How do I install Fedora 31 on LVM on LUKS configuration ?

[Sreyan Chakravarty]

The current Anaconda installer is unable to install Fedora to an encrypted 
partition. Is there anyway I can have one big encrypted partition, decrypt it, 
create a LVM and install Fedora. It seems I can't do that with the current 
Anaconda. If I have to use encryption and LVM what it does is first create the 
LVM and then encrypt the logical volumes that I specify. I want just the 
reverse.

More information about the Anaconda bug is here:
https://ask.fedoraproject.org/t/ananconda-cant-handle-lvm-on-luks-setup/6112

Thanks.
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Re: Why can I view my encrypted lvm logical volumes without opening them with my passphrase?

[Sreyan Chakravarty]

> On 4/3/20 2:48 AM, Sreyan Chakravarty wrote:
> 
> 
> I'm not familair with encryption on Fedora other than LUKS, and your 
> lsblk output doesn't look like you're using LUKS.  Have you looked at 
> /etc/crypttab or /etc/fstab for other hints as to what type of 
> encryption you're using?

Here is my output from /etc/crypttab and /etc/fstab

 /etc/crypttab :

luks-65efaad8-7775-4f86-ac47-f8e266b3ed41 
UUID=65efaad8-7775-4f86-ac47-f8e266b3ed41 none disca

/etc/fstab:

/dev/mapper/luks-65efaad8-7775-4f86-ac47-f8e266b3ed41 /   
ext4defaults,x-systemd.device-timeout=0 1 1
UUID=0450aaba-fa52-47cb-95e7-e818e8e6a9fe /boot   ext4
defaults1 2
UUID=852E-5A7A  /boot/efi   vfat
umask=0077,shortname=winnt 0 2
UUID=c0577d65-a0f0-4e6c-b2cf-4e945e03a826 none swap sw 0 0


I have LUKS on LVM, that is LUKS is used when opening each LVM logical volume.
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Re: Why can I view my encrypted lvm logical volumes without opening them with my passphrase?

[Gordon Messmer]

On 4/3/20 2:48 AM, Sreyan Chakravarty wrote:
I just installed Fedora 31 on my laptop. I had created a volume group 
and logical volumes from the Anaconda installer itself. I had marked 
the checkbox for encrypting my fedora partition , and when booting I 
am asked my passphrase, so I thought everything was fine.



I'm not familair with encryption on Fedora other than LUKS, and your 
lsblk output doesn't look like you're using LUKS.  Have you looked at 
/etc/crypttab or /etc/fstab for other hints as to what type of 
encryption you're using?

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Re: unusual display problem

[fedora]

On 2020-04-04 10:31, Anthony F McInerney wrote:



On Fri, 3 Apr 2020 at 22:32, mailto:fed...@eyal.emu.id.au>> wrote:

On 2020-04-04 02:57, Anthony F McInerney wrote:
 >
 >
 > On Fri, 3 Apr 2020 at 04:30, mailto:fed...@eyal.emu.id.au> 
>> wrote:
 >
 >     On 2020-04-03 13:50, Anthony F McInerney wrote:
 >      > On Thu, 2 Apr 2020 at 22:52, mailto:fed...@eyal.emu.id.au> 
>  
 >     [trimmed]
 >
 >      > Not sure what kernel. If still pre 5.2 boot with  
i915.alpha_support=1 kernel parameter.
 >
 >     fc30 is on a decently recent kernel:
 >              Linux e7.eyal.emu.id.au  
 5.5.10-100.fc30.x86_64 #1 SMP Wed Mar 18 14:34:46 UTC 2020 
x86_64 x86_64 x86_64 GNU/Linux
 >
 >     --
 >     Eyal at Home (fed...@eyal.emu.id.au  
>)
 >     ___
 >
 > OK , another shot in the dark. CPU Temperature.

CPU temps are monitored/logged and there is no indication of a problem.

Next time this happens I will save Xorg.0.log and compare it to a "good" 
one.


Ah!. Another thought - Have you turned off the XFCE Compositor?  Settings > Window 
Manager Tweaks > Compositing > Untick


Did not visit those settings for a long while. Yes, the compositor is not 
enabled.

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Re: Cisco Webex Meetings Suite System on Fedora Linux

[Ranjan Maitra]

In my case, I point to institution name dot webex dot com and then you log in 
and it goes to my "Personal Room". I think that WebEx has to know what group 
you are associated with.

Try: www.webex.com and then use your e-mail address and see if it gets you to 
your personal room.

Ranjan

On Sat, 04 Apr 2020 00:55:38 +0200 Dario Lesca  wrote:

> Il giorno ven, 03/04/2020 alle 16.44 -0500, Ranjan Maitra ha scritto:
> > The only way appears to me to be to use the web version.
>
> Web version? how you can use it?
>
> If I point to Webex test page with Chromium or FF
>
>  https://join-test.webex.com/mc3300/fowardAction.do?siteurl=join-test
>
> I get " Your browser, browser version, or operating system is
> currently unsupported."
>
> Thanks
>
>
> --
> Dario Lesca
> (inviato dal mio Linux Fedora 31 Workstation)


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Re: unusual display problem

[Anthony F McInerney]

On Fri, 3 Apr 2020 at 22:32,  wrote:

> On 2020-04-04 02:57, Anthony F McInerney wrote:
> >
> >
> > On Fri, 3 Apr 2020 at 04:30,  fed...@eyal.emu.id.au>> wrote:
> >
> > On 2020-04-03 13:50, Anthony F McInerney wrote:
> >  > On Thu, 2 Apr 2020 at 22:52,  fed...@eyal.emu.id.au> >> wrote:
> >
> > [trimmed]
> >
> >  > Not sure what kernel. If still pre 5.2 boot
> with  i915.alpha_support=1 kernel parameter.
> >
> > fc30 is on a decently recent kernel:
> >  Linux e7.eyal.emu.id.au 
> 5.5.10-100.fc30.x86_64 #1 SMP Wed Mar 18 14:34:46 UTC 2020 x86_64 x86_64
> x86_64 GNU/Linux
> >
> > --
> > Eyal at Home (fed...@eyal.emu.id.au )
> > ___
> >
> > OK , another shot in the dark. CPU Temperature.
>
> CPU temps are monitored/logged and there is no indication of a problem.
>
> Next time this happens I will save Xorg.0.log and compare it to a "good"
> one.
>
>
> Ah!. Another thought - Have you turned off the XFCE Compositor?  Settings
> Window Manager Tweaks > Compositing > Untick
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Re: Cisco Webex Meetings Suite System on Fedora Linux

[Dario Lesca]

Il giorno ven, 03/04/2020 alle 16.44 -0500, Ranjan Maitra ha scritto:
> The only way appears to me to be to use the web version. 

Web version? how you can use it?

If I point to Webex test page with Chromium or FF

 https://join-test.webex.com/mc3300/fowardAction.do?siteurl=join-test

I get " Your browser, browser version, or operating system is
currently unsupported."

Thanks


-- 
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(inviato dal mio Linux Fedora 31 Workstation)
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Re: PCManFM??

[stan via users]

On Fri, 3 Apr 2020 18:43:45 - (UTC)
Beartooth  wrote:

>   Is PCManFM compatible with Fedora Mate & Compiz? A friend who
> runs Ubuntu recommends it. (Fwiw, I tried hard to get used to Gnome3,
> a couple times, and couldn't do it.)
> 

$ rpm -qi pcmanfm
Name: pcmanfm
Version : 1.3.1
Release : 2.D20181227git0619a81f.fc31.2
Architecture: x86_64
Install Date: Sat 03 Aug 2019 12:06:26 PM MST
Group   : Unspecified
Size: 1459677
License : GPLv2+
Signature   : RSA/SHA256, Fri 26 Jul 2019 11:24:33 PM MST, Key ID
50cb390b3c3359c4 Source RPM  :
pcmanfm-1.3.1-2.D20181227git0619a81f.fc31.2.src.rpm Build Date  : Fri
26 Jul 2019 03:37:33 AM MST Build Host  :
buildvm-14.phx2.fedoraproject.org Packager: Fedora Project
Vendor  : Fedora Project
URL : http://pcmanfm.sourceforge.net/
Bug URL : https://bugz.fedoraproject.org/pcmanfm
Summary : Extremly fast and lightweight file manager
Description :
PCMan File Manager is an extremly fast and lightweight file manager
which features tabbed browsing and user-friendly interface.

You should be able to do 
dnf install pnmanfm
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Re: Cisco Webex Meetings Suite System on Fedora Linux

[Ranjan Maitra]

The only way appears to me to be to use the web version. It is awful with poor 
bandwidth and I have never seen anyone on the screen.

I don't understand why the released client needs a bunch of 32-bit software and 
can not move to 64-bit, but oh, well.
Ranjan

On Fri, 3 Apr 2020 15:05:54 -0500 Richard Shaw  wrote:

> On Fri, Apr 3, 2020 at 3:01 PM Dario Lesca  wrote:
>
> > Hi, there is some way to connect to Cisco Webex Meetings Suite on Fedora
> > Linux?
> >
>
> https://help.webex.com/en-us/WBX61986/How-can-I-Join-a-Meeting-Using-64-bit-Red-Hat-Linux-6
>
> Doesn't look like fun though...
>
> Thanks,
> Richard


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Re: unusual display problem

[fedora]

On 2020-04-04 02:57, Anthony F McInerney wrote:



On Fri, 3 Apr 2020 at 04:30, mailto:fed...@eyal.emu.id.au>> wrote:

On 2020-04-03 13:50, Anthony F McInerney wrote:
 > On Thu, 2 Apr 2020 at 22:52, mailto:fed...@eyal.emu.id.au> 
>> wrote:

[trimmed]

 > Not sure what kernel. If still pre 5.2 boot with  i915.alpha_support=1 
kernel parameter.

fc30 is on a decently recent kernel:
         Linux e7.eyal.emu.id.au  
5.5.10-100.fc30.x86_64 #1 SMP Wed Mar 18 14:34:46 UTC 2020 x86_64 x86_64 x86_64 
GNU/Linux

-- 
Eyal at Home (fed...@eyal.emu.id.au )

___

OK , another shot in the dark. CPU Temperature.


CPU temps are monitored/logged and there is no indication of a problem.

Next time this happens I will save Xorg.0.log and compare it to a "good" one.

--
Eyal at Home (fed...@eyal.emu.id.au)
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Re: Cisco Webex Meetings Suite System on Fedora Linux

[Richard Shaw]

On Fri, Apr 3, 2020 at 4:26 PM Dario Lesca  wrote:

> Unfortunately this kind of meeting is necessary to my son who uses Fedora
> like me and must take a university exam.
> Curious as a university, don't worry about using products that are at
> least compatible with all S.O. ... or even better FOSS.
>

If you have enough horsepower, I would just run Windows 10 in a VM... You
can try boxes, I use VirtualBox.

Thanks,
Richard
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Re: Cisco Webex Meetings Suite System on Fedora Linux

[Dario Lesca]

Il giorno ven, 03/04/2020 alle 15.05 -0500, Richard Shaw ha scritto:
> https://help.webex.com/en-us/WBX61986/How-can-I-Join-a-Meeting-Using-64-bit-Red-Hat-Linux-6
> 
> Doesn't look like fun though...

Thanks Richard 

I have try this howto, but so far, I haven't been able to get it
working ... I will continue to try

Someone have try this "fun" howto?

Many Thanks 


NOTE: 
Unfortunately this kind of meeting is necessary to my son who uses
Fedora like me and must take a university exam.
Curious as a university, don't worry about using products that are at
least compatible with all S.O. ... or even better FOSS.


-- 
Dario Lesca
(inviato dal mio Linux Fedora 31 Workstation)
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Re: 404ing

[Christopher Marlow]

On Fri, 2020-04-03 at 10:51 -0700, Samuel Sieb wrote:
> On 4/3/20 9:46 AM, Christopher Marlow wrote:
> > Interesting... Fedora has yet bring up those updates that were
> > missed
> > yesterday. I waited the rest of yesterday until 11:45 AM CDT today
> > and
> > I ran sudo dnf update and this is what I got:
> 
> If you didn't get an error message from dnf, then all the updates
> were 
> done the first time.  If it gets a 404 from one mirror, it will try 
> other ones.  Also, those were delta rpm files in your list, so if it 
> can't download those, it will just go get the whole file instead.
> ___
> 

Ahhh Gotcha.



Thanks,
Chris
ch...@cwm030.com

Fedora 31 Workstation
With XFCE as my preferred desktop ( installed on top of gnome 3) 
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Re: Cisco Webex Meetings Suite System on Fedora Linux

[Richard Shaw]

On Fri, Apr 3, 2020 at 3:01 PM Dario Lesca  wrote:

> Hi, there is some way to connect to Cisco Webex Meetings Suite on Fedora
> Linux?
>

https://help.webex.com/en-us/WBX61986/How-can-I-Join-a-Meeting-Using-64-bit-Red-Hat-Linux-6

Doesn't look like fun though...

Thanks,
Richard
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Cisco Webex Meetings Suite System on Fedora Linux

[Dario Lesca]

Hi, there is some way to connect to Cisco Webex Meetings Suite on
Fedora Linux?
So far I have not found any way
Many thanks

-- 
Dario Lesca
(inviato dal mio Linux Fedora 31 Workstation)
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Re: Burning dual layer Bluray discs

[Richard Shaw]

On Fri, Apr 3, 2020 at 2:52 PM Thomas Schmitt  wrote:

> Hi,
>
> > Have to wait for payday to buy another (which is sad).
>
> And i am too thrifty. Shame on me. My only excuse is the usual reason
> that i am an unpaid volunteer. (This saves me from implementing UDF, too.)
>
> I just had a look at the market in germany:
> My usual hardware provider wants 37.85 EUR for 5 pieces Verbatim 100 GB,
> or 25.63 EUR for 5 x 50 GB. But there is some hope: 25 x 50 GB no-name
> for 44.80. 50 x 25 GB single-layer Verbatim are at sale for 26.94.
> So double-layer is now just twice as expensive per GB.
>
> Ridiculous: 5 x 100 GB Verbatim M-Disc for 71.70.
>

I was initially avoiding no-name discs but found some RiData discs with
good ratings for $44USD for 25 50GB discs.

EUR and USD are pretty close right now so looks like about the same price.

Thanks,
Richard
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Re: Burning dual layer Bluray discs

[Thomas Schmitt]

Hi,

i wrote:
> > Afaik, K3B uses growisofs as burn backend. It formats BD-R media
> > by default,

Richard Shaw wrote:
> I'm assuming it can format on the fly? There was no "formatting" stage. 

It does this automatically before writing begins. BD-R formatting does
not last long. Other than with BD-RE the drive cannot write and checkread
all blocks just for a test.

growisofs_mmc.cpp emits a message in function bd_r_format()
fprintf (stderr,"%s: pre-formatting blank BD-R for %.1fGB...\n",
ioctl_device,(f[0]<<24|f[1]<<16|f[2]<<8|f[3])*2048.0/1e9);

This undocumented growisofs option can suppress BD-R formatting:
  -use-the-force-luke=spare=none


> Have to wait for payday to buy another (which is sad).

And i am too thrifty. Shame on me. My only excuse is the usual reason
that i am an unpaid volunteer. (This saves me from implementing UDF, too.)

I just had a look at the market in germany:
My usual hardware provider wants 37.85 EUR for 5 pieces Verbatim 100 GB,
or 25.63 EUR for 5 x 50 GB. But there is some hope: 25 x 50 GB no-name
for 44.80. 50 x 25 GB single-layer Verbatim are at sale for 26.94.
So double-layer is now just twice as expensive per GB.

Ridiculous: 5 x 100 GB Verbatim M-Disc for 71.70.


Have a nice day :)

Thomas
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Re: PCManFM??

[Ranjan Maitra]

I would guess that it is compatible. But I use spacefm and no DE so I do not 
really know.

Ranjan

On Fri, 3 Apr 2020 18:43:45 - (UTC) Beartooth  wrote:

>
>   Is PCManFM compatible with Fedora Mate & Compiz? A friend who runs
> Ubuntu recommends it. (Fwiw, I tried hard to get used to Gnome3, a couple
> times, and couldn't do it.)
>
> --
> Beartooth Staffwright, Not Quite Clueless Power User
> Remember I know little (precious little!) of where up is.
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Re: Burning dual layer Bluray discs

[Richard Shaw]

On Fri, Apr 3, 2020 at 2:44 AM Thomas Schmitt  wrote:

> Hi,
>
> Richard Shaw wrote:
> > I wanted to use libburn as the fork of the cdrecord apps are known toi
> > have issues. Not sure what the problem was but after spinning up a bunch
> > of times it just crapped out with an unhelpful error.
>
> I'm the developer of libburn, which works underneath Xfburn, cdrskin,
> and xorriso.
> I know from xorriso users that they burnt multi-layer BD-R successfully.
>

Hey Thomas, yeah been a while, we worked on getting the libburnia suite of
stuff up to date in Fedora a few years ago.


But reports are sparse and the price for multi-layer BDs is still too
> high in comparison to single-layer. So i don't have any.
> (I am using single-layer BD-RE with my old application scdbackup, which
>  writes large directory trees to multiple media.)
>

Yeah, I mostly wanted it so I can backup with having to have "Disc 1 of X"
type backups or create spanning images where I have to read all the disks
to find one file.



> If you want to give libburn another try with hopefully more informative
> messages, you could run xorriso.
>

I'm willing to try but that was my last disc from the first spindle I
ordered. Have to wait for payday to buy another (which is sad).



> For example put two directory trees into the resulting ISO 9660
> filesystem and burn it to the blank medium in /dev/sr0
>
>   dir_with_pics1=...path...
>   dir_with_pics2=...other.path...
>   xorriso -outdev /dev/sr0 \
>   -for_backup \
>   -map "$dir_with_pics1" /pics1 \
>   -map "$dir_with_pics2" /pics2
>

> Afaik, K3B uses growisofs as burn backend. It formats BD-R media by
> default,
> which cdrecord and libburn do not.
>

Ok, yeah I saw both mkisofs and growisofs in the log window.



> growisofs surely has no knowledge about multi-layer BDs. Its development
> ended shortly after single-layer BD became widely available. I studied its
> source code when i prepared libburn for BD.
> So if it does something different than the others, then i bet on the
> formatting.
>

I'm assuming it can format on the fly? There was no "formatting" stage.

Thanks,
Richard
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PCManFM??

[Beartooth]

Is PCManFM compatible with Fedora Mate & Compiz? A friend who runs 
Ubuntu recommends it. (Fwiw, I tried hard to get used to Gnome3, a couple 
times, and couldn't do it.)

-- 
Beartooth Staffwright, Not Quite Clueless Power User
Remember I know little (precious little!) of where up is.
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Re: Anyone have luck with Folding@Home and OpenCL on AMD RX580?

[Richard Shaw]

Ok, I THINK i may have got it working!!!

For posterity here are the amdgpu (amd proprietary) packages I had to
install. I'm still running the open source drivers for video.

# rpm -qa | grep amdgpu
libdrm-amdgpu-2.4.99-967956.el8.x86_64
libdrm-amdgpu-common-1.0.0-967956.el8.noarch
clinfo-amdgpu-pro-19.50-967956.el8.x86_64
opencl-amdgpu-pro-comgr-19.50-967956.el8.x86_64
amdgpu-pro-core-19.50-967956.el8.noarch
opencl-orca-amdgpu-pro-icd-19.50-967956.el8.x86_64
libopencl-amdgpu-pro-19.50-967956.el8.x86_64

There were two more things I had to do to get it working.

1. It seems most programs aren't smart enough to go through all the vendors
in /etc/OpenCL/vendors and find the working one, they try the first and
give up.

2. Once you have FAH running and it doesn't find a GPU the first time it
stops looking and you can't add it manually. You have to edit
/etc/fahclient/config.xml and remove the "GPU=False" line and restart
FAHClient.

Thanks,
Richard
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Re: 404ing

[Samuel Sieb]

On 4/3/20 9:46 AM, Christopher Marlow wrote:

Interesting... Fedora has yet bring up those updates that were missed
yesterday. I waited the rest of yesterday until 11:45 AM CDT today and
I ran sudo dnf update and this is what I got:


If you didn't get an error message from dnf, then all the updates were 
done the first time.  If it gets a 404 from one mirror, it will try 
other ones.  Also, those were delta rpm files in your list, so if it 
can't download those, it will just go get the whole file instead.

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Re: 404ing

[Christopher Marlow]

Interesting... Fedora has yet bring up those updates that were missed
yesterday. I waited the rest of yesterday until 11:45 AM CDT today and
I ran sudo dnf update and this is what I got:

[chris@localhost ~]$ sudo dnf update

[sudo] password for chris: 

Last metadata expiration check: 0:01:02 ago on Fri 03 Apr 2020 11:43:02
AM CDT.

Dependencies resolved.

Nothing to do.
Complete!

[chris@localhost ~]$ 
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Re: unusual display problem

[Anthony F McInerney]

On Fri, 3 Apr 2020 at 04:30,  wrote:

> On 2020-04-03 13:50, Anthony F McInerney wrote:
> > On Thu, 2 Apr 2020 at 22:52,  fed...@eyal.emu.id.au>> wrote:
>
> [trimmed]
>
> > Not sure what kernel. If still pre 5.2 boot with  i915.alpha_support=1
> kernel parameter.
>
> fc30 is on a decently recent kernel:
> Linux e7.eyal.emu.id.au 5.5.10-100.fc30.x86_64 #1 SMP Wed Mar 18
> 14:34:46 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
>
> --
> Eyal at Home (fed...@eyal.emu.id.au)
> ___
>
> OK , another shot in the dark. CPU Temperature.
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Re: 404ing

[sixpack13]

On 03.04.20 15:18, Ben Cotton wrote:

...

Let's focus future replies on helping our community members learn in
constructive ways.


+2

--
sixpack13
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Re: Anyone have luck with Folding@Home and OpenCL on AMD RX580?

[Richard Shaw]

Reporting some partial success...

Their amdgpu-install program is useless so I just created a local
repository myself in /var/local and created a amdgpu.repo file in
/etc/yum.repos.d/ to point to it.

I finally figured out I needed the orca library and not the amdgpu library.
I thought my RX 580 was new enough but apparently mine falls into the
"legacy" OpenCL driver.

That got clinfo working for both the system version and the amdgpu version:

Platform #0: Clover
 `-- Device #0: Radeon RX 580 Series (POLARIS10, DRM 3.36.0,
5.5.13-200.fc31.x86_64, LLVM 9.0.0)
Platform #1: AMD Accelerated Parallel Processing
 `-- Device #0: Ellesmere
Platform #2: Portable Computing Language
 `-- Device #0: pthread-AMD Ryzen 5 2600 Six-Core Processor
Platform #3: Intel Gen OCL Driver

Notice the Ellesmere line. I get something similar from
/opt/amdgpu-pro/bin/clinfo.

So they both think it's working. I'm still getting clGetDeviceIDs: (-1)
from FAH and I have added fahclient to both the video and render groups.
Also I ensured that's actually getting passed to FAHClient which does not
work when using the SysV script.

# cat /proc/$(pidof FAHClient)/status | grep Groups
Groups: 39 578 863

39 is "video" and 578 is "render".

For posterity here's my /etc/systemd/system/FAHClient.service:

# systemctl cat FAHClient.service
# /etc/systemd/system/FAHClient.service
# /run/systemd/generator.late/FAHClient.service

[Unit]
Description=Folding@home Client
After=remote-fs.target
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
WorkingDirectory=/var/lib/fahclient
User=fahclient
ExecStart=/usr/bin/FAHClient /etc/fahclient/config.xml

Thanks,
Richard
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Re: 404ing

[Ben Cotton]

On Thu, Apr 2, 2020 at 7:11 PM Joe Zeff  wrote:
>
> Would you have preferred me to tell you to be a hoopy frood and DON'T PANIC?
>
> And, just for the record, I wasn't reacting to your question but to your
> Chicken Little response, thinking that just because part of your update
> had failed One Time, you'd never ever be able to update those packages.
> Things like this happen from time to time, and there's no reason to be
> concerned unless it doesn't clear up within a day or so.

The last sentence of this reply would have been sufficient on its own.
The remainder is unnecessary and un-Friend-ly.

Let's focus future replies on helping our community members learn in
constructive ways.

-- 
Ben Cotton
He / Him / His
Senior Program Manager, Fedora & CentOS Stream
Red Hat
TZ=America/Indiana/Indianapolis
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Re: Anyone have luck with Folding@Home and OpenCL on AMD RX580?

[Richard Shaw]

On Fri, Apr 3, 2020 at 7:04 AM Michal Schorm  wrote:

> Hi,
> I've been able to run FAH on my GTX 1060.
> They say the Nvidia setup should be much easier than for AMD GPU, but
> it is still a pain ... :/
>

Ironically I just "upgraded" from a GTX 1050 to my RX580 to get away from
the Nvidia proprietary drivers :)

I guess I could put in my GTX 1050 along side the RX580 and just use the
GTX for FAH?

Thanks,
Richard
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Re: Anyone have luck with Folding@Home and OpenCL on AMD RX580?

[Michal Schorm]

Hi,
I've been able to run FAH on my GTX 1060.
They say the Nvidia setup should be much easier than for AMD GPU, but
it is still a pain ... :/

I had to configure a firewall, download proprietary NVIDIA drivers and
install them (which means switching the nouveau kernel module for the
proprietary one) and install some additional libraries (needed by
FAH).
I've lost a day trying to set it up, searching WHAT and HOW [1] has to
be done - since the help from FAH project side is close to zero.

At the end, you have no idea, if it works or not, until the GPU
actually starts computing. but since it may take hours to get a work
unit for your GPU, you may find the correct configuration, but not
knowing it ...
It also means, it may have worked with the nouveau drivers, but I
couldn't know ... it's a total mess.
I highly discourage trying it unless they (FAH upstream) will have
better support for ... everything. And probably also until they
opensource the project again, so people for different distros could
help them. They just stuck their head to the sand ...
I have it running on Windows 7 now. :(

Here is my DNF history related to this task:
  dnf  install ./fahclient-7.5.1-1.x86_64.rpm
./fahcontrol-7.5.1-1.noarch.rpm ./fahviewer-7.5.1-1.x86_64.rpm
  dnf install /usr/lib64/libcuda.so /usr/lib64/libOpenCL.so
  dnf install --disablerepo=*
/tmp/akmods.i6AeSrCB/results/kmod-nvidia-340xx-5.5.8-200.fc31.x86_64-340.108-1.fc31.x86_64.rpm
  dnf remove xorg-x11-drv-nvidia-340xx-cuda-340.108-1.fc31.x86_64
  dnf install nvidia-modprobe
  dnf install kernel-devel kernel-headers gcc make dkms acpid
libglvnd-glx libglvnd-opengl libglvnd-devel pkgconfig
  dnf remove xorg-x11-drv-nouveau
  dnf remove *xorg*nvidia*
  dnf reinstall kernel-core
  dnf install opencl* libclc*
  install ocl-icd-devel.i686
  install /usr/bin/clinfo



Hope you get the idea ...

[1] https://www.if-not-true-then-false.com/2015/fedora-nvidia-guide/

--

Michal Schorm
Software Engineer
Core Services - Databases Team
Red Hat

--

On Thu, Apr 2, 2020 at 8:23 PM Richard Shaw  wrote:
>
> I recently setup Folding@Home on my Fedora 31 box and have it running on the 
> CPU no problem but the package is not without issues...
>
> It installs a SysV init script which SystemD generates a service file from 
> it, but fahclient runs as the fahclient user but AFAICT SystemD doesn't know 
> that, which I've read can cause problems with accessing the GPU.
>
> So I went ahead and wrote a SystemD service file for fahclient, but no luck. 
> I've also added fahclient to the video group, nope...
>
> I've installed the packages I think I need from AMD (which are really EL 8 
> packages) but they all install into /opt so my current theory is that FAH 
> isn't finding the libraries...
>
> Current OpenCL error is:
> OpenCL: Not Detected: clGetDeviceIDs() returned -1
>
> Anyone successfully got this working?
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Why can I view my encrypted lvm logical volumes without opening them with my passphrase?

[Sreyan Chakravarty]

I just installed Fedora 31 on my laptop. I had created a volume group and
logical volumes from the Anaconda installer itself. I had marked the
checkbox for encrypting my fedora partition , and when booting I am asked
my passphrase, so I thought everything was fine.

But when I am booting into a live environment and do an `lsblk` . This is
my output:

```
NAME  MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda 8:00 931.5G  0 disk
├─sda1  8:10   512M  0 part
├─sda2  8:20   512M  0 part
└─sda3  8:30 930.5G  0 part
  ├─vgfedora-root-real253:00   700G  0 lvm
  │ ├─vgfedora-root   253:10   700G  0 lvm
  │ └─vgfedora-before_hibernate   253:30   700G  0 lvm
  └─vgfedora-before_hibernate-cow 253:2050G  0 lvm
└─vgfedora-before_hibernate   253:30   700G  0 lvm
```

1. **How on earth are my Volume Groups visible from the live environment?**
I did not even open up with `cryptsetup open --type luks2 /dev/sda3` . What
is going on here ?
2. As you can see **I have created a snapshot, is that even encrypted ?**
Or is it only my root ? **I need everything to be encrypted even
snapshots.**
3. I can even do a `vgchange -a y` and select all my logical volumes.
**This really should not happen as it should not even be visible from the
live environment** . Again what is going on ?
4. **How can I verify what is encrypted and what is not ?**

My understanding was that the LVM would not even be visible since it is
under encryption. So how am I able to detect it from the live environment ?

Let me know if any other information is required.

Thanks.

-- 
Regards,
Sreyan Chakravarty
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Re: unusual display problem

[Patrick O'Callaghan]

On Fri, 2020-04-03 at 09:51 +1100, fed...@eyal.emu.id.au wrote:
> I thought I should try the pastebin link (mentioned in the guidlines) but it 
> seems to be for text only (?).

Not that I'm aware of. There are also plenty of other pastebin
equivalents. Some people use Google Drive, which works for anyone with
a Gmail account.

poc
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Re: Burning dual layer Bluray discs

[Thomas Schmitt]

Hi,

Richard Shaw wrote:
> I wanted to use libburn as the fork of the cdrecord apps are known toi
> have issues. Not sure what the problem was but after spinning up a bunch
> of times it just crapped out with an unhelpful error.

I'm the developer of libburn, which works underneath Xfburn, cdrskin,
and xorriso.
I know from xorriso users that they burnt multi-layer BD-R successfully.

But reports are sparse and the price for multi-layer BDs is still too
high in comparison to single-layer. So i don't have any.
(I am using single-layer BD-RE with my old application scdbackup, which
 writes large directory trees to multiple media.)

In general, multi-layer BD media offer few opportunities for doing it wrong
while doing it right with single-layer. Other than with DVD+/-R DL,
SCSI/MMC offers no special layer-jump modes and no command to set an
address for the layer jump to happen.
In principle multi-layer BD appears to the burn software like large
single-layer BD.

If you want to give libburn another try with hopefully more informative
messages, you could run xorriso.
For example put two directory trees into the resulting ISO 9660
filesystem and burn it to the blank medium in /dev/sr0

  dir_with_pics1=...path...
  dir_with_pics2=...other.path...
  xorriso -outdev /dev/sr0 \
  -for_backup \
  -map "$dir_with_pics1" /pics1 \
  -map "$dir_with_pics2" /pics2


> Finally I tried k3b which used mkisofs and it actually worked!

Afaik, K3B uses growisofs as burn backend. It formats BD-R media by default,
which cdrecord and libburn do not.

growisofs surely has no knowledge about multi-layer BDs. Its development
ended shortly after single-layer BD became widely available. I studied its
source code when i prepared libburn for BD.
So if it does something different than the others, then i bet on the
formatting.


To let xorriso format the BD-R, insert command -format with mode "as_needed"
after -outdev :

  xorriso -outdev /dev/sr0 \
  -format as_needed \
  -for_backup \
  -map "$dir_with_pics1" /pics1 \
  -map "$dir_with_pics2" /pics2

Formatted BD media show low write speed due to frequent checkreading after
write. This checkreading can be suppressed by libburn.
For full speed with formatted BD, insert command -stream_recording with
parameter "full":

  xorriso -outdev /dev/sr0 \
  -format as_needed \
  -stream_recording full \
  -for_backup \
  -map "$dir_with_pics1" /pics1 \
  -map "$dir_with_pics2" /pics2

Normally one would not format a BD-R and then disable checkreading.
But just in case that the drive only can write to formatted ones, this
combination could make sense.

If formatting turns out to be the decisive trick, you may format the
BD-R in a xorriso run and then use it with a GUI program that offers
no option formatting. Like:

  xorriso -outdev /dev/sr0 -format as_needed


> For posterity I specified a UDF based filesystem.

The filesystem should have no influence on burn success.

As long it is for mounting on Linux or MS-Windows, ISO 9660 is ok even
for large files. The BSDs and Solaris have problems with data files
larger than 4 GiB - 1. (Whether their UDF drivers are any better, i can't
tell.)
The overall size of a 100 GB filesystem should be no problem to any
operating system's ISO 9660 driver.


Have a nice day :)

Thomas
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