[discombulate]

I tried reinstalling the latest firmware and got the following relevant output:

<4>[    0.552558] Disabling lock debugging due to kernel taint
<4>[    0.552934] INFO:Loaded module /lib/modules/mxc_epdc_eink.ko  (10784 bytes)
<6>[    0.559970] imx_epdc_fb imx_epdc_fb: Found a video mode override (EBU)
<6>[    0.622806] mmc1: mmc_rescan_try_freq: trying to init card at 200000 Hz
<6>[    0.695448] mmc1: mmc_rescan_try_freq: trying to init card at 100000 Hz
<6>[    1.183040] add wake up source irq 104
<6>[    1.668611] Retrieved voltage control information
<6>[    2.253058] KERNEL: I pmic:fg battery id check::wario_battery_valid=1
<4>[    3.503730] INFO:Loaded module /lib/modules/mxc_epdc_fb.ko  (93428 bytes)
<4>[    3.778919] INFO:eink initialized... (486400 bytes)
<4>[    3.778959] INFO:DIAGS MODE
<4>[    6.791513] INFO:!!! Checking MBR /dev/mmcblk0 !!!!
<4>[    6.796691] INFO:partition 2, start sector is 987136
<4>[    6.796782] INFO:partition 3, start sector is 1118208
<4>[    6.796864] INFO:partition 4, start sector is 1249280
<4>[    6.796929] INFO:maximizing partition 6483968 sectors
<4>[    6.796975] INFO:*** Partition table verified for /dev/mmcblk0 ***
<4>[    6.798918] INFO:Setup loop device /dev/loop0 for /dev/mmcblk0p4 + 8192
<4>[    6.802671] INFO:Checking for updates... (auto-pilot mode)
<4>[    6.802931] INFO:Found update_kindle_5.12.2.2.bin
<4>[    6.803760]
<4>[    6.803954] INFO:Found bundle /mnt-us/update_kindle_5.12.2.2.bin
<4>[    6.803982] INFO:*** NORMAL MODE
<4>[    6.993298] *** CHECKING /mnt-us/update_kindle_5.12.2.2.bin ***
<4>[    7.869694] INFO:do_unbundle: filename=/mnt-us/update_kindle_5.12.2.2.bin, new_file=0x00015ac4
<4>[    7.882378] INFO:Device code matched (C6).
<6>[    7.890738] EXT3-fs (mmcblk0p1): error: can't find ext3 filesystem on dev mmcblk0p1.
<4>[    7.903076] ERROR:/dev/mmcblk0p1:error 22(22)
<4>[    7.903143] ERROR:Not able to read software version, problem with mounting rootfsERROR:do_unbundle: validate_version failed.
<4>[    7.903833] INFO:No uboot image found! skipping uboot installation.
<4>[    7.903888] ERROR:Could not unbundle /mnt-us/update_kindle_5.12.2.2.bin,error_code=12
<4>[    7.903917] INFO:removing /mnt-us/update_kindle_5.12.2.2.bin
<4>[    7.935713] ERROR:*** There was a problem in the updates!
<4>[    8.805396] INFO:UPDATE ERROR: 12
<4>[    8.806961] INFO:Rebooting ...
<4>[    8.816418] INFO:failure log is saved in: /mnt-us/update-failed.log

=== END ===
[   17.118969] imx2-wdt imx2-wdt.0: Device shutdown: Expect reboot!
[   17.126604] Power down.

I believe this suggests that mmcblk0p1 partition is broken. Where could I obtain flashable mmcblk0p1?