Yes, get the “pre-mount” prompt, but fstab is empty as seen below.
[ 9.635227] sd 1:0:0:1: [sdb] Write Protect is off
[ 9.645244] sd 1:0:0:1: [sdb] No Caching mode page found
[ 9.650639] sd 1:0:0:1: [sdb] Assuming drive cache: write through
[ 9.659845] sd 1:0:0:0: [sda] No Caching mode page found
[ 9.665206] sd 1:0:0:0: [sda] Assuming drive cache: write through
[ 9.680219] sda: sda1 sda2 sda3 < sda5 >
[ 9.691620] sd 1:0:0:1: [sdb] No Caching mode page found
[ 9.697014] sd 1:0:0:1: [sdb] Assuming drive cache: write through
[ 9.709711] sd 1:0:0:0: [sda] No Caching mode page found
[ 9.715070] sd 1:0:0:0: [sda] Assuming drive cache: write through
[ 9.721238] sd 1:0:0:0: [sda] Attached SCSI removable disk
[ 9.727862] sdb: sdb1 sdb4
[ 9.742965] sd 1:0:0:1: [sdb] No Caching mode page found
[ 9.748357] sd 1:0:0:1: [sdb] Assuming drive cache: write through
[ 9.754487] sd 1:0:0:1: [sdb] Attached SCSI removable disk
pre-mount:/# ls /etc
cmdline.d group ld.so.conf mtab sysctl.d
conf.d hostid ld.so.conf.d os-release systemd
e2fsck.conf hostname machine-id passwd udev
fstab.empty initrd-release modprobe.d profile virc
fuse.conf ld.so.cache modules-load.d sysctl.conf zfs
pre-mount:/# cat /etc/fstab.empty
pre-mount:/#
> On Nov 3, 2015, at 7:17 PM, Gordan Bobic <[email protected]> wrote:
>
> On 2015-11-03 03:12, ioan stan wrote:
>> I was suspecting that fstab needs changes but I couldn't mount the
>> root partition. Mount command would not work, how would I mount
>> /dev/sdc1 to /mnt for editing? It seems zfs or zpool would help but
>> not sure.
>
> You don't need to modify the image before inserting the card into the
> device. When the boot fails it will drop you to the diagnostic
> prompt. Look carefully, it was obscured in your pasted log by kernel
> messages from drivers still being loaded.
>
> Hit enter a couple of times and you'll see it. At that point the
> rootfs is already mounted and ready to go, just do:
>
> vi /etc/fstab and fix the problem (or comment out the line with /boot)
>
> then do "reboot" and it should come up OK. You can then fix fstab
> properly if you just commented out /boot.
>
>> Another question, you're resizing partition with fdisk, parted would
>> not work? I did find an article about resizing with fdisk
>> https://access.redhat.com/articles/1190213 [2]
>
> I am less familiar with parted, I tend to use fdisk (for MBR) and
> gdisk (for GPT). If you are more familiar with parted, go for it,
> but bear in mind that uboot on *Plugs doesn't support GPT so it is
> essential you keep the partition table in MBR format or it won't
> work.
>
> Gordan
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