Re: [CentOS] DVR recorder how to resucue files

[ralf.prengel]

dd does not show partitions, fdisk does (or parted or ...).

Sorry,
my mistake.
I used several disktools.

Ralf
Ralf Prengel
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Re: [CentOS] DVR recorder how to resucue files

[ralf.prengel]

It looks like you've backuped an entire disk that might contain partitions.
So first check if you have partitions inside:

sudo fdisk -lu save.dd

If you have partitions inside, use the start offset of the partition to create 
a loopback device (e.g. a partition starts at 56):

sudo losetup -o $((56*512)) /dev/loop0 save.dd

Now you should be able to use the partition. First check and than mount it:

sudo fsck -fv /dev/loop0
sudo mount /dev/loop0 /mnt


xxx

Hallo,
no partions are shown with dd.
Found an article that some DVR vendors are using their own filesystems.
I think that I ve no chane in this case to rescue anything.
Thanks for all hints.
Ralf


Ralf Prengel
Teamleiter
Customer Care
Comline AG
Hauert 8
D-44227 Dortmund/Germany

Telefon:+49 231 97575 157
Mobil:+49 151 10831 157
Fax:+49 231 97575 257
E-Mail:ralf.pren...@comline.de

www.comline.de
Vorstand: Stephan Schilling
Aufsichtsratsvorsitzender: N.N.
HR Dortmund B 14570 USt.-ID-Nr. DE124727422

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Re: [CentOS] DVR recorder how to resucue files

[ralf.prengel]

Ralf Prengel  wrote:

>  I made a backup using dd without any problems but how can I mount
> this  image.
>  Normal loop options don't work.

Too little information. Tell us what you tried (the exact command) and what 
happened (any error message).

Ok,
sorry.
Our recoder device that stores all videos of several cameras doesn t work any 
longer.
Before doing anything on the the device or the disk I made a full backup oft he 
disk with dd.
Trying to mount this file simple with mount -o loop save.dd /mnt/backup fails.
I found out that VDR are using non-standard disk-configurations and filesystems.
So my question if there is a way to get access the files in the image.
Tools like parted don t show partions in the  bckup-file.

Thanks
Ralf

Ralf Prengel
Teamleiter
Customer Care
Comline AG
Hauert 8
D-44227 Dortmund/Germany

Telefon:+49 231 97575 157
Mobil:+49 151 10831 157
Fax:+49 231 97575 257
E-Mail:ralf.pren...@comline.de

www.comline.de
Vorstand: Stephan Schilling
Aufsichtsratsvorsitzender: N.N.
HR Dortmund B 14570 USt.-ID-Nr. DE124727422

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Re: [CentOS] PXE ValueError: new value non-existent xfs filesystem is not valid as a default fs type

[ralf.prengel]

-Ursprüngliche Nachricht-
Von: CentOS  Im Auftrag von Fabian Arrotin
Gesendet: Freitag, 17. Januar 2020 14:28
An: centos@centos.org
Betreff: Re: [CentOS] PXE ValueError: new value non-existent xfs filesystem is 
not valid as a default fs type

On 16/01/2020 10:50, Ralf Prengel wrote:
> Hallo,
> has anyone a working Centos 8.1 PXE Installation?
>
> This is my problem
> http://realtechtalk.com/Centos_PXEBoot_NetInstall_Failure__Pane_is_dea
> d-2012-articles
>

All CentOS 8.1.1911 validations were done over PXE (machines reinstalled
- physical or VMs).
So that article mentions something specific about non distro kernel to have 
other kmod enabled.
Is that what you need ?
IF not, just ensure that you (obviously) boot anaconda through pxe with the 
kernel/initrd.img that *matches* the tree you're installing from (as yes, a 
kernel/initrd from 8.0.1905 wouldn't work to kick a 8.1.1911 install)


Xxx
Hallo,
problem solved now.
Problem obiously caused by a wrong path mixed kernel initrd versions.

Thanks
Ralf
Ralf Prengel
Teamleiter
Customer Care
Comline AG
Hauert 8
D-44227 Dortmund/Germany

Telefon:+49 231 97575 157
Mobil:+49 151 10831 157
Fax:+49 231 97575 257
E-Mail:ralf.pren...@comline.de

www.comline.de
Vorstand: Stephan Schilling
Aufsichtsratsvorsitzender: Nikolaus Bethlen
HR Dortmund B 14570 USt.-ID-Nr. DE 124727422

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[CentOS] kickstart configuration is working fine but some questions

[ralf.prengel]

Hallo,

my kickstart configuration (Centos 7.6) is working fine using pxe now but I ve 
two little problems:

1)
The installation stops in the last screen "installation finished" and doesn't 
switch to the login-screen.
2)
How can I configure the profile for users to answer all question that are asked 
after the first login.

Thanks

Ralf


Ralf Prengel
Teamleiter
Customer Care
Comline AG
Hauert 8
D-44227 Dortmund/Germany

Telefon:+49 231 97575 157
Mobil:+49 151 10831 157
Fax:+49 231 97575 257
E-Mail:ralf.pren...@comline.de

www.comline.de
Vorstand: Stephan Schilling
Aufsichtsrat: Otto Prange (Vorsitzender)
HR Dortmund B 14570 USt.-ID-Nr. DE 124727422




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[CentOS] centos docker which repo (centos or docker)

[ralf.prengel]

Hallo,



I planning to migrate ouch dockerfarm from debian to centos.

Most of our customers are using redhat or centos and some oft eh books I m 
using are written for centos too.

My question:

Should I use docker from the standard repo or the version from the docker-repo?



Thanks for hints



Ralf



Ralf Prengel
Teamleiter
Customer Care
Comline AG
Hauert 8
D-44227 Dortmund/Germany
...
Telefon:+49 231 97575 157
Mobil:  +49 151 10831 157
Fax:+49 231 97575 257
E-Mail: ralf.pren...@comline.de
...
www.comline.de
Vorstand: Stephan Schilling

Aufsichtsrat: Otto Prange (Vorsitzender)

HR Dortmund B 14570 USt.-ID-Nr. DE 124727422

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