Hi Albert, So far I've not noticed any problems with /boot, but many thanks for the warning. I'll take care there. Do you think this is a kernel thing? I'm currently running RHEL4, kernel 2.6.9-22.0.1.ELsmp on an Opteron system, gnome-desktop-2.8.0-5. All disks (including boot disk) are SCSI. Currently 3 workrounds for me: 1. Make sure the console GUI is logged out and do the mount from a remote terminal. 2. Log in on the console GUI as a normal user, su to root and do the mount. 3. Make sure the console GUI is logged out, start a virtual terminal session (CTRL/ALT/F1), log in as root and do the mount. I wonder why a kernel upgrade should involve a 'grub --install' step? I thought all that was necessary was to load the new kernel files into /boot and modify grub.conf, and that a 'grub-install' would only be necessary if grub itself was changed. I've certainly plonked new kernels into /boot (and loaded associated /lib/modules), modified grub.conf and they have booted OK... Cheers, and many thanks for your help here, Terry. >Hi Terry, > >I guessed that was the problem, I also noticed another thread where >someone has a grub error 22, and I suspect the same has happened to them >but on their /boot mount, they did not notice this and upgraded the >kernel :(. > >When you do a kernel update, I don't think it checks if /boot (should be >/ and is or not mounted, it just runs grub --install blah , causing >updated files to goto /boot in the "/" root partition - so be careful >when you update your kernel or your machine may not boot!. > >The reason I mentioned about mounting with in a GUI terminal was I >remember about two years ago there was a discussion about auto >mounter/kernel giving a different "view/mount points" per user (but I >assume you do it all from a root console. > >Anyway, I too noticed that my /boot (hda1) partition on my laptop gets >unmounted for no reason!, (kernel ver 2.6.17-1.2145_FC5), my desk top >has never had this problem (2.6.16-1.2133_FC5smp). > >Which kernel are you using ? - are you using RHEL ? > >Albert. > > >T. Horsnell wrote: >> Your last question prompted me to experiment. >> I do most of my sysadmin stuff from a remote terminal >> (its very cold in the machine room) and the console is >> usually left logged in for long periods. But what the >> experiment reveals is that when I log out of the console, >> it seems to reset the mount situation to the state it was >> at when the console was logged in. >> i.e. any filesystems that were manually mounted either >> from the console or a remote terminal, get dismounted. >> If they are manually mounted from a rmote terminal whilst >> the console is logged out, they remain so after console login/out. >> >> Is this to be expected? I thought this sort of thing only >> applied to removable media. My fstab entries are of the form: >> >> LABEL=/gn23 /gn23 ext3 defaults 1 2 >> >> Cheers, >> Terry. >> >> >>> They have entries in the fstab file and are intended to be >>> mounted at boot time. As I add new drives, I edit >>> fstab but mount them manually. If I do this at the console, >>> I'm in Gnome, but I also do it from an xterm window on >>> a different machine after ssh'ing to the Opteron box. >>> The machine hasnt been rebooted for nearly 3 months >>> and during that time I've added 20 - 30 disks. >>> T. >>> >>> >>>> Are these drives mounted form your /etc/fstab file or do you mount them >>>> manually, if manually, are you in KDE or Gnome at the time ? >>>> >>>> >>>> T. Horsnell wrote: >>>> >>>>>> Would you be using an auto mounter ? >>>>>> >>>>>> >>>>> Yes, but only to automount NFS disks exported by another box. >>>>> The disks that spontanously unmount are attached SCSI. >>>>> >>>>> >>>>> >>>>>> T. Horsnell wrote: >>>>>> >>>>>> >>>>>>> I'm gradually migrating my Alpha server over to an Opteron box running RHEL4. >>>>>>> This involves various disk juggling including hot-plugging SCSI disks on the >>>>>>> RH box. All the disks are in external shelves. Every now and then, some of >>>>>>> the filesystems on this box spontaneously unmount. Until now, the unmounts >>>>>>> seem to have been associated with adding/removing disks on the RH system >>>>>>> and I've been logging the mount situation every 5 mins to try and get a clue >>>>>>> why. However, during the the most recent unmount (5 filesystems unmounted) >>>>>>> I wasnt juggling any disks, but I see this in the messages log within the >>>>>>> 5 minute window during which the 5 filesystems disappeared. >>>>>>> Is this significant?: >>>>>>> >>>>>>> Jul 6 18:44:15 ls1 kernel: mtrr: type mismatch for fd000000,800000 old: write-back new: write-combining >>>>>>> >>>>>>> At the time, I was killing and restarting rhnsd because of an rpm lockup >>>>>>> due to a stalled up2date. This wasnt updating anything, just installing >>>>>>> xemacs, and I had to kill all processes which had /var/lib/rpm/__db* open >>>>>>> as reported by lsof. >>>>>>> >>>>>>> The 5 disks (one filesystem per disk) happen to be on 3 different Adaptec SCSI >>>>>>> adapters, and in 3 different Storcase disk shelves, so I dont suspect an >>>>>>> adapter fault or a disk-shelf fault. >>>>>>> >>>>>>> So far, Gooling and Bugzilla searching has shown up nothing, so >>>>>>> any clues/suggestions would be greatly appreciated. >>>>>>> >>>>>>> >>>>>>> Cheers, >>>>>>> Terry. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> -- >>>>>> fedora-list mailing list >>>>>> fedora-list@xxxxxxxxxx >>>>>> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> -- >>>> fedora-list mailing list >>>> fedora-list@xxxxxxxxxx >>>> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list >>>> >>>> >>> -- >>> fedora-list mailing list >>> fedora-list@xxxxxxxxxx >>> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list >>> >>> >> >> > >-- >fedora-list mailing list >fedora-list@xxxxxxxxxx >To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list >
