CHFS

<h2 id="structure">Structure</h2>
<p>Similar to <a href="/facts/UBIFS/WkQzBBrr">UBIFS</a>, the CHFS file system utilizes a separate layer for handling Flash aging and bad blocks, called EBH (erase block handler). The file system itself is modelled after <a href="/facts/JFFS2/DBtCSotT">JFFS2</a>, thus the internal structure is very similar.
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<h2 id="chewiefs">ChewieFS</h2>
<p>CHFS was originally called ChewieFS during development.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> The name was changed to avoid legal issues and to have a more neutral name.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a>
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<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/List_of_file_systems/GMUaz18t">List of file systems</a></li>
<li><a href="/facts/NetBSD/PTm5HWls">NetBSD</a></li>
<li>chfs <a href="/facts/AIX/cRWERua2">AIX</a> command line option for modifying filesystems</li></ul>

<h2 id="external-links">External links</h2>
<ul><li><a href="https://web.archive.org/web/20180308072816/http://chewiefs.sed.hu/">Chip Flash File System</a> at the <a href="/facts/Wayback_Machine/nmQ3a6JC">Wayback Machine</a> (archived 2018-03-08)</li>
<li><a href="https://wiki.freebsd.org/BSDDay_2010?action=AttachFile&do=view&target=bsdday2010-chewiefs.pdf">ChewieFS - a JFFS2 like flash filesystem for NetBSD</a> (Tamás Tóth, BSD-Day 2010)</li>
<li><a href="https://man.netbsd.org/mount_chfs.8">mount_chfs(8)</a> – <a href="/facts/NetBSD/PTm5HWls">NetBSD</a> System Manager's <a href="/facts/Man_page/S2yYjy0J">Manual</a></li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>Tamás Tóth (2011-11-10). "ChewieFS". tech-kern@NetBSD (Mailing list). Retrieved February 4, 2012. <a href="https://mail-index.netbsd.org/tech-kern/2011/11/10/msg011855.html" target="_blank">https://mail-index.netbsd.org/tech-kern/2011/11/10/msg011855.html</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>Ádám Hóka (2011-11-10). "Re: ChewieFS". tech-kern@NetBSD (Mailing list). Retrieved 2019-03-05. <a href="https://mail-index.netbsd.org/tech-kern/2011/11/10/msg011858.html" target="_blank">https://mail-index.netbsd.org/tech-kern/2011/11/10/msg011858.html</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
<li id="fn:3"><p>Tamás Tóth (2011-11-10). "ChewieFS". tech-kern@NetBSD (Mailing list). Retrieved February 4, 2012. <a href="https://mail-index.netbsd.org/tech-kern/2011/11/10/msg011855.html" target="_blank">https://mail-index.netbsd.org/tech-kern/2011/11/10/msg011855.html</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li>
<li id="fn:4"><p>Ádám Hóka (2011-11-24). "Import mount_chfs for CHFS". Retrieved 2021-05-23. <a href="https://anonhg.netbsd.org/src/file/f5971af7b30b/sbin/mount_chfs/mount_chfs.8" target="_blank">https://anonhg.netbsd.org/src/file/f5971af7b30b/sbin/mount_chfs/mount_chfs.8</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li>
</ol>

CHFS open-in-new

CHFS