Re: Recreating a second boot kernel in LILO
On Sat, Jan 14, 2017, at 10:05, Richard Owlett wrote:
> On 1/14/2017 8:45 AM, Miroslav Skoric wrote:
> > Hello all,
> >
> > Intro: I have been using LILO for ages. Now running Wheezy 7.11
> > LTS. As usual and for test purposes on older machines I have two
> > kernel flavours: 486 and 686-rt. In LILO boot menu they appear as
> > Linux486 and Linux686 (before renaming they were Linux and
> > LinuxOLD). Both work nice on two desktops of different age.
> >
> > Anyway, few years ago I had a repetitive problem with the 686-rt
> > kernel slowing down the touch pad on a laptop, so I decided to
> > remove it completely. So in the LILO menu was left just one boot
> > option. Recently I decided to install 686-rt again, and during
> > the installation it added new config*, init.rd*, and vmlinuz*
> > into /boot, but it did not add any new init.rd* and vmlinuz*
> > links into /. And without that LILO still keeps one entry. Any
> > idea how to produce new links in / in order to recreate the
> > second boot entry? (In lilo.conf everything is the same as in
> > desktops, however /sbin/lilo complains about missing links in /)
> >
> > M.S.
>
> You may find Steve Powell's LILO Page useful -
> http://www.stevesdebianstuff.org/lilo.htm
> Also http://www.stevesdebianstuff.org/index.htm may be of interest.
> HTH
>
>
The default installation of lilo assumes that the user is only interested
in booting the two most recently-installed kernels. By Debian convention,
symbolic links are assigned to these kernels in / if "do_symlinks = yes"
is specified in /etc/kernel-img.conf. The most recent kernel
is assigned the symbolic link name "vmlinuz", and the next-most-recent kernel
is assigned the symbolic link name "vmlinuz.old". The same pattern is
followed with the initial RAM file system images that correspond to these
kernel images. The most recent initial RAM file system image is given the
symbolic link name "initrd.img", and the next-most-recent initial RAM file
system image is given the symbolic link name "initrd.img.old". If
"link_in_boot = yes" is present in /etc/kernel-img.conf, then these symbolic
links are maintained in /boot instead of in /. However, these symbolic links
are maintained only for stock Debian kernels. For custom kernels created
with make-kpkg or "make deb-pkg", "do_symlinks = yes" in /etc/kernel-img.conf
has no effect. In my web page, referred to above by Richard Owlett, I provide
a reference to my kernel building web page where there are execs called
zy-symlinks which will provide equivalent function for custom kernels.
If there are special kernels that you want to be able to boot which are outside
the normal "last two", then you must manually edit /etc/lilo.conf to provide
the capability to boot this kernel, then run lilo.
--
.''`. Stephen Powell <zlinuxman@fastmail.com>
: :' :
`. `'`
`-
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