On Sun, Jan 24, 2010 at 4:54 PM, Eric Van Hensbergen <ericvh@gmail.com> wrote:

On Sun, Jan 24, 2010 at 7:02 AM, Lorenzo Bolla <lbolla@gmail.com> wrote:
> I'm trying to use "9 mount" to mount acme's socket (in `namespace`/acme) to
> some directory in /mnt (let's say /mnt/acme). I'm using ArchLInux:
> $> uname -a
> Linux eee 2.6.32-ARCH #1 SMP PREEMPT Sat Dec 26 08:26:17 UTC 2009 i686
> Intel(R) Atom(TM) CPU N280 @ 1.66GHz GenuineIntel GNU/Linux
> The simple command:

> mount -t 9p -o unix,trans=unix,name=lollo,uname=lollo,noextend,nodev
> /tmp/ns.lollo.:0/acme /home/lollo/acme
> and I've traced down the offending option to be "trans=unix".
> Any suggestions?

you shouldn't need -o unix,trans=unix -- just trans=unix.
Double check the 9pnet module is installed as well as the 9p module
(it should be automagically in the kernel version you are running).
Also, a good tip when trying to figure out whats going south when v9fs
is involved is to add debug=0xffff into your mount options and post
the respective sections of your /var/log/messages.

Just tried it on 2.6.33-rc4 and it mounted fine
mount -t 9p /tmp/ns.root.localhost:10/acme /mnt -o trans=unix,uname=root

-eric

Jan 24 17:51:19 eee kernel: Modules linked in: 9p 9pnet fscache usbhid hid ipv6 ntfs arc4 ecb ath9k snd_seq_dummy mac80211 i915 snd_seq_oss ath uvcvideo snd_seq_midi_event drm_kms_helper videodev joydev snd_hda_codec_realtek snd_seq cfg80211 v4l1_compat eeepc_laptop drm snd_seq_device snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss iTCO_wdt rfkill fan psmouse iTCO_vendor_support i2c_algo_bit snd_mixer_oss snd_pcm intel_agp uhci_hcd snd_timer ehci_hcd led_class pci_hotplug ac serio_raw pcspkr i2c_core sg atl1e thermal agpgart processor battery snd usbcore video output soundcore button snd_page_alloc evdev rtc_cmos rtc_core rtc_lib ext3 jbd mbcache sd_mod ata_piix ata_generic pata_acpi libata scsi_mod