[Libguestfs] [PATCH v3 1/2] v2v: linux: correctly reconfigure the initrd on Debian
Richard W.M. Jones
rjones at redhat.com
Tue Sep 13 14:29:42 UTC 2016
On Tue, Sep 13, 2016 at 03:51:13PM +0200, Tomáš Golembiovský wrote:
> Using update-initramfs is the native way of updating initrd on Debian
> based systems.
>
> Signed-off-by: Tomáš Golembiovský <tgolembi at redhat.com>
> ---
> v2v/convert_linux.ml | 21 +++++++++++++++++++++
> 1 file changed, 21 insertions(+)
>
> diff --git a/v2v/convert_linux.ml b/v2v/convert_linux.ml
> index 08f4b2a..b09d03e 100644
> --- a/v2v/convert_linux.ml
> +++ b/v2v/convert_linux.ml
> @@ -478,6 +478,15 @@ let rec convert ~keep_serial_console (g : G.guestfs) inspect source rcaps =
> ignore (g#command (Array.of_list args))
> in
>
> + let run_update_initramfs_command () =
> + let args =
> + "/usr/sbin/update-initramfs" ::
> + (if verbose () then [ "-v" ] else [])
> + @ [ "-c"; "-k"; mkinitrd_kv ]
> + in
> + ignore (g#command (Array.of_list args))
> + in
> +
> if g#is_file ~followsymlinks:true "/sbin/dracut" then
> run_dracut_command "/sbin/dracut"
> else if g#is_file ~followsymlinks:true "/usr/bin/dracut" then
> @@ -491,6 +500,18 @@ let rec convert ~keep_serial_console (g : G.guestfs) inspect source rcaps =
> "-k"; kernel.ki_vmlinuz |]
> )
> )
> + else if family = `Debian_family then (
> + if not (g#is_file ~followsymlinks:true "/usr/sbin/update-initramfs") then
> + error (f_"unable to rebuild initrd (%s) because update-initramfs was not found in the guest")
> + initrd;
> +
> + (* The modules to add to initrd are defined in a file. *)
> + let modules = String.concat "\n" modules in
> + let modules = "#\n# Added by virt-v2v\n" ^ modules ^ "\n" in
> + ignore (g#write_append "/etc/initramfs-tools/modules" modules);
I suspect this won't work if the file doesn't already end with a \n
Rich.
> + run_update_initramfs_command ()
> + )
> else if g#is_file ~followsymlinks:true "/sbin/mkinitrd" then (
> let module_args = List.map (sprintf "--with=%s") modules in
> let args =
> --
> 2.9.3
>
>
>
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--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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