Hello Skylar,
Skylar Thompsonさん:
> end up. The problem is that about 75% of the time I boot a diskless
> node, it hangs between when the init scripts complete, and when the init
> process spawns a login prompt. Rebooting several times gets a node all
> the way to the init prompt.
Just to make sure, your linuxrc (or the init in your intramfs/initrd)
executes,
- mount all branches
- mount aufs
- "mount -move" all branches
- chroot or switch_root and executes the init under aufs
- and stopped
Since your wrote "the init scripts complete", I guess some messages
about starting daemons were displayed on your console expectedly.
Are you sure that ALL init procedures (instead of linuxrc in initramfs)
are processed? And only the last prompt was not displayed?
> This is a stock Linux kernel with only aufs applied. I've also applied
> the lhash, splice, sec_perm, and ksize patches. I also use this same
> setup to provide diskless nodes with just a RAM disk (no NFS), and this
> works fine, so I suspect it's an NFS problem.
According to your config.gz, you set CONFIG_AUFS=y so you don't need
the sec_perm patch. And the ksize patch is unnecessary too. It is for
linux-2.6.21 and earlier.
----------------------------------------------------------------------
> b...@bccd-ng1:/diskless/clients/10.4.0.112/tmp$ cat mounts.txt
:::
> 10.4.0.1:/ /root nfs
> rw,vers=3,rsize=65536,wsize=65536,namlen=255,hard,nointr,nolock,proto=tcp,timeo=7,retrans=10,sec=sys,addr=10.4.0.1
> 0 0
> 10.4.0.1:/diskless/bccd /root/diskless/bccd nfs
> rw,vers=3,rsize=65536,wsize=65536,namlen=255,hard,nointr,nolock,proto=tcp,timeo=7,retrans=3,sec=sys,addr=10.4.0.1
> 0 0
> 10.4.0.1:/diskless/clients /root/diskless/clients nfs
> rw,vers=3,rsize=65536,wsize=65536,namlen=255,hard,nointr,nolock,proto=tcp,timeo=7,retrans=3,sec=sys,addr=10.4.0.1
> 0 0
:::
> none /root/tmp tmpfs rw 0 0
> none / aufs
> rw,si=d04e9d25,xino=/tmp/.aufs.xino,br:/root/diskless/clients/10.4.0.112=rw:/root/diskless/bccd=ro:/root=ro
> 0 0
Here the aufs line shows "xino=/tmp/.aufs.xino" which is the default
path when the writable branch is NFS. I am afraid that you forgot to
"mount -move" /tmp before chroot. It is necessary because aufs refers it
even if your initramfs is freed.
In your case, I'd recommend you to move /tmp.
For instance,
- mount all branches
- mount tmpfs /tmp
- mount aufs
- mount -move all branchs and /tmp under /root
- chroot or switch_root to /root and execute the init
And I don't think CONFIG_AUFS_EXPORT=y, CONFIG_AUFS_ROBR=y,
CONFIG_AUFS_SHWH=y and CONFIG_AUFS_RR_SQUASHFS=y are necessary for you.
J. R. Okajima
------------------------------------------------------------------------------
