odroid emmc / sd 우선권

emmc만 설치

$ dmesg | grep -i mmc [    0.000000] Kernel command line: console=tty1 console=ttySAC1,115200 mem=2047M console=tty1 console=ttySAC1,115200n8 root=/dev/mmcblk0p2 rootwait ro mem=2047M [    0.220869] LDO4 VDDQ_MMC2_2V8: 2800 mV [    0.222273] LDO5 VDDQ_MMC1_1V8: 1800 mV [    0.241058] vddq_emmc_1V8: 1800 <--> 3000 mV at 1800 mV [    0.243880] vddf_emmc_2V85: 2850 mV [    2.634026] s3c-sdhci exynos4-sdhci.2: clock source 2: mmc_busclk.2 (440000000 Hz) [    2.634090] mmc0: no vqmmc regulator found [    2.634098] mmc0: no vmmc regulator found [    2.771135] mmc0: SDHCI controller on samsung-hsmmc [exynos4-sdhci.2] using ADMA [    2.785178] dw_mmc dw_mmc: Using internal DMA controller. [    2.821138] DWMMC: Div 2 = 130 [    2.821165] dw_mmc dw_mmc: Version ID is 240a [    2.821172] dw_mmc dw_mmc: DW MMC controller at irq 109, 32 bit host data width, 128 deep fifo [    2.878679] mmc_host mmc1: Bus speed (slot 0) = 104000000Hz (slot req 400000Hz, actual 400000HZ div = 130) [    2.942993] mmc1: BKOPS_EN bit is not set [    2.944129] DWMMC: Div 2 = 1 [    2.944138] mmc_host mmc1: Bus speed (slot 0) = 104000000Hz (slot req 52000000Hz, actual 52000000HZ div = 1) [    2.944535] mmc1: new high speed DDR MMC card at address 0001 [    2.944855] mmcblk0: mmc1:0001 008G92 7.28 GiB [    2.945022] mmcblk0boot0: mmc1:0001 008G92 partition 1 4.00 MiB [    2.945191] mmcblk0boot1: mmc1:0001 008G92 partition 2 4.00 MiB [    2.945348] mmcblk0rpmb: mmc1:0001 008G92 partition 3 512 KiB [    2.946209]  mmcblk0: p1 p2 [    2.947708]  mmcblk0boot1: unknown partition table [    2.948758]  mmcblk0boot0: unknown partition table [    3.314930] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null) [    3.897127] EXT4-fs (mmcblk0p2): re-mounted. Opts: errors=remount-ro $ mount /dev/mmcblk0p2 on / type ext4 (rw,noatime,nodiratime,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/cgroup type tmpfs (rw) none on /sys/kernel/debug type debugfs (rw) udev on /dev type devtmpfs (rw,mode=0755) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) tmpfs on /tmp type tmpfs (rw,nosuid,nodev,mode=1777) tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) none on /run/shm type tmpfs (rw,nosuid,nodev) none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755) /dev/mmcblk0p1 on /boot type vfat (rw,nosuid,nodev,flush,umask=000) systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd) gvfsd-fuse on /run/user/105/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=lightdm)

emmc + sd

$ dmesg | grep -i mmc [    0.000000] Kernel command line: console=tty1 console=ttySAC1,115200 mem=2047M console=tty1 console=ttySAC1,115200n8 root=/dev/mmcblk0p2 rootwait ro mem=2047M [    0.220690] LDO4 VDDQ_MMC2_2V8: 2800 mV [    0.222102] LDO5 VDDQ_MMC1_1V8: 1800 mV [    0.240017] vddq_emmc_1V8: 1800 <--> 3000 mV at 1800 mV [    0.242803] vddf_emmc_2V85: 2850 mV [    2.647631] s3c-sdhci exynos4-sdhci.2: clock source 2: mmc_busclk.2 (440000000 Hz) [    2.647693] mmc0: no vqmmc regulator found [    2.647701] mmc0: no vmmc regulator found [    2.789691] mmc0: SDHCI controller on samsung-hsmmc [exynos4-sdhci.2] using ADMA [    2.797797] dw_mmc dw_mmc: Using internal DMA controller. [    2.829744] dw_mmc dw_mmc: Version ID is 240a [    2.832713] mmc0: new high speed SDHC card at address aaaa [    2.833008] mmcblk0: mmc0:aaaa SU16G 14.8 GiB [    2.834180]  mmcblk0: p1 p2 [    2.834691] DWMMC: Div 2 = 130 [    2.834701] mmc_host mmc1: Bus speed (slot 0) = 104000000Hz (slot req 400000Hz, actual 400000HZ div = 130) [    2.880667] dw_mmc dw_mmc: DW MMC controller at irq 109, 32 bit host data width, 128 deep fifo [    2.936544] mmc1: BKOPS_EN bit is not set [    2.941863] DWMMC: Div 2 = 1 [    2.945985] mmc_host mmc1: Bus speed (slot 0) = 104000000Hz (slot req 52000000Hz, actual 52000000HZ div = 1) [    2.954911] mmc1: new high speed DDR MMC card at address 0001 [    2.955279] mmcblk1: mmc1:0001 008G92 7.28 GiB [    2.955453] mmcblk1boot0: mmc1:0001 008G92 partition 1 4.00 MiB [    2.955615] mmcblk1boot1: mmc1:0001 008G92 partition 2 4.00 MiB [    2.955785] mmcblk1rpmb: mmc1:0001 008G92 partition 3 512 KiB [    2.956597]  mmcblk1: p1 p2 [    2.958141]  mmcblk1boot1: unknown partition table [    2.959250]  mmcblk1boot0: unknown partition table [    3.457432] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null) [    5.307527] EXT4-fs (mmcblk0p2): re-mounted. Opts: errors=remount-ro  $ mount /dev/mmcblk0p2 on / type ext4 (rw,noatime,nodiratime,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/cgroup type tmpfs (rw) none on /sys/kernel/debug type debugfs (rw) udev on /dev type devtmpfs (rw,mode=0755) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) tmpfs on /tmp type tmpfs (rw,nosuid,nodev,mode=1777) tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) none on /run/shm type tmpfs (rw,nosuid,nodev) none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755) /dev/mmcblk0p1 on /media/boot type vfat (rw,nosuid,nodev,flush,umask=000) systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd) gvfsd-fuse on /run/user/1001/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=odroid) /dev/mmcblk1p1 on /media/odroid/BOOT type vfat (rw,nosuid,nodev,uid=1001,gid=1001,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks2)

음... sd보다 emmc가 우선되는거 아니었나?

둘다 꽂고 하니까 sd가 우선으로 켜지네?

+

U/U2/U3는 부트 방법을 선택할 방법이 없으며, 만약  eMMC를 처음 시도하고 eMMC가 찾아지지 않으면  SDCard로 부팅을 시도한다?

엥?!?!? 말이랑 결과랑 다른데?

ODROID-U/U2/U3

On ODROID-U/U2/U3 There's no method to select the boot media. It will attempt first a eMMC boot if eMMC isn't found it will attempt the SDCard Boot

[링크 : http://odroid.com/dokuwiki/doku.php?id=en:exynos4412bootsequence]

+

2016.10.09

암만해도 희한하게.. 왜 sd 카드가 mmcblk0으로 잡히고 eMMC가 mmcblk1으로 잡히지?

그래도 포맷을 완전히 하고 나서 켜니 켜지긴 하네.. 저번에는 머가 문제였지?

$ dmesg | grep mmcblk [    2.833262] mmcblk0: mmc0:0007 SL16G 14.4 GiB [    2.838533]  mmcblk0: p1 [    2.931688] mmcblk1: mmc1:0001 008G92 7.28 GiB [    2.931856] mmcblk1boot0: mmc1:0001 008G92 partition 1 4.00 MiB [    2.932050] mmcblk1boot1: mmc1:0001 008G92 partition 2 4.00 MiB [    2.932236] mmcblk1rpmb: mmc1:0001 008G92 partition 3 512 KiB [    2.933152]  mmcblk1: p1 p2 [    2.934582]  mmcblk1boot1: unknown partition table [    2.935609]  mmcblk1boot0: unknown partition table [    3.350821] EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null) [    4.036336] EXT4-fs (mmcblk1p2): re-mounted. Opts: errors=remount-ro