* [Buildroot] [BUILDROOT] /dev mounted additionally at /mnt
@ 2010-10-25 13:36 Dennis Borgmann
[not found] ` <AANLkTi=f4MFmd7sApFEshhhBb2RjV-hBQT+a696xTXLZ@mail.gmail.com>
0 siblings, 1 reply; 2+ messages in thread
From: Dennis Borgmann @ 2010-10-25 13:36 UTC (permalink / raw)
To: buildroot
Hello buildroot-list!
I am using buildroot-2010.08 on an at91sam9g20. Everything is really
nice, but if I boot my device, it mounts the whole root-filesystem under
'/mnt' , although its contents rather seem to be related to the
'/dev'-directory. See the output of 'mount', 'ls /mnt' and 'cat
/etc/fstab' at the end of this mail. The '/etc/fstab' does not contain a
hint about why this may be this way.
Any ideas?
Kind regards,
Dennis
[root /]# mount
rootfs on / type rootfs (rw)
/dev/root on / type ext2 (rw,relatime)
proc on /proc type proc (rw,relatime)
devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /tmp type tmpfs (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
/dev/root on /mnt type ext2 (rw,relatime)
[root /]# ls /mnt
admmidi0 dsp0 i2c-0 ptyp5 sdb6 ttySAC0
admmidi1 dsp1 i2c-1 ptyp6 sdb7 ttySAC1
admmidi2 dsp2 i2c-2 ptyp7 sdb8 ttySAC2
admmidi3 dsp3 i2c-3 ptyp8 sdb9 ttySAC3
adsp@ fb0 input/ ptyp9 sequencer ttyUL0
adsp0 fb1 kmem ram sequencer2@ ttyUL1
adsp1 fb2 loop0 ram0 shm/ ttyUL2
adsp2 fb3 loop1 ram1 snd/ ttyUL3
adsp3 hda mem ram2 sndstat ttymxc0
aloadC0 hda1 midi@ ram3 tty ttymxc1
aloadC1 hda10 midi00 random tty0 ttymxc2
aloadC2 hda11 midi01 rtc tty1 ttyp0
aloadC3 hda12 midi02 sda tty2 ttyp1
aloadSEQ hda13 midi03 sda1 tty3 ttyp2
amidi@ hda14 mixer@ sda10 tty4 ttyp3
amidi0 hda2 mixer0 sda11 tty5 ttyp4
amidi1 hda3 mixer1 sda12 tty6 ttyp5
amidi2 hda4 mixer2 sda13 tty7 ttyp6
amidi3 hda5 mixer3 sda14 ttyAMA0 ttyp7
amixer0 hda6 mtd0 sda2 ttyAMA1 ttyp8
amixer1 hda7 mtd1 sda3 ttyAMA2 ttyp9
amixer2 hda8 mtd2 sda4 ttyAMA3 uba
amixer3 hda9 mtd3 sda5 ttyCPM0 uba1
audio@ hdb mtdblock0 sda6 ttyCPM1 uba2
audio0 hdb1 mtdblock1 sda7 ttyCPM2 uba3
audio1 hdb10 mtdblock2 sda8 ttyCPM3 uba4
audio2 hdb11 mtdblock3 sda9 ttyP0 uba5
audio3 hdb12 music sdb ttyP1 ubb
console hdb13 net/ sdb1 ttyP2 ubb1
dmfm0 hdb14 null sdb10 ttyP3 ubb2
dmfm1 hdb2 psaux sdb11 ttyPSC0 ubb3
dmfm2 hdb3 ptmx sdb12 ttyPSC1 ubb4
dmfm3 hdb4 pts/ sdb13 ttyPSC2 ubb5
dmmidi0 hdb5 ptyp0 sdb14 ttyPSC3 urandom
dmmidi1 hdb6 ptyp1 sdb2 ttyS0 zero
dmmidi2 hdb7 ptyp2 sdb3 ttyS1
dmmidi3 hdb8 ptyp3 sdb4 ttyS2
dsp@ hdb9 ptyp4 sdb5 ttyS3
[root /]# cat /etc/fstab
# /etc/fstab: static file system information.
#
# <file system> <mount pt> <type>
<options> <dump> <pass>
/dev/root / ext2
rw,noauto 0 1
proc /proc proc
defaults 0 0
devpts /dev/pts devpts
defaults,gid=5,mode=620 0 0
tmpfs /tmp tmpfs
defaults 0 0
sysfs /sys sysfs
defaults 0 0
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Buildroot] /dev mounted additionally at /mnt
[not found] ` <AANLkTi=f4MFmd7sApFEshhhBb2RjV-hBQT+a696xTXLZ@mail.gmail.com>
@ 2010-10-25 14:23 ` Dennis Borgmann
0 siblings, 0 replies; 2+ messages in thread
From: Dennis Borgmann @ 2010-10-25 14:23 UTC (permalink / raw)
To: buildroot
Hello Paulius!
Thank you for this FAST help. The problem was really inside inittab. I
would never have checked that file. The following line does not belong
there:
null::sysinit:/bin/mount -o remount,rw /
I commented it out and everything is the way it should be. Only question
is, why did it get into that file ever at all?
Thank you a whole lot!
Dennis
Paulius Zaleckas schrieb:
> On Mon, Oct 25, 2010 at 4:36 PM, Dennis Borgmann
> <dennis.borgmann@googlemail.com> wrote:
>
>> Hello buildroot-list!
>>
>> I am using buildroot-2010.08 on an at91sam9g20. Everything is really
>> nice, but if I boot my device, it mounts the whole root-filesystem under
>> '/mnt' , although its contents rather seem to be related to the
>> '/dev'-directory. See the output of 'mount', 'ls /mnt' and 'cat
>> /etc/fstab' at the end of this mail. The '/etc/fstab' does not contain a
>> hint about why this may be this way.
>>
>> Any ideas?
>>
>> Kind regards,
>> Dennis
>>
>> [root /]# mount
>> rootfs on / type rootfs (rw)
>> /dev/root on / type ext2 (rw,relatime)
>> proc on /proc type proc (rw,relatime)
>> devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620,ptmxmode=000)
>> tmpfs on /tmp type tmpfs (rw,relatime)
>> sysfs on /sys type sysfs (rw,relatime)
>> /dev/root on /mnt type ext2 (rw,relatime)
>>
>> [root /]# ls /mnt
>> admmidi0 dsp0 i2c-0 ptyp5 sdb6 ttySAC0
>> admmidi1 dsp1 i2c-1 ptyp6 sdb7 ttySAC1
>> admmidi2 dsp2 i2c-2 ptyp7 sdb8 ttySAC2
>> admmidi3 dsp3 i2c-3 ptyp8 sdb9 ttySAC3
>> adsp@ fb0 input/ ptyp9 sequencer ttyUL0
>> adsp0 fb1 kmem ram sequencer2@ ttyUL1
>> adsp1 fb2 loop0 ram0 shm/ ttyUL2
>> adsp2 fb3 loop1 ram1 snd/ ttyUL3
>> adsp3 hda mem ram2 sndstat ttymxc0
>> aloadC0 hda1 midi@ ram3 tty ttymxc1
>> aloadC1 hda10 midi00 random tty0 ttymxc2
>> aloadC2 hda11 midi01 rtc tty1 ttyp0
>> aloadC3 hda12 midi02 sda tty2 ttyp1
>> aloadSEQ hda13 midi03 sda1 tty3 ttyp2
>> amidi@ hda14 mixer@ sda10 tty4 ttyp3
>> amidi0 hda2 mixer0 sda11 tty5 ttyp4
>> amidi1 hda3 mixer1 sda12 tty6 ttyp5
>> amidi2 hda4 mixer2 sda13 tty7 ttyp6
>> amidi3 hda5 mixer3 sda14 ttyAMA0 ttyp7
>> amixer0 hda6 mtd0 sda2 ttyAMA1 ttyp8
>> amixer1 hda7 mtd1 sda3 ttyAMA2 ttyp9
>> amixer2 hda8 mtd2 sda4 ttyAMA3 uba
>> amixer3 hda9 mtd3 sda5 ttyCPM0 uba1
>> audio@ hdb mtdblock0 sda6 ttyCPM1 uba2
>> audio0 hdb1 mtdblock1 sda7 ttyCPM2 uba3
>> audio1 hdb10 mtdblock2 sda8 ttyCPM3 uba4
>> audio2 hdb11 mtdblock3 sda9 ttyP0 uba5
>> audio3 hdb12 music sdb ttyP1 ubb
>> console hdb13 net/ sdb1 ttyP2 ubb1
>> dmfm0 hdb14 null sdb10 ttyP3 ubb2
>> dmfm1 hdb2 psaux sdb11 ttyPSC0 ubb3
>> dmfm2 hdb3 ptmx sdb12 ttyPSC1 ubb4
>> dmfm3 hdb4 pts/ sdb13 ttyPSC2 ubb5
>> dmmidi0 hdb5 ptyp0 sdb14 ttyPSC3 urandom
>> dmmidi1 hdb6 ptyp1 sdb2 ttyS0 zero
>> dmmidi2 hdb7 ptyp2 sdb3 ttyS1
>> dmmidi3 hdb8 ptyp3 sdb4 ttyS2
>> dsp@ hdb9 ptyp4 sdb5 ttyS3
>>
>> [root /]# cat /etc/fstab
>> # /etc/fstab: static file system information.
>> #
>> # <file system> <mount pt> <type>
>> <options> <dump> <pass>
>> /dev/root / ext2
>> rw,noauto 0 1
>> proc /proc proc
>> defaults 0 0
>> devpts /dev/pts devpts
>> defaults,gid=5,mode=620 0 0
>> tmpfs /tmp tmpfs
>> defaults 0 0
>> sysfs /sys sysfs
>> defaults 0 0
>>
>
> Look at /etc/inittab it does some mounting already
> and after cleaning fstab all should be OK
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2010-10-25 13:36 [Buildroot] [BUILDROOT] /dev mounted additionally at /mnt Dennis Borgmann
[not found] ` <AANLkTi=f4MFmd7sApFEshhhBb2RjV-hBQT+a696xTXLZ@mail.gmail.com>
2010-10-25 14:23 ` [Buildroot] " Dennis Borgmann
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