Hi Phil, are you sure that the correct SSH key is used for the connection?
You mentioned that the command works as root, so I assume that the SSH key that you authorized for connecting to the client is root's rather than backuppc's. (Crucial line: "Permission denied (publickey,keyboard-interactive).") If so, either ssh-genkey as backuppc and authorize the corresponding pubkey on the client, or copy over root's key to backuppc; typically, this should work as root via
cp -i ~root/.ssh/id_?sa* ~backuppc/.ssh/
chown backuppc:backuppc ~/backuppc/.ssh/id_?sa*
Another reason could be that, unless you disabled SSH host key checking,
you need to manually SSH to the client as user backuppc once to confirm
the client's key at the prompt. To check this,
su -s /bin/bash backuppc
ssh ${client_user}@xxx.xxx.xxx.xxx
Note the ${client_user} - I guess that would be root, so it works
without any specification when you run SSH as root, but not as backuppc.
You might want to add a corresponding UserName entry in your backuppc
user's SSH config file.
HTH, Alex On 02/07/2018 04:10 PM, Philip Parsons (Velindre - Medical Physics) wrote:
Hi Robert, Thanks for that.I’ve just tried it and (I should have already guessed this!), it gave the same error message as BackupPC reported JAny ideas what I may be doing wrong? Thanks, Phil *From:*Robert Trevellyan [mailto:robert.trevell...@gmail.com] *Sent:* 07 February 2018 14:33*To:* General list for user discussion, questions and support <backuppc-users@lists.sourceforge.net>*Subject:* Re: [BackupPC-users] ssh from an account without a shell To run a shell as the backuppc user, do something like this: su -s /bin/bash backuppc Robert TrevellyanOn Wed, Feb 7, 2018 at 8:22 AM, Philip Parsons (Velindre - Medical Physics) <philip.pars...@wales.nhs.uk <mailto:philip.pars...@wales.nhs.uk>> wrote:Hi all, I’ve tried looking in a couple of places, but I can’t find the answer to this. I have essentially used this webpage to install and configure backuppc 4.1.5 on Ubuntu 16.04 LTS - https://github.com/backuppc/backuppc/wiki/Installing-BackupPC-4-from-git-on-Ubuntu-Xenial-16.04-LTS I then tried to create an rsync backup to a SUSE server using https://www.howtoforge.com/linux_backuppc_p4 and various other sources. When I try to run the backup it fails with ‘No files dumped for share /data/rtgrid/’ When I run the line from the XferLOG: /usr/local/bin/rsync_bpc --bpc-top-dir /data/backuppc --bpc-host-name rtgridserver --bpc-share-name /data/rtgrid/ --bpc-bkup-num 0 --bpc-bkup-comp 3 --bpc-bkup-prevnum -1 --bpc-bkup-prevcomp -1 --bpc-bkup-inode0 2 --bpc-attrib-new --bpc-log-level 1 -e /usr/bin/ssh\ -l\ root --rsync-path=/usr/bin/sudo\ /usr/bin/rsync --super --recursive --protect-args --numeric-ids --perms --owner --group -D --times --links --hard-links --delete --delete-excluded --one-file-system --partial --log-format=log:\ %o\ %i\ %B\ %8U,%8G\ %9l\ %f%L --stats --checksum --timeout=72000 --exclude=var/experiment --exclude=junkdrawer --exclude=scratchpad --exclude=tmp xxx.xxx.xxx.xxx:/data/rtgrid/ As root, it runs. However, I get the error message (tagged at the bottom for readability) when backuppc runs the job. I’m probably making things more confusing than they should be, but I think the install webpage creates a shell-less service backuppc user. I then can’t su to backuppc to run the line to test it. Has anyone else used this kind of account on backuppc? Can anyone suggest a fix for this? Thanks in advance, Philip Parsons Contents of file /data/backuppc/pc/rtgridserver/XferLOG.bad.z, modified 2018-02-07 06:00:06 XferLOG file /data/backuppc/pc/rtgridserver/XferLOG.0.z created 2018-02-07 06:00:00 Backup prep: type = full, case = 1, inPlace = 1, doDuplicate = 0,newBkupNum = 0, newBkupIdx = 0, lastBkupNum = , lastBkupIdx = (FillCycle = 0, noFillCnt = )Running: /usr/local/bin/rsync_bpc --bpc-top-dir /data/backuppc --bpc-host-name rtgridserver --bpc-share-name /data/rtgrid/ --bpc-bkup-num 0 --bpc-bkup-comp 3 --bpc-bkup-prevnum -1 --bpc-bkup-prevcomp -1 --bpc-bkup-inode0 2 --bpc-attrib-new --bpc-log-level 1 -e /usr/bin/ssh\ -l\ root --rsync-path=/usr/bin/sudo\ /usr/bin/rsync --super --recursive --protect-args --numeric-ids --perms --owner --group -D --times --links --hard-links --delete --delete-excluded --one-file-system --partial --log-format=log:\ %o\ %i\ %B\ %8U,%8G\ %9l\ %f%L --stats --checksum --timeout=72000 --exclude=var/experiment --exclude=junkdrawer --exclude=scratchpad --exclude=tmp xxx.xxx.xxx.xxx:/data/rtgrid/ / full backup started for directory /data/rtgrid/ Xfer PIDs are now 111286 This is the rsync child about to exec /usr/local/bin/rsync_bpc Permission denied (publickey,keyboard-interactive). rsync_bpc: connection unexpectedly closed (0 bytes received so far) [Receiver] Done: 0 errors, 0 filesExist, 0 sizeExist, 0 sizeExistComp, 0 filesTotal, 0 sizeTotal, 0 filesNew, 0 sizeNew, 0 sizeNewComp, 2 inode rsync error: unexplained error (code 255) at io.c(629) [Receiver=3.0.9.11] rsync_bpc exited with fatal status 255 (65280) (rsync error: unexplained error (code 255) at io.c(629) [Receiver=3.0.9.11]) Xfer PIDs are now Got fatal error during xfer (No files dumped for share /data/rtgrid/) Backup aborted (No files dumped for share /data/rtgrid/) BackupFailCleanup: nFilesTotal = 0, type = full, BackupCase = 1, inPlace = 1, lastBkupNum = Removing empty backup #0 Xfer PIDs are now 111317 BackupPC_backupDelete: removing #0 BackupPC_backupDelete: No prior backup for merge Xfer PIDs are now 111317,111318 BackupPC_refCountUpdate: host rtgridserver got 0 errors (took 0 secs) Xfer PIDs are now 111317 Xfer PIDs are now Finished BackupPC_backupDelete, status = 0 (running time: 0 sec) Xfer PIDs are now Running BackupPC_refCountUpdate -h rtgridserver -f on rtgridserver Xfer PIDs are now 111319 BackupPC_refCountUpdate: host rtgridserver got 0 errors (took 0 secs) Xfer PIDs are now Finished BackupPC_refCountUpdate (running time: 0 sec) Xfer PIDs are now ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net <mailto:BackupPC-users@lists.sourceforge.net> List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/ ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
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