[SOLVED] About booting screen

[satimis]

Hi folks,

Ubuntu 9.10 64bit

Grub2 doesn't have menu.lst. If I want to remove on the booting screen, e.g.

Ubuntu, linux 2.6.27-2-generic
Ubuntu, linux 2.6.27-2-generic (single-user mode)

How to do it? TIA

B.R.
satimis

[oz]

I run GRUB2 on Arch and it's currently configured differently than GRUB2 on Ubuntu, but you can check this guide in the Ubuntu wiki for working with their implementation of GRUB2:

https://wiki.ubuntu.com/Grub2

[devils casper]

Do you want to hide GRUB Menu or remove a few options from it?

[Leppie]

to remove menu entries for old kernel versions you're no longer using, go into synaptic (System>Administration>Synaptic) and type the kernel version (e.g. 2.6.27-2) in the quick search box. then right click all the installed packages for that specific kernel version and choose "remove". click the green check button to apply the changes.
afterwards the entries should no longer show in your grub2 menu.
NOTE: be careful not to remove the packages for the kernel you're currently using.

[satimis]

I run GRUB2 on Arch and it's currently configured differently than GRUB2 on Ubuntu, but you can check this guide in the Ubuntu wiki for working with their implementation of GRUB2:

https://wiki.ubuntu.com/Grub2

Hi ozar,

Thanks for your link

satimis

[satimis]

Do you want to hide GRUB Menu or remove a few options from it?

Hi devils casper,

To remove the old kernel, stopping it showing on the table.

There are 2 old kernels there. I expect removing the older one.

B.R.
satimis

[satimis]

to remove menu entries for old kernel versions you're no longer using, go into synaptic (System>Administration>Synaptic) and type the kernel version (e.g. 2.6.27-2) in the quick search box. then right click all the installed packages for that specific kernel version and choose "remove". click the green check button to apply the changes.
afterwards the entries should no longer show in your grub2 menu.
NOTE: be careful not to remove the packages for the kernel you're currently using.

Hi Leppie,

Thanks for your advice. I expect to do it in a safe way, just commenting it out. In case of need I can uncomment it.

B.R.
satimis

[devils casper]

Two ways :

*1. Edit /boot/grub/grub.cfg file and comment out entry for older kernel. But it won't be permanent. update-grub command generates new grub.cfg on every execution.

*2. Create a new custom file ( /etc/grub.d/08_linux ) and add an entry of new kernel in it. Remove execution bit of /etc/grub.d/10_linux file. update-grub command will not add any entry of older kernel. There is one problem in this method only. You have to add entry of new kernel in custom file on every kernel upgrade.

[satimis]

Two ways :

*1. Edit /boot/grub/grub.cfg file and comment out entry for older kernel. But it won't be permanent. update-grub command generates new grub.cfg on every execution.

- snip -

$ sudo nano /boot/grub/grub.cfg

Comment out following lines

#menuentry "Ubuntu, Linux 2.6.31-19-generic" {
#        recordfail=1
#        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
#       set quiet=1
#       insmod ext2
#       set root=(hd0,1)
#       search --no-floppy --fs-uuid --set 4ff364c6-c510-4f46-93df-902590749a76
#       linux   /boot/vmlinuz-2.6.31-19-generic root=UUID=4ff364c6-c510-4f46-93df$
#       initrd  /boot/initrd.img-2.6.31-19-generic
#}
#menuentry "Ubuntu, Linux 2.6.31-19-generic (recovery mode)" {
#        recordfail=1
#        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
#       insmod ext2
#       set root=(hd0,1)
#       search --no-floppy --fs-uuid --set 4ff364c6-c510-4f46-93df-902590749a76
#       linux   /boot/vmlinuz-2.6.31-19-generic root=UUID=4ff364c6-c510-4f46-93df$
#       initrd  /boot/initrd.img-2.6.31-19-generic
#}

Reboot

Your advice works for me. Thanks


$ sudo update-grub

Generating grub.cfg ...
Found linux image: /boot/vmlinuz-2.6.31-20-generic
Found initrd image: /boot/initrd.img-2.6.31-20-generic
Found linux image: /boot/vmlinuz-2.6.31-19-generic
Found initrd image: /boot/initrd.img-2.6.31-19-generic
Found memtest86+ image: /boot/memtest86+.bin
Found Windows Vista (loader) on /dev/sdb1
done

This step uncomments those lines previously commented out.


B.R.
satimis

[devils casper]

There is no need to execute update-grub command because it generates new grub.cfg on every execution.