Eject Tinycore boot cd

[limeblack]

How would I go about ejecting the tinycore linux cdrom through bash.

It is throughly documented that tc boots entirely to ram.  That's great for speed and allows you to rip the thumb drive out after boot, http://www.tinycorelinux.com/faq.html#arch.

Unfortunately I can't realistic 'rip' the cdrom out because the door won't open    

I have attempted forcing a umount -f and using sudo.
I can successfully umount the cdrom using the lazy command.

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sudo umount -l /dev/hdc
Unfortunately afterwards I still can't eject the cd.

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eject /dev/hdc
eject: /dev/hdc: Input/output error
I also tried using fuser -kf /dev/hdc to kill the processes using /dev/hdc but that kills tinycore

Does anyone have any ideas
Thanks

[danielibarnes]

what is the output of mount? I am able to duplicate your problem when I have extensions in a /tce directory of the CD. A lazy unmount will remove the drive from "mount" but the loop devices are still using the disc:

# mount
/dev/hdc on /mnt/hdc type iso9660 (ro,relatime)
/dev/loop0 on /tmp/tcloop/dropbear type squashfs (ro,relatime)
/dev/loop1 on /tmp/tcloop/syslinux type squashfs (ro,relatime)
# umount -l /dev/hdc
# mount
/dev/loop0 on /tmp/tcloop/dropbear type squashfs (ro,relatime)
/dev/loop1 on /tmp/tcloop/syslinux type squashfs (ro,relatime)

[limeblack]

Mount responds with the following.

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rootfs on / type rootfs (rw,size=447456k,nr_inodes=111864)
tmpfs on / type tmpfs (rw,relatime,size=813176k)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
devpts on /dev/pts type devpts (rw,relatime,mode=600)
tmpfs on /dev/shm type tmpfs (rw,relatime)
/dev/hdc on /mnt/hdc type iso9660 (ro,relatime)
/dev/loop0 on /tmp/tcloop/kmaps type squashfs (ro,relatime)
/dev/sdf2 on /mnt/sdf2 type vfat (rw,relatime,fmask=0000,dmask=0000,allow_utime=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
Also you are right, about me having extensions on the cd.  It is a remastered tinycorelinux with kmaps for dvorak.  

Not sure if that helps.

[gerald_clark]

It is still mounted.

[limeblack]

Yes it is still mounted. 

I'm trying to diagnose whats keeping it in, but I'm not really sure.

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umount /dev/loop0
fuser -m /dev/hdcand got the following response

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627 662 913
I looked up the ps values using ps | grep num

flwm_topside
wbar -press -config /usr/local/tce.icons
aterm

Not really sure if that helps.
After doing the above I again tried to eject the cd.

Code: [Select]

umount -l /mnt/hdc
eject /mnt/hdc
eject: /mnt/hdc: Inappropriate ioctl for device

I feel closer, with the different error message.

[limeblack]

  I have successfully ejected the cd!  Thanks!

Is there any where to determine the loop devices being used at the moment?
I would like to eject the cd at boot, and it appears I must umount and losetup -d /dev/loopX for every extension I have installed.  If that's true it would be nice to set up a for in loop or something so I don't have to edit the script for every extension I add.

Code: [Select]

umount /dev/loop0
losetup -d /dev/loop0
umount /dev/hdc/
eject /dev/hdc


[danielibarnes]

I have successfully ejected the cd!  Thanks!

Yes, but you also removed the kmaps extension by unmounting the loop device, or was that your intention? If not, you should copy the extension to ram before mounting with the copy2fs flag file.

[limeblack]

I would like to keep the extension installed.
Though, I'm unsure what you mean
How would you successfully keep the extensions installed with the copy2fl file?

[danielibarnes]

Sorry, I misspoke. The presence of a copy2fs.flg file in your tce directory will cause extensions to be copied into the root filesystem instead of being loop-mounted. Thus, you will be able to unmount and eject the CD after booting.

[tinypoodle]

There are ways to have extensions mounted from rootfs, e.g. from /opt/tce.
Search wiki for "remaster" 

[danielibarnes]

or use my qremaster script to create an iso image.

[roberts]

The title of this topic and opening salvo is very misleading.

Unfortunately I can't realistic 'rip' the cdrom out because the door won't open

Booting Tiny Core from CD defaults to loading the OS into ram and the CD is easily ejected.

However, if one is using a remaster where one has, in particular, decided to mount extensions from this CD then of course, the CD is in use and cannot be unmounted.

Using a remaster should be disclosed.