[yocto] [genericx86-jethro] core-image-sato - VFS: Cannot open root device "PARTUUID=8316.." or unknown-block(0, 0): error -6

[Khem Raj]

> On Jul 23, 2016, at 5:25 AM, Simon Bolek <simon.bolek at googlemail.com> wrote:
> 
> Hello!
> 
> I am trying to install genericx86 core-image-sato on a atom-pc device with 80GB Intel SSD drive.
> I have created an image with
> bitbake core-image-sato
> without changing anything in the kernel via menuconfig, etc.
> 
> ps. after installation I had to set /dev/sda1 to bootable with disk

it seems your rootfs is on /dev/sda3 can you check kernel parameters what is it passing for root=

> 
> After installation I have got this ugly error while booting the device. PLEASE HELP ME!
> 
> 
> "...
> VFS: Cannot open root device "PARTUUID=8316.." or unknown-block(0,0): error -6
> Pease append a correct "root=" boot option; here are the available partitions:
> 0100 4096 ram0 (driver?)
> ...
> 010f 4096 ram15 (driver?)
> ..."
> 
> 
> I noticed that install.sh script is creating GPT
> parted ${device} mktable gpt
> not MSDOS as in previous yocto versions, e.g. fido.
> 
> Any hint is more than welcome. The device will just not boot :((((
> 
> Here are some details about the device:
> 
> 
> +++
> blkid says:
> /dev/sda2: UUID="e88ec2c7-3438-4fe3-9033-83eb81957875" TYPE="ext3" PARTLABEL="boot" PARTUUID="57f43ab0-6e30-4721-81e2-c565f6c184c8"
> /dev/sda3: UUID="cbb77742-c9fe-4f19-85d7-399af99c3aa8" TYPE="ext3" PARTLABEL="root" PARTUUID="8316255c-f839-43fa-b2c6-d83bbed80962"
> /dev/sda4: TYPE="swap" PARTLABEL="swap" PARTUUID="15ddbd73-15b3-40a8-97e7-6377048a79eb"
> /dev/sdb: SEC_TYPE="msdos" LABEL="boot" UUID="3C80-C1D7" TYPE="vfat"
> /dev/sda1: PARTLABEL="bios_boot" PARTUUID="11cf26d2-2333-4c5b-a876-59d65929085f"
> 
> +++
> /etc/fstab says
> # stock fstab - you probably want to override this with a machine specific one
> 
> /dev/root            /                    auto       defaults              1  1
> proc                 /proc                proc       defaults              0  0
> devpts               /dev/pts             devpts     mode=0620,gid=5       0  0
> tmpfs                /run                 tmpfs      mode=0755,nodev,nosuid,strictatime 0  0
> tmpfs                /var/volatile        tmpfs      defaults              0  0
> 
> # uncomment this if your device has a SD/MMC/Transflash slot
> #/dev/mmcblk0p1       /media/card          auto       defaults,sync,noauto  0  0
> 
> /dev/sda2         /                      ext3         rw                    0  1
> /dev/disk/by-partuuid/15ddbd73-15b3-40a8-97e7-6377048a79eb                swap             swap       defaults              0  0
> UUID=e88ec2c7-3438-4fe3-9033-83eb81957875              /boot            ext3       defaults              1  2
> 
> 
> +++
> fdisk -l says
> Disk /dev/sda: 80.0 GB, 80026361856 bytes
> 255 heads, 63 sectors/track, 9729 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> 
>    Device Boot      Start         End      Blocks  Id System
> /dev/sda1   *           1        9730    78150743+ ee EFI GPT
> 
> +++
> parted /dev/sda says
> Model: ATA INTEL SSDSA2M080 (scsi)
> Disk /dev/sda: 80.0GB
> Sector size (logical/physical): 512B/512B
> Partition Table: gpt
> Disk Flags: pmbr_boot
> 
> Number  Start   End     Size    File system     Name       Flags
>  1      1049kB  2097kB  1049kB                  bios_boot  bios_grub
>  2      2097kB  19.9MB  17.8MB  ext3            boot
>  3      22.0MB  76.0GB  76.0GB  ext3            root
>  4      76.0GB  80.0GB  4001MB  linux-swap(v1)  swap
> 
> +++
> lspci says
> Device:    00:1f.2
> Class:    IDE interface
> Vendor:    Intel Corporation
> Device:    NM10/ICH7 Family SATA Controller [IDE mode]
> SVendor:    Intel Corporation
> SDevice:    Device 464c
> Rev:    01
> ProgIf:    8a
> Driver:    ata_piix
> Module:    ata_piix
> 
> 
> thank you
> Simon :-)
> 
> 
> 

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