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Original question:

SK-AM62: My modules are not load !

SK-AM62: Problem mounting mmcblk0p1

hao teng
Intellectual 360 points
Part Number: SK-AM62

Hi

I did not implement mounting mmcblk0p1 in/run/media, similar to the one in ti-evm, in my own rootfs. I did not find any mounting when checking the fstab, but when checking the mounting situation in the mtab of ti-evm, it is shown in the figure. Can you tell me how to make the specific implementation of mounting in ti-evm work

thanks.

  • 0
    TI__Guru 71451 points

    Hello,

    This is done with the udev rules

    /tmp/fs
❯ rg -i mmcblk etc/udev lib/udev 2> /dev/null
lib/udev/rules.d/60-persistent-storage.rules
10:KERNEL!="loop*|mmcblk*[0-9]|msblk*[0-9]|mspblk*[0-9]|nvme*|sd*|sr*|vd*|xvd*|bcache*|cciss*|dasd*|ubd*|ubi*|scm*|pmem*|nbd*|zd*", GOTO="persistent_storage_end"
79:KERNEL=="mmcblk[0-9]", SUBSYSTEMS=="mmc", ATTRS{serial}=="?*", ENV{ID_SERIAL}="$attr{serial}"
80:KERNEL=="mmcblk[0-9]", SUBSYSTEMS=="mmc", ATTRS{name}=="?*", ENV{ID_NAME}="$attr{name}"
81:KERNEL=="mmcblk[0-9]", ENV{ID_NAME}=="?*", ENV{ID_SERIAL}=="?*", SYMLINK+="disk/by-id/mmc-$env{ID_NAME}_$env{ID_SERIAL}"
82:KERNEL=="mmcblk[0-9]p[0-9]*", ENV{ID_NAME}=="?*", ENV{ID_SERIAL}=="?*", SYMLINK+="disk/by-id/mmc-$env{ID_NAME}_$env{ID_SERIAL}-part%n"
91:KERNEL=="mmcblk[0-9]boot[0-9]", ENV{DEVTYPE}=="disk", ENV{ID_PATH}=="?*", SYMLINK+="disk/by-path/$env{ID_PATH}-boot%n"
92:KERNEL!="mmcblk[0-9]boot[0-9]", ENV{DEVTYPE}=="disk", ENV{ID_PATH}=="?*", SYMLINK+="disk/by-path/$env{ID_PATH}"
95:KERNEL!="mmcblk[0-9]boot[0-9]", ENV{DEVTYPE}=="disk", ENV{ID_PATH_ATA_COMPAT}=="?*", SYMLINK+="disk/by-path/$env{ID_PATH_ATA_COMPAT}"
110:KERNEL!="sr*|mmcblk[0-9]boot[0-9]", IMPORT{builtin}="blkid"

lib/udev/rules.d/60-block.rules
12:  KERNEL=="loop*|mmcblk*[0-9]|msblk*[0-9]|mspblk*[0-9]|nvme*|sd*|vd*|xvd*|bcache*|cciss*|dasd*|ubd*|ubi*|scm*|pmem*|nbd*|zd*", \

etc/udev/rules.d/local.rules
23:ACTION=="add", KERNEL=="mmcblk[0-9]p[0-9]", SUBSYSTEM=="block", RUN+="/etc/udev/scripts/mount.sh"
24:ACTION=="remove", KERNEL=="mmcblk[0-9]p[0-9]", SUBSYSTEM=="block", RUN+="/etc/udev/scripts/mount.sh"

    Regards,

    Prashant