Re: [coreboot] Finding whether the BIOS is coreboot or not
* ron minnich rminn...@gmail.com [150718 18:10]: Could you also look for LBIO in the e and f segments? Since we moved the coreboot tables out of e and f you won't find anything like that anymore. 1. Use cbmem tool 2. Dump coreboot table with nvramtool 3. dmidecode 4. ACPI table vendor 5. flashrom -r and check the image for CBFS, ID and master header Stefan On Sat, Jul 18, 2015 at 12:34 AM Patrick Georgi pgeo...@google.com wrote: 2015-07-18 9:03 GMT+02:00 Kevin Wilson wkev...@gmail.com: Is there a way, from a device running Linux, to which I have access to the command line, to know whether the BIOS is coreboot or not ? by some utility, or by some sysfs entry ? We usually have coreboot related vendor names for ACPI tables (eg. dsdt table id 'COREBOOT'). Those are visible early on in dmesg, I think. Also our cbmem utility (coreboot source tree, util/cbmem) can print a coreboot specific table's content. Neither of these are guaranteed to be around (it would be possible to cloak things thoroughly), but it's likely that they are on coreboot, and pretty much non-existent otherwise. Patrick -- Google Germany GmbH, ABC-Str. 19, 20354 Hamburg Registergericht und -nummer: Hamburg, HRB 86891, Sitz der Gesellschaft: Hamburg Geschäftsführer: Graham Law, Christine Elizabeth Flores -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
Re: [coreboot] Finding whether the BIOS is coreboot or not
Hi, * Kevin Wilson wkev...@gmail.com [2015-07-18 10:03]: Is there a way, from a device running Linux, to which I have access to the command line, to know whether the BIOS is coreboot or not ? by some utility, or by some sysfs entry ? Yes, if you have dmidecode present: ctvdr:~# dmidecode -t bios | grep Vendor Vendor: coreboot Probably it might be possible to set it to something else, but that seems to be the default. @ndy signature.asc Description: Digital signature -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
Re: [coreboot] Finding whether the BIOS is coreboot or not
Hi, [ Please don't send an extra mail to me, I'm on the mailing list. And try to avoid TOFU. Thank you. ] * Kevin Wilson wkev...@gmail.com [2015-07-19 07:45]: Thanks for all the responses. Short questions: I saw. on my system:: cat /sys/class/dmi/id/bios_vendor coreboot Is it equivalent to dmidecode -t bios | grep Vendor Vendor: coreboot What I mean is: does dmidecode in fact read the /sys/class/dmi/id/bios_vendor entry? [...snip...] Seems so: ctvdr:~# cat /sys/class/dmi/id/bios_vendor coreboot Let's take a different example: erwin:~# dmidecode -t bios | grep Vendor Vendor: Award Software International, Inc. erwin:~# cat /sys/class/dmi/id/bios_vendor Award Software International, Inc. If you want to be sure, verify with the dmidecode source code. BTW: I found a shorter dmidecode command line: ctvdr:~# dmidecode -s bios-vendor coreboot @ndy -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
[coreboot] Finding whether the BIOS is coreboot or not
Hello, Is there a way, from a device running Linux, to which I have access to the command line, to know whether the BIOS is coreboot or not ? by some utility, or by some sysfs entry ? Regards, Kevin -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
Re: [coreboot] Finding whether the BIOS is coreboot or not
2015-07-18 9:03 GMT+02:00 Kevin Wilson wkev...@gmail.com: Is there a way, from a device running Linux, to which I have access to the command line, to know whether the BIOS is coreboot or not ? by some utility, or by some sysfs entry ? We usually have coreboot related vendor names for ACPI tables (eg. dsdt table id 'COREBOOT'). Those are visible early on in dmesg, I think. Also our cbmem utility (coreboot source tree, util/cbmem) can print a coreboot specific table's content. Neither of these are guaranteed to be around (it would be possible to cloak things thoroughly), but it's likely that they are on coreboot, and pretty much non-existent otherwise. Patrick -- Google Germany GmbH, ABC-Str. 19, 20354 Hamburg Registergericht und -nummer: Hamburg, HRB 86891, Sitz der Gesellschaft: Hamburg Geschäftsführer: Graham Law, Christine Elizabeth Flores -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
Re: [coreboot] Finding whether the BIOS is coreboot or not
My $.02 is to check dmidecode. Marc On Sat, Jul 18, 2015 at 10:11 AM ron minnich rminn...@gmail.com wrote: Could you also look for LBIO in the e and f segments? On Sat, Jul 18, 2015 at 12:34 AM Patrick Georgi pgeo...@google.com wrote: 2015-07-18 9:03 GMT+02:00 Kevin Wilson wkev...@gmail.com: Is there a way, from a device running Linux, to which I have access to the command line, to know whether the BIOS is coreboot or not ? by some utility, or by some sysfs entry ? We usually have coreboot related vendor names for ACPI tables (eg. dsdt table id 'COREBOOT'). Those are visible early on in dmesg, I think. Also our cbmem utility (coreboot source tree, util/cbmem) can print a coreboot specific table's content. Neither of these are guaranteed to be around (it would be possible to cloak things thoroughly), but it's likely that they are on coreboot, and pretty much non-existent otherwise. Patrick -- Google Germany GmbH, ABC-Str. 19, 20354 Hamburg Registergericht und -nummer: Hamburg, HRB 86891, Sitz der Gesellschaft: Hamburg Geschäftsführer: Graham Law, Christine Elizabeth Flores -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
Re: [coreboot] Finding whether the BIOS is coreboot or not
Hi, * Kevin Wilson wkev...@gmail.com [2015-07-18 10:03]: Is there a way, from a device running Linux, to which I have access to the command line, to know whether the BIOS is coreboot or not ? by some utility, or by some sysfs entry ? Yes, if you have dmidecode present: ctvdr:~# dmidecode -t bios | grep Vendor Vendor: coreboot Probably it might be possible to set it to something else, but that seems to be the default. @ndy -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
Re: [coreboot] Finding whether the BIOS is coreboot or not
Could you also look for LBIO in the e and f segments? On Sat, Jul 18, 2015 at 12:34 AM Patrick Georgi pgeo...@google.com wrote: 2015-07-18 9:03 GMT+02:00 Kevin Wilson wkev...@gmail.com: Is there a way, from a device running Linux, to which I have access to the command line, to know whether the BIOS is coreboot or not ? by some utility, or by some sysfs entry ? We usually have coreboot related vendor names for ACPI tables (eg. dsdt table id 'COREBOOT'). Those are visible early on in dmesg, I think. Also our cbmem utility (coreboot source tree, util/cbmem) can print a coreboot specific table's content. Neither of these are guaranteed to be around (it would be possible to cloak things thoroughly), but it's likely that they are on coreboot, and pretty much non-existent otherwise. Patrick -- Google Germany GmbH, ABC-Str. 19, 20354 Hamburg Registergericht und -nummer: Hamburg, HRB 86891, Sitz der Gesellschaft: Hamburg Geschäftsführer: Graham Law, Christine Elizabeth Flores -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
Re: [coreboot] Finding whether the BIOS is coreboot or not
Hi, Thanks for all the responses. Short questions: I saw. on my system:: cat /sys/class/dmi/id/bios_vendor coreboot Is it equivalent to dmidecode -t bios | grep Vendor Vendor: coreboot What I mean is: does dmidecode in fact read the /sys/class/dmi/id/bios_vendor entry? Regard, Kevin On Sat, Jul 18, 2015 at 11:14 PM, Andreas Kreuzinger a_coreb...@skater.priv.at wrote: Hi, * Kevin Wilson wkev...@gmail.com [2015-07-18 10:03]: Is there a way, from a device running Linux, to which I have access to the command line, to know whether the BIOS is coreboot or not ? by some utility, or by some sysfs entry ? Yes, if you have dmidecode present: ctvdr:~# dmidecode -t bios | grep Vendor Vendor: coreboot Probably it might be possible to set it to something else, but that seems to be the default. @ndy -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
