Much thanx for the quick response!
This is what I called "reasonable looking filenames" as found in cpool's aa/aa:
-r--r--r-- 1 backuppc backuppc 65 2023-10-27 10:34
abaa09668efeb993980a19a1f83e52ad
-r--r--r-- 1 backuppc backuppc 1320 2023-10-27 10:09
abaab70385aa9ba127a02878dd50a649
And at pc/host/<backupnumber>, this is what I have:
drwxr-x--- 10 backuppc backuppc 4096 2018-01-01 01:03 f%2fhome
-rw-rw---- 1 backuppc backuppc 0 2018-01-05 01:00
attrib_89709371bfc1111d0ab13fb461401f85
drwxr-x--- 134 backuppc backuppc 4096 2018-01-05 01:00 f%2fetc
drwxr-x--- 11 backuppc backuppc 4096 2018-01-05 01:04 f%2froot
-rw-r----- 1 backuppc backuppc 561 2018-01-05 01:04 backupInfo
drwxr-x--- 2 backuppc backuppc 12288 2018-01-05 01:04 refCnt
As I don't want to overwrite any backups on this ancient disk all hosts have
been auto-disabled and they have no log files. The server's log file today
looked like this:
Contents of file /var/lib/backuppc/log/LOG, modified 2025-07-10 08:00:00
2025-07-10 01:00:01 Running 2 BackupPC_nightly jobs from 0..15 (out of
0..15)
2025-07-10 01:00:01 Running BackupPC_nightly -m -P 12 0 127 (pid=1251834)
2025-07-10 01:00:01 Running BackupPC_nightly -P 12 128 255 (pid=1251835)
2025-07-10 01:00:01 Next wakeup is 2025-07-10 02:00:00
2025-07-10 01:00:02 BackupPC_nightly now running BackupPC_refCountUpdate -m
-s -c -P 12 -r 128-255
2025-07-10 01:00:02 BackupPC_nightly now running BackupPC_refCountUpdate -m
-s -c -P 12 -r 0-127
2025-07-10 01:00:02 admin1 : __bpc_pidStart__ 1251857
2025-07-10 01:00:02 admin : __bpc_pidStart__ 1251858
2025-07-10 01:00:02 admin1 : BackupPC_refCountUpdate: missing pool file
800fc7992694fd8d405fb9e2bfae2fce count 11
2025-07-10 01:00:02 admin1 : BackupPC_refCountUpdate: missing pool file
8177f5548c9e0fff43b441518f34912a count 11
2025-07-10 01:00:02 admin1 : BackupPC_refCountUpdate: missing pool file
808da59f47929ea1c8f139aeb7f81ab3 count 1
2025-07-10 01:00:02 admin1 : BackupPC_refCountUpdate: missing pool file
80350ff3be63b92f0b1f53e04d4ba7a6 count 6
2025-07-10 01:00:02 admin1 : BackupPC_refCountUpdate: missing pool file
81146a7887f0d5ae4e9ac717068b62ae count 5
.
.
.
2025-07-10 01:00:22 admin1 : BackupPC_refCountUpdate: missing pool file
ff18066981f5338926eb377d345edc88 count 2
2025-07-10 01:00:22 admin1 : BackupPC_refCountUpdate total errors: 348019
2025-07-10 01:00:22 admin1 : __bpc_pidEnd__ 1251857
2025-07-10 01:00:22 Finished admin1 (BackupPC_nightly -P 12 128 255)
2025-07-10 01:00:22 Pool nightly clean removed 0 files of size 0.00GB
2025-07-10 01:00:22 Pool is 0.00GB, 0 files (0 repeated, 0 max chain, 0 max
links), 1 directories
2025-07-10 01:00:22 Cpool nightly clean removed 0 files of size 0.00GB
2025-07-10 01:00:22 Cpool is 0.00GB, 0 files (0 repeated, 0 max chain, 0
max links), 1 directories
2025-07-10 01:00:22 Pool4 nightly clean removed 0 files of size 0.00GB
2025-07-10 01:00:22 Pool4 is -1298.44GB, 311675 files (0 repeated, 0 max
chain, 340 max links), 16512 directories
2025-07-10 01:00:22 Cpool4 nightly clean removed 0 files of size 0.00GB
2025-07-10 01:00:22 Cpool4 is -31.59GB, 416002 files (0 repeated, 0 max
chain, 2698 max links), 16512 directories
2025-07-10 01:00:22 Running BackupPC_rrdUpdate (pid=1251914)
2025-07-10 01:00:22 admin-1 : RRD updated: date 1752192000; cpoolKb
0.000000; total 38591622558.731445; poolKb 0.000000; pool4Kb
-1329601096.000000; cpool4Kb -32346012.000000
2025-07-10 01:00:23 Finished admin-1 (BackupPC_rrdUpdate)
Any thoughts how I can access the data which surely seems to be there in one
form or another?
Dave
________________________________
From: G.W. Haywood <bac...@jubileegroup.co.uk>
Sent: Thursday, July 10, 2025 06:22
To: backuppc-users@lists.sourceforge.net <backuppc-users@lists.sourceforge.net>
Subject: Re: [BackupPC-users] Problem accessing v3 backups
Hi there,
On Thu, 10 Jul 2025, Dave Bachmann wrote:
> I am trying to see if I can recover a file that may have been
> deleted years ago and *may* be on a very old backup disk. The
> backups were done with a v3 version of BackupPC and I've done what I
> thought was required to make that disk usable but it's still not
> working right. So far, I've tried all the suggestions I could find
> in the documentation and online yet still have the same problems - I
> can see the dates and info about all of the backups on each of the
> hosts as all of the log files seems to still be intact, but trying
> to access the contents always generates messages like: "Error:
> Directory /var/lib/backuppc/pc/XXXXXX/49 is empty" and, of course,
> it is empty.
Have you tried using the 'BackupPC_ls' script?
> The pool structure looks normal, but there are no files in
> pool/aa/aa for example
That's more or less as I'd expect if the backups are compressed.
I say 'more or less' because my uncompressed pool is entirely empty.
> while the Cpool structure is filled with
> reasonable looking filenames in folders like cpool/aa/aa.
Can you be more specific about the 'reasonable looking filenames'?
> I've tried running "BackupPC_migrateV3toV4 -av"
If you've successfully converted a V3 backup to a V4 backup then the
names of the files in .../cpool/aa/aa should be digests. The first
four characters of each name will be 'aaaa', 'aaab', 'abaa' or 'abab'.
What I would call reasonable-looking filenames will be under the tree
at .../pc/host/<backupnumber>/. Here's an example from my backups: (I
have aliased 'l' to 'ls -lrt' in my bash profile and the backup server
is not really called 'backupserver':)
backupserver:/var/lib/BackupPC$ >>> l
total 12
drwxr-x--- 16 backuppc backuppc 4096 Dec 1 2024 pc
drwxr-x--- 2 backuppc backuppc 4096 Jan 6 2025 pool
drwxr-x--- 130 backuppc backuppc 4096 Jul 10 07:58 cpool
backupserver:/var/lib/BackupPC$ >>> l pc/laptop3/1986/
total 36
-rw-r----- 1 backuppc backuppc 0 Jul 10 06:00
attrib_d7b4879008be7535abe378a001211f00
drwxr-x--- 7 backuppc backuppc 4096 Jul 10 06:00 inode
drwxr-x--- 223 backuppc backuppc 12288 Jul 10 06:09 fConfig
drwxr-x--- 6 backuppc backuppc 4096 Jul 10 06:09 fHomes
-rw-r----- 1 backuppc backuppc 583 Jul 10 06:16 backupInfo
drwxr-x--- 2 backuppc backuppc 12288 Jul 10 06:20 refCnt
backupserver:/var/lib/BackupPC$ >>> l pool/
total 0
piplus:/var/lib/BackupPC$ >>> ls cpool/aa/aa
aaaa01d2d42e7572fc4cf5ec83f700e3 aaaa7334a2d53adff96cb26bc800a815 ...
...
...
--
73,
Ged.
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