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
  •  


MITS Altair 8800 Computer Bamboo Reproduction Untouched W/ Simulator Manuals picture

MITS Altair 8800 Computer Bamboo Reproduction Untouched W/ Simulator Manuals

$1500.00



S-100 backplane motherboard bare PCB 9 slot (for Altair/IMSAI) picture

S-100 backplane motherboard bare PCB 9 slot (for Altair/IMSAI)

$30.00



MITS ALTAIR 8800  Original Vintage Microcomputer with 14 boards - Buy It Now picture

MITS ALTAIR 8800 Original Vintage Microcomputer with 14 boards - Buy It Now

$9500.00



MITS ALTAIR 8800  Original Vintage Microcomputer  S-100   Buy It Now $5999 picture

MITS ALTAIR 8800 Original Vintage Microcomputer S-100 Buy It Now $5999

$5999.00



Technical Design Labs System Monitor Board TDL SMB S-100 Altair IMSAI EPROM Mod picture

Technical Design Labs System Monitor Board TDL SMB S-100 Altair IMSAI EPROM Mod

$349.99



MITS Altair Computer Notes Magazine Aug . 1976 Volume 2 Issue 3 ORIGINAL VTG picture

MITS Altair Computer Notes Magazine Aug . 1976 Volume 2 Issue 3 ORIGINAL VTG

$75.00



MITS Altair Computer Notes Magazine Oct . 1976 Volume 2 Issue 5 ORIGINAL VTG picture

MITS Altair Computer Notes Magazine Oct . 1976 Volume 2 Issue 5 ORIGINAL VTG

$75.00



MITS Altair Computer Notes Magazine Nov./Dec. 1975 Volume 1 Issue 6 ORIGINAL VTG picture

MITS Altair Computer Notes Magazine Nov./Dec. 1975 Volume 1 Issue 6 ORIGINAL VTG

$125.00



VINTAGE DEC 1975 VOL 1 ISSUE 1 SCCS INTERFACE MAGAZINE MITS ALTAIR COVER & ADS picture

VINTAGE DEC 1975 VOL 1 ISSUE 1 SCCS INTERFACE MAGAZINE MITS ALTAIR COVER & ADS

$359.99



1980 Build an Intel 8080 Microcomputer TIL311 LED Altair 8800 IMS Vintage picture

1980 Build an Intel 8080 Microcomputer TIL311 LED Altair 8800 IMS Vintage

$32.99