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

[Simon Bolek]

Hi,

Well it is, as far as what
parted /dev/sda print
 says.

generated grub.cfg matches that with PARTUUID, so it looks fine.

menuentry "Linux" {
    search --no-floppy --fs-uuid e88ec2c7-3438-4fe3-9033-83eb81957875 --set
root
    linux /vmlinuz root=PARTUUID=8316255c-f839-43fa-b2c6-d83bbed80962
rw    quiet

}

However fdisks -l shows only /dev/sda1, which ist strange.

Is there something wrong with install.sh script?
Compared to FIDO, it is GPT, not MSDOS. But i did not touch anything there.
Maybe you can take a look at it?
http://git.yoctoproject.org/cgit.cgi/poky/plain/meta/recipes-core/initrdscripts/files/init-install.sh?h=jethro
It always checks the grub version, however in FIDO Grub was also 2.00, so I
do not get the IFs.

thank you!
Simon :-)


On Sat, Jul 23, 2016 at 4:52 PM, Khem Raj <raj.khem at gmail.com> wrote:

>
> > 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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