Results 1 to 2 of 2

Thread: Run with ramdisk, update persistent store instead of ramdisk

  1. #1
    Senior Member registered user
    Join Date
    Sep 2006
    Posts
    802

    Run with ramdisk, update persistent store instead of ramdisk

    The traditional way of using persistent store has been to remaster seldom, if at all, and use a rather "large" (as compared to the sizes of short time changes) persistent store, typically 4 GB for FAT32 compatibility. I have usuallly done a couple (1-4) of remasterings of each Knoppix version, and the option of running with just ramdisk has been for special occasions only. I could use the ramdisk -> overlay technique, but I don't find it very useful for me.

    With Debian live and much more frequent squashfs remasterings, I have started to look at ramdisk use in another way. Right after a remastering, it won't make much difference whether you run with ramdisk or persistent store, and there may be a few advantages to decide only afterwards whether you want to keep the changes. Also. the need for space is rather limited, it is mostly for program installs and upgrades - almost all user space files (except for init/configuration stuff) are kept on volumes that are mounted the ordinary way.

    An alternative way of using persistent store/ramdisk could be to read the content of the persistent store into the ramdisk on startup, run from ramdisk and have the option to save to persistent store as needed, typically with a question about saving on shutdown. Most of the time, I would choose not to save.

    Reading from persistent store into the ramdisk takes some time, but with my use, typically below 1 GB used on persistent and SSD disks, it would take only a few seconds. And the machine would run faster.

    My total uncompressed system size is around 10 GB. That includes Oracle XE 11g and VMware workstation 10. With default squashfs compression, I have yet to approach the 4GB "limit", but the system is rather bloat-free.

  2. #2
    Senior Member registered user
    Join Date
    May 2006
    Location
    Columbia, Maryland USA
    Posts
    1,631
    Greetings, Capricorny.

    I think you might find MX-14 interesting even though it is
    currently a 32-bit Live system, it has built-in persistence
    and re-mastering capabilities. The author
    of the MX's init is BitJam, who gives Klaus K credit for inspiring it.
    With a fat32 base, it has a 4G filesize limit. Uses squashfs for
    saving compressed linuxfs, remasterings. Choice at boot on
    different persistence combinations.

    See http://mepiscommunity.org/mx.

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 - 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 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...

$242.99



DELL Optiplex 3070 SFF 6 Core i5-9500 3.00 Ghz 8GB,NVMe 128GB,Win11Pro picture

DELL Optiplex 3070 SFF 6 Core i5-9500 3.00 Ghz 8GB,NVMe 128GB,Win11Pro

$99.99



Intel Xeon E5-2667 V2 LGA 2011 3.3GHz 8 Core 130W 25MB 8GT/s CPU Processor picture

Intel Xeon E5-2667 V2 LGA 2011 3.3GHz 8 Core 130W 25MB 8GT/s CPU Processor

$24.00



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

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

$163.00



Apple iMac 24

Apple iMac 24" (256GB SSD, M1, 8GB, 8-Core GPU) Yellow - MGPF3LL/A - LOCKED

$450.00



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