[ 2.065390] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
your SD card has been locked,check your SD card and unlock it. ------------------ Best regards Ewin 365015...@qq.com ------------------ Original ------------------ From: "Martin Fox"<mar...@martinfox.com>; Date: Tue, Apr 3, 2012 01:19 AM To: "angstrom-distro-users"<angstrom-distro-users@linuxtogo.org>; Subject: [Angstrom-distro-users] Narcissus images for Beaglebone DOA? For the last week I've been trying to get Narcissus to kick out a bootable image for the Beaglebone A5. If I ask Narcissus for a systemd image and burn it to an SD card the boot freezes at this point: [ 1.761217] mux: Failed to setup hwmod io irq -22 [ 1.766820] omap2_set_init_voltage: unable to get clk dpll1_ck [ 1.772936] omap2_set_init_voltage: unable to set vdd_mpu_iva [ 1.778937] omap2_set_init_voltage: unable to get clk l3_ick [ 1.784849] omap2_set_init_voltage: unable to set vdd_core [ 1.790580] Power Management for AM33XX family [ 1.798736] registered taskstats version 1 [ 1.803335] Detected MACID=d4:94:a1:89:da:75 [ 1.808713] omap_rtc omap_rtc: setting system clock to 2012-04-02 17:02:04 UT C (1333386124) [ 1.818377] Waiting for root device /dev/mmcblk0p2... [ 1.914392] mmc0: host does not support reading read-only switch. assuming wr ite-enable. [ 1.927681] mmc0: new high speed SDHC card at address aaaa [ 1.933910] mmcblk0: mmc0:aaaa SU04G 3.69 GiB [ 1.941937] mmcblk0: p1 p2 [ 2.056827] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. O pts: (null) [ 2.065390] VFS: Mounted root (ext4 filesystem) readonly on device 179:2. [ 2.078837] devtmpfs: mounted [ 2.082292] Freeing init memory: 220K If I ask Narcissus for a sysvinit image the boot gets past this point but cannot actually read files off the rootfs and begins throwing errors because it can't read anything from /etc. Eventually I end up with a BeagleBone login prompt but I can't actually login (unless there's some trick to logging in without a rootfs that I just haven't learned.) The same SD card and card-burning procedure works fine for the demo systemd and Cloud9 images. But performing the same steps with a Narcissus build always yields an image that fails on way or another when mounting the root filesystem. Any pointers? Known problem? Thanks, Martin _______________________________________________ Angstrom-distro-users mailing list Angstrom-distro-users@linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-users _______________________________________________ Angstrom-distro-users mailing list Angstrom-distro-users@linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-users