If you are using an XO-1.0 you must to use osXX.img instead osXX.zd. zd files are for SD cards and XO 1 has got NAND. cheers, <div style="text-align: left;">Esteban Bordón</div> <div style="text-align: left;">Investigación y Desarrollo - Plan Ceibal</div>CITS - Av. Italia 6201 - Montevideo, Uruguay C.P. 11500 Tel: (+598) 2601 5773 int. 2228 Email: <a href="mailto:ebordon@plan.ceibal.edu.uy" target="_blank">ebordon@plan.ceibal.edu.uy</a> <div class="gmail_quote">2010/11/22 Rebecca Young <<a href="mailto:rdyperu09@gmail.com">rdyperu09@gmail.com</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> I am trying to update a locked XO-1 to the latest stable release 10.1.2. I think I followed all the directions correctly. I tried to run the XO using the USB with the fs.zip and os852.zd files. I got an error message buffer@900000 :1: Image file is not a multiple of the NAND erase block size OLPC C2, 256 MiB memory installed, S/N SHC839003C2 OpenFirmware CL1 Q2E41 Q2E Use power button to power off Any suggestions what I should do? Thanks. Becky _______________________________________________ Dextrose mailing list <a href="mailto:Dextrose@lists.sugarlabs.org">Dextrose@lists.sugarlabs.org</a> <a href="http://lists.sugarlabs.org/listinfo/dextrose" target="_blank">http://lists.sugarlabs.org/listinfo/dextrose</a> </blockquote></div>