console [ttySZ0] enabled, bootconsole disabled ZPUINO: UART at 0x8800000, irq 1 brd: module loaded loop: module loaded Registering ZPUino SPI driver ZPUino: probing for SPI controller zpuino_spi zpuino_spi.0: master is unqueued, this is deprecated zpuino_spi zpuino_spi.0: at 0x0A800000 ZPUino. SPI controller initialized 00281000 mousedev: PS/2 mouse device common for all mice mmc_spi spi0.0: SD/MMC host mmc0, no DMA, cd polling Waiting for root device /dev/mmcblk0p1... mmc_spi spi0.0: setup: unsupported mode bits 4 mmc_spi spi0.0: can't change chip-select polarity mmc0: card lacks mandatory switch function, performance might suffer. mmc0: new SDHC card on SPI mmcblk0: mmc0:0000 SD 30.8 GiB mmcblk0: p1 VFS: Mounted root (ext2 filesystem) readonly on device 179:1. Freeing init memory: 64K (1000 - 11000) BusyBox v1.20.2 (2012-10-17 09:44:15 WEST) hush - the humble shell / # uname -a Linux (none) 3.4.0-uc0 #533 PREEMPT Wed Oct 17 19:04:33 WEST 2012 zpu GNU/Linux / #Alvie
Wednesday, October 17, 2012
Judge for yourselves
Hi guys,
just leaving this here, so you can judge for yourselves what's going on:
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Is SD card read-only?
ReplyDeletehttp://michael-peeters.blogspot.com/2009/02/fixing-readonly-sd-card-reader-in.html
Hi Jack,
ReplyDeleteThe card is simulated, and forced into read-only mode because I had no time to implement the SDHC (note - the card itself) write logic. When connected to a read SDHC card it will work as expected.
But at this point in boot, everything is read-only anyway, because we ought to check the filesystem consistency prior to remounting it read-write.
Alvie