Hi,
I'm hoping that someone has come across this problem before and can point
me in the right direction.
I'm trying to troubleshoot a BeagleBone Black with Debian 8 that appears to
have a filesystem corruption. The system has two partitions, a read-only
rootfs partition and a writable partition for essentially everything else.
When the system boots, U-Boot completes and hands control to the kernel,
which runs an fsck on the rootfs successfully, but then fails to run an
fsck on the writable parition. At that point the startup process appears to
simply hang. I cannot seem to break to a console prompt (or get to a login
prompt, obviously).
The best hypothesis I have so far is that some sort of power failure caused
a corruption, but I'd like to see if I can examine the "footprint" at all.
I've never seen a corruption where fsck can't be run at all. Usually fsck
can be run and the corruption can be examined and hopefully repaired.
My question is, why can't fsck be run on the partition at all? Can I
somehow break to the console prompt when the startup process hangs up?
Earlier in the process, I can interrupt U-Boot and run "mmc", "part", and
"ls" types of U-Boot commands to look at the partition in question - at
that level things appear to look OK. But obviously it can't tell why fsck
won't run on the partition.
Could there be anything else going on that I'm not thinking of?
Below is a log of the boot/startup process. Any light anyone can shed would
be very helpful.
Thanks for any help,
Dave
-------------------------------------------
U-Boot SPL 2016.11-00002-gab8be1c (Dec 07 2016 - 12:54:09)
Trying to boot from MMC2
U-Boot 2016.11-00002-gab8be1c (Dec 07 2016 - 12:54:09 -0600), Build:
jenkins-github_Bootloader-Builder-490
CPU : AM335X-GP rev 2.1
I2C: ready
DRAM: 512 MiB
Reset Source: Power-on reset has occurred.
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Using default environment
Board: BeagleBone Black
<ethaddr> not set. Validating first E-fuse MAC
Net: eth0: MII MODE
cpsw
Press SPACE to abort autoboot in 2 seconds
board_name=[A335BNLT] ...
board_rev=[AIA0] ...
Card did not respond to voltage select!
Card did not respond to voltage select!
Card did not respond to voltage select!
gpio: pin 56 (gpio 56) value is 0
gpio: pin 55 (gpio 55) value is 0
gpio: pin 54 (gpio 54) value is 0
gpio: pin 53 (gpio 53) value is 1
Card did not respond to voltage select!
Card did not respond to voltage select!
switch to partitions #0, OK
mmc1(part 0) is current device
Scanning mmc 1:1...
gpio: pin 56 (gpio 56) value is 0
gpio: pin 55 (gpio 55) value is 0
gpio: pin 54 (gpio 54) value is 0
gpio: pin 53 (gpio 53) value is 1
switch to partitions #0, OK
mmc1(part 0) is current device
gpio: pin 54 (gpio 54) value is 1
Checking for: /uEnv.txt ...
Checking for: /boot.scr ...
Checking for: /boot/boot.scr ...
Checking for: /boot/uEnv.txt ...
gpio: pin 55 (gpio 55) value is 1
1388 bytes read in 28 ms (47.9 KiB/s)
Loaded environment from /boot/uEnv.txt
Checking if uname_r is set in /boot/uEnv.txt...
gpio: pin 56 (gpio 56) value is 1
Running uname_boot ...
loading /boot/vmlinuz-4.4.36-ti-r72 ...
8646448 bytes read in 589 ms (14 MiB/s)
loading /boot/dtbs/4.4.36-ti-r72/am335x-abbbi.dtb ...
61725 bytes read in 39 ms (1.5 MiB/s)
loading /boot/initrd.img-4.4.36-ti-r72 ...
5231183 bytes read in 369 ms (13.5 MiB/s)
debug: [console=ttyO0,115200n8 bone_capemgr.enable_partno=BB-UART5,BB-I2C1
root=UUID=936d3d70-c3c4-4d5b-bb06-2d6d680ae95d ro rootfstype=ext4 rootwait
coherent_pool=1M quiet net.ifnames=0 cape_universal=enable] ...
debug: [bootz 0x82000000 0x88080000:4fd24f 0x88000000] ...
## Flattened Device Tree blob at 88000000
Booting using the fdt blob at 0x88000000
Loading Ramdisk to 8fb02000, end 8ffff24f ... OK
Loading Device Tree to 8faef000, end 8fb0111c ... OK
Starting kernel ...
[ 0.001350] clocksource_probe: no matching clocksources found
[ 2.075156] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[ 2.259213] omap_voltage_late_init: Voltage driver support not added
[ 2.270746] PM: Cannot get wkup_m3_ipc handle
[ 2.382235] bone_capemgr bone_capemgr: slot #0: No cape found
[ 2.426233] bone_capemgr bone_capemgr: slot #1: No cape found
[ 2.470229] bone_capemgr bone_capemgr: slot #2: No cape found
[ 2.514227] bone_capemgr bone_capemgr: slot #3: No cape found
Loading, please wait...
rootfs: clean, 78785/98304 files, 384993/393216 blocks
[ 12.471231] pinctrl-single 44e10800.pinmux: pin 44e108c0.0 already
requested by 481aa000.serial; cannot claim for 0-0039
[ 12.482304] pinctrl-single 44e10800.pinmux: pin-48 (0-0039) status -22
[ 12.488911] pinctrl-single 44e10800.pinmux: could not request pin 48
(44e108c0.0) from group adi_hdmi_bbbi_pins on device pinctrl-single
[ 12.501341] adv7511 0-0039: Error applying setting, reverse things back
[ 12.928105] pinctrl-single 44e10800.pinmux: pin 44e108c0.0 already
requested by 481aa000.serial; cannot claim for 0-0039
[ 12.939198] pinctrl-single 44e10800.pinmux: pin-48 (0-0039) status -22
[ 12.945814] pinctrl-single 44e10800.pinmux: could not request pin 48
(44e108c0.0) from group adi_hdmi_bbbi_pins on device pinctrl-single
[ 12.958243] adihdmi 0-0039: Error applying setting, reverse things back
[ 14.022183] EDID block is all zeroes
[ 14.038732] adihdmi_encoder_get_modes - 788 - No EDID
[ 14.279735] adihdmi_encoder_get_modes - 788 - No EDID
[FAILED] Failed to start File System Check on /dev/mmcblk1p2.
See 'systemctl status systemd-fsck@dev-mmcblk1p2.service' for details.
[DEPEND] Dependency failed for /var.
[DEPEND] Dependency failed for Load/Save Random Seed.
[DEPEND] Dependency failed for Update UTMP about System Runlevel Changes.
[DEPEND] Dependency failed for /root.
[DEPEND] Dependency failed for Local File Systems.
[DEPEND] Dependency failed for netfilter persistent configuration.
[DEPEND] Dependency failed for Emergency Shell.
[DEPEND] Dependency failed for Emergency Mode.
[DEPEND] Dependency failed for Update UTMP about System Boot/Shutdown.
[DEPEND] Dependency failed for Flush Journal to Persistent Storage.
[DEPEND] Dependency failed for /srv.
[DEPEND] Dependency failed for /media.
[DEPEND] Dependency failed for /home.
[DEPEND] Dependency failed for /var/local/swapfile.
[DEPEND] Dependency failed for Swap.
Starting Raise network interfaces...
Starting File System Check on /dev/mmcblk1p2...
[ OK ] Reached target Timers.
[ OK ] Closed Syslog Socket.
[ OK ] Reached target Login Prompts.
Starting Create Volatile Files and Directories...
[ OK ] Reached target Sockets.
[FAILED] Failed to start Create Volatile Files and Directories.
See 'systemctl status systemd-tmpfiles-setup.service' for details.
[FAILED] Failed to start File System Check on /dev/mmcblk1p2.
See 'systemctl status systemd-fsck@dev-mmcblk1p2.service' for details.
[DEPEND] Dependency failed for /var.
[DEPEND] Dependency failed for /root.
[ OK ] Started Raise network interfaces.
[ OK ] Reached target Network.
[ OK ] Reached target Network is Online.
(nothing appears after this; unable to break to a console prompt, etc.)
--
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