【已解决】3519上挂载SD卡/dev/mmcblk0p1只读的问题

本帖最后由 qn1540561804 于 2019-4-12 11:40 编辑

~ # mount -o rw /dev/mmcblk0p1 /media
~ # mount
/dev/mmcblk0p1 on /media type vfat (ro,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)

问题描述：上电，SD卡挂载成只读之后，
操作1. 卸载->挂载，只读；
操作2. 卸载->拔插SD卡->挂载，可读写；
操作3. 卸载->软重启->挂载，只读；
操作4. 操作2之后，卸载->软重启->挂载，可读写；
操作5. 卸载->断电->上电->挂载，只读；
操作6. 操作2之后，卸载->断电->上电->挂载，只读；

上电时候打印：
himci: mmc host probe
himci: mmc host probe
himci: mmc host probe
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
TCP: cubic registered
NET: Registered protocol family 10
NET: Registered protocol family 17
Registering SWP/SWPB emulation handler
mmc1: cannot verify signal voltage switch
himci: tuning mmc1: valid phase shift [9, 5] Final Phase 15
mmc1: new ultra high speed SDR104 SDHC card at address aaaa
mmcblk0: mmc1:aaaa SC32G 29.7 GiB (ro)
mmcblk0: p1

拔插SD卡打印
~ # himci: card disconnected!
mmc1: card aaaa removed
himci: card connected!
mmc1: cannot verify signal voltage switch
himci: tuning mmc1: valid phase shift [10, 5] Final Phase 15
mmc1: new ultra high speed SDR104 SDHC card at address aaaa
mmcblk0: mmc1:aaaa SC32G 29.7 GiB
mmcblk0: p1

求大神们帮忙，谢谢亲