ant to keep the snapshot of
the old machine separate.
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t way you could do a complete restore by extracting
that image file to a USB, booting from it, and then using rsync or tar
restore methods to put everything else back.
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t),
CentOS was the platform with both stability and up to date packages.
Now, I believe its direct replacement would be Rocky Linux.
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you have another location with
reasonable connectivity it is also a reasonable thing to run another
backuppc instance over a vpn or (with v4) rsync a copy of the main
archive.
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copies of a host intended to be on removable
media if you want offsite copies so they don't share space like normal
backups. If you aren't moving copies elsewhere you may not need the
archive function at all, and if you do you would probably w
ome things use file creation/linking for atomic
actions which can cause some visible clutter.
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caused a similar issue, so that might be unrelated. Did that system
have the same fast hardware? It would be interesting if there is some
operation that is supposed to be atomic but in fact is just slow
enough that multiple instances usually don't complete concurrently.
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ed to fix anyway. If you are going to mention
every possible obscure problem, I once (long ago) had a machine where
the RAM had a stuck bit making everything it wrote to disk unreliable
including the mirroring process. But I think modern hardware makes
that unlikely.
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ad most of the
parts necessary to get a bootable system image with its up to date
drivers and configuration into a file that backuppc could pick up and
some minor tweaks could make it restore itself from backuppc instead
of a tar image or the other options it already has.
On Thu, Aug 22, 2024 at 1:57 AM Ghislain Adnet wrote:
>
> thanks Les,
>
> i must say that i never changed the rsync options so i will have a deep look
> at it, the recommanded settings for v4 and what i use that is quite old i
> admint.
>
>
l chances of
recovery from either a drive or controller issue. And if you have
multiple locations with good connectivity, run another backuppc
instance in a different location. The price is right for the software.
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test, but I think adding -o
ServerAliveInterval=60 after $sshPath in $Conf{RsyncClientCmd} should
work. Is there some sort of error listed in your Xferlog for the
failed backups? Another somewhat remote possibility is that you have
some sort of file corruption on the clients causing the remote
server are pinging
> - first step of backup taakes place (calculating size and files list)
> - then timeout.
>
If the failing hosts are behind a stateful firewall or NAT gateway the
connection may be timing out since rsync can have long pauses.
Enabling keepalives on the ssh connection might fix
eds to run as root to access most files and even then Selinux can
prevent access. Try disabling Selinux to see if that allows access.
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you understand the difference between the rsync and
rsyncd methods?Rsyncd expects a standalone rsync daemon listening
on the client and backs up 'shares' in the rsyncd.conf setup. The
rsync method connects over ssh to the client and either needs to
connect as root on the client or ha
able name).
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Proje
e acceptable key pairs for sshd in
CS-9. I found this article saying you either have to configure the
crypto policy to accept SHA1 or generate new key pairs with an
acceptable format.
https://serverfault.com/questions/1095898/how-can-i-use-a-legacy-ssh-rsa-key-on-centos-9
7;*'. Otherwise it expands to the list
of files in your current directory before the command sees it.
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track. I'm retired and a little fuzzy on this myself.Also,
is the drive mounted as /mnt or something under /mnt? I'd cd into
the top of that mount point to run the command instead of using -C.
Also tar needs a '-' after the
tput to an appropriate tar restore command. Note that the extract
will happen in your current directory unless you include a -C path
option, and ownership is going to be set according to the numeric user
id on the original file which may not match when on a different
machine.
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tar image file instead you could use the web
interface to download it on some other computer with space.
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al file. Send it where you have space - or test again restoring
only a small directory.
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On Thu, Feb 8, 2024 at 2:46 PM daggs via BackupPC-users
wrote:
>
> any ideas? maybe to use the cli interface?
>
If normal permissions and mount status are OK, the next thing that
could be preventing writing is selinux. Is it enabled/enforcing?
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/backuppc/pc/localhost'
will tell you.
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expert on
that myself but you can probably find what has previously been posted
to this list if you search.
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of clients. I was following
> this guide but I get this error in the XferLOG.bad.z file:
>
You are supposed to use the rsyncd backup method in backuppc with that
setup, not rsync. The difference is that rsyncd expects to connect
directly with a listening rsync daemon, not start one with ss
luttered them up so much with extra utilities etc. that I take the
opportunity to start from scratch and just move the documents I know I
need. Having a backup of the old machine helps with that since I know
I can retrieve anything I missed later.
S, that complete
read will be over a network before it can decide how to reduce network
use sending to the rsync partner.
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On Thu, Aug 10, 2023 at 9:52 AM G.W. Haywood via BackupPC-users
wrote:
>
>> > ... bootable image ... integrate that into backuppc ...
>
> My head hurts. :)
>
Saving headaches would be the point... If you've ever had to
re-create a one-off custom filesystem layout and get enough stuff
installed t
reinstall script would pull the backup from backuppc. But there is a
little too much black magic dealing with differences in Linux versions
for me to trust that it would work if I tried to change it.
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in a production system
you should really have a formal version control system and deployment
process to fix that sort of thing.
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List:
nts frequently
> have duplicated files scattered around. I used BackupPC for website backups;
> my chain length was approximately equal to the number of WordPress sites I
> was hosting.
>
Identical files are not collisions to backuppc - they are de-duplicated.
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imes? And if the admin gets the email that it hasn't
been backed up, he can call the guy up and remind him...
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ly the right idea but
also failing and continuing too quickly. 'fdisk -l' might be better
but needs to run as root, or maybe just adding ";sleep 2' after your
ls command would work.
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them before finding they are
duplicates and converting to hardlinks and only skips matches from a
previous backup of the same host. Maybe it is calculating sizes from
the transfers.
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Ba
it wasn't. What's
> involved in creating it post-hoc?
>
Is there some reason you don't use the packaged version for your linux
distribution?
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umentation would be a helpful thing to do -- it was
> written for a purpose!
The log location is almost certain a distribution-packaging choice, so
along with recommending reading documentation you might also point out
that the source documentation may not match what is actually installed
sk operation now has to run the whole contents
of each file over the network.
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On Thu, Aug 4, 2022 at 11:36 AM backuppc--- via BackupPC-users
wrote:
>
>
> Right, I guess I should have mentioned that I don't trust that old HDD
> anymore. Plus keeping backups of two old clients that only exist in BackupPC
> has been a bad idea because if my backups get corrupted or deleted,
ks with the old drive mounted?
Then on the odd chance that you need something from it, just fire up
that VM again.
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at least with the
rsync back then and slower CPUs. It could be that rsync tried to
write them all at the other end too.
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y
not be large but most tools to copy it will act as though the empty
parts were filled with nulls. Rsync might handle them these days but
may still take the time to send the stream of nulls. But in any case
they are rarely used on Windows.
--
be to use windows VSS snapshots. You can search
the mail list for other discussions but there is a link here to a tool
to do that.
https://sourceforge.net/p/backuppc/mailman/message/37189039/
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d miss
new/changed/moved files in an incremental but get them in a full.
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e:
https://kifarunix.com/install-backuppc-on-debian-11/
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ting the backuppc pool on NFS.
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escue-data-recovery-services.product.100458004.html
I'm not even sure you have to be a member to order it online. I've
generally had better luck with Seagate than WD but I think they are
mostly the same these days.
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proach for most people will be
to install the packages built for your linux distribution so it will
stay updated with the rest of the system along with its dependencies.
And then the final configuration will depend somewhat on the package
and distribution defaults as well as your local clients.
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u mentioned 'which' system you
are talking about. I'd guess it was some linux distribution, but
their packaging and updates work differently.
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expectations.
I think I recall something about the third rsync backup getting a
speedup too, where the block checkums are saved on the 2nd run after a
file has been copied. Not sure if that still applies to v4.
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you only
include specific directories you may miss later additions or changes
on the host.
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et using netbios
names it would be the client's own idea of its name that matters.
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lvable name or IP address that will work on your network to reach
it. It can also be used if you want to split a single large host into
separate runs with subsets of directories. You can make it appear
like separate hosts for scheduling while still pointing to the same
actual target.
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NS or puts the IP in ClientAliasName he still needs to rename
the existing backups made with the IP as the hostname. Does that take
more than just changing the host and renaming the directory under pc/
to match?
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f
tiny files that could feasibly be archived as a tar or zip file
instead of stored separately?
Also, rsync versions newer than 3.x are supposed to handle it better.
Is your server side extremely old?
https://rsync.samba.org/FAQ.html#4
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ry configurable and will
notify you about all kinds of things. I used it very extensively, but
again it was several years ago - I'm retired now.
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em into
subversion or cvs (perhaps editing out any timestamps inserted by the
retrieval process so only 'real' changes will show as a new commit
with differences) and having a viewvc wrapper to make the changes easy
to spot.
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re sensitive to out-of-spec
cables or something and auto-switch down.
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On Wed, Feb 10, 2021 at 1:58 PM wrote:
>
> 4. Further, along that line, while sudoer has been well-tested,
About that
https://www.helpnetsecurity.com/2021/01/27/cve-2021-3156/
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fully! – be the
> solution.
Isn't rrsync just a perl wrapper to start rsync but ensure it is only
accessing a permitted subdirectory? If so it should be a matter of
tweaking the command to start it to be compatible.
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_
I don't think it was very
well publicized. If you connect 2 drives configured as time machine
backups and keep them both connected it will automatically alternate
between them. Since it runs every hour, I think this is a more robust
scheme than using raid for redundancy with the things that
1/13/zfs_linux/
Torvalds declared: "Don't use ZFS. It's that simple."
So, there's always freebsd...
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ad of FUSE or questionable legality.
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#x27;ve always found its tools
to be good at repairs (had trouble with XFS long ago, back when it's
speed of creating/deleting files made it seem to be worth using).
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asional
> backuppc gremlin of disappearing files in that I can find the cpool
> file and revert it from past snapshots.
Are you sure that the disappearing files aren't a quirk of btrfs in
the first place?
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_
o it doesn't
matter much whether the new part was on the top or bottom. And when
you reply, if you expand the old part it shows as >prefixed if you
want to interleave your reply or trim the quoted part.
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ntent to ellipses that you can ignore or
expand that it doesn't really matter whether the new part is at the
top or bottom. But yes if you need to reply to different parts it
should be interwoven.
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o a whole lot of reading before it finds something that
doesn't match what the server already has.
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rpret it.
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Projec
On Mon, Jan 11, 2021 at 10:49 AM Jan Stransky
wrote:
>
> Sorry, I did not read full thread... But I use a Docker image, that is
> very easy at home.
Do you lose any efficiency between the docker image and the mounted storage?
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going to be too complicated for most casual users to
tackle on their own.
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lly need to know anything to build
your own package if that is ever necessary.
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but there are others and you can find some
YouTube demonstrations/reviews of them.
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ill be that helpful. One thing to
consider, though, is that the tiny CPU fans that some of the kits
provide are remarkably noisy. I ended up swapping with a fanless
Flirc case but you might want to check some reviews or youtube
demonstrations before picking anything.
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e interferes with wifi -
but you'd want to use ethernet for backups anyway.
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e the place to start.
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up using BackupPC? Or am I
> missing something?
VSS gives you a frozen snapshot that you can copy without contention
of worrying about changes. It doesn't protect against future
corruption or other problems with that disk or filesystem.
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e you'll probably need to
interact with the database servers with commands backuppc can send to
get dumps that won't change during the copy.
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d issues depending on what you have connected and
your cabling.
-
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> The system got itself into this state from a standard yum update.
That's why you want to stick to all packaged modules whenever
possible. Over time, dependencies can change and the packaged
versions will update together. You can probably update a cpan module
to the correct version manually bu
is that you lose the
hardlinks into the pool/cpool directory that next backup run needs to
be able to match files and make new hardlinks. So you'll get a 2nd
copy of each file in your archive until the copied backups expire and
are deleted.
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long as
it is still sending files.
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out of RAM or slowing down
from swapping. For a brute-force approach to see what is happening
you could strace the rsync process on the sending side. You could at
least tell if it is still opening/reading files.
), so I expect it to take longer.
>
> This time, I'm seeing higher IO-wait numbers:
Moving the disk head around is almost always the slowest operation and
on the first full it has to traverse every file. And backups tend to
not fit the normal OS caching mechanisms that try to hide that
ackupPC_tarCreate from the old
server.
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r ?
Whether it is practical to rsync the whole archive directory or not
will depend on the overall size and to a certain extent to the amount
of RAM in the server. Expect it to take several days anyway.You
can use dd to copy the entire drive or partition to a similarly-sized
device.
--
UID's if you
have both drives connected when you reboot, though.
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wait
> for hours.
The thing most likely to fix itself over time would be name resolution
for a DHCP client. Do you know how the name is registered after the
machine is connected? And then how it propagates to your DNS service?
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l
blackout time ends. If everything has the same schedule, these
will continue to run first as long as everything completes in order.
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server you may have
configured options that are incompatible with the backuppc client use.
But that still doesn't explain a difference between full and
incremental runs.
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C
On Thu, Nov 16, 2017 at 12:08 PM, B wrote:
> On Thu, 16 Nov 2017 10:45:40 -0600
> Les Mikesell wrote:
>
>> Yes, but things have to be very, very screwed up to get to the point
>> where the user can't fix it with a tar download through a browser
>> followed b
On Thu, Nov 16, 2017 at 10:37 AM, B wrote:
> On Thu, 16 Nov 2017 10:21:49 -0600
> Les Mikesell wrote:
>
>> damaging) direct restore. But the admin should know what to tweak if
>> he does need that massive restore.
>
> Yup, and the problem is: in this configu
iles or directories but could not do a massive (and potentially
damaging) direct restore. But the admin should know what to tweak if
he does need that massive restore.
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Check
status. Scripts normally return the exit value
from the last command executed. If that is not following conventions
you can add a line 'exit 0' at the end to make backuppc consider it
successful regardless.
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DC/SDC boxes themselves or some other systems that
would have to be kept in sync?
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to DNS? Also, is your backuppc DNS server your PDC
or does it have to keep DNS updated to some other server for your
domain?
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, each with different shares, using
ClientNameAlias to point it to the same target to make it possible to
split the fulls into different days so each completes in the available
time.
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ght be a bad idea aside from eliminating the check for corruption or
changes in content that don't update the directory/inode.
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in today's backup too, you aren't going to take more
space, or even much more time by including it again. You'll only save
space if you are expiring the backups earlier than you remove the
files on the source system.
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tuation is unusual in that you are competing with the
ZFS compression activity.
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