zyxel nas540 bootloop after unsuccesfull debian kernel upgrade

greenwitch

I had bad flash of newer kernel on Debian.

I had log like following:

booting kernel of type uimage from /dev/nand0.kernel2.bb
   Verifying Checksum ... Bad Data CRC
 Failed.
booting kernel of type uimage from /dev/nand0.kernel1.bb
ERROR: out of memory

I have managed to upload new kernel.

Now I dont know why I am able to boot from second kernel. From kernel 1 I have this issue:

booting kernel of type uimage from /dev/nand0.kernel1.bb

   Verifying Checksum ... Bad Data CRC
 Failed.

From kernel 2:

 [   20.364539] VFS: Cannot open root device "ubi0:rootfs" or unknown-block(0,0)
[   20.371618] Please append a correct "root=" boot option; here are the available partitions:
[   20.380009] 1f00             256 mtdblock0  (driver?)
[   20.385089] 1f01             512 mtdblock1  (driver?)
[   20.390173] 1f02             256 mtdblock2  (driver?)
[   20.395252] 1f03           10240 mtdblock3  (driver?)
[   20.400336] 1f04           10240 mtdblock4  (driver?)
[   20.405415] 1f05          112640 mtdblock5  (driver?)
[   20.410498] 1f06           10240 mtdblock6  (driver?)
[   20.415576] 1f07          112640 mtdblock7  (driver?)
[   20.420660] 1f08            6144 mtdblock8  (driver?)
[   20.425738] 0800      2930266584 sda  driver: sd
[   20.430389]   0801      2930265088 sda1 81ae083b-429a-4768-9f2c-a38c8ddeb287
[   20.437478] 0810      2930266584 sdb  driver: sd
[   20.442122]   0811      2930265088 sdb1 eceb1340-7ebb-477c-8594-46d3d3ca0f4c
[   20.449210] 0830      1953514584 sdd  driver: sd
[   20.453853]   0831          514048 sdd1 00000000-0000-0000-0000-000000000000
[   20.460940]   0832      1952997952 sdd2 00000000-0000-0000-0000-000000000000
[   20.468025] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

when kernel two is booting default commandline is like following:

commandline: console=ttyS0,115200n8, init=/etc/preinit pcie_gen1_only=yes  mac_addr=,, ip=dhcp root=ubi0:rootfs ubi.mtd=2,2048 rootfstype=ubifs rw noinitrd mtdparts=spi0.0:256k(uloader)ro,512k(barebox)ro,256k(env);comcertonand:10M(config),10M(kernel1),110M(rootfs1),10M(kernel2),110M(rootfs2),-(reserved) usb3_internal_clk=yes
arch_number: 1094

my printenv:

Barebox-C2K >/ printenv
locals:
PATH=/env/bin
ip=dhcp
kernel_loc=nand
rootfs_loc=nand
uloaderimage=microloader-c2kevm.bin
bareboximage=barebox-c2kevm.bin
mfg_kernel_img=uImage_MFG
mfg_rootfs_img=rootfs_ubi.img_MFG
rootfs_type=ubifs
rootfsimage=root.ubifs-128k
kernelimage_type=uimage
kernelimage=uImage
spi_parts=256k(uloader)ro,512k(barebox)ro,256k(env)
spi_device=spi0.0
nand_device=comcertonand
nand_parts=10M(config),10M(kernel1),110M(rootfs1),10M(kernel2),110M(rootfs2),-(reserved)
rootfs_mtdblock_nand=1
autoboot_timeout=3
usb3_internal_clk=yes
bootargs=console=ttyS0,115200n8, init=/etc/preinit pcie_gen1_only=yes  mac_addr=,,
next_bootfrom=1
curr_bootfrom=1
kernel_mtd_1=4
sysimg_mtd_1=5
kernel_mtd_2=6
sysimg_mtd_2=7
MODEL_ID=B103
globals:

I am not able to saveenv.

after every boot

Can somebody help me?

I think I need proper bootsargs

When I boot from command line:

bootm /dev/nand0.kernel2.bb

I can boot with argument I provide in bootargs

Adam

greenwitch

bootargs="console=ttyS0,115200n8 pcie_gen1_only=yes usb3_internal_clk=yes init=/sbin/init root=/dev/sda2 rootfstype=ext4 rootdelay=5 panic=5"
saveenv

bootm /dev/nand0.kernel2.bb

magic happens. But NAS is still rebooting itself after some time. But we have progress and I boot to debian. In parallel of course old disk with debian crashed... not easy

Mijzelf

How long is 'after some time'?

Can you remember if the flash partitions were accessible from Debian?