Re: [DNG] How to mount NTFS

2020-08-09 Thread Rick Moen
Quoting Haines Brown (hai...@histomat.net):

> With a sector of 512 bytes, it fat32 is apparently limit to 2 Tb. I'm 
> unclear whether a limit on the number of files becomes a problem. Vfat 
> might be analternative.

VFAT _is_ FAT32, just with a very dodgy long-filename extension.

Of possible historical interest:  The user group editorial from 
1995 when I sleuthed out the fairly ghastly details:
http://linuxmafia.com/faq/Legacy_Microsoft/win95-bn.html#vfat
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Re: [DNG] How to mount NTFS

2020-08-09 Thread Rick Moen
Quoting Simon Hobson (li...@thehobsons.co.uk):

> I have a suggestion ...
> Create a small partition in NTFS or Fat, and put some files on there
> saying what else is on the drive - and some hints on how to access it.

Well, and (assuming this drive is in an external case) attach ruggedly
to the case a prominent note explaining what the drive contains and 
what file within, in which one can find further details.

I've gone through variants of this problem, and you as a planner need to 
ensure that anyone casually looking at the object can grasp the essence
of the problem within a few seconds of glancing, and motivate him/her to
get the object to an appropriate person.

Usually prominent in such plans is a sealed envelope, entrusted to
someone believed reliable, that says 'Open in the event of $PERSON'S
death or incapacitation.' 

On reflection, maybe further measures are in order, like two or three
other people having similar sealed envelopes that, when open, reveal
only a note in red lettering saying 'Tell $BELIEVED_RELIABLE_PERSON to 
open his damned envelope already.'

-- 
Cheers, "My hot flight attendant asked how I like my coffee.  
Rick Moen   And that's when she told me:  'That's cute, honey, but 
r...@linuxmafia.com the coffee's free.  You don't have to pay for it, here."
McQ! (4x80)(seen on Twitter)
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Re: [DNG] How to mount NTFS

2020-08-09 Thread Simon Hobson
Haines Brown  wrote:

> I left the drive NTFS because I wanted easy access to the drive for folks 
> (granschildren) who do not run Linux. 
> 
> Othersie I prefer ext4. When you say NTFS is slower, to you mean three times 
> slower (which I am experiencing) or a bit slower?

In my experience, as already said, very significantly slower - so yes, could 
easily be the /3 performance hit you've observed.

I have a suggestion ...
Create a small partition in NTFS or Fat, and put some files on there saying 
what else is on the drive - and some hints on how to access it. The way things 
are, it is highly unlikely that none of the intended recipients would not know 
anyone with the skills and ability to read the backups - as long as they (your 
descendants) actually know what to ask.
So yes, if you just have an EXT4 partition, they'll have no idea - if they get 
a small disk with notes saying "the files are on another partition - find 
someone who knows Linux or [list of other OSs that handle EXT4], or find 
software for your Windows machine that can handle it (it does exist), then 
they'll have the basic information to get at your files.

PS - yes, I second the suggestion for rsync.

Simon
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Re: [DNG] How to mount NTFS

2020-08-09 Thread Hendrik Boom
On Sun, Aug 09, 2020 at 03:04:12PM -0400, Haines Brown wrote:
> On Sun, Aug 09, 2020 at 05:33:16PM +0100, g4sra via Dng wrote:
> > 
> > My bad, changed from '#!/bin/bash' syntax to '#!/bin/sh'
> > 
> > # this must follow immediately after the mount command
> > if [ $? -ne 0 ]; then
> >   echo "Mount Failed!"
> >   exit 1
> > fi
> 
> I'll give it a try. Thanks.
> 
> > Easy access to files is exactly why I use 'rsync', no need to go down the 
> > painful
> > 'restore master backup' followed by 'restore all further incremental 
> > backups'.
> > Plus it only copies as required and optionally backs up the backup.
> > So you get protection against 'User' error as well as device failure.
> > Trust me on this, read the 'rsync' manual.
> 
> I'll look into that.

And there's rdiff-backup.  It's the one I use.

Keeps old versions of files as well as new ones.
The latest version is just there in the file system, as if everything
just got copied there.  I've oftern been able to restore single files 
with the normal shell tools.

There are mechanisms whereby it can save pernissions, attributes and the 
like even if the backup file system doesn't handle them itself  If yo 
use rdiff-backup to restore files instead of just cp, it will 
find and restore these extras as well.

And it will also do backups over the net if you have rdiff-backup 
available on two hosts.  When on of my machines USB ports failed, I 
could happily run my backups from my laptop, connecting to the failing 
machine by rdiff-backup over ssh.  Not as fast, but it worked.

-- hendrik


> -- 
> Haines Brown  
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Re: [DNG] How to mount NTFS

2020-08-09 Thread Haines Brown
On Sun, Aug 09, 2020 at 05:33:16PM +0100, g4sra via Dng wrote:
> 
> My bad, changed from '#!/bin/bash' syntax to '#!/bin/sh'
> 
> # this must follow immediately after the mount command
> if [ $? -ne 0 ]; then
>   echo "Mount Failed!"
>   exit 1
> fi

I'll give it a try. Thanks.

> Easy access to files is exactly why I use 'rsync', no need to go down the 
> painful
> 'restore master backup' followed by 'restore all further incremental backups'.
> Plus it only copies as required and optionally backs up the backup.
> So you get protection against 'User' error as well as device failure.
> Trust me on this, read the 'rsync' manual.

I'll look into that.

-- 
Haines Brown  
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Re: [DNG] How to mount NTFS

2020-08-09 Thread Haines Brown
On Sun, Aug 09, 2020 at 01:38:57PM -0400, Hendrik Boom wrote:
> On Sun, Aug 09, 2020 at 12:02:37PM -0400, Haines Brown wrote:
> > On Sat, Aug 08, 2020 at 12:11:46AM +0200, Harald Arnesen via Dng wrote:
> > > Haines Brown [07.08.2020 18:19]:
> > > 
> > > > Yes, for sure. If you are right about the speed difference between 
> > > > NTFS and ext4, then is there another FS that can be accessed by a 
> > > > Windows machine that is not much slower than ext4?
> > > 
> > > fat32. Or if you run a recent kernel on your Linux machine (Devuan 5.4
> > > is ok), then exfat.
> > > -- 
> > > Hilsen Harald
> > 
> > Hilsen, going to fat32 might be my bset bet if its speed is more like 
> > ext4 than ntfs. Is it the consensus that this is the case?
> 
> Isn't there a limit on the number of data blocks you can have 
> on a FAT volume?
> Meaning that for large volumes you end up with absurdly large blocks.   
> And because you can't pack multiple files into a data block, this limits
> the number of files you can have.

With a sector of 512 bytes, it fat32 is apparently limit to 2 Tb. I'm 
unclear whether a limit on the number of files becomes a problem. Vfat 
might be analternative.


> 
> -- hendrik
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-- 
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Re: [DNG] Zoom? Rather not...

2020-08-09 Thread Marjorie Roome via Dng
On Thu, 2020-08-06 at 01:00 +0200, marc...@welz.org.za wrote:
> The concern about using any gratis commercial videoconferencing
> service is that quite a bit of biometric information can be
> collected from you - in particular your voice and your face. 
> Your personal files are just a bonus. 
> 
> Recall a while ago some company called clearview.ai made the
> news - given a picture of a person it finds all the other
> photos of that person online, and does a good job of it too.
> 
> Any videoconferencing service is remarkably well positioned to
> generate an excellent facial model of you - given that there
> is a bit of motion and much data of you staring at the camera,
> a high-quality 3D model of your face can be constructed easily.
> 
Zoom is introducing optional end-to-end encryption which would avoid
this, after protest for free accounts as well as paid accounts, though
free accounts would also need to verify themselves by providing a
contactable phone number.

The reason they say it can't be automatic is that it wont be available
for  dial-in phones, SIP/H.323 devices, web browsers, Zoom webinars,
and Zoom chat. 

This seems more of a potential interception threat to some commercial
uses (since some conference room facilities currently use dial-in for
sound) if you can't then access end-to-end encryption.

You also have to decide to enable it on a per session basis. 

Has anyone checked what their current TOC/EULA says about use of the
images/sounds they can intercept on their servers?

-- 
Marjorie


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Re: [DNG] Zoom?

2020-08-09 Thread Marjorie Roome via Dng
On Wed, 2020-08-05 at 15:39 -0400, Haines Brown wrote:
> I've installed the .deb file on my bewowulf 3 deskotop. It seems
> like it would work. I'll give it try next time ther is a zoom
> meeting. 
>
If you go into settings you should be able to see if zoom is connecting
to your webcam (see yourself), speakers (test sound) and microphone
(volume meter).

-- 
Marjorie

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Re: [DNG] Zoom?

2020-08-09 Thread Marjorie Roome via Dng
On Wed, 2020-08-05 at 15:39 -0400, Haines Brown wrote:
> 
> I've installed the .deb file on my bewowulf 3 deskotop. It seems
> like it would work. I'll give it try next time ther is a zoom
> meeting. 
> 
> Incidenttally is there a public site that one can use to test zoom?
> 
> I gave up trying to install zoom in on an old ASCII machine 
> because all the dependencies. 
> 
I have it working on my (also very old!) Beowulf desktop.

If you boot it up **and you have created a free account** you should be
able to check that your webcam is working (just choose 'New Meeting').

You could then join a meeting with yourself using another device
(phone/tablet/another computer) to check out the two-way comms and the
microphone and headphones/speaker.

--
Marjorie









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Re: [DNG] How to mount NTFS

2020-08-09 Thread Hendrik Boom
On Sun, Aug 09, 2020 at 12:02:37PM -0400, Haines Brown wrote:
> On Sat, Aug 08, 2020 at 12:11:46AM +0200, Harald Arnesen via Dng wrote:
> > Haines Brown [07.08.2020 18:19]:
> > 
> > > Yes, for sure. If you are right about the speed difference between 
> > > NTFS and ext4, then is there another FS that can be accessed by a 
> > > Windows machine that is not much slower than ext4?
> > 
> > fat32. Or if you run a recent kernel on your Linux machine (Devuan 5.4
> > is ok), then exfat.
> > -- 
> > Hilsen Harald
> 
> Hilsen, going to fat32 might be my bset bet if its speed is more like 
> ext4 than ntfs. Is it the consensus that this is the case?

Isn't there a limit on the number of data blocks you can have 
on a FAT volume?
Meaning that for large volumes you end up with absurdly large blocks.   
And because you can't pack multiple files into a data block, this limits
the number of files you can have.

-- hendrik
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Re: [DNG] How to mount NTFS

2020-08-09 Thread g4sra via Dng
On 09/08/2020 16:55, Haines Brown wrote:
> On Sat, Aug 08, 2020 at 02:53:13PM +0100, g4sra via Dng wrote:

>> 3) abort if the mount fails
>> [ $? -eq 0 ] || {echo "Mount Failed!"; exit 1;}
> 
> I put this line into my backup script and only got a syntax error. 

My bad, changed from '#!/bin/bash' syntax to '#!/bin/sh'

# this must follow immediately after the mount command
if [ $? -ne 0 ]; then
  echo "Mount Failed!"
  exit 1
fi
>>
>> You are backing up files that have not changed since the last backup.
>> Do you really need all of that kerfuffle ?
> 
> The only price paid for the "kerfuffle" is the expense of a large 
> backup disk and the extra time that a backup takes in the backgroundñ. 
> In the past (back in my OS/2 days) I did incremental backups, but 
> since then like easy access to files that have not changed. Of course 
> the majority of people are not inclinded to see thigs this way.
> 

Easy access to files is exactly why I use 'rsync', no need to go down the 
painful
'restore master backup' followed by 'restore all further incremental backups'.
Plus it only copies as required and optionally backs up the backup.
So you get protection against 'User' error as well as device failure.
Trust me on this, read the 'rsync' manual.


As an aside, that coding style looks like late 60's to me. Nothing wrong with 
that,
just not common to see cpio used other than behind the scenes nowadays 
(initramfs).
I wonder how many brain cells are 'out there' that still use 'cpio' 'tar' and
'/etc/rmt' or know how to low level format an ST506 MFM HDD.
I am living proof dinosaurs are not extinct!
Anybody with a computer museum wanna give me a job ? 
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Re: [DNG] How to mount NTFS

2020-08-09 Thread Haines Brown
On Sat, Aug 08, 2020 at 12:11:46AM +0200, Harald Arnesen via Dng wrote:
> Haines Brown [07.08.2020 18:19]:
> 
> > Yes, for sure. If you are right about the speed difference between 
> > NTFS and ext4, then is there another FS that can be accessed by a 
> > Windows machine that is not much slower than ext4?
> 
> fat32. Or if you run a recent kernel on your Linux machine (Devuan 5.4
> is ok), then exfat.
> -- 
> Hilsen Harald

Hilsen, going to fat32 might be my bset bet if its speed is more like 
ext4 than ntfs. Is it the consensus that this is the case?

-- 
Haines Brown  
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Re: [DNG] How to mount NTFS

2020-08-09 Thread Haines Brown
On Sat, Aug 08, 2020 at 02:53:13PM +0100, g4sra via Dng wrote:
> On 07/08/2020 21:01, Haines Brown wrote:
> > On Fri, Aug 07, 2020 at 06:34:04PM +0100, g4sra wrote:
> > 
> >> Post your backup script for others to look over.
> > 
> > 
> > #!/bin/bash
> > a="="
> > b="Start: "
> > c=$(date)
> > mount /mnt/backup &
> 
> 1) Don't do this in the background, script execution will proceed straight 
> into the 'find' command below before the mount is ready.

Indeed, I think that has happened upon occassion (backup to mount 
point rather than to backup drive). 
 
> 2) Ensure you are mounting using 'ntfs-3g' or you will get a large 
> performance hit and unsafe writes (last time I checked the Docs).
> E.g. /etc/fstab
>/dev/XXX /mnt/backup ntfs-3g defaults 0 0
> Or in the script
>   'ntfs-3g /dev/XXX /mnt/backup

I changed from ntfs to ftfs-3g in fstab, but didn't see any signficant 
gain in back up speed. However the script  no longer hangs if if finds 
the drive already mounted. It complains but proceeds with the backup. 

> 
> 3) abort if the mount fails
> [ $? -eq 0 ] || {echo "Mount Failed!"; exit 1;}

I put this line into my backup script and only got a syntax error. 

> > find /mnt/backup/20* -maxdepth 0 -type d | sort -n | head -n 1 | xargs rm 
> > -rfv
> > sleep 3s
> > dirName=`date +%Y.%m.%d`
> > mkdir /mnt/backup/"$dirName"
> > find / -print | egrep 
> > "^/mnt^/var^/mail|^/home|^/etc|^/opt|^/storage|^/info|^/usr/local" | cpio 
> > -pdmuv /mnt/backup/"$dirName" 2>&1 | cat -vT 
> > d="End:"
> > e=$(date +%H:%M:%S)
> > f="Disk used: "
> > g=`df /mnt/backup | tail -n 1 | awk '{print $5}'`
> > printf "$a \n $b $c \n $d $e \n $f %s\n" "$g" >> /home/haines/.backup.log
> 
> You are backing up files that have not changed since the last backup.
> Do you really need all of that kerfuffle ?

The only price paid for the "kerfuffle" is the expense of a large 
backup disk and the extra time that a backup takes in the backgroundñ. 
In the past (back in my OS/2 days) I did incremental backups, but 
since then like easy access to files that have not changed. Of course 
the majority of people are not inclinded to see thigs this way.

-- 
Haines Brown  
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Re: [DNG] How to mount NTFS

2020-08-09 Thread Haines Brown
On Fri, Aug 07, 2020 at 04:17:06PM -0400, Curtis Maurand via Dng wrote:
> I just mounted up an NTFS mount on my Ascii desktop.  It loaded up fairly
> quickly.  Any other operation such as opening a folder with a lot of entries
> took a very long time.  This is on a Seagate Baracuda 1TB plugged into a
> generic drive dock and connected by USB 3.0.
> 
> I would say that the NTFS driver is not a speedy thing.  You might try the
> noatime option and see if that speeds things up.
> 
> --Curtis

Unfortunately, noatime in fstab did nothing for me. It may have cut 
time from 10 to 8 hours, but not sure.

-- 
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Re: [DNG] Can't install Gwenview on Devuan Beowulf with XFCE

2020-08-09 Thread aitor_czr

Hi Emiliano,

On 7/8/20 3:04, Ludovic Bellière wrote:

Thus, you'll have to switch from consolekit to
elogind if you wish to use anything KDE.

If you don't want to mix so many Qt dependecies with Gtk stuff,
you can use the images of gnuinoslxqt, built a couple of days ago
including gwenview:

https://www.gnuinos.org/Beowulf/

On the other hand, there are also other alternatives developedin Gtk
like gpicview and mirage,but i don't if they'll cover your needs.

Cheers,

Aitor.


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Re: [DNG] Recreational Software, was Re: history

2020-08-09 Thread Patrick Erdmann
On 09.08.20 02:31, terryc wrote:
> On Sat, 08 Aug 2020 00:33:00 -0500
> John Morris  wrote:
> 
> Snipping the Pol, Para and not mentioning Cap.
> 
>> Or like people who still run Windows after
>> decades of failure and breathtaking security flaws, but they just know
>> the next release is going to be stable and secure.
> 
> It isn't just Microsoft, but the hardware manufacturers as well. First
> you have to wait for them to correct 'bugs', then their culling
> of support for 'legacy' hardware and software, which is swift and
> deadly.
> 
> I only maintain a boxen running MS windows for the 'Recreational
> Software', aka Games.
> 
> Unfortunately, despite my stance of buying a copy of every game
> that interested me and  ran on Linux, the offerings have dried
> up*. Even the ability to run those games has disappeared.
> 
> While  Linux has a lot of basic card and simple board games, offerings
> are missing in a lot of types.
> 
> So, I'm left with running MS Windows games or and the intermittent
> suitability of  Wine, PlayOnLinux, Codeweavers, Qemu etc.
> 
> So if anyone wants to share their secrets to being able to run MS
> Win based games on Linux, I'm interested.
> 

There are a lot of Linux (compatible) Games on GOG or Steam.

> 
> I do know that the DOS game Warlords works well in Dosbox, but then
> various people have written a Linux version called LordsAWar. IME the
> dos version is a bit hard to play on a dual screen system as it sits
> firmly in the middle.
> 
> * I think Minecraft was the last to offer a Linux version,but there is
>   also the Linux based Minetest as a development base.
> 
> 
> 
> 
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