How do I copy an entire Macintosh HD to an external hard drive while in the recovery partition?

Question

macOS

Such a misfortune - I used CleanMyMac3 and when I rebooted my macbook, I covered myself - sometimes the mouse flickers, the download is at 30%
Now I'm in the recovery system in disk utility.
And here it is possible to erase the connected external HDD and copy all the macbook files to it.
Is it possible to copy files without erasing the hard drive?

Answer 1

Karoch.
I am now in the recovery system (Cmd + R at boot), here you can go to the browser and do what you want from the browser.
Thus, I found all possible free remote storages and copy the file there.
Cons:
I can only select files from the boot menu - I can't copy, rename, or move files. So just copy. Create a similar architecture of folders in the storage and copy there a couple of three files. This is hell.
Make backups, gentlemen.