Yes, the backup file, created by `flashrom -r` is precisely 8M in size - no surprises there. How can I flash this system? It doesn't have DOS or Windows on it, and if I try to create a DOS image from which to boot, the 8M file won't fit on it.
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From: David Hendricks [mailto:dhendrix@google.com] Sent: Tuesday, January 08, 2013 8:59 PM To: Leslie Rhorer Cc: flashrom Subject: Re: [flashrom] Flashrom failure
You're fine :-) Apparently M5A99X-EVO-R20-ASUS-1302.CAP is not exactly 8MB, which is the size of your flash chip (W25Q64). This is just a simple sanity check flashrom uses to help prevent flashing the wrong file to your chip.
I took a quick look at a BIOS image from Asus' website and it appears that they append 2KB to their BIOS image:
007ff060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00800780 50 45 49 45 2b ac f5 ff 10 00 00 00 00 00 00 00 |PEIE+...........|
00800790 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
008007f0 e9 0d e0 ff ff 00 00 10 00 00 78 56 00 00 f0 ff |..........xV....|
00800800
Usually this junk vendors append to their BIOSes is benign, but you never really know... I recommend looking around to see if anyone else has had success flashing this board using Flashrom. I do not recommend bypassing the size check or truncating the extra 2KB unless you have a means of recovering (Backup BIOS ROM, external programmer, etc).
On Tue, Jan 8, 2013 at 5:26 PM, Leslie Rhorer lrhorer@mygrande.net wrote:
I don't think I am in any jeopardy, but I need to make sure, because an attempted flashrom write failed. In addition, I would like to get it to work, because it as been recommended I upgrade the BIOS due to issues in lm-sensors. When I attempted to upgrade the BIOS, I got this error:
RAID-Server:/RAID/Server-Main/Downloads/Asus Motherboards/M5A99X EVO R2.0# flashrom -w M5A99X-EVO-R20-ASUS-1302.CAP flashrom v0.9.4-r1395 on Linux 2.6.32-5-amd64 (x86_64), built with libpci 3.1.7, GCC 4.4.5, little endian flashrom is free software, get the source code at http://www.flashrom.org
Calibrating delay loop... OK. Found chipset "AMD SB700/SB710/SB750/SB850". Enabling flash write... OK. This chipset supports the following protocols: LPC, FWH, SPI. Found Winbond flash chip "W25Q64" (8192 kB, SPI) at physical address 0xff800000. Error: Image size doesn't match
I then verified the flash image against the backup image and it apparently passed:
RAID-Server:/RAID/Server-Main/Downloads/Asus Motherboards/M5A99X EVO R2.0# flashrom -v Safety_BIOS.cap flashrom v0.9.4-r1395 on Linux 2.6.32-5-amd64 (x86_64), built with libpci 3.1.7, GCC 4.4.5, little endian flashrom is free software, get the source code at http://www.flashrom.org
Calibrating delay loop... OK. Found chipset "AMD SB700/SB710/SB750/SB850". Enabling flash write... OK. This chipset supports the following protocols: LPC, FWH, SPI. Found Winbond flash chip "W25Q64" (8192 kB, SPI) at physical address 0xff800000. Flash image seems to be a legacy BIOS. Disabling coreboot-related checks. Reading old flash chip contents... done. Verifying flash... VERIFIED.
Am I in jeopardy, here? How can I get flashrom to properly write the new BIOS?
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