I got the warning “your root partition is running out of disk space.
My system is running KNOPPIX 9 from a hard disk /dev/sdc, and the partitions had been mounted at boot time as KNOPPIX does.
But the the size for rootfs is only 16 GB
df -Th shows
FileSys Type Size Uded Avail Use% MountedOn
rootfs rootfs 16G 16G 30M 100% /
Additionaly I have on an USB stick KNOPPIX 9 which I labeled “KNOPPIX_9”, is now /dev/sdl1.
About a year ago I have loop-mounted this KNOPPIX from the USB stick:
First assigned by losetup, so losetup shows
/dev/loop0 [0005]:4127 (/dev/sdl1)
Then
mount -t iso9660 /dev/loop0 /WE-MNT01/iso_KNOPPIX_9
Q1:
Please, how can I query the system from which device it was booted, it is currently running, for Kubuntu and KNOPPIX ?
.
I saw that this mounted on /WE-MNT01 took 5 GB. So I decided to umount it.
Normal umount was not possible because of “device busy”,
But
fuser -m /WE-MNT01/iso_KNOPPIX_9
and lsof
gave error “stale file handle”.
I found that an editor had open one file. I closed it.
But “device busy” still.
Then unfortunately I made
umount --lazy /WE-MNT01/iso_KNOPPIX_9
I tried to detach in lusetup; was not possible.
After the umount and sync, all was still the same: no disk space freed, device stll busy.
Even after a long, long time.
I considered, perhaps I have forgotten, perhaps something from below the mount point is needed and continuously in use.
I tried to redo my lazy umount by
mount -t iso9660 /dev/loop0 /WE-MNT01/iso_KNOPPIX_9
Was not accepted with message:
mount: /WE-MNT01/iso_KNOPPIX_9: /dev/loop0 already moumted or mount point busy
Now I am in an unclear sotuation.
Q2:
Please is there a help?
Regatds
