Results 1 to 6 of 6

Thread: The update-rc.d command not working on KNOPPIX 7.4.2?!

  1. #1

    The update-rc.d command not working on KNOPPIX 7.4.2?!

    Hi, folks:

    I just came across the mentioned problem while using a persistent overlay to do a mock test on my re-mastering procedure. Apparently, it works on KNOPPIX 7.2 as some messages were spitted out after executing this command in terminal, while on 7.4.2 there wasn't even a single error message when I tried to remove a non-existent symbolic link. Besides, by looking at the time stamps of the symlinks in the /etc/rc[0-6S].d folders, it seems to me that the existing symlinks were created during the mastering stage.

    So, I wonder if the update-rc.d command only works in the chroot environment (in the context of KNOPPIX 7.4.2). Any pointers will be much appreciated.


    ATB,

  2. #2
    Moderator Moderator
    Join Date
    Nov 2010
    Location
    Germany/ Dietzenbach
    Posts
    1,124
    .. there wasn't even a single error message when I tried to remove a non-existent symbolic link.
    You've forgot to tell us in detail, what you really did. And, have you studied "man update-rc.d"?

  3. #3
    Thanks for the reply, Werner.

    Well... if I still remember right, reading the user's manual before using any piece of equipment is still one of the golden rules on my book. So, no worries, I got that part (man update-rc.d) covered. But I am wrong about the failure of spitting out error message when a non-existent symlink is being removed. Ideally, it emits an error message when an existing symlink whose target is still in place is about to be deleted; in fact, it never do so, regardless of the version of KNOPPIX.

    Removing the virtualbox symlinks in /etc/rc*.d is actually what I would like to do. According to the man page of update-rc.d, it shall remove the named symlink, regardless of the existence of /etc/init.d/virtualbox, if the -f argument has also been given. To be crystal clear, the files (/etc/init.d/virtualbox) from VBox 4.2.10+dfsg-1 and 4.3.14+dfsg-1 are identical. So, it's unlikely that the content of the script causes the problem. To be more certain, all the symlinks in /etc/rc?.d are supposed to be wiped out by the following code:
    Code:
    # with root privilege
    INSANE=`find /etc/rc?.d -type l | sed 's/.*[SK][0-9][0-9]//' | sort | uniq`
    for i in $INSANE ; do update-rc.d -f "$i" remove ; done
    It isn't surprising to see all the symlinks are still intact. So, it seems to me that the update-rc.d and/or its related scripts are where the problem lies. For some reason, removing symlink is the only thing it cannot do.


    ATB,

  4. #4
    Moderator Moderator
    Join Date
    Nov 2010
    Location
    Germany/ Dietzenbach
    Posts
    1,124
    I've tested it for myself, and yes, update-rc.d (part of sysv-rc 2.88dsf-53) within Knoppix 7.4.2 is buggy and neither the option "-n" nor the parameter "remove" works. Within Knoppix 7.2.0 there is sysv-rc 2.88dsf-41.

  5. #5
    Many thanks for your time, Werner. The sysvc-rc shipped with 7.4.2 is KNOPPIX's own breed; I don't really mind the removal function isn't working , and just need to keep an eye on those folders and remove the symlinks after purging the packages.


    --- Really Off Topics ---
    To folks who have been following this thread:

    Check out KNOPPIX's own repository for the patched version of xscreensaver if you are tired of the "very old" warning message.


    ATB,

  6. #6
    Moderator Moderator
    Join Date
    Nov 2010
    Location
    Germany/ Dietzenbach
    Posts
    1,124

    OT (The update-rc.d command)

    Check out KNOPPIX's own repository
    For people who don't know this server:
    http://debian-knoppix.alioth.debian....kages/?C=M;O=D

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Dell PowerEdge R640 NVMe Server 2.10Ghz 8-Core 96GB 10x 1.6TB NVMe SSD HBA330 picture

Dell PowerEdge R640 NVMe Server 2.10Ghz 8-Core 96GB 10x 1.6TB NVMe SSD HBA330

$3133.65



Intel Xeon E-2288G Processor CPU 8-Core 3.70GHz~5.0GHz LGA-1151 TDP-95W P630 picture

Intel Xeon E-2288G Processor CPU 8-Core 3.70GHz~5.0GHz LGA-1151 TDP-95W P630

$868.62



Intel - Core i7-13700K 13th Gen 16 cores 8 P-cores + 8 E-cores 30M Cache, 3.4... picture

Intel - Core i7-13700K 13th Gen 16 cores 8 P-cores + 8 E-cores 30M Cache, 3.4...

$364.99



Intel - Core i9-13900K 13th Gen 24 cores 8 P-cores + 16 E-cores 36M Cache, 3 ... picture

Intel - Core i9-13900K 13th Gen 24 cores 8 P-cores + 16 E-cores 36M Cache, 3 ...

$519.99



Intel - Core i9-12900K Desktop Processor 16 (8P+8E) Cores up to 5.2 GHz Unloc... picture

Intel - Core i9-12900K Desktop Processor 16 (8P+8E) Cores up to 5.2 GHz Unloc...

$331.99



Intel - Core i7-12700K Desktop Processor 12 (8P+4E) Cores up to 5.0 GHz Unloc... picture

Intel - Core i7-12700K Desktop Processor 12 (8P+4E) Cores up to 5.0 GHz Unloc...

$236.99



AMD Ryzen™ 7 5700X 8-Core, 16-Thread Unlocked Desktop Processor picture

AMD Ryzen™ 7 5700X 8-Core, 16-Thread Unlocked Desktop Processor

$169.99



Intel Core i7-7700 (SR338) 3.6GHz Intel Quad Core 8MB Socket LGA 1151 Processor picture

Intel Core i7-7700 (SR338) 3.6GHz Intel Quad Core 8MB Socket LGA 1151 Processor

$69.99



Dell Desktop Computer 16GB RAM 512GB SSD Intel Core i5 8th Gen. Windows 11 Pro picture

Dell Desktop Computer 16GB RAM 512GB SSD Intel Core i5 8th Gen. Windows 11 Pro

$250.00



HP Z820 8-Core 2.60GHz E5-2670 128GB RAM No HDD No OS picture

HP Z820 8-Core 2.60GHz E5-2670 128GB RAM No HDD No OS

$214.82