dracut options for installing files and drivers

DISCUSSION Dave Young 3 participants 8 messages May 9, 2012 – May 15, 2012 3 messages not in the archive

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Dave Young

author

2012-05-09 07:35 UTC #0 lore raw

Hi, harald

Dracut options '-I' and '-a' both mean optionally install file/ko

I wonder if dracut intend to do this for some reason. In kdump module user probably need install extra files or kernel modules to kdump initrd, we need to bail out if the files do not exist.

If there's no special reason, how about change it to fail by default for non-exist files? Or need add other options?

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Thanks
Dave

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Harald Hoyer

2012-05-09 12:40 UTC #2 lore raw

Am 09.05.2012 09:35, schrieb Dave Young:

Quoted 3 lines

Hi, harald
Dracut options '-I' and '-a' both mean optionally install file/ko

this is wrong

$ man dracut

"-a" means

-a, --add <list of dracut modules>
add a space-separated list of dracut modules to the default set of
modules. This parameter
can be specified multiple times.

Note
If [LIST] has multiple arguments, then you have to put these in
quotes. For example:

                   # dracut --add "module1 module2"  ...

"-I" means

-I, --install <file list>
install the space separated list of files into the initramfs.

Note
If [LIST] has multiple arguments, then you have to put these in
quotes. For example:

               +

                   # dracut --install "/bin/foo /sbin/bar"  ...

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Dave Young

author

2012-05-10 02:10 UTC #4 lore raw

Quoted 5 lines · Harald Hoyer

Am 09.05.2012 09:35, schrieb Dave Young:
Quoted 3 lines
Hi, harald
Dracut options '-I' and '-a' both mean optionally install file/ko

Quoted 7 lines

this is wrong

$ man dracut

"-a" means

       -a, --add <list of dracut modules>

modules install happens in modules.d/90kernel-modules/module-setup.sh but module-setup.sh does not check the return value of instmods, so it will not fail and exit if no such modules.

Also another problem is there's no check of module install() return status..

Quoted 8 lines

add a space-separated list of dracut modules to the default set of
modules. This parameter
can be specified multiple times.
Note
If [LIST] has multiple arguments, then you have to put these in
quotes. For example:

Quoted 5 lines

                   # dracut --add "module1 module2"  ...

"-I" means

       -I, --install <file list>

See below code, dracut_install -o means "optional install", isn't it?
for item in $install_items; do
dracut_install -o "$item"
done

Quoted 13 lines

install the space separated list of files into the initramfs.
Note
If [LIST] has multiple arguments, then you have to put these in
quotes. For example:
               +

                   # dracut --install "/bin/foo /sbin/bar"  ...
--
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Thanks
Dave

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Dave Young

author

2012-05-10 08:19 UTC #6 lore raw

Quoted 11 lines · Dave Young

Quoted 9 lines · Harald Hoyer
Am 09.05.2012 09:35, schrieb Dave Young:
Quoted 3 lines
Hi, harald
Dracut options '-I' and '-a' both mean optionally install file/ko
this is wrong
$ man dracut

Quoted 8 lines

Quoted 3 lines
"-a" means
       -a, --add <list of dracut modules>
modules install happens in modules.d/90kernel-modules/module-setup.sh but module-setup.sh does not check the return value of instmods, so it will not fail and exit if no such modules.

Oops, I actually means --add-drivers instead of -a

Quoted 40 lines

Also another problem is there's no check of module install() return status..
Quoted 8 lines
add a space-separated list of dracut modules to the default set of
modules. This parameter
can be specified multiple times.
Note
If [LIST] has multiple arguments, then you have to put these in
quotes. For example:
Quoted 5 lines
                   # dracut --add "module1 module2"  ...
"-I" means
       -I, --install <file list>
See below code, dracut_install -o means "optional install", isn't it?
for item in $install_items; do
dracut_install -o "$item"
done
Quoted 13 lines
install the space separated list of files into the initramfs.
Note
If [LIST] has multiple arguments, then you have to put these in
quotes. For example:
               +

                   # dracut --install "/bin/foo /sbin/bar"  ...
--
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Signature · 2 lines

Thanks
Dave

Cong Wang

2012-05-14 06:01 UTC #7 lore raw

Quoted 18 lines · Dave Young

Quoted 16 lines · Dave Young
Quoted 12 lines · Harald Hoyer
Am 09.05.2012 09:35, schrieb Dave Young:
Quoted 3 lines
Hi, harald
Dracut options '-I' and '-a' both mean optionally install file/ko
this is wrong
$ man dracut
"-a" means
       -a, --add <list of dracut modules>

Quoted 7 lines

Quoted 3 lines
modules install happens in modules.d/90kernel-modules/module-setup.sh but module-setup.sh does not check the return value of instmods, so it will not fail and exit if no such modules.
Oops, I actually means --add-drivers instead of -a

Yeah...

% sudo dracut --add-drivers "no-such-module" -I "/no/such/file" -f test.img
E: ssh interactive mode need option --ctty!
F: Failed to install /no/such/file
% echo $?
1

Maybe the following untested patch could fix this??

---

(quoted diff) +0 -0

b/modules.d/90kernel-modules/module-setup.sh
index 26f4784..838088a 100755

modules.d/90kernel-modules/module-setup.sh +0 -0

@@ -58,8 +58,18 @@ installkernel() {
         hostonly='' instmods $drivers
      fi

       -    [[ $add_drivers ]] && hostonly='' instmods $add_drivers
       -    [[ $filesystems ]] && hostonly='' instmods $filesystems
       +    if [[ $add_drivers ]]; then

+ hostonly='' instmods $add_drivers || {
+ dfatal "Failed to install $add_drivers"
+ return 1
+ }
+ fi
+ if [[ $filesystems ]]; then
+ hostonly='' instmods $filesystems || {
+ dfatal "Failed to install $filesystems"
+ return 1
+ }
+ fi

# force install of scsi_wait_scan
hostonly='' instmods scsi_wait_scan

Cong Wang

2012-05-14 06:10 UTC #8 lore raw

Quoted 29 lines · Cong Wang

Quoted 18 lines · Dave Young
Quoted 16 lines · Dave Young
Quoted 12 lines · Harald Hoyer
Am 09.05.2012 09:35, schrieb Dave Young:
Quoted 3 lines
Hi, harald
Dracut options '-I' and '-a' both mean optionally install file/ko
this is wrong
$ man dracut
"-a" means
       -a, --add <list of dracut modules>
Quoted 7 lines
Quoted 3 lines
modules install happens in modules.d/90kernel-modules/module-setup.sh but module-setup.sh does not check the return value of instmods, so it will not fail and exit if no such modules.
Oops, I actually means --add-drivers instead of -a
Yeah...

Quoted 8 lines

% sudo dracut --add-drivers "no-such-module" -I "/no/such/file" -f test.img
E: ssh interactive mode need option --ctty!
F: Failed to install /no/such/file
% echo $?
1
Maybe the following untested patch could fix this??

A better version:

---->

dracut-functions.sh +8 -2

index 8256e02..148dd19 100755
@@ -1168,11 +1168,17 @@ instmods() {
         local _ret=0 _mod _mpargs
         if (($# == 0)); then  # filenames from stdin
             while read _mod; do
-                inst1mod "${_mod%.ko*}"
+                inst1mod "${_mod%.ko*}" || {
+                    dfatal "Failed to install ${_mod%.ko*}"
+                    return 1
+                }
             done
         fi
         while (($# > 0)); do  # filenames as arguments
-            inst1mod ${1%.ko*}
+            inst1mod ${1%.ko*} || {
+                dfatal "Failed to install ${1%.ko*}"
+                return 1
+            }
             shift
         done
         return $_ret

Dave Young

author

2012-05-14 09:39 UTC #9 lore raw

Quoted 9 lines · Cong Wang

Quoted 9 lines
Yeah...
% sudo dracut --add-drivers "no-such-module" -I "/no/such/file" -f test.img
E: ssh interactive mode need option --ctty!
F: Failed to install /no/such/file
% echo $?
1
Maybe the following untested patch could fix this??

Hi, what version of dracut did you use? master branch '-I no/such/file' will not fail... Seems there it is changed to 'dracut -o' in some commit.

Also ./dracut.sh -l --add-drivers "no-such-module" -f test.img return 0 during my test.

Quoted 35 lines

Quoted 1 line

A better version:

---->

dracut-functions.sh +8 -3

index 8256e02..148dd19 100755
@@ -1168,11 +1168,17 @@ instmods() {
         local _ret=0 _mod _mpargs
         if (($# == 0)); then  # filenames from stdin
             while read _mod; do
-                inst1mod "${_mod%.ko*}"
+                inst1mod "${_mod%.ko*}" || {
+                    dfatal "Failed to install ${_mod%.ko*}"
+                    return 1
+                }
             done
         fi
         while (($# > 0)); do  # filenames as arguments
-            inst1mod ${1%.ko*}
+            inst1mod ${1%.ko*} || {
+                dfatal "Failed to install ${1%.ko*}"
+                return 1
+            }
             shift
         done
         return $_ret
 
--

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Signature · 2 lines

Thanks
Dave

Cong Wang

2012-05-15 03:00 UTC #10 lore raw

Quoted 10 lines · Dave Young

Quoted 8 lines · Cong Wang
Quoted 8 lines
Yeah...
% sudo dracut --add-drivers "no-such-module" -I "/no/such/file" -f test.img
E: ssh interactive mode need option --ctty!
F: Failed to install /no/such/file
% echo $?
1

Quoted 9 lines

Quoted 1 line
Quoted 1 line
Maybe the following untested patch could fix this??
Hi, what version of dracut did you use? master branch '-I no/such/file' will not fail... Seems there it is changed to 'dracut -o' in some commit.
Also ./dracut.sh -l --add-drivers "no-such-module" -f test.img return 0 during my test.

Yeah, I used an old version of dracut, the following commit changed that without a reason:

commit c6c6a08850c7e4ee211696895f7ca3864be85052

Author: Harald Hoyer <[email protected]>
Date:   Tue Feb 7 18:26:30 2012 +0100

add "install_items" to dracut.conf

I will send a patch to fix this too.

Thanks!