Collins: On Mon, 6 Mar 2006, Lawrence Houston wrote: > On Fri, 3 Mar 2006, Collins Richey wrote: > >> Just came up with some interesting (read: frustrating) problems on >> RHEL3 and RHEL4 today at work, and I've confirmed one of the problems >> on my up-to-date CentOS4 system at home. I was forced into releasing >> some RHEL3 systems to replace our aging RH9 systems without time for >> adequate testing, and that leads to problems like these. >> >> On our legacy RH9 systems, mounting a USB key is no problem, but I >> can't get it to work on either RHEL3-U6 or RHEL4-U2 (= CentOS4). I'm >> curious if any CentOS3 or CentOS4 users have any suggestions. > > Last week I noticed similar problems with USB Flash/External Drives failing > to Automount under RHEL3-U6/CentOS3.6, so your Posting caught my attention. > Curiously within CentOS's Archives for some people USB Device Automounting > works and for others it does NOT, so I decided to revisit CentOS4 (since it > uses a different mechanism for its USB Hotplugging)... > >> Here are the results from plugging in a USB Key and trying to mount it: >> >> 1. On RHEL3-U6, some systems get the following, and there is a workaround: >> >> Message: USB device not accepting new address >> Workaround: /sbin/modprobe -r ehci-hcd >> >> Message: READ CAPACITY failed >> ... >> Unable to read partition table >> >> Workareound: none that I am aware of. The above workaround has no effect. > > With RHEL3-U6, CentOS 3.5 "clean" (then upgraded to 3.6) adding appropriate > entries to /etc/updfstab.default atleast kudzu creates a mount point within > /mnt and adds the correct entry to /etc/fstab, although still NO > Automounting... From there "mount /mnt/???????" or running "Disk Management" > successfully mounts the USB Flash/External Drives. Although it was noted > that the kudzu generated entries do NOT always appear with "Disk > Management"'s List, although the command-line mount still worked??? More recently I tried RHEL3-U7, as with RHEL3-U6 Mount Points are created and FSTAB Entries are added, but still NO Automounting... Possibly that is by design with RHEL3/CentOS3??? >> 3. RHEL4-U2 and CentOS4 get the following: >> >> No possibility to mount. As soon as you plug in the USB key, the >> system goes into a SCSI error loop until you unplug it. >> >> I've googled extensively for an answer, found a few hits for the RHEL3 >> problem, but no useful solutions. >> >> The RHEL4 problem is apparrently a 2.6 kernel bug. Doe anyone know of >> a packaged kernel solution for this? I'm using the CentOS unsupported >> kernel at home, but same problem as in the stock RHEL4 kernel. Have RH >> possibly fixed this in the U3 beta? >> >> In case you're wondering about the key(s), the mount works flawlessly >> including KDE automounting the key on my Kubuntu Dapper development >> system with kernel 2.6.15-16-386 #1 PREEMPT. > > Under CentOS4 my results were different... With CentOS 4.1 "clean" > Automounting of my Kingston USB Flash Drive actually worked, the Drive ICON > appeared on the Desktop (GNOME) and its contents could be viewed once the > Drive ICON was opened!!! Additionally the Flash Drive could be Unmounted > from within the ICON's Properties... > > Unfortunately after a full upgrade to CentOS 4.2 the Automounting no longer > worked and the System Logs now recorded some dbus Error Messages about being > unable to report warnings (this had NOT been the case with the "clean" CentOS > 4.1)!!! Additionally with the "upgraded" CentOS 4.2 "Removable Storage" > fails to run: claiming "hald" (HAL Daemon) was not running, when it fact it > was??? Under the "upgraded" CentOS 4.2 I also tried the CentOSPlus (per > Johnny's suggestion) and found the same problems (whether the "clean" CentOS > 4.1, the stock "upgraded" CentOS 4.2 or "Plus" CentOS 4.2 Kernels were > used)... With the above RHEL3-U7 upgraded to RHEL4-U3 the Automounting is back to working, as it had under CentOS4.1 (before being upgrade to CentOS4.2)... I am curious to see how CentOS4.3 performs once it is released??? >> Collins Richey >> The agnostic dyslexic insomniac lies awake wondering if there is a >> dog. >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos Lawrence Houston -- (centos at greenfield.dyndns.org)