Re: [tlug] Trouble with external USB hard disk: GUI admin tool intrigue

[David Bernat <dbernat@example.com>]

jep200404 wrote:

> Review and respond to http://www.tlug.jp/ML/0810/msg00245.html

david@example.com:~$ cat /etc/fstab
# /etc/fstab: static file system information.
#
#  -- This file has been automaticly generated by ntfs-config --
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>

proc /proc proc defaults 0 0
# Entry for /dev/sda1 :
UUID=9b6119b9-a271-4e66-af2d-9ba2fb3509c4 / ext3 
nouser,relatime,errors=remount-ro,atime,auto,rw,dev,exec,suid 0 1
# Entry for /dev/sda5 :
UUID=6298b9dd-6c63-41a2-a9f3-7f2e19cd2b52 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 
user,utf8,atime,noauto,rw,dev,exec,suid 0 0
/root/sdb5 /root auto users,atime,noauto,rw,nodev,noexec,nosuid 0 0
/dev/sdc1 /home auto users,atime,auto,rw,nodev,noexec,nosuid 0 0
/dev/sdb1 /home/david/foomnt auto 
users,atime,auto,rw,nodev,noexec,nosuid 0 0

david@example.com:~$ ls -ld /dev/s*
brw-rw----+ 1 root cdrom 11,   0 2008-11-25 09:22 /dev/scd0
brw-rw----  1 root disk   8,   0 2008-11-25 09:22 /dev/sda
brw-rw----  1 root disk   8,   1 2008-11-25 09:22 /dev/sda1
brw-rw----  1 root disk   8,   2 2008-11-25 09:22 /dev/sda2
brw-rw----  1 root disk   8,   5 2008-11-25 09:22 /dev/sda5
brw-rw----  1 root disk   8,  16 2008-11-25 09:22 /dev/sdb
brw-rw----  1 root disk   8,  17 2008-11-25 09:22 /dev/sdb1
crw-rw----+ 1 root audio 14,   1 2008-11-25 09:22 /dev/sequencer
crw-rw----+ 1 root audio 14,   8 2008-11-25 09:22 /dev/sequencer2
crw-rw----  1 root cdrom 21,   0 2008-11-25 09:22 /dev/sg0
crw-rw----  1 root disk  21,   1 2008-11-25 09:22 /dev/sg1
crw-rw----  1 root disk  21,   2 2008-11-25 09:22 /dev/sg2
drwxrwxrwt  2 root root       40 2008-11-25 09:22 /dev/shm
crw-rw----  1 root root  10, 231 2008-11-25 09:22 /dev/snapshot
drwxr-xr-x  2 root root      180 2008-11-25 09:22 /dev/snd
lrwxrwxrwx  1 root root       24 2008-11-25 09:22 /dev/sndstat -> 
/proc/asound/oss/sndstat
lrwxrwxrwx  1 root root        4 2008-11-25 09:22 /dev/sr0 -> scd0
lrwxrwxrwx  1 root root       15 2008-11-25 09:22 /dev/stderr -> 
/proc/self/fd/2
lrwxrwxrwx  1 root root       15 2008-11-25 09:22 /dev/stdin -> 
/proc/self/fd/0
lrwxrwxrwx  1 root root       15 2008-11-25 09:22 /dev/stdout -> 
/proc/self/fd/1

david@example.com:~$ ls -ld /sys/block/s*
drwxr-xr-x 8 root root 0 2008-11-25 10:08 /sys/block/sda
drwxr-xr-x 6 root root 0 2008-11-25 10:08 /sys/block/sdb
drwxr-xr-x 5 root root 0 2008-11-25 10:08 /sys/block/sr0

david@example.com:~$ mount
/dev/sda1 on / type ext3 (rw,relatime,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
/sys on /sys type sysfs (rw,noexec,nosuid,nodev)
varrun on /var/run type tmpfs (rw,noexec,nosuid,nodev,mode=0755)
varlock on /var/lock type tmpfs (rw,noexec,nosuid,nodev,mode=1777)
udev on /dev type tmpfs (rw,mode=0755)
devshm on /dev/shm type tmpfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
lrm on /lib/modules/2.6.24-21-generic/volatile type tmpfs (rw)
/dev/sdb1 on /home/david/foomnt type vfat (rw,noexec,nosuid,nodev)
securityfs on /sys/kernel/security type securityfs (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc 
(rw,noexec,nosuid,nodev)

david@example.com:~$ sudo fdisk -l /dev/sda
Disk /dev/sda: 320.0 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00019bf7

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1       38164   306552298+  83  Linux
/dev/sda2           38165       38913     6016342+   5  Extended
/dev/sda5           38165       38913     6016311   82  Linux swap / Solaris

david@example.com:~$ sudo fdisk -l /dev/sdb

Disk /dev/sdb: 320.0 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x44634187

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1       38913   312568641    c  W95 FAT32 (LBA)

> I thought you might be back. 

I'd rather not be back for a repetition of this problem.

Just what happens to HAL during kernel upgrades that affects writing to 
external USB drives?