unknown reason and doesn't remount automatically unless the drive is removed and re-inserted.... (4 Replies)
I thought I had figured this out at one point, but I can't remember. Is there a way/command to get the UUIDs of a disk's partitions/slices in FreeBSD? Linux has the blkid command, which doesn't seem to be available. (2 Replies)
Discussion started by: AntumDeluge
2 Replies
LEARN ABOUT DEBIAN
update-grub
update-grub(8) System Manager's Manual update-grub(8)NAME
update-grub - program to generate GRUB's menu.lst file
SYNOPSIS
update-grub
DESCRIPTION
update-grub is a program used to generate the menu.lst file used by the grub bootloader. It works by looking in /boot for all files which
start with "vmlinuz-". They will be treated as kernels, and grub menu entries will be created for each. It will also create the initial
menu.lst if none exists, after prompting the user. It will also add initrd lines for ramdisk images found with the same version as kernels
found. e.g. /boot/vmlinuz-2.4.5 and /boot/initrd-2.4.5 will cause a line of "initrd=/boot/initrd-2.4.5 or similar to be added for the ker-
nel entry in the menu.lst.
After update-grub has been run for the first time, the user is required to edit the generated menu.lst. The user must set the two options
update-grub uses. Then re-run the update-grub script to update the menu.lst file using the default's that have been set.
These are the options passed to the linux kernel:
# kopt=root=/dev/hda1 ro
Everything after "kopt=" is passed to the kernel as parameters. See bootparam(7) for more information.
This is the grub device from which grub loads the kernel:
# groot=(hd0,1)
(hd0,1) is a partition in grub notation. See grub(8) for more information.
This option controls if grub should create the alternative boot options in the menu entries
# alternative=true
# alternative=false
This option controls if grub should lock the alternative boot options see grub(8) for more information.
# lockalternative=true
# lockalternative=false
This option controls if grub should lock the old kernels.
# lockold=true
# lockold=false
This options controls what is used for the alternative boot options, multiple altoptions lines are allowed.
# altoptions=(some description) some kernel command line options
# altoptions=(recovery option) single
The description is placed in '()' and the kernel command line options follow that.
# updatedefault=true
# updatedefault=false
This option controls if grub should update the default entry to keep booting the same kernel even if a new one is installed.
The update-grub script can be ran automagically from the /etc/kernel-img.conf file by adding the following lines:
postinst_hook = update-grub
postrm_hook = update-grub
do_bootloader = no
For further information related to /etc/kernel-img.conf, see the manpage kernel-img.conf(5).
SEE ALSO grub(8), grub-install(8), kernel-img.conf(5) (contained in the kernel-package package), bootparam(7).
The full documentation for grub is maintained as a Texinfo manual in the grub-legacy-doc package. If the info and grub programs are prop-
erly installed at your site, the command
info grub
should give you access to the complete manual.
AUTHOR
This manual page was written by Jason Thomas <jason@debian.org>, for the Debian GNU/Linux system (but may be used by others).
Jason Thomas June 18, 2001 update-grub(8)