Rodolfo Medina <[EMAIL PROTECTED]> writes:
>>> I have Debian Etch.
>>>
>>> In my /etc/fstab there is the following entry:
>>>
>>> /dev/sda /mnt/sda vfat rw,user,noauto 0 0
>>>
>>> , so I normally mount my usb pendrive simply with:
>>>
>>> $ mount /mnt/sda
Ron Johnson <[EMAIL PROTECTED]> writes:
>> [...] in /etc/fstab I'd refer to that drive not as /dev/sda but by it's
>> UUID.
Rodolfo:
> All right, I did so [...]. But now,
> when I want to unmount it, with: `umount /mnt/sda', the output is:
> `Segmentation fault', and the drive is not unmounted.
>
> How to unmount it now?
It seems to be a bug (in fact, the problem does not occur in Debian Sid):
see:
http://bugs.archlinux.org/task/11110
. To fix it, I'm attaching the patch. To find the device's UUID, do:
# blkid
. In my case, the output contained the line:
/dev/sda: SEC_TYPE="msdos" UUID="44F1-7D0C" TYPE="vfat"
. Then I put the following line in fstab:
UUID=44F1-7D0C /mnt/pendrive vfat rw,user,noauto 0 0
and did:
# mkdir /mnt/pendrive
, then rebooted. I copied the patch into /tmp and named it
`util-linux_user_mount.patch'. Then I ran the following commands:
# apt-get install build-essential
# apt-get build-dep mount
# cd /tmp
# apt-get source mount
# cd util-linux-2.12r
# ./debian/rules patch
# patch -Np1 -i ../util-linux_user_mount.patch
# ./configure
# make lib
# make -C mount
# chmod 4755 mount/umount
# mv mount/umount /bin
. Now I was able to mount the pendrive with:
$ mount /mnt/pendrive
and unmount it with:
$ umount /mnt/pendrive
Bye
Rodolfo
diff -U 3 -r util-linux-2.12r/mount/fstab.c util-linux-2.12r.new/mount/fstab.c
--- util-linux-2.12r/mount/fstab.c 2007-04-27 09:11:18.000000000 -0500
+++ util-linux-2.12r.new/mount/fstab.c 2007-04-26 21:59:09.000000000 -0500
@@ -296,7 +296,7 @@
const char *devuuid;
int ret;
- devuuid = mount_get_devname_by_uuid(device);
+ devuuid = mount_get_volume_uuid_by_spec(device);
ret = !strcmp(uuid, devuuid);
/* free(devuuid); */
return ret;
diff -U 3 -r util-linux-2.12r/mount/mount_blkid.c util-linux-2.12r.new/mount/mount_blkid.c
--- util-linux-2.12r/mount/mount_blkid.c 2007-04-27 09:11:18.000000000 -0500
+++ util-linux-2.12r.new/mount/mount_blkid.c 2007-04-26 22:01:13.000000000 -0500
@@ -32,6 +32,11 @@
}
const char *
+mount_get_volume_uuid_by_spec(const char *spec) {
+ return blkid_get_tag_value(blkid, "UUID", spec);
+}
+
+const char *
mount_get_devname_by_label(const char *label) {
return blkid_get_devname(blkid, "LABEL", label);
}
diff -U 3 -r util-linux-2.12r/mount/mount_blkid.h util-linux-2.12r.new/mount/mount_blkid.h
--- util-linux-2.12r/mount/mount_blkid.h 2007-04-27 09:11:18.000000000 -0500
+++ util-linux-2.12r.new/mount/mount_blkid.h 2007-04-26 22:02:51.000000000 -0500
@@ -6,6 +6,7 @@
extern void mount_blkid_get_cache(void);
extern void mount_blkid_put_cache(void);
extern const char *mount_get_devname_by_uuid(const char *uuid);
+extern const char *mount_get_volume_uuid_by_spec(const char *spec);
extern const char *mount_get_devname_by_label(const char *label);
extern const char *mount_get_volume_label_by_spec(const char *spec);
extern const char *mount_get_devname(const char *spec);
