[Backup Plugin] create a single img backup image for use with win32 disk imager / etcher, etc.

Hi,

I'm running OMV5 on a Raspberry Pi4. The easiest way to make backups is to clone the sd card with win32 disk imager and to restore with etcher.

However, my system is physically stored away somewhere... i need to climb a latter to physically access the pi.

I therefore was looking into the backup plugin. The plugin's gui reads that "dd - use dd to clone the entire drive to a compressed image file". I therefore expected one single img file, however, the backup created several files (gz, blkid, fdisk, grub, grubparts, packages). since dd is capable of writing sigle img files, it would be very handy if there would be a parameter for this. This would be very handy to single-board computer users like myself, because one needs just etcher or something similar to restore the image to a SD card.

Is this doable?

Best, M

Thanks ryecoaaron.

Is this doable from within the backup plugin? Or do I need another plugin? (sorry, I'm fairly new to OMV).

There is no data on my OS drive / just the OS.

M

... one other thing I noticed in the plugin:

the settings under "scheduled backup" appear to revert to their default settings. I changed the time interval to "weekly" and ticked "send email". I then clicked on apply. However, i'm seeing the defaults "daily" and "no email" when I'm opening the dialogue again.

M

Zitat von ryecoaaron

By doable, I meant the plugin could be changed to do this. Otherwise, you can always do it from the command line and a cron job.

This would be great. Being able to do this from within the plugin also implies that older backups are removed, etc. in other words this would imply a script and not just one command line.

Zitat von ryecoaaron

Did you click schedule backup again in the plugin?

Yes, I did. Clicking on "scheduled backup" brings up the dialogue.

M

Zitat von ryecoaaron

That is why the job is reset. You should only do this once. If you want to edit the job, do that from scheduled jobs tab.

noted.

Zitat von ryecoaaron

I added full disk dd option to the plugin. 5.2 in the repos now. I didn't test but usbimager or etcher should be able to write this image without decompressing it.

Great. Thanks! I'l try it out. M

Zitat von ryecoaaron

I added full disk dd option to the plugin. 5.2 in the repos now.

I cannot see an option in the gui of the plug-in. I have the 5.2 installed:

pi@omv:~ $ dpkg -l | grep openmediavault-backup
ii  openmediavault-backup            5.2                                 all          backup plugin for OpenMediaVault.

M

Zitat von ryecoaaron

ctrl-shift-R or clear your browser cache.

Thank you, that worked.

I now can see several files in the shared folder:

backup-omv_boot-31-Mar-2020_15-31-48.dd.gz
backup-omv-31-Mar-2020_16-59-33.ddfull.gz
backup-omv-31-Mar-2020_16-59-33.blkid
backup-omv-31-Mar-2020_16-59-33.fdisk
backup-omv-31-Mar-2020_16-59-33.grub
backup-omv-31-Mar-2020_16-59-33.grubparts
backup-omv-31-Mar-2020_16-59-33.packages

Which file would I have to select to write the full disk image to an SD card in Etcher?

• Selecting backup-omv_boot-31-Mar-2020_15-31-48.dd.gz would write the boot partition to the drive, and
• selecting backup-omv-31-Mar-2020_16-59-33.ddfull.gz would write the root partition,

But I cannot write both partitions to an SD card, correct? Do I have to put all these files in one container (zip?)?

I'm a bit confused. would it be possible to write the backup into one single .img file (i think dd is capable of doing this)?

Thanks, M

Zitat von salgem

Which file would I have to select to write the full disk image to an SD card in Etcher?

Selecting backup-omv_boot-31-Mar-2020_15-31-48.dd.gz would write the boot partition to the drive, and
selecting backup-omv-31-Mar-2020_16-59-33.ddfull.gz would write the root partition,

But I cannot write both partitions to an SD card, correct? Do I have to put all these files in one container (zip?)?

I'm a bit confused. would it be possible to write the backup into one single .img file (i think dd is capable of doing this)?

Thanks, M

Arrgh, sorry. backup-omv_boot-31-Mar-2020_15-31-48.dd.gz is from an older backup. The image file backup-omv-31-Mar-2020_16-59-33.ddfull.gz is the bit-to-bit image of the entire drive, correct? So, in case of emergency, I only have to select backup-omv-31-Mar-2020_16-59-33.ddfull.gz in Etcher to write back the bit-to-bit image of the full drive to another SD card, correct.

M

Zitat von ryecoaaron

Uh, that is what I did.

Sooooorrry. My bad! Was a bit confused. M