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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/running-openadk.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/docs/running-openadk.txt b/docs/running-openadk.txt index dcfd7451d..d9fde48af 100644 --- a/docs/running-openadk.txt +++ b/docs/running-openadk.txt @@ -184,3 +184,24 @@ You can change the shell in +make menuconfig+ under +Runtime configuration+. Be aware of the fact that the bootup process might use some +mksh+ features to speedup the system start. When you change the shell for system +/bin/sh+ the slower startup is used as a fallback. + +analyzing logs +~~~~~~~~~~~~~~ + +Since embedded systems usually avoid writing continously on non-volatile storage +(to avoid waer-out of the storage device) there are no logfiles under /var/log and +/var itself is mapped onto a RAM based filesystem. + +Instead the syslog daemon logs into a ciruclar memory +buffer. The size of the memory buffer is by default 32KiB and can be changed in the +busybox configuration. + +To access the content of the buffer the +logread+ utility is used to dump the buffer. +To get a continous output of the logbuffer -f has to be added as option. + +--------------------- +Usage: logread [-fF] + +-f Output data as log grows +-F Same as -f, but dump buffer first +--------------------- |