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Linux From Scratch This Forum is for the discussion of LFS.
LFS is a project that provides you with the steps necessary to build your own custom Linux system.

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Old 12-27-2012, 01:45 PM   #1
DavidLee1A
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Will these nosuid and nodev going to be a problem?


I'm doing this common operation: http://www.linuxfromscratch.org/lfs/.../mounting.html

it says: "Ensure that this new partition is not mounted with permissions that are too restrictive (such as the nosuid or nodev options)"

will this output from mount give me a problem?

Code:
root@host:/dev# export LFS=/mnt/lfs
root@host:/dev# mkdir -pv $LFS
mkdir: created directory `/mnt/lfs'
root@host:/dev# mount -v -t ext3 /dev/sdb1 $LFS
/dev/sdb1 on /mnt/lfs type ext3 (rw)
root@host:/dev# mount
/dev/sda1 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
/dev/sdb1 on /media/883460ce-b241-49ff-8cc3-63ff903bb2b3 type ext3 (rw,nosuid,nodev,uhelper=udisks)
/dev/sdb1 on /mnt/lfs type ext3 (rw)
root@host:/dev# mount -v -t ext3 /dev/sdb1 $LFS
mount: /dev/sdb1 already mounted or /mnt/lfs busy
mount: according to mtab, /dev/sdb1 is already mounted on /mnt/lfs
root@host:/dev# mount
/dev/sda1 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
/dev/sdb1 on /media/883460ce-b241-49ff-8cc3-63ff903bb2b3 type ext3 (rw,nosuid,nodev,uhelper=udisks)
/dev/sdb1 on /mnt/lfs type ext3 (rw)
root@host:/dev#
 
Old 12-27-2012, 01:55 PM   #2
Keith Hedger
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Quote:
Originally Posted by DavidLee1A View Post
I'm doing this common operation: http://www.linuxfromscratch.org/lfs/.../mounting.html

it says: "Ensure that this new partition is not mounted with permissions that are too restrictive (such as the nosuid or nodev options)"

will this output from mount give me a problem?

Code:
root@host:/dev# export LFS=/mnt/lfs
root@host:/dev# mkdir -pv $LFS
mkdir: created directory `/mnt/lfs'
root@host:/dev# mount -v -t ext3 /dev/sdb1 $LFS
/dev/sdb1 on /mnt/lfs type ext3 (rw)
root@host:/dev# mount
/dev/sda1 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
/dev/sdb1 on /media/883460ce-b241-49ff-8cc3-63ff903bb2b3 type ext3 (rw,nosuid,nodev,uhelper=udisks)
/dev/sdb1 on /mnt/lfs type ext3 (rw)
root@host:/dev# mount -v -t ext3 /dev/sdb1 $LFS
mount: /dev/sdb1 already mounted or /mnt/lfs busy
mount: according to mtab, /dev/sdb1 is already mounted on /mnt/lfs
root@host:/dev# mount
/dev/sda1 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
/dev/sdb1 on /media/883460ce-b241-49ff-8cc3-63ff903bb2b3 type ext3 (rw,nosuid,nodev,uhelper=udisks)
/dev/sdb1 on /mnt/lfs type ext3 (rw)
root@host:/dev#
This is from my running LFS system:
Code:
/dev/sda3 on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=4,mode=620)
shm on /dev/shm type tmpfs (rw)
gvfs-fuse-daemon on /home/keithhedger/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,noexec)
/dev/sda8 on /media/TempStore type ext4 (rw,nosuid,nodev,noatime)
/dev/sdb3 on /media/Photos type ext4 (rw,nosuid,nodev,noatime)
/dev/sdb4 on /media/Books type ext4 (rw,nosuid,nodev,noatime)
/dev/sdb2 on /media/Music type ext4 (rw,nosuid,nodev,noatime)
/dev/sdb1 on /media/LinuxData type ext4 (rw,nosuid,nodev,noatime)
/dev/sdc1 on /media/SkyNet type ext2 (rw,nosuid,nodev,noatime)
 
1 members found this post helpful.
Old 12-27-2012, 04:11 PM   #3
spiky0011
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Registered: Jan 2011
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Distribution: Ubuntu 12.04/12.10/13.04/LFS/Centos6.3/Debain/PCBSD/Mageia 3
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Hi

Quote:
Ensure that this new partition is not mounted with permissions that are too restrictive
Taken from that page. You have

/dev/sdb1 on /mnt/lfs type ext3 (rw) no restrictions
 
  


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