Multiple mounts - Linux Forums

12-10-2008	#1 (permalink)
ercolano Just Joined! Join Date: Dec 2008 Posts: 3	Multiple mounts I have booted Knoppix 5.1 from a USB stick Here is fdisk -l Disk /dev/sda: 163.9 GB, 163927522816 bytes 255 heads, 63 sectors/track, 19929 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 5 19929 160047562+ 7 HPFS/NTFS Disk /dev/sdb: 320.0 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 1 38913 312568641 7 HPFS/NTFS Disk /dev/sdc: 1014 MB, 1014497280 bytes 65 heads, 32 sectors/track, 952 cylinders Units = cylinders of 2080 * 512 = 1064960 bytes Device Boot Start End Blocks Id System /dev/sdc1 * 1 953 990704 b W95 FAT32 Partition 1 has different physical/logical endings: phys=(967, 64, 32) logical=(952, 39, 32) There are links for /dev/sda1 and /dev/sdb1 on the desktop, but if I open them up they always show the USB key /dev/sdc1 here is /etc/mtab /dev/root / ext2 rw 0 0 /dev/sda1 /cdrom fuseblk ro,nosuid,nodev,noatime,allow_other,blksize=4096 0 0 /dev/sdb1 /cdrom fuseblk ro,nosuid,nodev,noatime,allow_other,blksize=4096 0 0 /ramdisk /ramdisk tmpfs rw,size=411948k,mode=755 0 0 /UNIONFS /UNIONFS aufs rw,br:/ramdisk:/KNOPPIX 0 0 /dev/sdc1 /cdrom vfat ro,nodev,fmask=0022,dmask=0022,codepage=cp437,ioch arset=iso8859-1 0 0 /dev/cloop /KNOPPIX iso9660 ro 0 0 /proc/bus/usb /proc/bus/usb usbfs rw,devmode=0666 0 0 /dev/pts /dev/pts devpts rw 0 0 As far as I can make out, there are multiple mount on /cdrom. How do I correct this?

12-10-2008	#2 (permalink)
devils casper Super Moderator Join Date: Jun 2006 Location: Chandigarh, India Posts: 21,081	Post the contents of /etc/fstab file here. __________________ It takes a lot of time to be a genius, you have to sit around so much doing nothing, really doing nothing. - Gertrude Stein New Users: Read This First

03-07-2009	#3 (permalink)
skyrock Just Joined! Join Date: Mar 2009 Posts: 6	I had exactly the same problem with my USB Knoppix. I installed Knoppix 5.1 on a USB stick and able to boot with this image, but after some playing around i started to realise it mounts the USB stick to multiple points. I tried to unmount this drive but it would not let me and told me it has mounted multiple times. after that, i tried to boot with a CD copy of knoppix and this time it works correctly as /dev/sda1 is now my harddrive and i can mount and unmount it. anybody has an idea how to fix this? I really liked to use the USB booting as it works a lot faster than the CD. regards, SkY

03-07-2009	#4 (permalink)
devils casper Super Moderator Join Date: Jun 2006 Location: Chandigarh, India Posts: 21,081	Hi and Welcome ! Boot up from USB stick again and execute df -h command. Post output here. Code: df -h __________________ It takes a lot of time to be a genius, you have to sit around so much doing nothing, really doing nothing. - Gertrude Stein New Users: Read This First

03-08-2009	#5 (permalink)
skyrock Just Joined! Join Date: Mar 2009 Posts: 6	Code: Filesystem Size Used Avail Use% Mounted on /dev/root 3.4M 23K 3.4M 1% / /dev/sda1 1.9G 712M 1.2G 37% /cdrom /ramdisk 1012M 5.3M 1007M 1% /ramdisk /UNIONFS 1012M 5.3M 1007M 1% /UNIONFS /dev/sdb1 1.9G 712M 1.2G 37% /cdrom /dev/cloop 2.0G 2.0G 0 100% /KNOPPIX the above was the df -h result from USB boot. i tried to unmount both sda1 and sdb1, the error is "/cdroom is mounted multiple times" and cannot be unmount regards, sKy

03-11-2009	#6 (permalink)
skyrock Just Joined! Join Date: Mar 2009 Posts: 6	anyone can give assistant to the above problem?

03-11-2009	#7 (permalink)
devils casper Super Moderator Join Date: Jun 2006 Location: Chandigarh, India Posts: 21,081	Put # sign before /dev/sda1 and /dev/sdb1 lines in /etc/fstab file. Code: #/dev/sda1 /cdrom fuseblk ro,nosuid,nodev,noatime,allow_other,blksize=4096 0 0 #/dev/sdb1 /cdrom fuseblk ro,nosuid,nodev,noatime,allow_other,blksize=4096 0 0 Execute this to unmount partitions. Code: umount /dev/sda1 umount /dev/sdb1 Try to mount both manually again. __________________ It takes a lot of time to be a genius, you have to sit around so much doing nothing, really doing nothing. - Gertrude Stein New Users: Read This First

03-14-2009

#8 (permalink)

skyrock

Just Joined!

Join Date: Mar 2009

Posts: 6

here's the result after I tried. It doesnt work.

Quote:

knoppix@Knoppix:~$ #/dev/sda1 /cdrom fuseblk ro,nosuid,nodev,noatime,allow_other,blksize=4096 0 0
knoppix@Knoppix:~$ #/dev/sdb1 /cdrom fuseblk ro,nosuid,nodev,noatime,allow_other,blksize=4096 0 0
knoppix@Knoppix:~$ umount /dev/sda1
umount: /dev/sda1 mount disagrees with the fstab
knoppix@Knoppix:~$ umount /dev/sdb1
umount: /dev/sdb1 mount disagrees with the fstab
knoppix@Knoppix:~$

03-14-2009

#9 (permalink)

devils casper

Super Moderator

Join Date: Jun 2006

Location: Chandigarh, India

Posts: 21,081

Send a message via Yahoo to devils casper

Quote:

knoppix@Knoppix:~$ #/dev/sda1 /cdrom fuseblk ro,nosuid,nodev,noatime,allow_other,blksize=4096 0 0
knoppix@Knoppix:~$ #/dev/sdb1 /cdrom fuseblk ro,nosuid,nodev,noatime,allow_other,blksize=4096 0 0

Do not execute those commands at prompt. Open /etc/fstab file and put # sign before those lines.

Code:

su -
nano /etc/fstab

Press Ctrl+X, Y and hit Enter key to save file.

__________________

It takes a lot of time to be a genius, you have to sit around so much doing nothing, really doing nothing. - Gertrude Stein
New Users: Read This First

03-17-2009

#10 (permalink)

skyrock

Just Joined!

Join Date: Mar 2009

Posts: 6

here's what I did:

1. opened terminal and typed su -, then I saw shell prompt become root@knoppix:~#
2. typed nano /etc/fstab and entered into editor. found the lines as below:

Code:

/proc /proc proc rw,nosuid,nodev,noexec 0 0 /sys /sys sysfs
rw,nosuid,nodev,noexec 0 0 /dev/shm /dev/shm tmpfs
rw,nosuid,nodev,noexec 0 0 /dev/pts /dev/pts devpts mode=0622 0 0
/dev/fd0 /media/fd0 auto user,noauto,exec,umask=000 0 0 /dev/cdrom
/media/cdrom auto user,noauto,exec,ro 0 0 /dev/hdc /media/hdc auto
users,noauto,exec,ro 0 0
# Added by KNOPPIX
/dev/sda1 /media/sda1 ntfs noauto,users,exec,umask=000,uid=knoppix,gid=knoppix$
# Added by KNOPPIX
/dev/sdb1 /media/sdb1 vfat noauto,users,exec,umask=000,shortname=winnt,uid=knoppix id=knoppix,gid=knoppix 0 0

3. tried putting # sign infront of /dev/sdb1 and /dev/sda1, then save and umount but it says device is busy and cannot unmount.

regards
sky

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