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Stacey Richards's questions

Martin Hope
Stacey Richards
Asked: 2009-09-05 21:49:47 +0800 CST
  • 2

I noticed that my processors were, in total, in use only about 50% of the time while making a Linux kernel.

I usually make the kernel, then make the modules.

I have just started a make bzImage in one terminal and a make modules in another and see that both my processors are in full use. I expect the total compile time will be a lot quicker as I'm compiling in parallel instead of serial.

Are there any "gotya's" that make this unsafe?

linux
Martin Hope
Stacey Richards
Asked: 2009-07-10 03:39:20 +0800 CST
  • 2

I have been using rsync over ssh (cygwin) for some time now from a Windows 2003 Server to back up files to a Debian box which has a USB hard drive attached.

The files are rsynced directly to the USB hard drive which is mounted as /media/backup on the Debian box.

The backup is run from a scheduled task on the Windows box and the stdout and stderr are output to files which are emailed to me after the backup completes.

Every now and again I see errors in the stderr file like:

rsync: failed to set times on "/media/backup/[some file name] ": Read-only file system (30)

for every file that has changed since the last backup.

When I see this error I unmount the drive and remount. That resolves the problem.

Can anyone enlighten me as to why this error occurs? i.e. Why would a USB drive become read-only once every couple of months?

windows linux rsync cygwin usb
Martin Hope
Stacey Richards
Asked: 2009-06-13 23:37:00 +0800 CST
  • 2

Using apt-get dist-upgrade to upgrade software on a server, I get the following error: 

Extracting templates from packages: 100%
Preconfiguring packages ...
(Reading database ... 28575 files and directories currently installed.)
Preparing to replace debianutils 2.8.4 (using .../debianutils_2.30_i386.deb) ...
Unpacking replacement debianutils ...
dpkg: error processing /var/cache/apt/archives/debianutils_2.30_i386.deb (--unpack):
 trying to overwrite `/usr/sbin/add-shell', which is also in package passwd
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/debianutils_2.30_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

I got a similar error some minutes prior with another package so I used apt-get remove to remove the package and then apt-get upgrade which seemed to get past that first little problem... Until it hit this next one. I can't use apt-get remove to remove debianutils as this is a core package and will break the system if removed.

Any pointers as to where to go from here?

debian apt