216 lines
4.4 KiB
HTML
216 lines
4.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML
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><HEAD
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><TITLE
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>Editing FLASH image and other tools</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="CompaqT1500-Linux HOWTO"
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HREF="index.html"><LINK
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REL="PREVIOUS"
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TITLE="The one true way"
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HREF="debian.html"><LINK
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REL="NEXT"
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TITLE="XFree86"
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HREF="x146.html"></HEAD
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>CompaqT1500-Linux HOWTO</TH
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></TR
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><TR
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WIDTH="10%"
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><DIV
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><H1
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CLASS="SECT1"
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><A
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NAME="AEN131"
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></A
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>5. Editing FLASH image and other tools</H1
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN133"
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></A
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>5.1. Editing Flash image</H2
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><P
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>The T1500s come with a utility called 'makeflash' (which lives in /sbin and
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also comes on the CD). You can use this to generate a flash filesystem image
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from a tar.gz, which can either be local, or an NFS / SMB file. This utility
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generates all the necessary checksums too.</P
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><P
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>1. Flashing with a Slackware 8.0 image doesn't work, even with the calculated checksum. This suggests to me that there is a further check made on vmlinux itself.</P
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><P
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>2. Having dissected the leo.boot and vmlinux files supplied with the unit,
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I
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suspect that leo.boot checks vmlinux for the string "xxxxyyyyWYSEwysexxxx"
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which is duly included in the custom kernel they use.</P
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><P
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>3. Leo.boot is in fact a Win CE related thing, with a queer bolt-on to allow
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linux boots. The normal Win CE leo.boot is about half the size. It uses
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the Eboot protocol for both ethernet and parallel port flash programming.
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There are some free Linux tools available to format images correctly for
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replacing leo.boot and also the OS image, but they rely on you supplying a
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suitably compiled object version of the bootrom.</P
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><P
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>Be careful when running it though - it is possible to flash the thing to a
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state in which the only way to get it booting again is to use the Wyse-provided
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DOS util / laplink cable setup.</P
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><P
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>Also, if anyone manages to get makeflash running on something which isn't the
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terminal, could you let me know how? AFAICT, it's trying to link with a very
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old glibc and libforms.You should be able to flash-update the T1500 a few 100,000 times.</P
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><P
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>Apparently the T1500 is a Wyse WT3X15, based on what they call the 'Leo Board'.
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You can download a DOS reflashing util, and some docs for it from the UK Wyse
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website, in the Customer Support section's firmware page. It requires a parallel
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laplink cable.</P
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN142"
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></A
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>5.2. Mounting FLASH</H2
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><P
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>After running the mknod commands below, you can then mount /dev/fnand and /dev/fnand1, which are both 16Mb flashfs partitions. You can also mount /dev/fram, and write
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to it, however the data disappeared after umounting & remounting. It may have
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use as swap space.</P
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><TABLE
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BORDER="1"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="SCREEN"
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>mknod /dev/fcard b 63 0
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mknod /dev/fcard.fmt b 63 128
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mknod /dev/fcard1 b 63 1
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mknod /dev/fcard1.fmt b 63 129
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mknod /dev/fnand b 62 0
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mknod /dev/fnand.fmt b 62 128
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mknod /dev/fnand1 b 62 2
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mknod /dev/fnand1.fmt b 62 120
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mknod /dev/fnor b 65 0
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mknod /dev/fnor.2m b 65 128
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mknod /dev/fram b 64 128</PRE
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></FONT
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></TD
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>The one true way</TD
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