<div dir="ltr">Uh... not 19, 29! Used the wrong prime number!</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, May 16, 2020 at 10:32 AM Charles Perkins <<a href="mailto:chuck@kuracali.com">chuck@kuracali.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">An empty but still valid Oberon filesystem will have one sector at sector number 19 (which you divide by 19 and add the FAT file system size to to get the real sector) with the <span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">DirMark (</span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">9B1EA38DH)</span> as the first 32-bit word in it with the rest of the sector being zeros.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, May 16, 2020 at 10:20 AM Tomas Kral <<a href="mailto:thomas.kral@email.cz" target="_blank">thomas.kral@email.cz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Sat, 16 May 2020 19:01:51 +0200<br>
Tomas Kral <<a href="mailto:thomas.kral@email.cz" target="_blank">thomas.kral@email.cz</a>> wrote:<br>
<br>
> <a href="http://ORC.SR" rel="noreferrer" target="_blank">ORC.SR</a> <some command> to initialise directory file system, that makes<br>
> it clean?<br>
<br>
This seems brutal, if I got it right, will it zero 64MB FS?<br>
<br>
dd of=RISC-NULL.FS if=/dev/null bs=1K skip=$((256*1024+1)) count=64K<br>
<br>
-- <br>
Tomas Kral <<a href="mailto:thomas.kral@email.cz" target="_blank">thomas.kral@email.cz</a>><br>
--<br>
<a href="mailto:Oberon@lists.inf.ethz.ch" target="_blank">Oberon@lists.inf.ethz.ch</a> mailing list for ETH Oberon and related systems<br>
<a href="https://lists.inf.ethz.ch/mailman/listinfo/oberon" rel="noreferrer" target="_blank">https://lists.inf.ethz.ch/mailman/listinfo/oberon</a><br>
</blockquote></div>
</blockquote></div>