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billw2 / rpi-clone

A shell script to clone a booted disk.
BSD 3-Clause "New" or "Revised" License
2.52k stars 331 forks source link

Allow cloning from sda1 instead of mmblk0 for USB-booting setups #42

Closed thediveo closed 7 years ago

thediveo commented 7 years ago

Some of my Raspberry Pis are set up to boot from an USB mass storage device, so they don't have any mSD card inserted. I would like to clone and backup these systems too, without having to resort to the GUI-based clone program. Can you please add a command line option that allows changing the source block device?

SpoddyCoder commented 7 years ago

This is quite a big change, so it may be a while before it's made. The source device is referenced at several points in the rpiclone script and has some implicit assumptions about partition identifiers - which may be different for your device.

ClonePi which performs a similar function to rpiclone, but extends it in a number of ways to be more flexible can be found here...

https://github.com/SpoddyCoder/clonepi

... this allows the block device and partition identifiers can be specified in conf. I haven't tested your specific use case, but it should work.

framps commented 7 years ago

Support for the new Raspi3 feature you're asking for, to boot from USB only, is available in raspiBackup. Just give it a try.

thediveo commented 7 years ago

While I can somehow understand people trying advertising their own solutions in every conceivable situation, I would like to ask commenters here to refrain from further sales pitches. My issue is directed at rpi-clone which works just fine, thank you.

To bring this issue discussion to a sensible, technical level instead of sales pitching: the number of places where mmcblk0 is used is limited. For partitions it's the stem mmcblk0p plus partition number or stem sda plus partition number. No rocket science here. Nothing that couldn't be handled in the form of devicestem+partdesig+partno. For mSD: devicestem mmcblk0, partdesig p; while for other block device names the partdesig will be simply empty "".

framps commented 7 years ago

Looks like you didn't follow the link: raspiBackup is OpenSource and free as rpi-clone is. I thought I do you a favor pointing to raspiBackup which supports the feature you asked for. Instead you want to use rpi-clone and wait for somebody to add this support to rpi-clone. Maybe this guy can grab some code from raspiBackup to speed up the implementation. It took me a while to get this feature implemented and in particular tested.

Frankly I wouldn't have created raspiBackup if I would have known about this famous rpi-clone when I bought my first Raspi.

@billw2 Please let me know if you have an issue with my comments and I'll delete them.

SpoddyCoder commented 7 years ago

@TheDiveO Pffft - I'm a contributer to rpi-clone too. As @framps says - there are other free tools out there that can do what you need now. Pardon me for trying to be helpful...

Look at the pull request history & commit history for rpi-clone and you will find that it moves quite slowly, you'll likely be waiting a while for this feature to be added.

billw2 commented 7 years ago

@TheDiveO I've removed the hardwired mmcblk0 and rpi-clone should now work from your booted USB disk. The booted disk should be automatically determined from /etc/mtab, but if that doesn't work for some reason, there is a command line option for source disk as you mentioned. Hopefully you won't need to use that and running rpi-clone will just work with usage as before.

thediveo commented 7 years ago

@billw2 Many thanks for the quick response, this is highly appreciated. So we can use the bug tracker for tracking issues, not as a discussion forum. ;)

thediveo commented 7 years ago

Tried the updated script today on a Pi 3B and it works like a charm. Thank you very much!