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| -rw-r--r-- | flashrom.8 | 27 |
1 files changed, 27 insertions, 0 deletions
@@ -8,6 +8,7 @@ flashrom \- detect, read, write, verify and erase flash chips [\fB\-c\fR <chipname>] \ [\fB\-l\fR <file>] [\fB\-i\fR <image>] [\fB\-p\fR <programmername>[:<parameters>]] + [\fB-o\fR <logfile>] .SH DESCRIPTION .B flashrom is a utility for detecting, reading, writing, verifying and erasing flash @@ -220,6 +221,13 @@ lists all supported programmers. .B "\-h, \-\-help" Show a help text and exit. .TP +.B "\-o, \-\-output <logfile>" +Save the full debug log to +.BR <logfile> . +If the file already exists, it will be overwritten. This is the recommended +way to gather logs from flashrom because they will be verbose even if the +on-screen messages are not verbose. +.TP .B "\-R, \-\-version" Show version information and exit. .SH PROGRAMMER SPECIFIC INFO @@ -697,6 +705,25 @@ syntax where is the Linux device node for your SPI controller. .sp Please note that the linux_spi driver only works on Linux. +.SH EXAMPLES +To back up and update your BIOS, run +.sp +.B flashrom -p internal -r backup.rom -o backuplog.txt +.br +.B flashrom -p internal -w newbios.rom -o writelog.txt +.sp +Please make sure to copy backup.rom to some external media before you try +to write. That makes offline recovery easier. +.br +If writing fails and flashrom complains about the chip being in an unknown +state, you can try to restore the backup by running +.sp +.B flashrom -p internal -w backup.rom -o restorelog.txt +.sp +If you encounter any problems, please contact us and supply +backuplog.txt, writelog.txt and restorelog.txt. See section +.B BUGS +for contact info. .SH EXIT STATUS flashrom exits with 0 on success, 1 on most failures but with 2 if /dev/mem (/dev/xsvc on Solaris) can not be opened and with 3 if a call to mmap() fails. |
