2010/1/14 Wolfgang Denk <w...@denx.de> > Dear Arno Steffen, > > In message <804f0d21001140104o3543921cx2b4422fbc8a9...@mail.gmail.com> you > wrote: > > > > Ok, it normaly executes commands after each other. But in case the rootfs > is > > invalid in boots kernel and ends up with kernel panic which causes a > reboot. > > In this way the second command will not be executed > > bootcmd=run boot_fs1; run boot_fs2 > > Right, this method can only detect when the boot command fails, for > example because of corrupted images. It cannot handle situations where > the kernel crashes, or where the application does not start up > successfully. To handle such situations you have to use the bootcount > feature, usually combined with a hardware watchdog which will reset > your board in cases where it just hangs. > > > Bootcount is a great idea, but don't know right now how to do this. Also > it > > Hire an expert, then. > > > will stress the flash, as it has to change the environment every time it > > boots. > > No, this is wrong. Nothing neds to get written to flash when booting. > The boot counter is NOT stored in the environment, but in some > hardware register or other storage that is known not to change it's > value during a reset. > > > Although I add hush to my config file > > #define CONFIG_HUSH_PARSER 1 /* use "hush" command parser */ > > > > and it compiles hush.c to hush.o I get > > > > Unknown command 'if' > > Can you please provide the full log, including all your input and all > output? Please include the same (full input and output) for running > this command: > > => echo foo || echo bar > > Best regards, > > Wolfgang Denk > > -- > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de > After Goliath's defeat, giants ceased to command respect. > - Freeman Dyson >
Thanks for answer. My uboot is a 2008.10 (Mistral/TI EVM board) OMAP3 # echo foo || echo bar foo || echo bar OMAP3 # setenv check 'if imi $addr; then echo Image OK; else echo Image corrupted!!; fi' OMAP3 # run check Unknown command 'if' - try 'help' Unknown command 'then' - try 'help' Unknown command 'else' - try 'help' Unknown command 'fi' - try 'help' OMAP3 # The line: #define CONFIG_HUSH_PARSER 1 /* use "hush" command parser */ I put into /include/configs/omap3_evm.h Best regards Arno
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