Re: [CentOS] C5 : Firefox 38 bug

[James B. Byrne]

On Fri, June 12, 2015 15:41, John R Pierce wrote:

>
>
> here's what I got from that URL for reference:
>
>
> Safe Browsing
>
>
>   /Diagnostic page for/googleusercontent.com
>
> *What is the current listing status for googleusercontent.com?*
>
> This site is not currently listed as suspicious.
>
> Part of this site was listed for suspicious activity 370 time(s)
> over the past 90 days.
>
> *What happened when Google visited this site?*
>
> Of the 4006663 pages we tested on the site over the past 90 days,
> 3446 page(s) resulted in malicious software being downloaded and
> installed without user consent. The last time Google visited this
> site was on 2015-06-12, and the last time suspicious content was
> found on this site was on 2015-06-12.
>
> Malicious software includes 18440 exploit(s), 12470 trojan(s),
> 2399
> scripting exploit(s).
>
> Malicious software is hosted on 13 domain(s),
> includingpowerade.com.ar/
> 
> ,douglas.de/
> 
> ,maxtraffic.com/
> .
>
> This site was hosted on 1 network(s) includingAS15169 (GOOGLE)
> .
>
> *Has this site acted as an intermediary resulting in further
> distribution of malware?*
>
> Over the past 90 days, googleusercontent.com appeared to function
> as
> an intermediary for the infection of 9 site(s)
> includingstartbusinesscoaching.com.au/
> 
> ,crpcoutreach.blogspot.com/
> 
> ,businesscoachinstitute.com.au/
> 
> .
>
> *Has this site hosted malware?*
>
> Yes, this site has hosted malicious software over the past 90
> days.
> It infected 1206 domain(s), includingv4download.com/
> 
> ,vfastdownload.com/
> 
> ,downloadmee.com/
> .
>
> *Next steps:*
>
>   * Return to the previous page.
> 
> 
>   * If you are the owner of this web site, you can request a review of
> your site using GoogleWebmaster Tools
> . More information about
> the review process is available in Google'sWebmaster Help Center
> .
>
>

Which raises the question: Just how bad does a site have to get BEFORE
it gets listed as suspicious by Google?

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Re: [CentOS] C5 : Firefox 38 bug

[James B. Byrne]

> On 6/13/2015 12:15 AM, Rob Kampen wrote:
>>>
>> Got love a page that asserts dozens of alarming things with no
>> examples, references or links to further reading, on top of that my
>> understanding is that the principals of this domain are (ex) KGB
>> agents. Incendiary writing designed to create fear and angst.

Notwithstanding the FSB aspect of the source:  If your own people
habitually lie to you about such things in the name of National
Security - which seems to have replaced the belief in God in the minds
of many; presumably as it serves the same purpose - then where else
can you go but to the opposition?  The truth will out. It sometime
comes through the sewers but it will out.

Equation Group are almost certainly creatures of the beltway bandit
crowd and if not actually staffed by the U.S.A. government then
certainly under contract to them. Probably some combination of the two
is the actual case.  Given the provenance of the exposé it certainly
is not a Russian operation.

On Sat, June 13, 2015 11:54, John R Pierce wrote:
>
> standard operating procedures in the (in)Security business.
>
>

Ironic that the one thing a government needs most to assert its
legitimacy is the very thing that its own security forces attack and
undermine to the point of collapse; trust.

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Re: [CentOS] C5 : Firefox 38 bug

[James B. Byrne]

On Sat, June 13, 2015 17:56, Valeri Galtsev wrote:

>
> As I said about these services here (KGB, CIA, MI-6, ...) there
> is no "ex" for their agents. The only way one retired from these
> organizations is dead, feet first dead.
>

A bit hyperbolic.  One could with as much justification state that
there is no such thing as an ex-marine, an ex-seal, an ex-commissioned
officer, or an ex-almost-any-sensitive-position that has to do with
the running of a modern industrial state.  Various state-secret laws
effectively see to that if nothing else.

In any case, all these organizations are based on task-completion and
need-to-know principles.  Once you are no longer tasked then you are
effectively retired, even if still employed, until re-tasked.  Once
you are more-or-less permanently 'untasked' then the only question is
which budget does your paycheck offset.

This is not to say that I disagree with the underlying point, only
that it is a bit overly selective in its formulation.

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Re: [CentOS] Actually try to install CentOS7

[Jonathan Billings]

On Sat, Jun 13, 2015 at 03:39:56PM -0600, jd1008 wrote:
> I tried the the two boot options.
> They work (i.e. it does not crash.)

Good to hear!

> However, it does not let me do manual partitioning.
> That absolutely sucks and blows at the same time.
> Who thought this crap out.

The Installer in CentOS7 is confusing, particularly the partitioning
section, but it *does* let you do manual partitioning.  If you see
this display:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Installation_Guide/images/diskpartsetup/disk-setup-x86.png

(From:
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Installation_Guide/sect-disk-partitioning-setup-x86.html
 )

You need to pick 'I will configure partitioning'.

> Also, it does not provide for the option to upgrade.
> In fact the banner does not even say
> Install or Upgrade.

No one ever said it would allow you to upgrade the system in-place.
Aside from the 'preupg' method (which can leave you with a broken
system), the method you use to upgrade a system from CentOS6 to
CentOS7 is to back up your data, install CentOS7, and restore your
data. 

The jump from CentOS6 to CentOS7 is big enough that a lot of software
can't safely be upgraded via yum.  It's not a minor update.

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Re: [CentOS] C5 : Firefox 38 bug

[Valeri Galtsev]

On Sun, June 14, 2015 8:03 am, James B. Byrne wrote:
>
> On Sat, June 13, 2015 17:56, Valeri Galtsev wrote:
>
>>
>> As I said about these services here (KGB, CIA, MI-6, ...) there
>> is no "ex" for their agents. The only way one retired from these
>> organizations is dead, feet first dead.
>>
>
> A bit hyperbolic.  One could with as much justification state that
> there is no such thing as an ex-marine, an ex-seal, an ex-commissioned
> officer, or an ex-almost-any-sensitive-position that has to do with
> the running of a modern industrial state.  Various state-secret laws
> effectively see to that if nothing else.
>
> In any case, all these organizations are based on task-completion and
> need-to-know principles.  Once you are no longer tasked then you are
> effectively retired, even if still employed, until re-tasked.  Once
> you are more-or-less permanently 'untasked' then the only question is
> which budget does your paycheck offset.
>
> This is not to say that I disagree with the underlying point, only
> that it is a bit overly selective in its formulation.
>

This is up to everybody: to use their brain and avoid sources (of
anything: software, "information", "analysis",...) if there is any
indication you shouldn't trust the source.

Take Kaspersky. Free antivirus. This is the code you run on your Windows
machine from account with highest privileges. And you even know
Kaspersky's relation with KGB (who cares: has or had). This, distributing
free software (antivirus) which Windows - as MS tells you - can not be
safely run without I would rate as more brilliant Intelligence (OK, call
it dirty tricks) operation than collection of information by offering free
(cloud based) applications and serviced. I know, many people will jump in
right here arguing that "google is not like that" even though I didn't
even mention google. Google just stands out as the largest best known (and
for which closer to its foundation there was the question: where could
this huge startup capital come from - if not from uncounted taxpayer's
money...).

It all boils down to everybody's own willingness to stay away from
anything you quite likely can not trust.

Valeri


Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247

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Re: [CentOS] dconf under Centos 6 vs Centos 7

[Jonathan Billings]

On Sun, Jun 14, 2015 at 02:08:54PM +1000, centos wrote:
> under Centos 6,
> dconf -o ./outfile
> it will copy and combine all the .conf files to outfile.
> under Centos 7,
> is there any similar command will do the same things ?

There is no 'dconf' executable in CentOS6, at least, not in the
standard repos.  Are you thinking about gconf-tool?

I don't see a way to dump all dconf settings with 'dconf', although
'gsettings list-recursively' seems to dump everything from the
gsettings side.

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Re: [CentOS] C5 : Firefox 38 bug

[Jonathan Billings]

On Sun, Jun 14, 2015 at 09:34:36AM -0500, Valeri Galtsev wrote:
> This is up to everybody: to use their brain and avoid sources (of
> anything: software, "information", "analysis",...) if there is any
> indication you shouldn't trust the source.
> [snip]
> It all boils down to everybody's own willingness to stay away from
> anything you quite likely can not trust.

This has gone so far off topic...

Could we at least limit the paranoid ravings to linux software?  At
least your rants about systemd were somewhat relevant.

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Re: [CentOS] C5 : Firefox 38 bug

[Always Learning]

On Sun, 2015-06-14 at 09:34 -0500, Valeri Galtsev wrote:

>  Google just stands out as the largest best known (and
> for which closer to its foundation there was the question: where could
> this huge startup capital come from - if not from uncounted taxpayer's
> money...).

Mainly from CIA & NSA :-)

It has ongoing contracts (data sharing agreements) with the US of A
government.


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Re: [CentOS] Actually try to install CentOS7

[jd1008]

On 06/14/2015 08:12 AM, Jonathan Billings wrote:

On Sat, Jun 13, 2015 at 03:39:56PM -0600, jd1008 wrote:

I tried the the two boot options.
They work (i.e. it does not crash.)

Good to hear!


However, it does not let me do manual partitioning.
That absolutely sucks and blows at the same time.
Who thought this crap out.

The Installer in CentOS7 is confusing, particularly the partitioning
section, but it *does* let you do manual partitioning.  If you see
this display:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Installation_Guide/images/diskpartsetup/disk-setup-x86.png

(From:
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Installation_Guide/sect-disk-partitioning-setup-x86.html
 )

You need to pick 'I will configure partitioning'.


Also, it does not provide for the option to upgrade.
In fact the banner does not even say
Install or Upgrade.

No one ever said it would allow you to upgrade the system in-place.
Aside from the 'preupg' method (which can leave you with a brokent
system), the method you use to upgrade a system from CentOS6 to
CentOS7 is to back up your data, install CentOS7, and restore your
data.

The jump from CentOS6 to CentOS7 is big enough that a lot of software
can't safely be upgraded via yum.  It's not a minor update.


I did indeed see the option that says I will configure partitioning.
But when I return back to the screen (where it has all the icons
that let you select the initial things, like date, time ...etc, it says
about destination:  automatically

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[CentOS] Centos 6.6 not booting on Virtualbox on Windows host

[Animesh Pandey]

Hi,

I downloaded the QuickStart VM from Cloudera that has preinstalled
Spark/Hadoop etc. I have been working on that for the last 4-5 weeks and it
was running absolutely fine, but recently I had to restart my VM. Since,
then the VM does not restart. It shows the loading bar but after that it
seems as if it stopped responding. It only shows a small black screen
 and does not go anywhere from there.

The log  hangs at Setting up logical
volume management : 3 logical volume(s) in volume group "vol group" now
active.

I tried logging in using the Single User Mode but still the system hangs at
the point.

I don't know what is going wrong?
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[CentOS] Thunderbird question

[jd1008]

I was looking at the output of
thunderbird --help

and I see there is no cli arg that makes it
start with a specific profile (which can be any
one of n profiles) - unless I am not reading
the output properly :)

I am trying to avoid having to select the profile
when starting thunderbird on different worspaces
for different profiles.
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Re: [CentOS] Thunderbird question

[Steven Stern]

On 06/14/2015 04:53 PM, jd1008 wrote:
> I was looking at the output of
> thunderbird --help
> 
> and I see there is no cli arg that makes it
> start with a specific profile (which can be any
> one of n profiles) - unless I am not reading
> the output properly :)
> 
> I am trying to avoid having to select the profile
> when starting thunderbird on different worspaces
> for different profiles.

thunderbird -P "profile_name"

https://developer.mozilla.org/en-US/docs/Mozilla/Command_Line_Options#User_Profile

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Re: [CentOS] Thunderbird question

[jd1008]

On 06/14/2015 05:07 PM, Steven Stern wrote:

On 06/14/2015 04:53 PM, jd1008 wrote:

I was looking at the output of
thunderbird --help

and I see there is no cli arg that makes it
start with a specific profile (which can be any
one of n profiles) - unless I am not reading
the output properly :)

I am trying to avoid having to select the profile
when starting thunderbird on different worspaces
for different profiles.

thunderbird -P "profile_name"

https://developer.mozilla.org/en-US/docs/Mozilla/Command_Line_Options#User_Profile


Ah
All this time I had been thinking that -P simply tells TB to let user
select a profile from the menu.

Kind regards,

JD
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[CentOS] 2 or more bridges not working

[Stephen]

Hi,


Adding one bridge to cent7 works fine.  But when adding a 
second bridge it either takes the IP from the First bridge and
stops the first bridge from working or
Stops the first bridge from working and does not work for either
bridge

I’m adding

BRIDGE=br3
to ifcfg-eth0

and then
creat ifcfg-br3
and adding the necessary requirments TYPE, BOOTPROTO,
DELAY

Is there a reason why Cent7 won’t except two or more bridges?

I’m using NM after a yum update.

Best,


Steve
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[CentOS] Having a problem with a yum repo

[jd1008]

Hi,
yum update is giving me the following errors:

# yum -y install mplayer
Loaded plugins: fastestmirror, fs-snapshot, refresh-packagekit, security
Setting up Install Process
Loading mirror speeds from cached hostfile
epel/metalink |  12 kB 00:00
 * base: centos.sonn.com
 * c6-media:
 * elrepo: elrepo.org
 * epel: mirrors.tummy.com
 * extras: mirrors.xmission.com
 * rpmfusion-free-updates: mirror.nexcess.net
 * rpmfusion-nonfree-updates: mirror.nexcess.net
 * updates: mirror.keystealth.org
file:///media/CentOS/repodata/repomd.xml: [Errno 14] Could not open/read 
file:///media/CentOS/repodata/repomd.xml

Trying other mirror.
file:///media/cdrecorder/repodata/repomd.xml: [Errno 14] Could not 
open/read file:///media/cdrecorder/repodata/repomd.xml

Trying other mirror.
file:///media/cdrom/repodata/repomd.xml: [Errno 14] Could not open/read 
file:///media/cdrom/repodata/repomd.xml

Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: 
c6-media. Please verify its path and try again


So, does this mean the server is down?

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[CentOS] Any alternative to Single User Mode

[Animesh Pandey]

Hi,
I am working on Centos6.6 on a VirtualBox on Windows Host. Today I started
to have booting issues in the OS. It won't get past the loading screen. I
checked and found that the files related to the user "cloudera" on the
system were not accessible. Only the files related to root were accessible.
This is why I was am not able to do a single user login but an emergency
login was possible. This is just a guess.
This all happened due to some update in the Virtual Machine that I use to
run CentOS.

Is there any workaround for this issue?

Thanks and regards,
Animesh Pandey
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Re: [CentOS] Any alternative to Single User Mode

[jd1008]

On 06/14/2015 06:28 PM, Animesh Pandey wrote:

Hi,
I am working on Centos6.6 on a VirtualBox on Windows Host. Today I started
to have booting issues in the OS. It won't get past the loading screen. I
checked and found that the files related to the user "cloudera" on the
system were not accessible. Only the files related to root were accessible.
This is why I was am not able to do a single user login but an emergency
login was possible. This is just a guess.
This all happened due to some update in the Virtual Machine that I use to
run CentOS.

Is there any workaround for this issue?

Thanks and regards,
Animesh Pandey

I wish you could provide more info.

How can you determine that inaccessibility to a user's
files will prevent centos from taking you all the way to
the login (or welcome) screen?

I think something else is going on and my guess is that
the centos files themselves have been corruped.
Can you re-install centos ?

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Re: [CentOS] Having a problem with a yum repo

[Frank Cox]

On Sun, 14 Jun 2015 18:22:40 -0600
jd1008 wrote:


> Error: Cannot retrieve repository metadata (repomd.xml) for repository: 
> c6-media. Please verify its path and try again
> 
> So, does this mean the server is down?

It means that c6-media (which is likely the CD or DVD that you installed Centos 
6 from) is not present on your computer, probably because you removed it from 
the cd drive.




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Re: [CentOS] Having a problem with a yum repo

[jd1008]

On 06/14/2015 06:22 PM, jd1008 wrote:

Hi,
yum update is giving me the following errors:

# yum -y install mplayer
Loaded plugins: fastestmirror, fs-snapshot, refresh-packagekit, security
Setting up Install Process
Loading mirror speeds from cached hostfile
epel/metalink |  12 kB 00:00
 * base: centos.sonn.com
 * c6-media:
 * elrepo: elrepo.org
 * epel: mirrors.tummy.com
 * extras: mirrors.xmission.com
 * rpmfusion-free-updates: mirror.nexcess.net
 * rpmfusion-nonfree-updates: mirror.nexcess.net
 * updates: mirror.keystealth.org
file:///media/CentOS/repodata/repomd.xml: [Errno 14] Could not 
open/read file:///media/CentOS/repodata/repomd.xml

Trying other mirror.
file:///media/cdrecorder/repodata/repomd.xml: [Errno 14] Could not 
open/read file:///media/cdrecorder/repodata/repomd.xml

Trying other mirror.
file:///media/cdrom/repodata/repomd.xml: [Errno 14] Could not 
open/read file:///media/cdrom/repodata/repomd.xml

Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for 
repository: c6-media. Please verify its path and try again


So, does this mean the server is down?


I disabled the offending repo: c6-media in repo file CentOS-Media.repo
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Re: [CentOS] Having a problem with a yum repo

[jd1008]

On 06/14/2015 06:39 PM, Frank Cox wrote:

On Sun, 14 Jun 2015 18:22:40 -0600
jd1008 wrote:



Error: Cannot retrieve repository metadata (repomd.xml) for repository:
c6-media. Please verify its path and try again

So, does this mean the server is down?

It means that c6-media (which is likely the CD or DVD that you installed Centos 
6 from) is not present on your computer, probably because you removed it from 
the cd drive.





Yes, because I need the drive :)

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Re: [CentOS] Any alternative to Single User Mode

[Animesh Pandey]

I actually opened the Virtual Disk Image (.vdi) on http://www.vmxray.com/.
I could see that despite my disk being of 100GB only ~65GB was being shown.
All the stuff related ot the local user was not visible at all.
After I restarted my VM, the OS gets stuck here (
http://i.stack.imgur.com/KVYxV.png). Even after trying the single user
login it was stuck there. But the emergency mode worked alright.

On Sun, Jun 14, 2015 at 8:37 PM, jd1008  wrote:

>
>
> On 06/14/2015 06:28 PM, Animesh Pandey wrote:
>
>> Hi,
>> I am working on Centos6.6 on a VirtualBox on Windows Host. Today I started
>> to have booting issues in the OS. It won't get past the loading screen. I
>> checked and found that the files related to the user "cloudera" on the
>> system were not accessible. Only the files related to root were
>> accessible.
>> This is why I was am not able to do a single user login but an emergency
>> login was possible. This is just a guess.
>> This all happened due to some update in the Virtual Machine that I use to
>> run CentOS.
>>
>> Is there any workaround for this issue?
>>
>> Thanks and regards,
>> Animesh Pandey
>>
> I wish you could provide more info.
>
> How can you determine that inaccessibility to a user's
> files will prevent centos from taking you all the way to
> the login (or welcome) screen?
>
> I think something else is going on and my guess is that
> the centos files themselves have been corruped.
> Can you re-install centos ?
>
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Re: [CentOS] Any alternative to Single User Mode

[jd1008]

On 06/14/2015 06:47 PM, Animesh Pandey wrote:

I actually opened the Virtual Disk Image (.vdi) on http://www.vmxray.com/.
I could see that despite my disk being of 100GB only ~65GB was being shown.
All the stuff related ot the local user was not visible at all.
After I restarted my VM, the OS gets stuck here (
http://i.stack.imgur.com/KVYxV.png). Even after trying the single user
login it was stuck there. But the emergency mode worked alright.

On Sun, Jun 14, 2015 at 8:37 PM, jd1008  wrote:



On 06/14/2015 06:28 PM, Animesh Pandey wrote:


Hi,
I am working on Centos6.6 on a VirtualBox on Windows Host. Today I started
to have booting issues in the OS. It won't get past the loading screen. I
checked and found that the files related to the user "cloudera" on the
system were not accessible. Only the files related to root were
accessible.
This is why I was am not able to do a single user login but an emergency
login was possible. This is just a guess.
This all happened due to some update in the Virtual Machine that I use to
run CentOS.

Is there any workaround for this issue?

Thanks and regards,
Animesh Pandey


I wish you could provide more info.

How can you determine that inaccessibility to a user's
files will prevent centos from taking you all the way to
the login (or welcome) screen?

I think something else is going on and my guess is that
the centos files themselves have been corruped.
Can you re-install centos ?

Please do not top-post.

I am having trouble following your terminology.
Emergency model?
On my centos installation, there is no "Emergency "
to select from the list of kernels to boot.

Also, when you say "worked alright" do you
mean that you were able to access what you thought
was missing?
Can you go to full multiuser?




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Re: [CentOS] Any alternative to Single User Mode

[Animesh Pandey]

On Sun, Jun 14, 2015 at 9:06 PM, jd1008  wrote:

>
>
> On 06/14/2015 06:47 PM, Animesh Pandey wrote:
>
>> I actually opened the Virtual Disk Image (.vdi) on http://www.vmxray.com/
>> .
>> I could see that despite my disk being of 100GB only ~65GB was being
>> shown.
>> All the stuff related ot the local user was not visible at all.
>> After I restarted my VM, the OS gets stuck here (
>> http://i.stack.imgur.com/KVYxV.png). Even after trying the single user
>> login it was stuck there. But the emergency mode worked alright.
>>
>> On Sun, Jun 14, 2015 at 8:37 PM, jd1008  wrote:
>>
>>
>>> On 06/14/2015 06:28 PM, Animesh Pandey wrote:
>>>
>>>  Hi,
 I am working on Centos6.6 on a VirtualBox on Windows Host. Today I
 started
 to have booting issues in the OS. It won't get past the loading screen.
 I
 checked and found that the files related to the user "cloudera" on the
 system were not accessible. Only the files related to root were
 accessible.
 This is why I was am not able to do a single user login but an emergency
 login was possible. This is just a guess.
 This all happened due to some update in the Virtual Machine that I use
 to
 run CentOS.

 Is there any workaround for this issue?

 Thanks and regards,
 Animesh Pandey

  I wish you could provide more info.
>>>
>>> How can you determine that inaccessibility to a user's
>>> files will prevent centos from taking you all the way to
>>> the login (or welcome) screen?
>>>
>>> I think something else is going on and my guess is that
>>> the centos files themselves have been corruped.
>>> Can you re-install centos ?
>>>
>> Please do not top-post.
>
> I am having trouble following your terminology.
> Emergency model?
> On my centos installation, there is no "Emergency "
> to select from the list of kernels to boot.
>
> Also, when you say "worked alright" do you
> mean that you were able to access what you thought
> was missing?
> Can you go to full multiuser?
>
>
>
>
>>> ___
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>>> CentOS@centos.org
>>> http://lists.centos.org/mailman/listinfo/centos
>>>
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>>
>>
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>

Sorry for top posting.

Let me give you a clearer idea.

1. My regular boot freezes after loading is completed.
2. I read on the internet that sometimes due to an update in VirtualBox,
this error might occur. To rectify it, I must re-install VirtualBox's Guest
Additions. For this, I require booting in a Single User Mode.
3. For that, I followed the correct steps as given here (
https://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-rescuemode-booting-single.html).
But still the system froze on that same point.
4. Then I read about an Emergency mode which is even lower level to that of
Single User mode. I was able to log in and see the files that I
created/modified as root. I could not see any file/folder that related the
local user "cloudera" on which I used to work. This is where I thought of
seeing the contents of the Image using vmxray.com and found that a large
part of the dick is not visible. This part contains that files related to
"cloudera". I felt as if any information related to "cloudera" user has
been lost.

I basically need to access files that I made as "cloudera" on CENTOS and if
possible re-install the Guest Additions that ma solve this issue. But for
this I need to be able to boot as a Single User.
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Re: [CentOS] Any alternative to Single User Mode

[Jonathan Billings]

On Sun, Jun 14, 2015 at 08:47:24PM -0400, Animesh Pandey wrote:
> After I restarted my VM, the OS gets stuck here (
> http://i.stack.imgur.com/KVYxV.png). Even after trying the single user
> login it was stuck there. But the emergency mode worked alright.

Did you try switching to another VT and logging in via the text login
prompt?  How about hitting escape during boot to see what it was doing
when it hung?  I also suggest removing 'rhgb quiet' from the kernel
command line in the bootloader, so you can see more during boot.

-- 
Jonathan Billings 
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Re: [CentOS] Any alternative to Single User Mode

[jd1008]

On 06/14/2015 07:36 PM, Animesh Pandey wrote:

On Sun, Jun 14, 2015 at 9:06 PM, jd1008  wrote:



On 06/14/2015 06:47 PM, Animesh Pandey wrote:


I actually opened the Virtual Disk Image (.vdi) on http://www.vmxray.com/
.
I could see that despite my disk being of 100GB only ~65GB was being
shown.
All the stuff related ot the local user was not visible at all.
After I restarted my VM, the OS gets stuck here (
http://i.stack.imgur.com/KVYxV.png). Even after trying the single user
login it was stuck there. But the emergency mode worked alright.

On Sun, Jun 14, 2015 at 8:37 PM, jd1008  wrote:



On 06/14/2015 06:28 PM, Animesh Pandey wrote:

  Hi,

I am working on Centos6.6 on a VirtualBox on Windows Host. Today I
started
to have booting issues in the OS. It won't get past the loading screen.
I
checked and found that the files related to the user "cloudera" on the
system were not accessible. Only the files related to root were
accessible.
This is why I was am not able to do a single user login but an emergency
login was possible. This is just a guess.
This all happened due to some update in the Virtual Machine that I use
to
run CentOS.

Is there any workaround for this issue?

Thanks and regards,
Animesh Pandey

  I wish you could provide more info.

How can you determine that inaccessibility to a user's
files will prevent centos from taking you all the way to
the login (or welcome) screen?

I think something else is going on and my guess is that
the centos files themselves have been corruped.
Can you re-install centos ?


Please do not top-post.

I am having trouble following your terminology.
Emergency model?
On my centos installation, there is no "Emergency "
to select from the list of kernels to boot.

Also, when you say "worked alright" do you
mean that you were able to access what you thought
was missing?
Can you go to full multiuser?




Sorry for top posting.

Let me give you a clearer idea.

1. My regular boot freezes after loading is completed.
2. I read on the internet that sometimes due to an update in VirtualBox,
this error might occur. To rectify it, I must re-install VirtualBox's Guest
Additions. For this, I require booting in a Single User Mode.
3. For that, I followed the correct steps as given here (
https://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-rescuemode-booting-single.html).
But still the system froze on that same point.
4. Then I read about an Emergency mode which is even lower level to that of
Single User mode. I was able to log in and see the files that I
created/modified as root. I could not see any file/folder that related the
local user "cloudera" on which I used to work. This is where I thought of
seeing the contents of the Image using vmxray.com and found that a large
part of the dick is not visible. This part contains that files related to
"cloudera". I felt as if any information related to "cloudera" user has
been lost.

I basically need to access files that I made as "cloudera" on CENTOS and if
possible re-install the Guest Additions that ma solve this issue. But for
this I need to be able to boot as a Single User.

I assume you are using a virtual drive, which is a file on the host
machine (You said windows??? ).
If you can somehow use a tool to dump that disk image to
a real hard drive (for example using dd ), and connect
the hard drive a a working linux computer to run fsck on it
to see what it will find.
I assume you have no backup of your drive???

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[CentOS] Two partitions with samd UUID??

[Timothy Murphy]

I seem to have partitions on two different disks
with the same UUID:
  [tim@helen ~]$ sudo blkid /dev/sda2
  /dev/sda2: LABEL="/boot1" UUID="5bbc8e95-6108-41f5-bc0e-5b5f8df5ce03"
TYPE="ext3" 
  [tim@helen ~]$ sudo blkid /dev/sdb2
  /dev/sdb2: LABEL="/boot1" UUID="5bbc8e95-6108-41f5-bc0e-5b5f8df5ce03"
TYPE="ext3" 
This is causing some confusion, as these are boot partitions,
and grub2 seems to be choosing the wrong one.

I wonder how this occurred;
I thought different partitions on different disks
necessarily had different UUIDs?

Maybe I used dd at some point.
Would this keep the same UUID?

-- 
Timothy Murphy  
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin


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Re: [CentOS] Any alternative to Single User Mode

[Animesh Pandey]

On Sun, Jun 14, 2015 at 9:47 PM, jd1008  wrote:

>
>
> On 06/14/2015 07:36 PM, Animesh Pandey wrote:
>
>> On Sun, Jun 14, 2015 at 9:06 PM, jd1008  wrote:
>>
>>
>>> On 06/14/2015 06:47 PM, Animesh Pandey wrote:
>>>
>>>  I actually opened the Virtual Disk Image (.vdi) on
 http://www.vmxray.com/
 .
 I could see that despite my disk being of 100GB only ~65GB was being
 shown.
 All the stuff related ot the local user was not visible at all.
 After I restarted my VM, the OS gets stuck here (
 http://i.stack.imgur.com/KVYxV.png). Even after trying the single user
 login it was stuck there. But the emergency mode worked alright.

 On Sun, Jun 14, 2015 at 8:37 PM, jd1008  wrote:


  On 06/14/2015 06:28 PM, Animesh Pandey wrote:
>
>   Hi,
>
>> I am working on Centos6.6 on a VirtualBox on Windows Host. Today I
>> started
>> to have booting issues in the OS. It won't get past the loading
>> screen.
>> I
>> checked and found that the files related to the user "cloudera" on the
>> system were not accessible. Only the files related to root were
>> accessible.
>> This is why I was am not able to do a single user login but an
>> emergency
>> login was possible. This is just a guess.
>> This all happened due to some update in the Virtual Machine that I use
>> to
>> run CentOS.
>>
>> Is there any workaround for this issue?
>>
>> Thanks and regards,
>> Animesh Pandey
>>
>>   I wish you could provide more info.
>>
> How can you determine that inaccessibility to a user's
> files will prevent centos from taking you all the way to
> the login (or welcome) screen?
>
> I think something else is going on and my guess is that
> the centos files themselves have been corruped.
> Can you re-install centos ?
>
>  Please do not top-post.

>>> I am having trouble following your terminology.
>>> Emergency model?
>>> On my centos installation, there is no "Emergency "
>>> to select from the list of kernels to boot.
>>>
>>> Also, when you say "worked alright" do you
>>> mean that you were able to access what you thought
>>> was missing?
>>> Can you go to full multiuser?
>>>
>>>
>>>
>>>  Sorry for top posting.
>>
>> Let me give you a clearer idea.
>>
>> 1. My regular boot freezes after loading is completed.
>> 2. I read on the internet that sometimes due to an update in VirtualBox,
>> this error might occur. To rectify it, I must re-install VirtualBox's
>> Guest
>> Additions. For this, I require booting in a Single User Mode.
>> 3. For that, I followed the correct steps as given here (
>>
>> https://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-rescuemode-booting-single.html
>> ).
>> But still the system froze on that same point.
>> 4. Then I read about an Emergency mode which is even lower level to that
>> of
>> Single User mode. I was able to log in and see the files that I
>> created/modified as root. I could not see any file/folder that related the
>> local user "cloudera" on which I used to work. This is where I thought of
>> seeing the contents of the Image using vmxray.com and found that a large
>> part of the dick is not visible. This part contains that files related to
>> "cloudera". I felt as if any information related to "cloudera" user has
>> been lost.
>>
>> I basically need to access files that I made as "cloudera" on CENTOS and
>> if
>> possible re-install the Guest Additions that ma solve this issue. But for
>> this I need to be able to boot as a Single User.
>>
> I assume you are using a virtual drive, which is a file on the host
> machine (You said windows??? ).
> If you can somehow use a tool to dump that disk image to
> a real hard drive (for example using dd ), and connect
> the hard drive a a working linux computer to run fsck on it
> to see what it will find.
> I assume you have no backup of your drive???
>
>
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>

Yes it is windows. By dumping a disk image do you mean a VDI (VirtualBox
Disk Image). These are files that are used by VirtualBox for booting. I
have a copy of that as well. Can Gparted be used for connecting that VDI?
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Re: [CentOS] Having a problem with a yum repo

[John R Pierce]

On 6/14/2015 5:44 PM, jd1008 wrote:



On 06/14/2015 06:39 PM, Frank Cox wrote:

On Sun, 14 Jun 2015 18:22:40 -0600
jd1008 wrote:



Error: Cannot retrieve repository metadata (repomd.xml) for repository:
c6-media. Please verify its path and try again

So, does this mean the server is down?
It means that c6-media (which is likely the CD or DVD that you 
installed Centos 6 from) is not present on your computer, probably 
because you removed it from the cd drive.






Yes, because I need the drive


the c6-media pseudorepository shouldn't be enabled, you must have 
manually edited it to enable it ?




--
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Re: [CentOS] Two partitions with samd UUID??

[jd1008]

On 06/14/2015 07:55 PM, Timothy Murphy wrote:

I seem to have partitions on two different disks
with the same UUID:
   [tim@helen ~]$ sudo blkid /dev/sda2
   /dev/sda2: LABEL="/boot1" UUID="5bbc8e95-6108-41f5-bc0e-5b5f8df5ce03"
 TYPE="ext3"
   [tim@helen ~]$ sudo blkid /dev/sdb2
   /dev/sdb2: LABEL="/boot1" UUID="5bbc8e95-6108-41f5-bc0e-5b5f8df5ce03"
 TYPE="ext3"
This is causing some confusion, as these are boot partitions,
and grub2 seems to be choosing the wrong one.

I wonder how this occurred;
I thought different partitions on different disks
necessarily had different UUIDs?

Maybe I used dd at some point.
Would this keep the same UUID?


Interesting.
And I thought uuid's were supposed to be unique on a system.
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Re: [CentOS] Any alternative to Single User Mode

[jd1008]

On 06/14/2015 08:02 PM, Animesh Pandey wrote:

On Sun, Jun 14, 2015 at 9:47 PM, jd1008  wrote:



On 06/14/2015 07:36 PM, Animesh Pandey wrote:


On Sun, Jun 14, 2015 at 9:06 PM, jd1008  wrote:



On 06/14/2015 06:47 PM, Animesh Pandey wrote:

  I actually opened the Virtual Disk Image (.vdi) on

http://www.vmxray.com/
.
I could see that despite my disk being of 100GB only ~65GB was being
shown.
All the stuff related ot the local user was not visible at all.
After I restarted my VM, the OS gets stuck here (
http://i.stack.imgur.com/KVYxV.png). Even after trying the single user
login it was stuck there. But the emergency mode worked alright.

On Sun, Jun 14, 2015 at 8:37 PM, jd1008  wrote:


  On 06/14/2015 06:28 PM, Animesh Pandey wrote:

   Hi,


I am working on Centos6.6 on a VirtualBox on Windows Host. Today I
started
to have booting issues in the OS. It won't get past the loading
screen.
I
checked and found that the files related to the user "cloudera" on the
system were not accessible. Only the files related to root were
accessible.
This is why I was am not able to do a single user login but an
emergency
login was possible. This is just a guess.
This all happened due to some update in the Virtual Machine that I use
to
run CentOS.

Is there any workaround for this issue?

Thanks and regards,
Animesh Pandey

   I wish you could provide more info.


How can you determine that inaccessibility to a user's
files will prevent centos from taking you all the way to
the login (or welcome) screen?

I think something else is going on and my guess is that
the centos files themselves have been corruped.
Can you re-install centos ?

  Please do not top-post.

I am having trouble following your terminology.
Emergency model?
On my centos installation, there is no "Emergency "
to select from the list of kernels to boot.

Also, when you say "worked alright" do you
mean that you were able to access what you thought
was missing?
Can you go to full multiuser?



  Sorry for top posting.

Let me give you a clearer idea.

1. My regular boot freezes after loading is completed.
2. I read on the internet that sometimes due to an update in VirtualBox,
this error might occur. To rectify it, I must re-install VirtualBox's
Guest
Additions. For this, I require booting in a Single User Mode.
3. For that, I followed the correct steps as given here (

https://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-rescuemode-booting-single.html
).
But still the system froze on that same point.
4. Then I read about an Emergency mode which is even lower level to that
of
Single User mode. I was able to log in and see the files that I
created/modified as root. I could not see any file/folder that related the
local user "cloudera" on which I used to work. This is where I thought of
seeing the contents of the Image using vmxray.com and found that a large
part of the dick is not visible. This part contains that files related to
"cloudera". I felt as if any information related to "cloudera" user has
been lost.

I basically need to access files that I made as "cloudera" on CENTOS and
if
possible re-install the Guest Additions that ma solve this issue. But for
this I need to be able to boot as a Single User.


I assume you are using a virtual drive, which is a file on the host
machine (You said windows??? ).
If you can somehow use a tool to dump that disk image to
a real hard drive (for example using dd ), and connect
the hard drive a a working linux computer to run fsck on it
to see what it will find.
I assume you have no backup of your drive???


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Yes it is windows. By dumping a disk image do you mean a VDI (VirtualBox
Disk Image). These are files that are used by VirtualBox for booting. I
have a copy of that as well. Can Gparted be used for connecting that VDI?


You will more than likely need a conversion tool to convert a vdi
image to a normal HD image. I do not know of such a tool.

Another possibility is to create another VM, install your linux on it
with it's own separate disk, but add you bad vdi disk
as a second drive. Once booted, use linux to fsck the second
drive.
Again, be sure you have a copy it before you connect it to this
new VM.

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Re: [CentOS] Having a problem with a yum repo

[jd1008]

On 06/14/2015 08:15 PM, John R Pierce wrote:

On 6/14/2015 5:44 PM, jd1008 wrote:



On 06/14/2015 06:39 PM, Frank Cox wrote:

On Sun, 14 Jun 2015 18:22:40 -0600
jd1008 wrote:


Error: Cannot retrieve repository metadata (repomd.xml) for 
repository:

c6-media. Please verify its path and try again

So, does this mean the server is down?
It means that c6-media (which is likely the CD or DVD that you 
installed Centos 6 from) is not present on your computer, probably 
because you removed it from the cd drive.






Yes, because I need the drive

b
the c6-media pseudorepository shouldn't be enabled, you must have 
manually edited it to enable it

Probabaly when I cd'ed into /etc/yum.rep.d and ran  vi *
so it seems I enabled it in error.

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Re: [CentOS] Two partitions with samd UUID??

[John R Pierce]

On 6/14/2015 6:55 PM, Timothy Murphy wrote:

Maybe I used dd at some point.
Would this keep the same UUID?


DD just does a blind block by block copy between two devices or files.



--
john r pierce, recycling bits in santa cruz

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Re: [CentOS] Two partitions with samd UUID??

[jd1008]

On 06/14/2015 08:58 PM, John R Pierce wrote:

On 6/14/2015 6:55 PM, Timothy Murphy wrote:

Maybe I used dd at some point.
Would this keep the same UUID?


DD just does a blind block by block copy between two devices or files.




I thought that uuid had nothing to do with drive content,
so dd would have (should have had) nothing to do with it.
I thought it had to do with information when the device
is queried (manufacturer's name (id), device model, date
of manufacturer, serial number etc).
But 
https://liquidat.wordpress.com/2013/03/13/uuids-and-linux-everything-you-ever-need-to-know/ 
says:

After generating 1 billion UUIDs every second for the next
100 years, the probability of creating just one duplicate
would be about 50%. The probability of one duplicate would
be about 50% if every person on earth owns 600 million UUIDs.
Linux generates uuids   in the file listed at
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/char/random.c?id=refs/tags/v3.8

and you can generate new ones via proc:


$ cat /proc/sys/kernel/random/uuid eaf3a162-d770-4ec9-a819-ec96d429ea9f

There is also the library libuuid 
which is used by |uuidgen|and especially

by the ext2/3/4 tools E2fsprogs to generate UUIDs:

$ uuidgen f81cc383-aa75-4714-aa8a-3ce39e8ad33c



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[CentOS] mpv rpm

[jd1008]

Does anyone have a working rpm of mpv for rhel6 or centos6?
Would appreciate a download link.

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Re: [CentOS] mpv rpm

[Peter]

On 06/15/2015 03:17 PM, jd1008 wrote:
> Does anyone have a working rpm of mpv for rhel6 or centos6?
> Would appreciate a download link.

No, but it's in Fedora so rebuilding it for CentOS should be pretty easy.


Peter
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Re: [CentOS] mpv rpm

[Peter]

On 06/15/2015 03:54 PM, Peter wrote:
> On 06/15/2015 03:17 PM, jd1008 wrote:
>> Does anyone have a working rpm of mpv for rhel6 or centos6?
>> Would appreciate a download link.
> 
> No, but it's in Fedora so rebuilding it for CentOS should be pretty easy.

I should clarify, it's in RPMFusion for Fedora as well as Russian
Fedora, not in Fedora itself.


Peter
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Re: [CentOS] mpv rpm

[jd1008]

On 06/14/2015 09:54 PM, Peter wrote:

On 06/15/2015 03:17 PM, jd1008 wrote:

Does anyone have a working rpm of mpv for rhel6 or centos6?
Would appreciate a download link.

No, but it's in Fedora so rebuilding it for CentOS should be pretty easy.


Peter


Tried 2 rpms sources from fedora and they
have requirements that the fc6 repos cannot provide :(

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Re: [CentOS] mpv rpm

[jd1008]

On 06/14/2015 09:56 PM, Peter wrote:

On 06/15/2015 03:54 PM, Peter wrote:

On 06/15/2015 03:17 PM, jd1008 wrote:

Does anyone have a working rpm of mpv for rhel6 or centos6?
Would appreciate a download link.

No, but it's in Fedora so rebuilding it for CentOS should be pretty easy.

I should clarify, it's in RPMFusion for Fedora as well as Russian
Fedora, not in Fedora itself.


Peter

Yes,
I downloaded mpv-0.2.4-4.fc20.src.rpm from rpmfusion, and:

/usr/bin/yum-builddep -t --nogpgcheck -y mpv-0.2.4-4.fc20.src.rpm
says:
Error: No Package found for libquvi-devel

and I tried
mpv-0.3.11-1.fc20.src.rpm
and for that, I get:
/usr/bin/yum-builddep -t --nogpgcheck -y mpv-0.3.11-1.fc20.src.rpm

Error: No Package found for libcdio-paranoia-devel

plus I tried:
/usr/bin/yum-builddep -t --nogpgcheck -y mpv-0.9.1-1.fc22.src.rpm

Error: No Package found for compat-lua-devel

3 strikes, and I'm out :) :)






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Re: [CentOS] mpv rpm

[Peter]

On 06/15/2015 04:09 PM, jd1008 wrote:
> I downloaded mpv-0.2.4-4.fc20.src.rpm from rpmfusion, and:
> 
> /usr/bin/yum-builddep -t --nogpgcheck -y mpv-0.2.4-4.fc20.src.rpm
> says:
> Error: No Package found for libquvi-devel

You can get that, as well as most deps from nux-dextop:
http://li.nux.ro/repos.html


Peter
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Re: [CentOS] mpv rpm

[jd1008]

On 06/14/2015 10:12 PM, Peter wrote:

On 06/15/2015 04:09 PM, jd1008 wrote:

I downloaded mpv-0.2.4-4.fc20.src.rpm from rpmfusion, and:

/usr/bin/yum-builddep -t --nogpgcheck -y mpv-0.2.4-4.fc20.src.rpm
says:
Error: No Package found for libquvi-devel

You can get that, as well as most deps from nux-dextop:
http://li.nux.ro/repos.html



Problem with the nux repo is that it really screws
up dependencies for other packages that depend on
slightly older versions and so I have enough headaches
as it is :)


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Re: [CentOS] Any alternative to Single User Mode

[Animesh Pandey]

On Sun, Jun 14, 2015 at 10:51 PM, jd1008  wrote:

>
>
> On 06/14/2015 08:02 PM, Animesh Pandey wrote:
>
>> On Sun, Jun 14, 2015 at 9:47 PM, jd1008  wrote:
>>
>>
>>> On 06/14/2015 07:36 PM, Animesh Pandey wrote:
>>>
>>>  On Sun, Jun 14, 2015 at 9:06 PM, jd1008  wrote:


  On 06/14/2015 06:47 PM, Animesh Pandey wrote:
>
>   I actually opened the Virtual Disk Image (.vdi) on
>
>> http://www.vmxray.com/
>> .
>> I could see that despite my disk being of 100GB only ~65GB was being
>> shown.
>> All the stuff related ot the local user was not visible at all.
>> After I restarted my VM, the OS gets stuck here (
>> http://i.stack.imgur.com/KVYxV.png). Even after trying the single
>> user
>> login it was stuck there. But the emergency mode worked alright.
>>
>> On Sun, Jun 14, 2015 at 8:37 PM, jd1008  wrote:
>>
>>
>>   On 06/14/2015 06:28 PM, Animesh Pandey wrote:
>>
>>>Hi,
>>>
>>>  I am working on Centos6.6 on a VirtualBox on Windows Host. Today I
 started
 to have booting issues in the OS. It won't get past the loading
 screen.
 I
 checked and found that the files related to the user "cloudera" on
 the
 system were not accessible. Only the files related to root were
 accessible.
 This is why I was am not able to do a single user login but an
 emergency
 login was possible. This is just a guess.
 This all happened due to some update in the Virtual Machine that I
 use
 to
 run CentOS.

 Is there any workaround for this issue?

 Thanks and regards,
 Animesh Pandey

I wish you could provide more info.

  How can you determine that inaccessibility to a user's
>>> files will prevent centos from taking you all the way to
>>> the login (or welcome) screen?
>>>
>>> I think something else is going on and my guess is that
>>> the centos files themselves have been corruped.
>>> Can you re-install centos ?
>>>
>>>   Please do not top-post.
>>>
>> I am having trouble following your terminology.
> Emergency model?
> On my centos installation, there is no "Emergency "
> to select from the list of kernels to boot.
>
> Also, when you say "worked alright" do you
> mean that you were able to access what you thought
> was missing?
> Can you go to full multiuser?
>
>
>
>   Sorry for top posting.
>
 Let me give you a clearer idea.

 1. My regular boot freezes after loading is completed.
 2. I read on the internet that sometimes due to an update in VirtualBox,
 this error might occur. To rectify it, I must re-install VirtualBox's
 Guest
 Additions. For this, I require booting in a Single User Mode.
 3. For that, I followed the correct steps as given here (


 https://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-rescuemode-booting-single.html
 ).
 But still the system froze on that same point.
 4. Then I read about an Emergency mode which is even lower level to that
 of
 Single User mode. I was able to log in and see the files that I
 created/modified as root. I could not see any file/folder that related
 the
 local user "cloudera" on which I used to work. This is where I thought
 of
 seeing the contents of the Image using vmxray.com and found that a
 large
 part of the dick is not visible. This part contains that files related
 to
 "cloudera". I felt as if any information related to "cloudera" user has
 been lost.

 I basically need to access files that I made as "cloudera" on CENTOS and
 if
 possible re-install the Guest Additions that ma solve this issue. But
 for
 this I need to be able to boot as a Single User.

  I assume you are using a virtual drive, which is a file on the host
>>> machine (You said windows??? ).
>>> If you can somehow use a tool to dump that disk image to
>>> a real hard drive (for example using dd ), and connect
>>> the hard drive a a working linux computer to run fsck on it
>>> to see what it will find.
>>> I assume you have no backup of your drive???
>>>
>>>
>>> ___
>>> CentOS mailing list
>>> CentOS@centos.org
>>> http://lists.centos.org/mailman/listinfo/centos
>>>
>>>  Yes it is windows. By dumping a disk image do you mean a VDI (VirtualBox
>> Disk Image). These are files that are used by VirtualBox for booting. I
>> have a copy of that as well. Can Gparted be used for connecting that VDI?
>>
>>  You will more than likely need a conversion tool to convert a vdi
> image to a normal HD image. I do not know of such a tool.
>
> Another possibility is to create another VM, install your linux on it
> with it's own separate disk, but add you bad

Re: [CentOS] Any alternative to Single User Mode

[jd1008]

On 06/14/2015 10:27 PM, Animesh Pandey wrote:

On Sun, Jun 14, 2015 at 10:51 PM, jd1008  wrote:



On 06/14/2015 08:02 PM, Animesh Pandey wrote:


On Sun, Jun 14, 2015 at 9:47 PM, jd1008  wrote:



On 06/14/2015 07:36 PM, Animesh Pandey wrote:

  On Sun, Jun 14, 2015 at 9:06 PM, jd1008  wrote:


  On 06/14/2015 06:47 PM, Animesh Pandey wrote:

   I actually opened the Virtual Disk Image (.vdi) on


http://www.vmxray.com/
.
I could see that despite my disk being of 100GB only ~65GB was being
shown.
All the stuff related ot the local user was not visible at all.
After I restarted my VM, the OS gets stuck here (
http://i.stack.imgur.com/KVYxV.png). Even after trying the single
user
login it was stuck there. But the emergency mode worked alright.

On Sun, Jun 14, 2015 at 8:37 PM, jd1008  wrote:


   On 06/14/2015 06:28 PM, Animesh Pandey wrote:


Hi,

  I am working on Centos6.6 on a VirtualBox on Windows Host. Today I

started
to have booting issues in the OS. It won't get past the loading
screen.
I
checked and found that the files related to the user "cloudera" on
the
system were not accessible. Only the files related to root were
accessible.
This is why I was am not able to do a single user login but an
emergency
login was possible. This is just a guess.
This all happened due to some update in the Virtual Machine that I
use
to
run CentOS.

Is there any workaround for this issue?

Thanks and regards,
Animesh Pandey

I wish you could provide more info.

  How can you determine that inaccessibility to a user's

files will prevent centos from taking you all the way to
the login (or welcome) screen?

I think something else is going on and my guess is that
the centos files themselves have been corruped.
Can you re-install centos ?

   Please do not top-post.


I am having trouble following your terminology.

Emergency model?
On my centos installation, there is no "Emergency "
to select from the list of kernels to boot.

Also, when you say "worked alright" do you
mean that you were able to access what you thought
was missing?
Can you go to full multiuser?



   Sorry for top posting.


Let me give you a clearer idea.

1. My regular boot freezes after loading is completed.
2. I read on the internet that sometimes due to an update in VirtualBox,
this error might occur. To rectify it, I must re-install VirtualBox's
Guest
Additions. For this, I require booting in a Single User Mode.
3. For that, I followed the correct steps as given here (


https://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-rescuemode-booting-single.html
).
But still the system froze on that same point.
4. Then I read about an Emergency mode which is even lower level to that
of
Single User mode. I was able to log in and see the files that I
created/modified as root. I could not see any file/folder that related
the
local user "cloudera" on which I used to work. This is where I thought
of
seeing the contents of the Image using vmxray.com and found that a
large
part of the dick is not visible. This part contains that files related
to
"cloudera". I felt as if any information related to "cloudera" user has
been lost.

I basically need to access files that I made as "cloudera" on CENTOS and
if
possible re-install the Guest Additions that ma solve this issue. But
for
this I need to be able to boot as a Single User.

  I assume you are using a virtual drive, which is a file on the host

machine (You said windows??? ).
If you can somehow use a tool to dump that disk image to
a real hard drive (for example using dd ), and connect
the hard drive a a working linux computer to run fsck on it
to see what it will find.
I assume you have no backup of your drive???


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  Yes it is windows. By dumping a disk image do you mean a VDI (VirtualBox

Disk Image). These are files that are used by VirtualBox for booting. I
have a copy of that as well. Can Gparted be used for connecting that VDI?

  You will more than likely need a conversion tool to convert a vdi

image to a normal HD image. I do not know of such a tool.

Another possibility is to create another VM, install your linux on it
with it's own separate disk, but add you bad vdi disk
as a second drive. Once booted, use linux to fsck the second
drive.
Again, be sure you have a copy it before you connect it to this
new VM.


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I did exactly as you said. I used Gparted to create a secondary drive. I
can do "/dev/" to see the four partitions that my original VM had. How do I
go about it now?


So, the drive (you want to fix) is visible in the new vm.
Good.
be sure it is unmounted.
As root, run fsck /dev/sd?
You supply the value of ?
Is it b or c ...?

fsck could end up deleting files or even truncating them
to shorter lengths if bl

Re: [CentOS] mpv rpm

[Peter]

On 06/15/2015 04:24 PM, jd1008 wrote:
> Problem with the nux repo is that it really screws
> up dependencies for other packages that depend on
> slightly older versions and so I have enough headaches
> as it is :)

Can you be more specific?  I haven't had issues with nux.


Peter
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Re: [CentOS] Any alternative to Single User Mode

[Animesh Pandey]

On Mon, Jun 15, 2015 at 12:33 AM, jd1008  wrote:

>
>
> On 06/14/2015 10:27 PM, Animesh Pandey wrote:
>
>> On Sun, Jun 14, 2015 at 10:51 PM, jd1008  wrote:
>>
>>
>>> On 06/14/2015 08:02 PM, Animesh Pandey wrote:
>>>
>>>  On Sun, Jun 14, 2015 at 9:47 PM, jd1008  wrote:


  On 06/14/2015 07:36 PM, Animesh Pandey wrote:
>
>   On Sun, Jun 14, 2015 at 9:06 PM, jd1008  wrote:
>
>>
>>   On 06/14/2015 06:47 PM, Animesh Pandey wrote:
>>
>>>I actually opened the Virtual Disk Image (.vdi) on
>>>
>>>  http://www.vmxray.com/
 .
 I could see that despite my disk being of 100GB only ~65GB was being
 shown.
 All the stuff related ot the local user was not visible at all.
 After I restarted my VM, the OS gets stuck here (
 http://i.stack.imgur.com/KVYxV.png). Even after trying the single
 user
 login it was stuck there. But the emergency mode worked alright.

 On Sun, Jun 14, 2015 at 8:37 PM, jd1008  wrote:


On 06/14/2015 06:28 PM, Animesh Pandey wrote:

  Hi,
>
>   I am working on Centos6.6 on a VirtualBox on Windows Host. Today
> I
>
>> started
>> to have booting issues in the OS. It won't get past the loading
>> screen.
>> I
>> checked and found that the files related to the user "cloudera" on
>> the
>> system were not accessible. Only the files related to root were
>> accessible.
>> This is why I was am not able to do a single user login but an
>> emergency
>> login was possible. This is just a guess.
>> This all happened due to some update in the Virtual Machine that I
>> use
>> to
>> run CentOS.
>>
>> Is there any workaround for this issue?
>>
>> Thanks and regards,
>> Animesh Pandey
>>
>> I wish you could provide more info.
>>
>>   How can you determine that inaccessibility to a user's
>>
> files will prevent centos from taking you all the way to
> the login (or welcome) screen?
>
> I think something else is going on and my guess is that
> the centos files themselves have been corruped.
> Can you re-install centos ?
>
>Please do not top-post.
>
>  I am having trouble following your terminology.

>>> Emergency model?
>>> On my centos installation, there is no "Emergency "
>>> to select from the list of kernels to boot.
>>>
>>> Also, when you say "worked alright" do you
>>> mean that you were able to access what you thought
>>> was missing?
>>> Can you go to full multiuser?
>>>
>>>
>>>
>>>Sorry for top posting.
>>>
>>>  Let me give you a clearer idea.
>>
>> 1. My regular boot freezes after loading is completed.
>> 2. I read on the internet that sometimes due to an update in
>> VirtualBox,
>> this error might occur. To rectify it, I must re-install VirtualBox's
>> Guest
>> Additions. For this, I require booting in a Single User Mode.
>> 3. For that, I followed the correct steps as given here (
>>
>>
>>
>> https://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-rescuemode-booting-single.html
>> ).
>> But still the system froze on that same point.
>> 4. Then I read about an Emergency mode which is even lower level to
>> that
>> of
>> Single User mode. I was able to log in and see the files that I
>> created/modified as root. I could not see any file/folder that related
>> the
>> local user "cloudera" on which I used to work. This is where I thought
>> of
>> seeing the contents of the Image using vmxray.com and found that a
>> large
>> part of the dick is not visible. This part contains that files related
>> to
>> "cloudera". I felt as if any information related to "cloudera" user
>> has
>> been lost.
>>
>> I basically need to access files that I made as "cloudera" on CENTOS
>> and
>> if
>> possible re-install the Guest Additions that ma solve this issue. But
>> for
>> this I need to be able to boot as a Single User.
>>
>>   I assume you are using a virtual drive, which is a file on the host
>>
> machine (You said windows??? ).
> If you can somehow use a tool to dump that disk image to
> a real hard drive (for example using dd ), and connect
> the hard drive a a working linux computer to run fsck on it
> to see what it will find.
> I assume you have no backup of your drive???
>
>
> ___
> CentOS mailing list
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> http://lists.centos.org/mailman/listinfo/centos
>
>   Yes it is windows. B