[HELP]Can not boot from NFS

michaellai · ‎05-11-2014

I want to boot Ubuntu 12.04 from NFS, here are the error messages:

IP-Config: Guessing netmask 255.255.255.0

IP-Config: Complete:

device=eth0, addr=192.168.1.2, mask=255.255.255.0, gw=255.255.255.255,

host=192.168.1.2, domain=, nis-domain=(none),

bootserver=255.255.255.255, rootserver=192.168.1.18, rootpath=

VFS: Mounted root (nfs filesystem) on device 0:12.

Freeing init memory: 212K

init: Unable to mount /dev filesystem: No such device

init: Unable to create device: /dev/ptmx

init: Cannot create directory: /dev/pts

init: Unable to create device: /dev/null

init: Unable to create device: /dev/tty

init: Unable to create device: /dev/console

init: Unable to create device: /dev/kmsg

Here is the content of /etc/exports:

# /etc/exports: the access control list for filesystems which may be exported

# to NFS clients. See exports(5).

#

# Example for NFSv2 and NFSv3:

# /srv/homes hostname1(rw,sync,no_subtree_check) hostname2(ro,sync,no_subtree_check,no_root_squash)

#

/srv/nfs *(rw,sync,no_subtree_check)

# Example for NFSv4:

# /srv/nfs4 gss/krb5i(rw,sync,fsid=0,crossmnt,no_subtree_check)

# /srv/nfs4/homes gss/krb5i(rw,sync,no_subtree_check)

#

The ubuntu 12.04 rootfs file 'oneiric.tgz' is tested good when I use Mfgtools to burn it to MMC directly, and I extract it to /srv/nfs, what's wrong?

leoschwab · ‎05-12-2014

敏赖 wrote:

Here is the content of /etc/exports:

# /etc/exports: the access control list for filesystems which may be exported
#  to NFS clients.  See exports(5).
#
# Example for NFSv2 and NFSv3:
# /srv/homes      hostname1(rw,sync,no_subtree_check) hostname2(ro,sync,no_subtree_check,no_root_squash)
#
/srv/nfs *(rw,sync,no_subtree_check)
# Example for NFSv4:
# /srv/nfs4        gss/krb5i(rw,sync,fsid=0,crossmnt,no_subtree_check)
# /srv/nfs4/homes  gss/krb5i(rw,sync,no_subtree_check)
#

The ubuntu 12.04 rootfs file 'oneiric.tgz' is tested good when I use Mfgtools to burn it to MMC directly, and I extract it to /srv/nfs, what's wrong?

Add no_root_squash to the mount options for /srv/nfs. Also be sure you extract the .tgz file as root so that all ownerships and permissions are set correctly.

liyu1 · ‎07-17-2014

Hello:

Please tell me where to download ubuntu 12.04 mirror, I can only be downloaded to 11.10 Mirror ?

Thanks!

Wlodek_D_ · ‎05-12-2014

Hello,

Thank you for your post, however please consider moving it to the right community place (e.g. i.MX Community or other space, respectively to your target device ) to get it visible for active members.

For details please see general advice Where to post a Discussion?

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