Re: [RDD] Paravel appliance: what is /altboot for?
On Monday 13 April 2015 04:35:55 pm Henry Law wrote: > The Paravel "appliance" installs itself with a /boot partition, which is > a common way to do things, and also an /altboot partition, which seems > to contain the same files and looks like a backup copy, though it's > permanently mounted. When there are two hard disks then /boot and > /altboot are on different volumes. > > Can anyone here suggest what it's for and why it's there? I haven't looked that deeply into Cent or RedHat, but I do know that QNX uses an altboot. In QNX, it *is* a separate root file system, such that the *system* can be booted for repair, whatever, in the event the normal root partition, OR needed system binaries become damaged for whatever reasons. One can boot altboot, mount the root partition, and fix it, much the same as booting a damaged linux box with the repair CD, or a Knoppix CD, except that an altboot gives you the same familiar system with known compatible binaries. User applications are not in altboot. Just the base system. altboot is normally not accessible by the root system, so is far less likely to be damaged or lost, barring a disk failure. Since Linux is a monolithic, it's far more vulnerable, far more likely a wrong or incompatible "driver" might be built in. ( such as the module that knows how to read and write the root file system ) As such, I would not eliminate it without a really, really good reason. -- Cowboy http://cowboy.cwf1.com We must remember the First Amendment which protects any shrill jackass no matter how self-seeking. -- F. G. Withington ___ Rivendell-dev mailing list Rivendell-dev@lists.rivendellaudio.org http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
Re: [RDD] rdairplay crash investigation
Have you looked in dmesg when rdairplay crashes? Usually the Linux kernel will log crashes there. On Wed, Mar 25, 2015 at 6:30 AM, Rob Landry <41001...@interpring.com> wrote: > > I have just looked at 14 Rivendell systems which I built and are currently > running a various stations. On two of them, rdairplay will crash > inexplicably while playing an audio file, leaving no trace in any log. > > On one of the machines, I tried upgrading to a more recent Rivendell > version, but that didn't help. I then took the hard drive and transferred > it into a different machine, effectively replacing all the hardware but > that drive; that didn't help, either. > > The other 12 machines don't have the problem; so, the question is: what do > the two crashers have in common? The answer seems to be that both are > running Rivendell under Debian 7 (Linux kernel 3.2.0) with ALSA. They are > the only ones of the 14 for which that is the case; six machines run Debian > 6 (Linux kernel 2.6.32); two run CentOS 6 (also Linux kernel 2.6.32); two > are 2007-vintage machines running OpenSUSE 10.2 and ancient Rivendell > versions; and the remaining two machines run Debian 7, but with ASI cards > and the asihpi driver. None of these other machines have experienced > rdairplay crashes. > > I had thought this might be a 32-bit problem, but it turns out that one of > the two crashers is running a 64-bit OS. So it seems to be the combination > of Debian 7 and ALSA that s troublesome. > > I am going to try rebuilding one of the two crashers with CentOS 6 and see > if the problem goes away. I've had a CentOS 6 machine running ALSA in Maine > for two years with no crashes. > > Any thoughts? > > > Rob > ___ > Rivendell-dev mailing list > Rivendell-dev@lists.rivendellaudio.org > http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev > ___ Rivendell-dev mailing list Rivendell-dev@lists.rivendellaudio.org http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
[RDD] Paravel appliance: what is /altboot for?
I don't think this is a CentOS question because googling [centos altboot] turns up nothing at all relevant, and that partition isn't in the recommended CentOS partitioning scheme; so I hope I'm posting this question in a relevant place. The Paravel "appliance" installs itself with a /boot partition, which is a common way to do things, and also an /altboot partition, which seems to contain the same files and looks like a backup copy, though it's permanently mounted. When there are two hard disks then /boot and /altboot are on different volumes. Can anyone here suggest what it's for and why it's there? I had a problem earlier today swapping a hard disk in a RAID array which was down to the presence of this /altboot thing, and I am looking for guidance as to whether it could be removed, and if so under what circumstances. -- Henry LawManchester, England ___ Rivendell-dev mailing list Rivendell-dev@lists.rivendellaudio.org http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
Re: [RDD] rdairplay crash investigation
I dumped liquidsoap for darkice. I can't get liquidsoap to play nice on Centos 6. Rob On Mon, 13 Apr 2015, Rob Landry wrote: Well, things aren't going well on the crash investigation front. I want to duplicate one of my Debian 7 machines using CentOS 6, but I'm finding it difficult, as many of the packages I need don't seem to be available for CentOS. It's taken me several days of work to get Rivendell to compile and run on this old hardware, and liquidsoap, which I had to compile from scratch, won't talk to JACK. It says: strange error flushing buffer... ERR: jack_wrapper.c::JACK_Error(793) zombified - calling shutdown handler ERR: jack_wrapper.c::JACK_Error(793) cannot read response from jack server (No such file or directory) Did I mention how much I hate "no such file or directory" messages that don't tell me what the file is, or where it's supposed to be? G... Does anyone know where I can find a precompiled 32-bit liquidsoap RPM for Centos 6? I don't trust the one I've compiled, and suspect there's a missing prerequisite that ./configure doesn't catch. Rob ___ Rivendell-dev mailing list Rivendell-dev@lists.rivendellaudio.org http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev ___ Rivendell-dev mailing list Rivendell-dev@lists.rivendellaudio.org http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
[RDD] Feature Request
Hello all, Not sure if this has been asked before but I was wondering if perhaps the ability to spit out an Australian APRA report could be added to RD. This would certainly make quarterly reporting for APRA a huge help. Cheers, Lee ___ Rivendell-dev mailing list Rivendell-dev@lists.rivendellaudio.org http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
Re: [RDD] rdairplay crash investigation
Well, things aren't going well on the crash investigation front. I want to duplicate one of my Debian 7 machines using CentOS 6, but I'm finding it difficult, as many of the packages I need don't seem to be available for CentOS. It's taken me several days of work to get Rivendell to compile and run on this old hardware, and liquidsoap, which I had to compile from scratch, won't talk to JACK. It says: strange error flushing buffer... ERR: jack_wrapper.c::JACK_Error(793) zombified - calling shutdown handler ERR: jack_wrapper.c::JACK_Error(793) cannot read response from jack server (No such file or directory) Did I mention how much I hate "no such file or directory" messages that don't tell me what the file is, or where it's supposed to be? G... Does anyone know where I can find a precompiled 32-bit liquidsoap RPM for Centos 6? I don't trust the one I've compiled, and suspect there's a missing prerequisite that ./configure doesn't catch. Rob ___ Rivendell-dev mailing list Rivendell-dev@lists.rivendellaudio.org http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
