USB Flash boot fail if "pkeys=de"

September 14, 2009 — BarryK

It has been reported that booting from a USB Flash drive with "pkeys=de" the boot failed. Without the pkeys parameter it works.

I found the problem. This is the fixed code in the 'init' script:

  vfat) #w476

   ####TODO#### need to get rid of the old 2-letter keyboard layout, so PKEYS boot

   # param works for the main kbd layouts.

   #would like to introduce codepage and iocharset, maybe as kernel params...

   #ex: codepage=850 iocharset=iso8859-2 ...no, already have 'pkeys'

   OUT_PARAM='shortname=mixed,quiet'

   [ "$MNT_O" ] && OUT_PARAM="${OUT_PARAM},${MNT_O}"

   if [ "$PKEYS" ];then

    case $PKEYS in

     de|be|br|dk|es|fi|fr|it|no|se|pt)

      modprobe nls_cp850 #v426

      OUT_PARAM="$OUT_PARAM"',codepage=850'

     ;;

	 slovene|croat|hu101|hu|cz-lat2|pl|ro_win)

	  modprobe nls_cp852 #v426

	  modprobe nls_iso8859-2 #v426

	  OUT_PARAM="$OUT_PARAM"',codepage=852,iocharset=iso8859-2'

	 ;;

    esac

   fi

   mount -t $MNT_T -o $OUT_PARAM $MNT_DEV $MNT_DIR

  ;;

...you can see where I have inserted explicit modprobe commands. Those modules should have loaded automatically, I don't know why they don't.

Comments

Why the modules aren't loaded
Username: Dougal
You're using a zdrv. It's the same bug that makes you need to "fetch" the drm modules for Xorg (and modules for filesystems that aren't built into the kernel).

No zdrv
Username: BarryK
"I'm not that dumb. No, there is no zdrv. The only zdrv in 4.3beta3 is some extra modem drivers. The initrd is setup in the normal way with a small selection of modules. 'depmod' was run when the initrd was created, so that modprobe and the kernel can locate and load the modules. In other words, a normal environment, and I expected the nls_* modules to auto-load. Besides, the whole "feching" concept is no longer used for a zdrv. A zdrv now gets loaded as a aufs layer at bootup and depmod is run, so all modules are accessible without needing to be fetched. A lot has changed with the Woof-built puppies!

Tags: woof