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v2v: linux: correctly reconfigure the initrd on Debian

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Using update-initramfs is the native way of updating initrd on Debian
based systems.

To add some modules to the image we can list them in file
/etc/initramfs-tools/modules.

Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
This commit is contained in:
Tomáš Golembiovský
2016-09-20 12:55:42 +02:00
committed by Pino Toscano
parent 4c3968f262
commit 967280566d
1 changed files with 32 additions and 0 deletions
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32
v2v/convert_linux.ml
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@@ -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 +500,29 @@ 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;
if List.length modules > 0 then (
(* The modules to add to initrd are defined in:
* /etc/initramfs-tools/modules
* File format is same as modules(5).
*)
let path = "/files/etc/initramfs-tools/modules" in
g#aug_transform "modules" "/etc/initramfs-tools/modules";
Linux.augeas_reload g;
g#aug_set (sprintf "%s/#comment[last()+1]" path)
"The following modules were added by virt-v2v";
List.iter (
fun m -> g#aug_clear (sprintf "%s/%s" path m)
) modules;
g#aug_save ();
);
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 =