How to backup whole linux system?

Angela Wu · 06-26-2013, 01:59 AM

It stays in BusyBox v1.18.5 build-in shell (ash)
and got only part of command as the previous one.

evo2 · 06-26-2013, 02:20 AM

Hi,

Quote:

It stays in BusyBox v1.18.5 build-in shell (ash)
and got only part of command as the previous one.

Ok, so the problem looks the similar with the config based on the ubuntu 3.5 kernel.

In one of your previous screen shots
https://www.linuxquestions.org/quest...5&d=1372210388
there is a message saying devtmpfs is not available. Is that the same as this time? And what is the output of the following for each config file?

Code:

grep DEVTMPFS .config

Also are you able to manually mount the root partition?

And is your company looking for a consultant? ;-)

Evo2.

Angela Wu · 06-26-2013, 02:31 AM

Quote:

Originally Posted by evo2

Hi,

Ok, so the problem looks the similar with the config based on the ubuntu 3.5 kernel.

In one of your previous screen shots
https://www.linuxquestions.org/quest...5&d=1372210388
there is a message saying devtmpfs is not available. Is that the same as this time? And what is the output of the following for each config file?

Code:

grep DEVTMPFS .config

Also are you able to manually mount the root partition?

And is your company looking for a consultant? ;-)

Evo2.

Code:

angela@ubuntu:~/linux-3.6.11$ grep DEVTMPFS .config
# CONFIG_DEVTMPFS is not set

And I don't know what you means manually mount
root patrition, sorry I can't

Our company is a small company. If you'd like to be our consultant.
Welcome~~~

evo2 · 06-26-2013, 02:40 AM

Hi,

Quote:

Originally Posted by Angela Wu

Code:

angela@ubuntu:~/linux-3.6.11$ grep DEVTMPFS .config
# CONFIG_DEVTMPFS is not set

Ahh! That variable needs to be set to "y"!

For example if I run that grep on the config from the ubuntu kernel:

Code:

grep DEVTMPFS config-3.5.0-27-generic
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y

This needs to be fixed. Please try to build a kernel using after copying config-3.5.0-27-generic to .config in the kernel source tree.

Quote:

And I don't know what you means manually mount
root patrition, sorry I can't

I think that is not important now that we've discovered the missing devtmpfs setting.

Quote:

Our company is a small company. If you'd like to be our consultant.
Welcome~~~

I was just joking.

Evo2.

Angela Wu · 06-26-2013, 03:58 AM

It's a pity to tell you that.
mount: on /root/dev ,/root/sys, /root/proc failed
no such file or directory

Code:

Target filesystem doesn't have requested /sbin/init.
No init found. Try passing init=bootarg.

Help~

evo2 · 06-26-2013, 04:06 AM

Hi,

so is seems there are still problems mounting the root files system.

What did you do? Did you build a kernel using config-3.5.0-27-generic? Has the "devtmpfs not available" message gone now?

Can you post some screenshots or photos of what the terminal is showing? Another useful thing might be to post the config you used.

I probably won't be online much for the rest of the day, but I will have a look again tomorrow.

Evo2.

Angela Wu · 06-26-2013, 04:41 AM

Quote:

Originally Posted by evo2

Hi,

so is seems there are still problems mounting the root files system.

What did you do? Did you build a kernel using config-3.5.0-27-generic?

Quote:

yes

Has the "devtmpfs not available" message gone now?

Quote:

yes

Can you post some screenshots or photos of what the terminal is showing?

Click image for larger version

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Another useful thing might be to post the config you used.

I probably won't be online much for the rest of the day, but I will have a look again tomorrow.

Evo2.

later I will attached for the .config file

Angela Wu · 06-26-2013, 04:47 AM

HI~
attached for the file .config
Config.txt

frieza · 06-26-2013, 09:24 AM

hmm, could be your boot loader config, try taking out the UUID= directive and pointing it at the raw /dev/sdXY device node of your root partition and see if that works

Angela Wu · 06-26-2013, 07:16 PM

Quote:

Originally Posted by frieza

hmm, could be your boot loader config, try taking out the UUID= directive and pointing it at the raw /dev/sdXY device node of your root partition and see if that works

What is so called boot loader config, where is it?
Did you means that my .config file should be modified?
Sorry, I don't understand ? Could you be more clear?
Thanks~

Angela Wu · 06-26-2013, 07:30 PM

Quote:

Originally Posted by frieza

hmm, could be your boot loader config, try taking out the UUID= directive and pointing it at the raw /dev/sdXY device node of your root partition and see if that works

Did you means the grub.cfg should be modified?

evo2 · 06-26-2013, 08:00 PM

Hi,

ok the config looks fine and is identical to the Ubuntu config-3.5.0-27-generic.

I noticed in the new screenshot that error messages are almost exactly the same. There is still the message about "devtmpfs not available". The only difference I notice is that the uuid in the screen shots has changed. In the older photos it was 99df6fa1... and now it is b69719d2... so perhaps frieza is on to something.

Evo2.

Angela Wu · 06-26-2013, 08:14 PM

Quote:

Originally Posted by evo2

Hi,

Code:

cd /usr/src
tar xjf linux-source-3.xx.tar.bz2
cd linux-source-3.xx
cp /from/somewhere/.config-foo .config
export DEB_HOST_ARCH=i386 
make oldconfig
make menuconfig
fakeroot make-kpkg clean
fakeroot make-kpkg --arch i386 --append-to-version="-vtc1000" --revision="1.0" --initrd kernel-image kernel-headers modules-image

Evo2.

In the above code , I didn't use the command

Code:

make oldconfig

Because then will be ask a lot of question.
Instead I use the command

Code:

make defconfig

Am I right?

evo2 · 06-26-2013, 08:38 PM

Hi,

"make oldconfig" is will only ask questions about config options that are not set in your .config. It can be useful when your .config is from an older kernel version. This is exactly your situation, so I would recommend doing "make oldconfig" (I think you can just select the default answer to each question).

I think "make defconfig" is *not* what you want to do since I think it will use the default configuration that came with the kernel source. Where exactly did you get the config file that attached to post #68? Are you really sure it is the config file used to build the kernel. Did it come from /boot/config-3.6.11-vtc1000 (or similar) after you installed the kernel?

Evo2.

Angela Wu · 06-26-2013, 08:42 PM

Quote:

Originally Posted by evo2

Hi,

I think "make defconfig" is *not* what you want to do since I think it will use the default configuration that came with the kernel source. Where exactly did you get the config file that attached to post #68? Are you really sure it is the config file used to build the kernel. Did it come from /boot/config-3.6.11-vtc1000 (or similar) after you installed the kernel?

Evo2.

Yes, I will reconfirm.