Re: Libvirt dnsmasq oddity

[john doe]

On 1/10/23 19:10, Charles Curley wrote:

I seem to have hit an oddity in how dnsmasq operates for libvirt.

I have two host machines each with several guests. One of those is also
the local samba server. Guests on the non-samba server can resolve the
samba server's host name correctly, so far without fail.

Guests on the samba server sometimes get the correct IP address for the
samba server, and other times get an IP address for the samba server of
127.0.1.1. That is the IP address provided in the host's /etc/hosts.

I have a workaround of hard coding the IP address in the fstab entry,
but that's tacky. Is there a better way to handle this?



To me, it looks like it is  more a libvirt mailing list question  than a
Debian -user mailing list question! ;^)

--
John Doe

Re: Recommended SSDs and 4-bay internal dock

[Charles Curley]

On Wed, 11 Jan 2023 18:20:05 +0100
Linux-Fan  wrote:

> IBM says that for enterprise drives (typically higher quality than
> consumer- grade drives) only three months of data retention are
> guaranteed at 40°C. And: This article is from 2021, too...

Well, it turns out I was in a good position to do an experiment. I had
a laptop die a year ago. The last file date in the user home directory
is Dec 24  2021.

I just did an SSD-ectomy and plugged it in to my desktop. The three
ext4 partitions all fscked well, and mounted correctly. I also ran a
script that checks files against checksum files. It reported no errors.
Two of the three partitions are LUKS encrypted.

ntfsfix reported one partition with a bad alternate boot sector, and
one clean.

gsmartcontrol reports the drive to be healthy. It passed an extended
self-test.

The drive is a Samsung SSD 840 EVO 250GB.

One drive does not a thorough study make, but I wouldn't be too worried.

-- 
Does anybody read signatures any more?

https://charlescurley.com
https://charlescurley.com/blog/


pgpanjCUlYVua.pgp
Description: OpenPGP digital signature

Re: Installation of Salome 9.9.0

[Gary L. Roach]

Sorry that I didn't catch that one. I just ripped the whole thing out 
and am going to go to Code_Aster and try to install Salome-Meca. This is 
probably what I should have done in the first place. Sorry if wasted 
your time. Thanks for the help.


Gary R.

On 1/14/23 16:46, Greg Wooledge wrote:

On Sat, Jan 14, 2023 at 03:54:22PM -0800, Gary L. Roach wrote:

PS I had tried ./salome and got the following error:

ERROR:salomeContext:Unexpected error:
Traceback (most recent call last):
  File
"/home/gary/Salome/SALOME-9.9.0-native-DB10-SRC/BINARIES-DB10/SALOME/bin/
salome/salomeContext.py", line 281, in _startSalome
    res = getattr(self, command)(options) # run appropriate method

That looks wrong.  In your prior message you said you're on Debian 11.

On the download page  there
are links for Debian 11, Debian 10 and Debian 9.  The Debian 11 link
has "DB11" in it; the Debian 10 link has "DB10" and the Debian 9 link
has "DB09".

Are you sure you downloaded the correct one for your version of Debian?

Again, this is the part where telling us the URL you downloaded, and
showing us the downloaded file with ls -l, would be useful.

Re: Installation of Salome 9.9.0

[Greg Wooledge]

On Sat, Jan 14, 2023 at 03:54:22PM -0800, Gary L. Roach wrote:
> PS I had tried ./salome and got the following error:
> 
> ERROR:salomeContext:Unexpected error:
> Traceback (most recent call last):
>  File
> "/home/gary/Salome/SALOME-9.9.0-native-DB10-SRC/BINARIES-DB10/SALOME/bin/
> salome/salomeContext.py", line 281, in _startSalome
>    res = getattr(self, command)(options) # run appropriate method

That looks wrong.  In your prior message you said you're on Debian 11.

On the download page  there
are links for Debian 11, Debian 10 and Debian 9.  The Debian 11 link
has "DB11" in it; the Debian 10 link has "DB10" and the Debian 9 link
has "DB09".  

Are you sure you downloaded the correct one for your version of Debian?

Again, this is the part where telling us the URL you downloaded, and
showing us the downloaded file with ls -l, would be useful.

Re: Installation of Salome 9.9.0

[jeremy ardley]

On 15/1/23 07:46, Gary L. Roach wrote:


The lack of information is because I never got off the ground with 
this. I did finally figured out how to get ./sat to work and 
completely cleaned up all of the missing pieces. But then I am a loss 
of what to do next. My top Salome directory looks like this:


drwxr-xr-x  2 gary gary    4096 Jan 11 12:41 ARCHIVES
drwxr-xr-x 73 gary gary    4096 Jan 11 12:41 BINARIES-DB10
-rwxr-xr-x  1 gary gary   55590 May 31  2022 binsalome
-rwxr-xr-x  1 gary gary   44642 May 31  2022 env_launch.sh
drwxr-xr-x 73 gary gary    4096 Jan 11 16:31 INSTALL
-rwxr-xr-x  1 gary gary 866 May 31  2022 install_bin.sh
drwxrwxrwx  3 root root    4096 Jan 14 15:07 LOGS
-rw-r--r--  1 gary gary 2765865 May 31  2022 logs.tgz
-rwxr-xr-x  1 gary gary   56232 May 31  2022 mesa_salome
drwxr-xr-x  4 gary gary    4096 May 31  2022 PROJECT
-rw-r--r--  1 gary gary    5242 May 31  2022 README
-rwxr-xr-x  1 gary gary   55587 May 31  2022 salome
-rw-r--r--  1 gary gary  711820 May 30  2022 
SALOME_9_9_0_Release_Notes.pdf

drwxr-xr-x  9 gary gary    4096 May 31  2022 sat
drwxr-xr-x  3 gary gary    4096 Jan 11 12:40 SOURCES

I have no idea what to do with this. I'm using a standard debian 11 
installation with KDE desk top if that helps.


Gary R.




I would experiment first with install_bin.sh and then with env_launch.sh

Jeremy

Re: Installation of Salome 9.9.0

[Greg Wooledge]

On Sat, Jan 14, 2023 at 03:46:00PM -0800, Gary L. Roach wrote:
> The lack of information is because I never got off the ground with this.

You can still tell us basic things like "I downloaded the file from this
URL", and use ls -l to show us the downloaded filename sitting somewhere
in your $HOME directory.

> I
> did finally figured out how to get ./sat to work and completely cleaned up
> all of the missing pieces. But then I am a loss of what to do next. My top
> Salome directory looks like this:
> 
> drwxr-xr-x  2 gary gary    4096 Jan 11 12:41 ARCHIVES
> drwxr-xr-x 73 gary gary    4096 Jan 11 12:41 BINARIES-DB10
> -rwxr-xr-x  1 gary gary   55590 May 31  2022 binsalome
> -rwxr-xr-x  1 gary gary   44642 May 31  2022 env_launch.sh
> drwxr-xr-x 73 gary gary    4096 Jan 11 16:31 INSTALL
> -rwxr-xr-x  1 gary gary 866 May 31  2022 install_bin.sh
> drwxrwxrwx  3 root root    4096 Jan 14 15:07 LOGS
> -rw-r--r--  1 gary gary 2765865 May 31  2022 logs.tgz
> -rwxr-xr-x  1 gary gary   56232 May 31  2022 mesa_salome
> drwxr-xr-x  4 gary gary    4096 May 31  2022 PROJECT
> -rw-r--r--  1 gary gary    5242 May 31  2022 README
> -rwxr-xr-x  1 gary gary   55587 May 31  2022 salome
> -rw-r--r--  1 gary gary  711820 May 30  2022 SALOME_9_9_0_Release_Notes.pdf
> drwxr-xr-x  9 gary gary    4096 May 31  2022 sat
> drwxr-xr-x  3 gary gary    4096 Jan 11 12:40 SOURCES

So "sat" is a directory?  Yikes.  That directly contradicts the
information from the web site's FAQ.  Unless of course you downloaded
a different file than the one it was documenting.

HOW did you get it to work, then, if it isn't a program that can be run?

> I have no idea what to do with this.

Read the files named README and INSTALL.  Oh wait, the latter is a
directory instead of a file.  If README doesn't answer your questions,
look inside the INSTALL directory, and try to find something inside it
that you can read.

If those still don't answer your questions, find a mailing list that
knows this program.  Or a web forum, or whatever it is they use for
support.

> I'm using a standard debian 11
> installation with KDE desk top if that helps.

Yes, that information will be relevant if you end up asking a Salome
support entity for help.

Re: Installation of Salome 9.9.0

[Gary L. Roach]

PS I had tried ./salome and got the following error:

ERROR:salomeContext:Unexpected error:
Traceback (most recent call last):
 File 
"/home/gary/Salome/SALOME-9.9.0-native-DB10-SRC/BINARIES-DB10/SALOME/bin/

salome/salomeContext.py", line 281, in _startSalome
   res = getattr(self, command)(options) # run appropriate method
 File 
"/home/gary/Salome/SALOME-9.9.0-native-DB10-SRC/BINARIES-DB10/SALOME/bin/

salome/salomeContext.py", line 368, in _sessionless
   import setenv
 File 
"/home/gary/Salome/SALOME-9.9.0-native-DB10-SRC/BINARIES-DB10/KERNEL/bin/

salome/setenv.py", line 26, in 
   import orbmodule
 File 
"/home/gary/Salome/SALOME-9.9.0-native-DB10-SRC/BINARIES-DB10/KERNEL/bin/

salome/orbmodule.py", line 31, in 
   from omniORB import CORBA
 File 
"/home/gary/Salome/SALOME-9.9.0-native-DB10-SRC/BINARIES-DB10/omniORB/lib

/python3.7/site-packages/omniORB/__init__.py", line 44, in 
   import _omnipy
ModuleNotFoundError: No module named '_omnipy'

I guess I need to chase down the origin of the _omnipy module.

Gary R

On 1/14/23 14:04, Greg Wooledge wrote:

On Sat, Jan 14, 2023 at 09:12:06PM +,debian-u...@howorth.org.uk  wrote:

There is:

https://docs.salome-platform.org/latest/dev/cmake/html/index.html

Which I suppose is what Gary was referring to?

Hmm... maybe.  Of course that's on a separate hostname.

With a bit more digging, I also found, from the main page of the
Salome project:

Resources -> FAQ ->https://www.salome-platform.org/?page_id=428

This has the following instructions:


4. How to install SALOME on linux ?
First, download SALOME for your specific operating system version. If
your OS is not supported, you can use the “universal version”.

Extract the archive.

Then, check that the dependancies are installed on your OS:

./sat config SALOME-9.8.0 --check_system
Check that your graphic card is well configured for 3D rendering.

Then launch SALOME with:

./salome
More information is  available in the README file.


You may need Javascript enabled to read these instructions.  The whole
web page is stupidly fancy, with moving crap everywhere, instead of just
presenting information sanely.

Do note that the current release is apparently 9.9.0 rather than 9.8.0,
so I imagine that ./sat command might need a small adjustment.

Re: Installation of Salome 9.9.0

[Gary L. Roach]

The lack of information is because I never got off the ground with this. 
I did finally figured out how to get ./sat to work and completely 
cleaned up all of the missing pieces. But then I am a loss of what to do 
next. My top Salome directory looks like this:


drwxr-xr-x  2 gary gary    4096 Jan 11 12:41 ARCHIVES
drwxr-xr-x 73 gary gary    4096 Jan 11 12:41 BINARIES-DB10
-rwxr-xr-x  1 gary gary   55590 May 31  2022 binsalome
-rwxr-xr-x  1 gary gary   44642 May 31  2022 env_launch.sh
drwxr-xr-x 73 gary gary    4096 Jan 11 16:31 INSTALL
-rwxr-xr-x  1 gary gary 866 May 31  2022 install_bin.sh
drwxrwxrwx  3 root root    4096 Jan 14 15:07 LOGS
-rw-r--r--  1 gary gary 2765865 May 31  2022 logs.tgz
-rwxr-xr-x  1 gary gary   56232 May 31  2022 mesa_salome
drwxr-xr-x  4 gary gary    4096 May 31  2022 PROJECT
-rw-r--r--  1 gary gary    5242 May 31  2022 README
-rwxr-xr-x  1 gary gary   55587 May 31  2022 salome
-rw-r--r--  1 gary gary  711820 May 30  2022 SALOME_9_9_0_Release_Notes.pdf
drwxr-xr-x  9 gary gary    4096 May 31  2022 sat
drwxr-xr-x  3 gary gary    4096 Jan 11 12:40 SOURCES

I have no idea what to do with this. I'm using a standard debian 11 
installation with KDE desk top if that helps.


Gary R.


On 1/14/23 13:12, debian-u...@howorth.org.uk wrote:

On Sat, Jan 14, 2023 at 12:20:21PM -0800, Gary L. Roach wrote:

Hi all,

I have been trying to install Salome 9.90 from the tar.gz file.
When I unzip the file the contents look nothing like the
installation instructions that I have found on line. Does anyone
have experience with the Debian installation of this package. If
so, please help

Gary, it would be helpful if you gave references for all your
statements, rather than have Greg and me and whoever else guessing what
you may have or have not done. Especially more detail about what
problems you've found.


I assume you mean the thing found at
.

Good luck with this.  I can't find installation instructions anywhere
on this web site.  There's a 30-page PDF of "release notes", but guess
what's not in it.  That's right -- no installation instructions in it.

There are, however, 4 pages of prerequisites that this thing
apparently needs.

Sounds like a real party.

There is:

https://docs.salome-platform.org/latest/dev/cmake/html/index.html

Which I suppose is what Gary was referring to?

Seems like a potentially useful project. I'll be interested to see how
it goes.

Re: Periodic refresh (or rwrite?) of data on an SSD (was: Re: Recommended SSDs and 4-bay internal dock)

[Jeremy Nicoll]

On Sat, 14 Jan 2023, at 15:49, Dan Ritter wrote:

> Let's separate the problem into three cases:
>
> - I recently deleted some files, I want them back. (Same as "I
> recently changed some files, I want the old versions.")
>
> - I have lost a filesystem for some reason, I want it restored.
>
> - I need to have archival copies of some data which I probably
> will never access, but just in case...
>
>
> The deleted/changed files problem is best solved, if plausible,
> with a snapshotting filesystem like ZFS, with automatic
> snapshots and automatic deletion of sufficiently old snapshots.


Although this is a debian list, not all my data is on systems that 
support such FSes.  Eg on Windows ...  There, I keep all the data
where I want access to prior versions of files in Dropbox; I have
a year's worth of old versions of all those files.  (But finding the
right one to reinstate is clumsy.)

I also sometimes run a program that monitors selected filetypes
and filenames within a specific directory and every time one of 
the matching files changes makes a date & time-time suffixed
filename copy of that just-changed file.  So if I was editing file

   xyz.pqr

in a GUI appplication, every time I do a File->Save from within
it as well as the xyz.pqr filebeing written to disk, a new file is
created, named

   xyz (svd@20120716-190723).pqr

containing a copy of the just-saved file.

I first started using this when I was trying to reproduce, for the
programmer, some file-corrupting tendencies in his application
and wanted to make saved copies of the file after every change
I made to it in the GUI.  I kept detailed notes of exactly what I 
did corresponding to each "(svd@20120716-190723)" value.

The programmer wasn't appreciative.  He said "no other user
complains as much as you do", rather than saying "thank you 
very much for providing detailed steps to reproduce each of
these problems".  Bah!



> The restore-a-filesystem problem is best solved with a complete
> filesystem copy to a similarly sized disk. SSDs are nice and
> fast, but you may not actually need that speed if you don't have
> to do a restore very often. ZFS send or rsync are good tools
> here, or borg if you have special requirements.

It's not so much the speed that attracts me to SSDs as the lack of
moving parts and their resistance to shock.


> The archive problem is best solved with spinning disks, which
> are fast enough for most cases, much better priced per capacity,
> and have well-understood stability over long periods of
> unpowered time. 

Speed is not a colossal issue - backups can always run while I eat
or sleep or whatever.  Price is not that much of an issue either, as
I know the hard way that angst & the time cost spent recovering 
lost data rapidly outweigh the minor capital cost of more backup
devices.  

The long-term stability of spinning rust is certainly becoming a 
lot more important to me.  But I already plan to store future 
backups on both types of disk.



-- 
Jeremy Nicoll - my opinions are my own.

Re: Dependency omitted in the details of passwd package

[Charles Curley]

On Sat, 14 Jan 2023 23:23:14 +0200
Horia Marandoiu  wrote:

> Package: passwd (1:4.8.1-1) does not work without libpam-ldap , being
> a library which is not listed on the dependency section of the page
> dedicated to the package passwd

Interesting. I have passwd 1:4.8.1-1 installed on Bullseye, I do not
have libpam-ldap installed at all (nor any ldap tools that I know of),
and I have seen no problems with any passwd programs.

What *exactly* are you seeing that leads you to the conclusion that
passwd requires libpam-ldap? Please execute at the command line and
copy and paste the command prompt, the command, the results and the
next command prompt into your reply. Which release of Debian are you
running?

-- 
Does anybody read signatures any more?

https://charlescurley.com
https://charlescurley.com/blog/

Re: Installation of Salome 9.9.0

[Greg Wooledge]

On Sat, Jan 14, 2023 at 09:12:06PM +, debian-u...@howorth.org.uk wrote:
> There is: 
> 
> https://docs.salome-platform.org/latest/dev/cmake/html/index.html
> 
> Which I suppose is what Gary was referring to?

Hmm... maybe.  Of course that's on a separate hostname.

With a bit more digging, I also found, from the main page of the
Salome project:

Resources -> FAQ -> https://www.salome-platform.org/?page_id=428

This has the following instructions:


4. How to install SALOME on linux ?
First, download SALOME for your specific operating system version. If
your OS is not supported, you can use the “universal version”.

Extract the archive.

Then, check that the dependancies are installed on your OS:

./sat config SALOME-9.8.0 --check_system
Check that your graphic card is well configured for 3D rendering.

Then launch SALOME with:

./salome
More information is  available in the README file.


You may need Javascript enabled to read these instructions.  The whole
web page is stupidly fancy, with moving crap everywhere, instead of just
presenting information sanely.

Do note that the current release is apparently 9.9.0 rather than 9.8.0,
so I imagine that ./sat command might need a small adjustment.

Re: Dependency omitted in the details of passwd package

[Jeffrey Walton]

On Sat, Jan 14, 2023 at 4:39 PM Horia Marandoiu  wrote:
>
> Package: passwd (1:4.8.1-1) does not work without libpam-ldap , being a 
> library which is not listed on the dependency section of the page dedicated 
> to the package passwd

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1028917

Dependency omitted in the details of passwd package

[Horia Marandoiu]

Package: passwd (1:4.8.1-1) does not work without libpam-ldap , being a
library which is not listed on the dependency section of the page dedicated
to the package passwd

Re: Installation of Salome 9.9.0

[debian-user]

> On Sat, Jan 14, 2023 at 12:20:21PM -0800, Gary L. Roach wrote:
> > Hi all,
> > 
> > I have been trying to install Salome 9.90 from the tar.gz file.
> > When I unzip the file the contents look nothing like the
> > installation instructions that I have found on line. Does anyone
> > have experience with the Debian installation of this package. If
> > so, please help  

Gary, it would be helpful if you gave references for all your
statements, rather than have Greg and me and whoever else guessing what
you may have or have not done. Especially more detail about what
problems you've found.

> I assume you mean the thing found at
> .
> 
> Good luck with this.  I can't find installation instructions anywhere
> on this web site.  There's a 30-page PDF of "release notes", but guess
> what's not in it.  That's right -- no installation instructions in it.
> 
> There are, however, 4 pages of prerequisites that this thing
> apparently needs.
> 
> Sounds like a real party.

There is: 

https://docs.salome-platform.org/latest/dev/cmake/html/index.html

Which I suppose is what Gary was referring to?

Seems like a potentially useful project. I'll be interested to see how
it goes.

Re: Installation of Salome 9.9.0

[Greg Wooledge]

On Sat, Jan 14, 2023 at 12:20:21PM -0800, Gary L. Roach wrote:
> Hi all,
> 
> I have been trying to install Salome 9.90 from the tar.gz file. When I unzip
> the file the contents look nothing like the installation instructions that I
> have found on line. Does anyone have experience with the Debian installation
> of this package. If so, please help

I assume you mean the thing found at
.

Good luck with this.  I can't find installation instructions anywhere
on this web site.  There's a 30-page PDF of "release notes", but guess
what's not in it.  That's right -- no installation instructions in it.

There are, however, 4 pages of prerequisites that this thing apparently
needs.

Sounds like a real party.

Installation of Salome 9.9.0

[Gary L. Roach]

Hi all,

I have been trying to install Salome 9.90 from the tar.gz file. When I 
unzip the file the contents look nothing like the installation 
instructions that I have found on line. Does anyone have experience with 
the Debian installation of this package. If so, please help


Gary R.

Re: Periodic refresh (or rwrite?) of data on an SSD (was: Re: Recommended SSDs and 4-bay internal dock)

[Dan Ritter]

Jeremy Nicoll wrote: 
> On Fri, 13 Jan 2023, at 15:33, rhkra...@gmail.com wrote:
> 
> The whole issue makes me wonder if, say, I should plan on having several 
> SSDs for each set of backup data (I mean separately from the common-
> sense approach of having more than one copy of anything anyway).  Then
> every n weeks, delete the data from the least-recently written drive and
> copy a fresh copy (from the most recently written drive) onto that one, &
> verify that every file copied has the same hash as its original.  (I suspect
> I'd want to keep lists of file hashes anyway, as a way of detecting when 
> any backups start to go bad.)
> 
> I'm not sure that that was clear.  What I mean is that if I intended to keep
> a backup of a driveful of data, I might choose to have, say, this week's
> copy, last week's, and the week before.  So apart from the original disk
> I'd have 3 other backup drives.

Let's separate the problem into three cases:

- I recently deleted some files, I want them back. (Same as "I
recently changed some files, I want the old versions.")

- I have lost a filesystem for some reason, I want it restored.

- I need to have archival copies of some data which I probably
will never access, but just in case...


The deleted/changed files problem is best solved, if plausible,
with a snapshotting filesystem like ZFS, with automatic
snapshots and automatic deletion of sufficiently old snapshots.


The restore-a-filesystem problem is best solved with a complete
filesystem copy to a similarly sized disk. SSDs are nice and
fast, but you may not actually need that speed if you don't have
to do a restore very often. ZFS send or rsync are good tools
here, or borg if you have special requirements.


The archive problem is best solved with spinning disks, which
are fast enough for most cases, much better priced per capacity,
and have well-understood stability over long periods of
unpowered time. Grabbing a copy from your restore-a-filesystem
system every so often might be the way to go.

In any case, think about backing up filesystems rather than
disks. Sometimes they are the same, but not very often.

-dsr-

Re: Cannot get ssh access to the new Debian server on my local network

[Vincent Lefevre]

On 2023-01-13 15:01:48 -0600, David Wright wrote:
>   ssh -v -v -v

Or shorter: ssh -vvv

-- 
Vincent Lefèvre  - Web: 
100% accessible validated (X)HTML - Blog: 
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

Re: Periodic refresh (or rwrite?) of data on an SSD (was: Re: Recommended SSDs and 4-bay internal dock)

[Jeremy Nicoll]

On Fri, 13 Jan 2023, at 15:33, rhkra...@gmail.com wrote:

> I've read some of that article, or, I guess, really the abstract and the 
> section labeled "Content" on that page:
>
> https://www.ibm.com/support/pages/potential-ssd-data-loss-after-extended-shutdown

Is there a longer article?  I have the impression that the Abstract & Content 
on that
page is all there is.

There seems to me to be some ambiguity about the way they write about "40C" 
which - I presume - is ambient temperature.  Are they saying that these drives 
are
rated to be used in temperatures not exceeding 40 degrees C (ie that if the temp
is even higher the situation is likely (far?) worse than what's described here?

That is, should the sentence "The JEDEC spec for Enterprise SSD drives requires
that the drives retain data for a minimum of 3 months at 40C."

be read as 

"The JEDEC spec for Enterprise SSD drives requires that the drives retain data 
for a minimum of 3 months at /temperatures of up to but not exceeding/ 40C."

because this is also ambiguous

"This means that after 3 months of a system being powered off in an environment
that is at 40C or less, there is a potential of data loss ..."

Either you can read that as implying the "40C or less" is part of the cause of 
data
loss, or that it means

"that after 3 months of a system being powered off in an environment that is 
/working as designed/ at 40C or less, there is a potential of data loss"

that is, that it's the lack of power that's the cause, not the temperature.



>From a chilly UK standpoint, 40 degrees C seems very high.  I wonder if data 
retention is better or worse at - say - ambient temps of eg 15-20 degrees?


I wonder how much worse home-user SSDs are than these Enterprise-rated
ones.
 

The whole issue makes me wonder if, say, I should plan on having several 
SSDs for each set of backup data (I mean separately from the common-
sense approach of having more than one copy of anything anyway).  Then
every n weeks, delete the data from the least-recently written drive and
copy a fresh copy (from the most recently written drive) onto that one, &
verify that every file copied has the same hash as its original.  (I suspect
I'd want to keep lists of file hashes anyway, as a way of detecting when 
any backups start to go bad.)

I'm not sure that that was clear.  What I mean is that if I intended to keep
a backup of a driveful of data, I might choose to have, say, this week's
copy, last week's, and the week before.  So apart from the original disk
I'd have 3 other backup drives.

Then for each of those there'd be two other drives in use, so 9 in all...

-- 
Jeremy Nicoll - my opinions are my own.

Re: ARM32 (armhf) - Debian 11 - Bullseye - Image Location Please

[Andrew M.A. Cater]

On Sat, Jan 14, 2023 at 12:50:11AM +, Vishwanath Reddy Mannapuram wrote:
> Hi Team,
> 
> Could you help me to provide Debian 11 (Bullseye - armhf - image location 
> please).
> 
> I downloaded from 
> https://raspi.debian.net/tested/20230102_raspi_4_bullseye.img.xz  but it is a 
> 64 bit one, so I am looking for a 32 bit image.
> 
> Regards,
> Vishwa
> 
> 

>From having a quick look - I don't think we currently provide a 32 bit
image for the Raspberry Pi 4 - it's 64 bit capable.

The SD card images for armhf are designed for smaller single board computers.

I'd suggest that you have Gunnar Wolf / build your own images
following his instructions.

Raspberry Pi firmware for the Raspberry Pi series is derived ultimately
from the Raspberry Pi foundation. Their images for Raspberry Pi OS may
boot on either 32 bit or 64 bit - but their OS is not Debian.

Is there any particular reason why this must be armhf and 32 bit?
[Occasionally, 32 bit images on 64 bit hardware may behave slightly
differently - the Raspberry Pi 4 can run both and compile both
with no problems as far as I know.]

With every good wish as ever,

Andy Cater
> __
> 
> AVEVA Group plc is registered in England at High Cross, Madingley Road, 
> Cambridge, England CB3 0HB. Number 2937296.