<div dir="ltr">No worries. I've had a ton of experiences where something might not necessarily solve the current problem, but it comes up six months or even years down the road. Never know when you might need something.<div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 26, 2016 at 5:55 PM, Chris Fedde <span dir="ltr"><<a href="mailto:chris@fedde.us" target="_blank">chris@fedde.us</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>To my knowledge dump does not work with "advanced" file systems (xfs, zfs, btrfs). They have their own tools.<br></div>Sorry I pointed you at tools that are not going to work for you. It looks lie there is an xfsdump available.<br></div><div>I have no experience with it but the manual page is encouraging.<span class="HOEnZb"><font color="#888888"><br></font></span></div><span class="HOEnZb"><font color="#888888"><div><br></div>chris<br></font></span></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 26, 2016 at 2:48 PM, Charles Burton <span dir="ltr"><<a href="mailto:charles.d.burton@gmail.com" target="_blank">charles.d.burton@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Yeah, for xfs there's a whole suite of tools that aren't what you would normally expect. <br><br>xfreerdp xfs_db xfs_growfs xfs_mdrestore xfs_quota<br>xfs_admin xfs_estimate xfs_info xfs_metadump xfs_repair<br>xfs_bmap xfs_freeze xfs_io xfs_mkfile xfs_rtcp<br>xfs_copy xfs_fsr xfs_logprint xfs_ncheck <br><br></div>All part of the xfsprogs. You can't use the linux dump command either, you have to install and use xfsdump.<br></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 26, 2016 at 8:40 PM, Mike Bean <span dir="ltr"><<a href="mailto:beandaemon@gmail.com" target="_blank">beandaemon@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">xfs. Fiddling with it. It's completely possible/plausible it could be a bad superblock<div><br></div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 26, 2016 at 2:32 PM, Charles Burton <span dir="ltr"><<a href="mailto:charles.d.burton@gmail.com" target="_blank">charles.d.burton@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Oh, what filesystem is it too? I know xfs has special tools for dealing with it.<br></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 26, 2016 at 8:31 PM, Charles Burton <span dir="ltr"><<a href="mailto:charles.d.burton@gmail.com" target="_blank">charles.d.burton@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>This was done on Fedora 23 with LVM for everything except /boot as well. Dump runs on the VFS layer not the device layer, LVM is technically device layer think of it like this:<br><br></div>file -> filesysystem -> lvm -> device<br><br></div>Dump operates at the filesystem layer, so getting a bad superblock means that you likely actually have a bad superblock. Try running fsck against that filesystem and see what you get.<br><div><div><br></div></div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 26, 2016 at 8:19 PM, Charles Burton <span dir="ltr"><<a href="mailto:charles.d.burton@gmail.com" target="_blank">charles.d.burton@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>If you want you can also add compression:<br><br></div>dump -0u -f - /home/mbean | gzip > /mnt/mbean.dump.gz<br></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 26, 2016 at 8:16 PM, Charles Burton <span dir="ltr"><<a href="mailto:charles.d.burton@gmail.com" target="_blank">charles.d.burton@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>I just verified that it works fine on LVM. It should look like this:<br><br></div>dump -0u -f /mnt/mbean.dump /home/mbean<br><br></div>The /mnt/mbean.dump is the destination file to dump to. The /home/mbean is filesystem you wish to dump from. <br></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 26, 2016 at 8:10 PM, Mike Bean <span dir="ltr"><<a href="mailto:beandaemon@gmail.com" target="_blank">beandaemon@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Sure looks that way. Works on physical devices, didn't seem to care for my syntax. It's dump -0u -f (destination) (source)?<div><br></div><div><br></div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 26, 2016 at 2:08 PM, Charles Burton <span dir="ltr"><<a href="mailto:charles.d.burton@gmail.com" target="_blank">charles.d.burton@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>It doesn't work quite like you're thinking. Dump doesn't care about LVM, not at least as far as I know. Try:<br><br></div>dump -0u -f /mnt/mbean /home/mbean<br></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 26, 2016 at 8:04 PM, Mike Bean <span dir="ltr"><<a href="mailto:beandaemon@gmail.com" target="_blank">beandaemon@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Thanks for the tip. At least at first blush it looks like I can't use dump and restore. They only work on devices and not on logical volumes. At least not on my logical volumes (I'm getting bad magic number in super-block.) I think I'm going to play with it a little while longer, see if I can figure out if it really can't handle or if I'm just PEBKAC. Could also be this box. I'm testing it on a box that I don't really care if it breaks<div><br></div><div><div>dump -0u -f /mnt/mbean /dev/mapper/rootvg-homelv</div><div> DUMP: Date of this level 0 dump: Tue Apr 26 14:00:16 2016</div><div> DUMP: Dumping /dev/mapper/rootvg-homelv (/home) to /mnt/mbean</div><div>/dev/mapper/rootvg-homelv: Bad magic number in super-block while opening filesystem</div><div> DUMP: The ENTIRE dump is aborted.</div></div><div><br></div><div>Mike B</div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Apr 25, 2016 at 12:34 PM, Chris Fedde <span dir="ltr"><<a href="mailto:chris@fedde.us" target="_blank">chris@fedde.us</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">I say this every time backups get mentioned but I have to say it again. I like dump. Dump and restore are a perfect set of tools that solve the backup problem neatly and flexibly. And so far have not let me down for either fat finger recovery or for full disk recovery. </p>
<p dir="ltr">I find it silly that this tool that is integrated with the OS and woks so well is overlooked by everyone. Even by the certification folks.</p>
<p dir="ltr">Let me say it again. I like dump. Maybe I need to write up a blog article or something.</p><div><div>
<div class="gmail_quote">On Apr 19, 2016 6:33 PM, "Mike Bean" <<a href="mailto:beandaemon@gmail.com" target="_blank">beandaemon@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Yeah, I know ; )<br><br></div>Mike B<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 19, 2016 at 3:49 PM, David L. Anselmi <span dir="ltr"><<a href="mailto:anselmi@anselmi.us" target="_blank">anselmi@anselmi.us</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>Mike Bean wrote:<br>
> Theorhetically yes, and we did that, but as predicted, since I #1 noticed<br>
> the box was down and #2 attempted to fix it, I therefore have ownership of<br>
> it now. Have to look into a cheap scale able method to get actual backups<br>
> and stop depending on snap shots. I suppose I could just back it up. But<br>
> it's only a matter of time before someone notices the Jenkins box has<br>
> backups and complains that all the other boxes don't.<br>
<br>
</span>You need to get a new job. Life's too short...<br>
<br>
And for everyone else, this is an example why you vote against whatever the government wants to<br>
spend money on.<br>
<br>
Dave<br>
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