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<font size="-1">Package: f2fs-tools<br>
Version: 1.4.0-2<br>
Severity: normal<br>
<br>
Dear Maintainer,<br>
<br>
*** Reporter, please consider answering these questions, where
appropriate ***<br>
<br>
mkfs fails on 100MB, but works on 1GB. Really sounds like there is
a minimal size. Even if my interpretation is wrong, Failed to
prepare a super block ... is not an intructive error message.<br>
<br>
There exist FLASH devices down to 8MB; the DOC2000 was a very
famous chip with 32MB.<br>
<br>
The goal of the day was only to check if my kernel supported F2FS
(if I could mount a block); I guess some people may want to use
F2FS on old and small devices.<br>
</font><br>
# dd if=/dev/zero of=fff bs=1024 count=102400<br>
102400+0 records in<br>
102400+0 records out<br>
104857600 bytes (105 MB) copied, 2.95282 s, 35.5 MB/s<br>
<br>
# mkfs.f2fs fff<br>
F2FS-tools: mkfs.f2fs Ver: 1.4.0 (2014-09-18)<br>
Info: sector size = 512<br>
Info: total sectors = 204800 (in 512bytes)<br>
Info: zone aligned segment0 blkaddr: 512<br>
Error: Failed to prepare a super block!!!<br>
Error: Could not format the device!!!<br>
<br>
# dd if=/dev/zero of=fff bs=1024 count=1024000<br>
1024000+0 records in<br>
1024000+0 records out<br>
1048576000 bytes (1.0 GB) copied, 48.8232 s, 21.5 MB/s<br>
<br>
# mkfs.f2fs fff<br>
F2FS-tools: mkfs.f2fs Ver: 1.4.0 (2014-09-18)<br>
Info: sector size = 512<br>
Info: total sectors = 2048000 (in 512bytes)<br>
Info: zone aligned segment0 blkaddr: 512<br>
Info: Discarding device<br>
Info: format successful<br>
<br>
<br>
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<br>
-- System Information:<br>
Distributor ID: Raspbian<br>
Description: Raspbian GNU/Linux 8.0 (jessie)<br>
Release: 8.0<br>
Codename: jessie<br>
Architecture: armv7l<br>
<br>
Kernel: Linux 4.4.48-v7+ (SMP w/4 CPU cores)<br>
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)<br>
Shell: /bin/sh linked to /bin/dash<br>
Init: systemd (via /run/systemd/system)<br>
<br>
Versions of packages f2fs-tools depends on:<br>
ii libc6 2.19-18+deb8u7<br>
ii libuuid1 2.25.2-6<br>
<br>
f2fs-tools recommends no packages.<br>
<br>
f2fs-tools suggests no packages.<br>
<br>
-- no debconf information<br>
<br>
<pre class="moz-signature" cols="74">--
>o_/ DEMAINE Benoît-Pierre (aka DoubleHP) <a class="moz-txt-link-freetext" href="http://benoit.demaine.info/">http://benoit.demaine.info/</a>
If computing were an exact science, IT engineers would'nt have work \_o<
"So all that's left, Is the proof that love's not only blind but deaf."
(FAKE TALES OF SAN FRANCISCO, Arctic Monkeys)
</pre>
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