[Buildroot] Specify relative size of rootfs

Andrea Simeoni andreasimeoni73 at gmail.com
Sun Feb 2 13:43:35 UTC 2020

in Filesystem images > ext2/3/7 root filesystem I can specify the exact
size of the partition.
Instead I would find more useful to specify a relative size, to the minimum
needed. I.e., leave 200M free after putting in all the stuff. Otherwise I

1. compile
2. burn an image (or mount locally)
3. inspect the disk usage with `df -h`
4. change the parameters above
5. compile

If I need to tweak my environment adding (or removing) packages I have to
do again all the steps.
Andrea S.
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