No,mkfs is not working. I tried vfat,ext2,ext3 but everything fails .<br><br>strace output -<br>open(&quot;/dev/sr1&quot;, O_RDWR|O_EXCL)         = -1 EROFS (Read-only file system)<br>write(2, &quot;mkfs.vfat: unable to open /dev/s&quot;..., 35mkfs.vfat: unable to open /dev/sr1<br>
) = 35<br>exit_group(1)                           = ?<br><br><br><br><div class="gmail_quote">On Mon, Mar 7, 2011 at 4:37 PM, Debayan Banerjee <span dir="ltr">&lt;<a href="mailto:debayanin@gmail.com">debayanin@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="im">On 7 March 2011 16:33, Lakshmipathi.G &lt;<a href="mailto:lakshmipathi.g@gmail.com">lakshmipathi.g@gmail.com</a>&gt; wrote:<br>

&gt; Hi -<br>
&gt; I have an USB drive formatted as readonly ISO9660 . I need to reformat it .<br>
<br>
</div>mkfs.vfat -I /dev/sdb<br>
<font color="#888888"><br>
--<br>
Debayan Banerjee<br>
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</font></blockquote></div><br><br clear="all"><br>-- <br>----<br>Cheers,<br>Lakshmipathi.G<br>FOSS Programmer.<br><a href="http://www.giis.co.in">www.giis.co.in</a><br>