maemo.org - Talk - How to mount opt folder?

maemo.org - Talk (https://talk.maemo.org/index.php)

- Maemo 5 / Fremantle (https://talk.maemo.org/forumdisplay.php?f=40)

- - How to mount opt folder? (https://talk.maemo.org/showthread.php?t=96318)

How to mount opt folder?

Could anybody write precisely how to mount opt folder from second emmc partition under rescueOS by NIN101? Or how to uninstall package using dpkg -r (or -P) with no access to that folder.

Re: How to mount opt folder?

These commands inside the rescueOS shell mount:
1. first the maemo rootfs,
2. second the optfs partition to the home directory of maemo rootfs,
3. third the opt directory inside the maemo rootfs

Code:

mmr

mount /dev/mmcblk0p2 /mnt/maemo/home

mount -o bind /mnt/maemo/home/opt /mnt/maemo/opt

Re: How to mount opt folder?

Btw. it might be sufficient to erase the file /etc/modprobe.d/fcam.conf according to its content:

Quote:

~ $ cat /etc/modprobe.d/fcam.conf
# Override configuration file for the FCam camera control API replacement kernel modules for the N900 camera subsystem.
# Remove this file and reboot to restore use of the original kernel modules.

install fcam modprobe fcam-vanilla; modprobe fcam-power; echo "-1" > /proc/sys/kernel/sched_rt_runtime_us

install fcam-vanilla /sbin/insmod /usr/share/fcam/isp-mod.ko && /sbin/insmod /usr/share/fcam/omap34xxcam-mod.ko && /sbin/insmod /usr/share/fcam/omap_previewer_hack.ko && /sbin/insmod /usr/share/fcam/et8ek8.ko && /sbin/insmod /usr/share/fcam/board-rx51-camera.ko

install fcam-power /sbin/insmod /usr/share/fcam/power/isp-mod.ko && /sbin/insmod /usr/share/fcam/power/omap34xxcam-mod.ko && /sbin/insmod /usr/share/fcam/power/omap_previewer_hack.ko && /sbin/insmod /usr/share/fcam/power/et8ek8.ko && /sbin/insmod /usr/share/fcam/power/board-rx51-camera.ko

install isp-mod modprobe fcam
install omap34xxcam-mod modprobe fcam
install omap_previewer_hack modprobe fcam
install et8ek8 modprobe fcam

Re: How to mount opt folder?

Quote:

Originally Posted by michaaa62 (Post 1493815)

These commands inside the rescueOS shell mount:
1. first the maemo rootfs,
2. second the optfs partition to the home directory of maemo rootfs,
3. third the opt directory inside the maemo rootfs

Code:

mmr

mount /dev/mmcblk0p2 /mnt/maemo/home

mount -o bind /mnt/maemo/home/opt /mnt/maemo/opt

Thank you very much. It works. But now I have next problem. When I have tried to remove (commands chroot /mnt/maemo/ then dpkg -P) application blessn900 (which may be the pre-reason of my problems), I got a message as follows:

"dsmesock_connect: No such file or directory
dpkg: error processing blessn900 (--purge)
subprocess pre-removal script returned error exit status 1
Failed to open connection to "session" message bus: (null)
Errors were encountered while processing"

Do you have any suggestions what to do next?

Re: How to mount opt folder?

Additional: when I use df command I get information like this: rootfs 1k-blocks used: 11456 available: 0 use%: 100% .

Re: How to mount opt folder?

When I have run fsck I got a message:

"The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>".

Re: How to mount opt folder?

Which file system did you try to repair/check ?

Did you mount additional resources of the running 'rescueOS' to the 'maemo' chroot environment, like that:

Code:

mount -o bind /dev/ /mnt/maemo/dev

mount -o bind /proc/ /mnt/maemo/proc

mount -o bind /sys/ /mnt/maemo/sys

mount -o bind /dev/pts /mnt/maemo/dev/pts

???

Re: How to mount opt folder?

Quote:

Originally Posted by michaaa62 (Post 1493903)

Which file system did you try to repair/check ?

Did you mount additional resources of the running 'rescueOS' to the 'maemo' chroot environment, like that:

Code:

mount --bind /dev/ /mnt/dev

mount --bind /proc/ /mnt/proc

mount --bind /sys/ /mnt/sys

mount --bind /dev/pts /mnt/dev/pts

???

No, I did not. Any of the above.

Re: How to mount opt folder?

All of them, these are directories, that get created/populated at boot time, so the non-running maemo does not work correctly without.

But note the changes of the mount points in the former post, i edited! Sorry for that.

Re: How to mount opt folder?

So, what should I do now ? I am a little bit confused.