I haven't seen this issue posted anywhere else. It's not the same issue. Basically, I'm installing Raspbian with a fresh install. I boot into it and am immediately low on disk space. Here's why:

df -h
Filesystem    Size  Used  Avail  Use%  Mounted on
/dev/root     15G   3.3G  11G    24%   /
..... a bunch of other tiny partitions
/dev/mmcblk0p1 44M  4.0k  44M    1%    /boot

I can install applications just fine. But I can't create a backup with Timeshift. It's trying to back up to my /boot partition and not my root partition. Why?

  • 3
    How is the disk space low? You appear to have 76% (11G of 15G) available
    – Bra1n
    Commented Dec 17, 2020 at 16:51
  • And it looks like you have 99% of /boot available. I think your problem lies elsewhere. Commented Dec 17, 2020 at 16:52
  • 1
    Tell timeshift not to backup to /boot. Not a Pi problem.
    – Dirk
    Commented Dec 17, 2020 at 16:54
  • I can't select that partition. Timeshift just shows my smaller partition. Commented Dec 17, 2020 at 16:56
  • 1
    You obviously aren't installing the latest Raspberry Pi OS
    – Milliways
    Commented Dec 17, 2020 at 21:36

1 Answer 1


As the man page suggests, try adding --snapshot-device /dev/root, or set backup_device_uuid in /etc/timeshift.json to configure it for your system.

Side note: /dev/root is a rather odd name, your root filesystem should be on /dev/mmcblk0p2 on an official Pi OS image, or /dev/mmcblk0p6 if you use NOOBS.

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