Re: dracut kernel-panci

[Denis Arnaud]

Hi Frank,


On 24/05/12 14:08 UTC, Frank Murphy wrote:

> # dracut initramfs-3.5.0-0.rc0.git3.1.fc18.x86_64

> 3.5.0-0.rc0.git3.1.fc18.x86_64
> F: installkernel failed in module multipat
>
> # rpm -qa | grep multipath
> device-mapper-multipath-libs-0.4.9-22.fc18.x86_64
> device-mapper-multipath-0.4.9-22.fc18.x86_64


I had the same problem, but just on my 32bit Rawhide. Indeed, those
two packages (device-mapper-multipath and
device-mapper-multipath-libs) were installed on the x86_64 Rawhide.

So, the solution/work-around is simple:

# rpm -e device-mapper-multipath-libs-0.4.9-22.fc18.x86_64
device-mapper-multipath-0.4.9-22.fc18.x86_64

# dracut


That time, the initramfs should be created. Just check that it has
been created. For instance:

# ls -l /boot/initramfs-3.5.0-0.rc0.git3.1.fc18.x86_64.img


Then, of course, you have to update the Grub2 configuration, by adding
the following lines to /etc/grub2.cfg:

echo'Loading initial ramdisk ...'
initrd  /initramfs-3.5.0-0.rc0.git3.1.fc18.x86_64.img


Note that, if you do not have a dedicated /boot partition, you should add
the /boot prefix in the above line.

That's basically it.

Regards

Denis
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Re: dracut kernel-panci

[Frank Murphy]

On 23/05/12 10:17, Frank Murphy wrote:

Anyone else have a kernel-panic
with initramfs created by:
dracut-018-74.git20120522.fc18



Can't get anywhere myself so:
https://bugzilla.redhat.com/show_bug.cgi?id=824981


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Re: dracut kernel-panci

[Frank Murphy]

On 24/05/12 14:27, Josh Boyer wrote:

On Thu, May 24, 2012 at 9:08 AM, Frank Murphy  wrote:




Look closely.  You're telling dracut the kernel version is
'kernel-3.5.0' and it takes that very literally.  Remove the
'kernel-' prefix and just use '3.5.0-0.rc0.git3.1.fc18.x86_64'.


After removing prefix:

]# dracut initramfs-3.5.0-0.rc0.git3.1.fc18.x86_64 
3.5.0-0.rc0.git3.1.fc18.x86_64

F: installkernel failed in module multipat

# rpm -qa | grep multipath
device-mapper-multipath-libs-0.4.9-22.fc18.x86_64
device-mapper-multipath-0.4.9-22.fc18.x86_64




None of that explains why there is no initramfs being created from the
kernel update itself though.  If you yum update to today's rawhide
kernel, is one created?


Today's kernel-3.5.0-0.rc0.git5.1.fc18  no auto initramfs,
also same manual fail "multipath"



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Re: dracut kernel-panci

[Josh Boyer]

On Thu, May 24, 2012 at 9:08 AM, Frank Murphy  wrote:
> On 24/05/12 12:53, Josh Boyer wrote:
>>
>>
>> Erm... your grub2 config file you sent previously showed you were using
>> and x86_64 kernel.  Do you even have the i686 kernel installed?  There
>> are clearly modules in the RPM in koji, so I suspect maybe you want to
>> try with x86_64?
>>
>> josh
>
>
> Put up some more info:
> http://frankly3d.eu/kernel-error

dracut initramfs-3.5.0-0.rc0.git3.1.fc18.x86_64
kernel-3.5.0-0.rc0.git3.1.fc18.x86_64
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.x86_64/': No such
file or directory
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.x86_64/': No such
file or directory
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.x86_64/': No such
file or directory
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.x86_64/': No such
file or directory
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.x86_64/': No such
file or directory
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.x86_64/': No such
file or directory
F: installkernel failed in module kernel-modules


ls -R
frank@test08 ~$ su -
Password:
[root@test08 ~]# ls -R /usr/lib/modules/3.5.0-0.rc0.git3.1.fc18.x86_64

Look closely.  You're telling dracut the kernel version is
'kernel-3.5.0' and it takes that very literally.  Remove the
'kernel-' prefix and just use '3.5.0-0.rc0.git3.1.fc18.x86_64'.


None of that explains why there is no initramfs being created from the
kernel update itself though.  If you yum update to today's rawhide
kernel, is one created?

josh
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Re: dracut kernel-panci

[Frank Murphy]

On 24/05/12 12:53, Josh Boyer wrote:


Erm... your grub2 config file you sent previously showed you were using
and x86_64 kernel.  Do you even have the i686 kernel installed?  There
are clearly modules in the RPM in koji, so I suspect maybe you want to
try with x86_64?

josh


Put up some more info:
http://frankly3d.eu/kernel-error


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Re: dracut kernel-panci

[Frank Murphy]

On 24/05/12 12:53, Josh Boyer wrote:


There are mant *ko files in
/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/*


Erm... your grub2 config file you sent previously showed you were using
and x86_64 kernel.  Do you even have the i686 kernel installed?  There
are clearly modules in the RPM in koji, so I suspect maybe you want to
try with x86_64?

josh



Apologies, it happens on both 32 and 64.



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Re: dracut kernel-panci

[Josh Boyer]

On Thu, May 24, 2012 at 7:10 AM, Frank Murphy  wrote:
> On 23/05/12 16:27, Harald Hoyer wrote:
>>
>> Kernel panic - not syncing: VFS: Unable to mount root fs on
>> unknown-block(0,0)
>>
>> this means there was no initramfs even loaded
>>
>> check your bootloader config and the existence of the initramfs image
>
>
> This is what happens when manually trying to create initramfs:
>
> dracut initramfs-3.5.0-0.rc0.git3.1.fc18.i686.img
> kernel-3.5.0-0.rc0.git3.1.fc18.i686
> find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file or
> directory
> find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file or
> directory
> find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file or
> directory
> find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file or
> directory
> find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file or
> directory
> find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file or
> directory
> F: installkernel failed in module kernel-modules
>
> I even installed kernel-modules-extra in case of something there.
>
> There are mant *ko files in
> /lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/*

Erm... your grub2 config file you sent previously showed you were using
and x86_64 kernel.  Do you even have the i686 kernel installed?  There
are clearly modules in the RPM in koji, so I suspect maybe you want to
try with x86_64?

josh
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Re: dracut kernel-panci

[Frank Murphy]

On 23/05/12 16:27, Harald Hoyer wrote:

Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)

this means there was no initramfs even loaded

check your bootloader config and the existence of the initramfs image


This is what happens when manually trying to create initramfs:

dracut initramfs-3.5.0-0.rc0.git3.1.fc18.i686.img 
kernel-3.5.0-0.rc0.git3.1.fc18.i686
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file 
or directory
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file 
or directory
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file 
or directory
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file 
or directory
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file 
or directory
find: `/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/': No such file 
or directory

F: installkernel failed in module kernel-modules

I even installed kernel-modules-extra in case of something there.

There are mant *ko files in
/lib/modules/kernel-3.5.0-0.rc0.git3.1.fc18.i686/*


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Re: dracut kernel-panci

[Frank Murphy]

On 23/05/12 16:27, Harald Hoyer wrote:

Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)

this means there was no initramfs even loaded

check your bootloader config


/boot/grub2/grub.cfg has all the entries most recent shown.

--snipped---
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Fedora (3.5.0-0.rc0.git3.1.fc18.x86_64)' --class fedora 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-simple-34748375-c797-4d5c-9990-3e46f3f74b6f' {

load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint='hd0,gpt2' 
7475273f-7176-4568-92d7-03d91659ca39

else
	  search --no-floppy --fs-uuid --set=root 
7475273f-7176-4568-92d7-03d91659ca39

fi
echo 'Loading Fedora (3.5.0-0.rc0.git3.1.fc18.x86_64)'
	linux	/vmlinuz-3.5.0-0.rc0.git3.1.fc18.x86_64 
root=/dev/mapper/luks-c19c397b-248d-4e6b-9a54-2a5d592f9d0d rd.debug 
rd.shell loglevel=77 ro rd.md=0 rd.lvm=0 rd.dm=0 
rd.luks.uuid=luks-c19c397b-248d-4e6b-9a54-2a5d592f9d0d 
SYSFONT=latarcyrheb-sun16 KEYTABLE=uk LANG=en_IE.UTF-8 console=tty0 
console=ttyS0,115200

echo 'Loading initial ramdisk ...'
}
--snipped-


and the existence of the initramfs image

You are correct here,


dir /boot | grep initramfs
initramfs-3.4.0-0.rc6.git1.1.fc18.x86_64.img
initramfs-3.4.0-0.rc6.git2.2.fc18.x86_64.img
initramfs-3.4.0-0.rc6.git3.1.fc18.x86_64.img
initramfs-3.4.0-0.rc7.git0.1.fc18.x86_64.img
initramfs-3.4.0-0.rc7.git1.1.fc18.x86_64.img
initramfs-3.4.0-0.rc7.git2.1.fc18.x86_64.img
initramfs-3.4.0-0.rc7.git3.1.fc18.x86_64.img
initramfs-3.4.0-0.rc7.git4.1.fc18.x86_64.img
initramfs-3.4.0-0.rc7.git5.1.fc18.x86_64.img
initramfs-3.4.0-0.rc7.git6.1.fc18.x86_64.img

The 3 kernels installed with the new dracut are not created initramfs.

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Re: dracut kernel-panci

[Harald Hoyer]

Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)

this means there was no initramfs even loaded

check your bootloader config and the existence of the initramfs image
Am 23.05.2012 13:09 schrieb "Frank Murphy" :

> On 23/05/12 11:10, Harald Hoyer wrote:
>
>  you can get more debug info, if you add "rd.debug rd.shell loglevel=77"
>> to the
>> kernel command line.
>>
>
> managed to get on to Vm machine.
> panics before getting to above debug switches.
>
>
> Will boot if dracut downgraded to previous:
> dracut-018-53.git20120509.fc18
> and --force initramfs
>
> F17 boxes with dracut-018-40.git20120522.fc17 boot fine.
>
> Full serial console capture with debug switch's included:
> http://frankly3d.eu/kernel-**panic 
>
> --
> Regards,
> Frank
> "Jack of all, fubars"
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Re: dracut kernel-panci

[Frank Murphy]

On 23/05/12 11:10, Harald Hoyer wrote:


you can get more debug info, if you add "rd.debug rd.shell loglevel=77" to the
kernel command line.


managed to get on to Vm machine.
panics before getting to above debug switches.


Will boot if dracut downgraded to previous:
dracut-018-53.git20120509.fc18
and --force initramfs

F17 boxes with dracut-018-40.git20120522.fc17 boot fine.

Full serial console capture with debug switch's included:
http://frankly3d.eu/kernel-panic

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Re: dracut kernel-panci

[Frank Murphy]

On 23/05/12 11:10, Harald Hoyer wrote:

Am 23.05.2012 11:17, schrieb Frank Murphy:

Anyone else have a kernel-panic
with initramfs created by:
dracut-018-74.git20120522.fc18




How exactly does the kernel panic look like? Normally, you are dropped to a 
shell.

you can get more debug info, if you add "rd.debug rd.shell loglevel=77" to the
kernel command line.


This is a snip from  serial console, will get to box later this evening.

[2.474250] Refined TSC clocksource calibration: 2402.495 MHz.
[2.480737] input: ImExPS/2 Generic Explorer Mouse as 
/devices/platform/i8042/serio1/input/input2

[2.486190] md: Waiting for all devices to be available before autodetect
[2.489062] md: If you don't use raid, use raid=noautodetect
[2.496160] md: Autodetecting RAID arrays.
[2.498194] md: Scanned 0 and added 0 devices.
[2.500101] md: autorun ...
[2.501416] md: ... autorun DONE.
[2.503585] VFS: Cannot open root device 
"mapper/luks-c19c397b-248d-4e6b-9a54-2a5d592f9d0d" or 
unknown-block(0,0): error -6
[2.508111] Please append a correct "root=" boot option; here are the 
available partitions:

[2.511797] 0b00 1048575 sr0  driver: sr
[2.513906] Kernel panic - not syncing: VFS: Unable to mount root fs 
on unknown-block(0,0)

[2.521261] Pid: 1, comm: swapper/0 Not tainted 3.4.0-2.fc18.x86_64 #1
[2.521437] usb 1-1: New USB device found, idVendor=0627, idProduct=0001
[2.521440] usb 1-1: New USB device strings: Mfr=1, Product=3, 
SerialNumber=5

[2.521443] usb 1-1: Product: QEMU USB Tablet
[2.521445] usb 1-1: Manufacturer: QEMU 1.0
[2.521447] usb 1-1: SerialNumber: 42
[2.536688] Call Trace:
[2.537934]  [] panic+0xba/0x1cb
[2.541185]  [] mount_block_root+0x1d9/0x28a
[2.543489]  [] mount_root+0x57/0x5b
[2.545699]  [] prepare_namespace+0x13d/0x176
[2.548045]  [] kernel_init+0x1d2/0x1d7
[2.550463]  [] ? do_early_param+0x8c/0x8c
[2.554616]  [] kernel_thread_helper+0x4/0x10
[2.556917]  [] ? retint_restore_args+0x13/0x13
[2.559452]  [] ? start_kernel+0x410/0x410
[2.561622]  [] ? gs_change+0x13/0x13


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Re: dracut kernel-panci

[Harald Hoyer]

Am 23.05.2012 11:17, schrieb Frank Murphy:
> Anyone else have a kernel-panic
> with initramfs created by:
> dracut-018-74.git20120522.fc18
> 
> 

How exactly does the kernel panic look like? Normally, you are dropped to a 
shell.

you can get more debug info, if you add "rd.debug rd.shell loglevel=77" to the
kernel command line.
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dracut kernel-panci

[Frank Murphy]

Anyone else have a kernel-panic
with initramfs created by:
dracut-018-74.git20120522.fc18


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