Re: Can OpenBSD run in 24 MB of RAM?
Andrew Daugherity escreveu: On Wed, Sep 3, 2008 at 10:00 PM, [EMAIL PROTECTED] wrote: I've searched the FAQ and the Web for any guidance on what the minimum RAM is for OpenBSD, with and without X. I just acquired a Compaq Armada 1125 laptop that maxes out at 24 MB of RAM, and I'm wondering whether or not it's feasible to run OpenBSD on it. My router for several years was an IBM PS/2E, model 9533 with a 50MHz 486 SLC2 + 25MHz 387SX FPU(not a typo) and 16MB RAM. I haven't run anything newer than about 3.8 or 3.9 on it, but it worked fine then, including the install. I'm sure I've posted in more detail about it before -- check the archives. Heck, I even ran X on it as a see if it works thing, but it wasn't good for anything more than opening a couple xterms. The reason I abandoned it is that when faster connections became available, the CPU couldn't keep up. It would only pass about 2Mbit of traffic before the interrupts from the ethernet cards (16-bit PCMCIA, essentially ISA) consumed 90% CPU. Almost the same with me but, in my case, the machine was a pentium 133Mhz with 64MB of memory. But i was doing QoS. My advice: Don't use qos on limited hardware machines with ISA Network Cards. Simply don't use. It will, sometime, consume all cpu. It's not even memory the problem, it's CPU. And my connection wasn't that fast. But it's interesting to listen about these experiences. -- Giancarlo Razzolini http://lock.razzolini.adm.br Linux User 172199 Red Hat Certified Engineer no:804006389722501 Verify:https://www.redhat.com/certification/rhce/current/ Moleque Sem Conteudo Numero #002 OpenBSD Stable Ubuntu 8.04 Hardy Heron 4386 2A6F FFD4 4D5F 5842 6EA0 7ABE BBAB 9C0E 6B85
Re: Can OpenBSD run in 24 MB of RAM?
On Wed, Sep 3, 2008 at 10:00 PM, [EMAIL PROTECTED] wrote: I've searched the FAQ and the Web for any guidance on what the minimum RAM is for OpenBSD, with and without X. I just acquired a Compaq Armada 1125 laptop that maxes out at 24 MB of RAM, and I'm wondering whether or not it's feasible to run OpenBSD on it. My router for several years was an IBM PS/2E, model 9533 with a 50MHz 486 SLC2 + 25MHz 387SX FPU(not a typo) and 16MB RAM. I haven't run anything newer than about 3.8 or 3.9 on it, but it worked fine then, including the install. I'm sure I've posted in more detail about it before -- check the archives. Heck, I even ran X on it as a see if it works thing, but it wasn't good for anything more than opening a couple xterms. The reason I abandoned it is that when faster connections became available, the CPU couldn't keep up. It would only pass about 2Mbit of traffic before the interrupts from the ethernet cards (16-bit PCMCIA, essentially ISA) consumed 90% CPU.
Re: Can OpenBSD run in 24 MB of RAM?
Hello Shr, Wednesday, September 3, 2008, 10:00:22 PM, you wrote: sdc I've searched the FAQ and the Web for any guidance on what the minimum RAM sdc is for OpenBSD, with and without X. sdc I just acquired a Compaq Armada 1125 laptop that maxes out at 24 MB of sdc RAM, and I'm wondering whether or not it's feasible to run OpenBSD on it. $ dmesg OpenBSD 3.5 (GENERIC) #34: Mon Mar 29 12:24:55 MST 2004 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel 486DX (486-class) real mem = 20824064 (20336K) avail mem = 13275136 (12964K) using 279 buffers containing 1142784 bytes (1116K) of memory mainbus0 (root) bios0 at mainbus0: AT/286+(00) BIOS, date 01/10/94 pcibios at bios0 function 0x1a not configured bios0: ROM list: 0xc/0x8000 isa0 at mainbus0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard vga0 at isa0 port 0x3b0/48 iomem 0xa/131072 wsdisplay0 at vga0: console (80x25, vt100 emulation), using wskbd0 wsdisplay0: screen 1-5 added (80x25, vt100 emulation) wdc0 at isa0 port 0x1f0/8 irq 14 wd0 at wdc0 channel 0 drive 0: WDC AC21600H wd0: 16-sector PIO, LBA, 1549MB, 3173184 sectors wd1 at wdc0 channel 0 drive 1: QUANTUM FIREBALL EX5.1A wd1: 16-sector PIO, LBA, 4892MB, 10018890 sectors wd0(wdc0:0:0): using BIOS timings wd1(wdc0:0:1): using BIOS timings ep0 at isa0 port 0x300/16 irq 10: address 00:20:af:27:c1:5d, utp/aui/bnc (default utp) pcppi0 at isa0 port 0x61 midi0 at pcppi0: PC speaker sysbeep0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: using exception 16 pccom0 at isa0 port 0x3f8/8 irq 4: ns16450, no fifo pccom1 at isa0 port 0x2f8/8 irq 3: ns16450, no fifo fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec biomask 4040 netmask 4440 ttymask 44c2 pctr: no performance counters in CPU dkcsum: wd0 matched BIOS disk 80 dkcsum: wd1 matched BIOS disk 81 root on wd0a rootdev=0x0 rrootdev=0x300 rawdev=0x302 $ swapctl -kl Device 1K-blocks UsedAvail Capacity Priority swap_device102312 442097892 4%0 $ uptime 10:07AM up 378 days, 16:48, 1 user, load averages: 0.20, 0.21, 0.14 It's 486DX4 50MHz with 20 meg of RAM, working as a production (!) secondary mail/DNS server. Has been used (and occasionally being used) as an ftp server (vsftp) - login process is slow, but transfer(s) at full T1 speed causing no problem. I've installed a GENERIC 3.5 from floppy/ftp very easily. Modern boxes are giving me much more troubles. There is no X, of course. Don't know if OBSD 4.4 require much more resources than 3.5, but the size of GENERIC kernel is just a little bigger. -- Best regards, Borismailto:[EMAIL PROTECTED]
Re: Can OpenBSD run in 24 MB of RAM?
It's running fine in console or X (just a longer start).Ofcourse,that you can't use Firefox or similiar SW :-) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, September 04, 2008 5:00 AM To: misc@openbsd.org Subject: Can OpenBSD run in 24 MB of RAM? I've searched the FAQ and the Web for any guidance on what the minimum RAM is for OpenBSD, with and without X. I just acquired a Compaq Armada 1125 laptop that maxes out at 24 MB of RAM, and I'm wondering whether or not it's feasible to run OpenBSD on it.
Re: Can OpenBSD run in 24 MB of RAM?
[EMAIL PROTECTED] wrote: I've searched the FAQ and the Web for any guidance on what the minimum RAM is for OpenBSD, with and without X. I just acquired a Compaq Armada 1125 laptop that maxes out at 24 MB of RAM, and I'm wondering whether or not it's feasible to run OpenBSD on it. From ftp://ftp.openbsd.org/pub/OpenBSD/4.3/i386/INSTALL.i386: The minimal configuration to install the system is 24MB or 32MB of RAM and perhaps 200MB of disk space. To install the entire system requires much more disk space, and to run X or compile the system, more RAM is recommended. So, OpenBSD will run. It's going to be slow, it's only a Pentium 100. I ran OpenBSD on a P133 for a while, I had to run the older version of X because the video wasn't supported by the new version, not sure if that's still the case. Patience will be important.
Re: Can OpenBSD run in 24 MB of RAM?
Steve Shockley [EMAIL PROTECTED] writes: So, OpenBSD will run. It's going to be slow, it's only a Pentium 100. I ran OpenBSD on a P133 for a while, I had to run the older version of X because the video wasn't supported by the new version, not sure if that's still the case. The archives will reveal that around 2.5-2.7 times (cant't remember exactly), some of us have installed and (briefly) run OpenBSD on i386/33 with all of 8MB of RAM, and I think even the trick for making the installer complete under these conditions made it into the FAQ at least for a while. Not recommended, but apparently doable, FSVO. Patience will be important. Oh yes, loads of it. By the time you've actually gotten a system with that spec to do something marginally useful, something much more recent is bound to have fallen into your lap for free. -- Peter N. M. Hansteen, member of the first RFC 1149 implementation team http://bsdly.blogspot.com/ http://www.bsdly.net/ http://www.nuug.no/ Remember to set the evil bit on all malicious network traffic delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds.
Re: Can OpenBSD run in 24 MB of RAM?
Peter N. M. Hansteen escreveu: Steve Shockley [EMAIL PROTECTED] writes: So, OpenBSD will run. It's going to be slow, it's only a Pentium 100. I ran OpenBSD on a P133 for a while, I had to run the older version of X because the video wasn't supported by the new version, not sure if that's still the case. The archives will reveal that around 2.5-2.7 times (cant't remember exactly), some of us have installed and (briefly) run OpenBSD on i386/33 with all of 8MB of RAM, and I think even the trick for making the installer complete under these conditions made it into the FAQ at least for a while. Not recommended, but apparently doable, FSVO. Patience will be important. Oh yes, loads of it. By the time you've actually gotten a system with that spec to do something marginally useful, something much more recent is bound to have fallen into your lap for free. Never ran with 24MB, but note mentioned that I've run an openbsd firewall on a pentium 133, with 32MB of ram. It had everything a firewall for home uses need, DNS, DHCP and the firewall rules. I've upgraded to 64MB so i could run a squid proxy, apache server and openvpn server. Ran it for more than a year. OpenBSD is a very small footprint operational system. I believe it will run in 24MB with no problems. My regards, -- Giancarlo Razzolini http://lock.razzolini.adm.br Linux User 172199 Red Hat Certified Engineer no:804006389722501 Verify:https://www.redhat.com/certification/rhce/current/ Moleque Sem Conteudo Numero #002 OpenBSD Stable Ubuntu 8.04 Hardy Heron 4386 2A6F FFD4 4D5F 5842 6EA0 7ABE BBAB 9C0E 6B85
Re: Can OpenBSD run in 24 MB of RAM?
2008/9/4 Peter N. M. Hansteen [EMAIL PROTECTED]: Steve Shockley [EMAIL PROTECTED] writes: So, OpenBSD will run. It's going to be slow, it's only a Pentium 100. I ran OpenBSD on a P133 for a while, I had to run the older version of X because the video wasn't supported by the new version, not sure if that's still the case. The archives will reveal that around 2.5-2.7 times (cant't remember exactly), some of us have installed and (briefly) run OpenBSD on i386/33 with all of 8MB of RAM, and I think even the trick for making the installer complete under these conditions made it into the FAQ at least for a while. Not recommended, but apparently doable, FSVO. Patience will be important. Oh yes, loads of it. By the time you've actually gotten a system with that spec to do something marginally useful, something much more recent is bound to have fallen into your lap for free. I did for a time run a 133MHz Pentium 1 clone PF firewall with a 210MB HDD and 48 MB RAM. I don't recommend using such a puny HDD. Even promotional freebie USB sticks are probably 512MB these days, and you really do want at least 512MB HDD space (of course bigger still is a lot better), because otherwise there is so much stuff that you probably would want and just cannot install. As for the RAM and the speed, I found the above quite acceptable for my home network purposes (no X11) once I gave it a bigger HDD. Of course OpenBSD will also put a better CPU and more RAM to excellent use, but based on my personal experience I would consider a Pentium 1 with 512MB HDD and 48 MB RAM the minimum for very basic 10/100 Megabit home network PF stuff. It's possible that even 24MB RAM will work ok for you, I just haven't tried it. YMMV. regards, --ropers
Re: Can OpenBSD run in 24 MB of RAM?
Oh come on .. there's no challenge in 16M. Less, that's where it gets really interesting (if you're in to BSDM, of course ;) OpenBSD 4.4-beta (GENERIC) #0: Thu Jul 10 11:55:18 CEST 2008 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel(R) Core(TM)2 Duo CPU T8300 @ 2.40GHz (GenuineIntel 686-class) 2.40 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,SSE3,DS-CPL,CX16 real mem = 16281600 (15MB) avail mem = 5730304 (5MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 04/10/07, BIOS32 rev. 0 @ 0xfd880, SMBIOS rev. 2.31 @ 0xe0010 (45 entries) bios0: vendor Phoenix Technologies LTD version 6.00 date 04/10/2007 bios0: VMware, Inc. VMware Virtual Platform apm0 at bios0: Power Management spec V1.2 apm0: battery life expectancy 99% apm0: AC on, battery charge high acpi at bios0 function 0x0 not configured pcibios0 at bios0: rev 2.1 @ 0xfd880/0x780 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdf30/176 (9 entries) pcibios0: PCI Interrupt Router at 000:07:0 (Intel 82371FB ISA rev 0x00) pcibios0: PCI bus #2 is the last bus bios0: ROM list: 0xc/0x8000 0xc8000/0x1000 0xdc000/0x4000! 0xe/0x4000! vmt0 at mainbus0 cpu0 at mainbus0 pci0 at mainbus0 bus 0: configuration mode 1 (no bios) pchb0 at pci0 dev 0 function 0 Intel 82443BX AGP rev 0x01 ppb0 at pci0 dev 1 function 0 Intel 82443BX AGP rev 0x01 pci1 at ppb0 bus 1 piixpcib0 at pci0 dev 7 function 0 Intel 82371AB PIIX4 ISA rev 0x08 pciide0 at pci0 dev 7 function 1 Intel 82371AB IDE rev 0x01: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility wd0 at pciide0 channel 0 drive 0: VMware Virtual IDE Hard Drive wd0: 64-sector PIO, LBA, 1024MB, 2097152 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets, initiator 7 cd0 at scsibus0 targ 0 lun 0: NECVMWar, VMware IDE CDR10, 1.00 ATAPI 5/cdrom removable cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2 piixpm0 at pci0 dev 7 function 3 Intel 82371AB Power rev 0x08: SMBus disabled vga1 at pci0 dev 15 function 0 VMware Virtual SVGA II rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) bha3 at pci0 dev 16 function 0 BusLogic MultiMaster rev 0x01: irq 11, BusLogic 9xxC SCSI bha3: model BT-958, firmware 5.07B bha3: sync, parity scsibus1 at bha3: 8 targets, initiator 7 ppb1 at pci0 dev 17 function 0 VMware Virtual PCI-PCI rev 0x02 pci2 at ppb1 bus 2 vic0 at pci2 dev 0 function 0 AMD 79c970 PCnet-PCI rev 0x10: irq 9, address 00:0c:29:ff:4d:0d eap0 at pci2 dev 1 function 0 Ensoniq AudioPCI97 rev 0x02: irq 10 ac97: codec id 0x43525913 (Cirrus Logic CS4297A rev 3) audio0 at eap0 midi0 at eap0: AudioPCI MIDI UART isa0 at piixpcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pmsi0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pmsi0 mux 0 pcppi0 at isa0 port 0x61 midi1 at pcppi0: PC speaker spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 biomask e965 netmask eb65 ttymask fbff mtrr: Pentium Pro MTRR support softraid0 at root root on wd0a swap on wd0b dump on wd0b (i'll admit that this one was installed with 256M .. but it's a GENERIC kernel and it boots with the default daemons and gettys etc, including ntpd). Cheers, Paul 'WEiRD' de Weerd PS: BSDM = BSD Masochism On Thu, Sep 04, 2008 at 11:22:14AM -0300, Giancarlo Razzolini wrote: | Peter N. M. Hansteen escreveu: | Steve Shockley [EMAIL PROTECTED] writes: | | | So, OpenBSD will run. It's going to be slow, it's only a Pentium | 100. I ran OpenBSD on a P133 for a while, I had to run the older | version of X because the video wasn't supported by the new version, | not sure if that's still the case. | | | The archives will reveal that around 2.5-2.7 times (cant't remember | exactly), some of us have installed and (briefly) run OpenBSD on | i386/33 with all of 8MB of RAM, and I think even the trick for making | the installer complete under these conditions made it into the FAQ at | least for a while. Not recommended, but apparently doable, FSVO. | | | Patience will be important. | | | Oh yes, loads of it. By the time you've actually gotten a system with | that spec to do something marginally useful, something much more | recent is bound to have fallen into your lap for free. | | | Never ran with 24MB, but note mentioned that I've run an openbsd | firewall on a pentium 133, with 32MB of ram. It had everything a | firewall for home uses need, DNS, DHCP and the firewall rules. I've | upgraded to 64MB so i could
Re: Can OpenBSD run in 24 MB of RAM?
On 2008-09-04, Giancarlo Razzolini [EMAIL PROTECTED] wrote: Never ran with 24MB, but note mentioned that I've run an openbsd firewall on a pentium 133, with 32MB of ram. It had everything a firewall for home uses need, DNS, DHCP and the firewall rules. I've upgraded to 64MB so i could run a squid proxy, apache server and openvpn server. Ran it for more than a year. OpenBSD is a very small footprint operational system. I believe it will run in 24MB with no problems. I had problems on a 32MB soekris 4526 just using it as an access point. bridge + hostap + that's it. but with swap available you could do more. I don't know how the installer will do with that little RAM; you may have to install the OS onto the hard drive on a machine with more. It's not going to make a normal workstation, that's for sure, but there are things you can do with it. X server, running apps remotely? perhaps, though I think you still have to be careful what you run. Basic router or nat gateway? maybe, but the network interfaces on that sort of laptop are going to suck. Cheap smallish device to leave at a colo site for when you need serial console access to machines? Got/can add USB? simple one-wire sensor controller with uow(4)? The cheapest Eee is considerably better-spec, of course...
Re: Can OpenBSD run in 24 MB of RAM?
On Thu, Sep 04, 2008 at 04:46:07PM +0200, Paul de Weerd wrote: | Oh come on .. there's no challenge in 16M. Less, that's where it gets | really interesting (if you're in to BSDM, of course ;) OK, at 8MB it runs with a non-GENERIC kernel, still booting with all the default services (including ntpd). Logging in over ssh is slow as molasses, but it works (swap is not an option - it's mandatory now ;) This kernel actually has useful options (ipv6, pf, vlan, briding, etc) enabled. It weighs in at 1663498 bytes. You can probably get smaller but not by much. The first idiot to send me a dmesg of a working (real, no VMWare trickery like I'm doing) machine with less memory can come by to pick up a better machine (at least with more RAM) for free. (I may have more machines I want to get rid of and am too lazy to take out to the trash, first come first served) That's it for today, I'm done with BSDM for now ;) Cheers, Paul 'WEiRD' de Weerd OpenBSD 4.4-current (I_AM_IDIOT) #1: Thu Sep 4 18:04:18 CEST 2008 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/I_AM_IDIOT cpu0: Intel(R) Core(TM)2 Duo CPU T8300 @ 2.40GHz (GenuineIntel 686-class) 2.40 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,SSE3,DS-CPL,CX16 real mem = 7892992 (7MB) avail mem = 3051520 (2MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 04/10/07, BIOS32 rev. 0 @ 0xfd880, SMBIOS rev. 2.31 @ 0xe0010 (45 entries) bios0: vendor Phoenix Technologies LTD version 6.00 date 04/10/2007 bios0: VMware, Inc. VMware Virtual Platform pcibios0 at bios0: rev 2.1 @ 0xfd880/0x780 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdf30/176 (9 entries) pcibios0: PCI Interrupt Router at 000:07:0 (vendor 0x8086 product 0x122e rev 0x00) pcibios0: PCI bus #2 is the last bus bios0: ROM list: 0xc/0x8000 0xc8000/0x1000 0xdc000/0x4000! 0xe/0x4000! cpu0 at mainbus0 pci0 at mainbus0 bus 0: configuration mode 1 (no bios) pchb0 at pci0 dev 0 function 0 vendor 0x8086 product 0x7190 rev 0x01 ppb0 at pci0 dev 1 function 0 vendor 0x8086 product 0x7191 rev 0x01 pci1 at ppb0 bus 1 piixpcib0 at pci0 dev 7 function 0 vendor 0x8086 product 0x7110 rev 0x08 pciide0 at pci0 dev 7 function 1 vendor 0x8086 product 0x7111 rev 0x01: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility wd0 at pciide0 channel 0 drive 0: VMware Virtual IDE Hard Drive wd0: 64-sector PIO, LBA, 1024MB, 2097152 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 drive at pciide0 channel 1 drive 0 not configured pciide0: channel 1 disabled (no drives) vendor 0x8086 product 0x7113 (class bridge subclass miscellaneous, rev 0x08) at pci0 dev 7 function 3 not configured vga0 at pci0 dev 15 function 0 vendor 0x15ad product 0x0405 rev 0x00 wsdisplay0 at vga0 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) vendor 0x104b product 0x1040 (class mass storage subclass SCSI, rev 0x01) at pci0 dev 16 function 0 not configured ppb1 at pci0 dev 17 function 0 vendor 0x15ad product 0x0790 rev 0x02 pci2 at ppb1 bus 2 vic0 at pci2 dev 0 function 0 vendor 0x1022 product 0x2000 rev 0x10: irq 9, address 00:0c:29:ff:4d:0d vendor 0x1274 product 0x1371 (class multimedia subclass audio, rev 0x02) at pci2 dev 1 function 0 not configured isa0 at piixpcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 biomask fde5 netmask ffe5 ttymask mtrr: Pentium Pro MTRR support root on wd0a swap on wd0b dump on wd0b -- [++-]+++.+++[---].+++[+ +++-].++[-]+.--.[-] http://www.weirdnet.nl/
Re: Can OpenBSD run in 24 MB of RAM?
Hi! On Thu, Sep 04, 2008 at 06:19:30PM +0200, Paul de Weerd wrote: On Thu, Sep 04, 2008 at 04:46:07PM +0200, Paul de Weerd wrote: | Oh come on .. there's no challenge in 16M. Less, that's where it gets | really interesting (if you're in to BSDM, of course ;) OK, at 8MB it runs with a non-GENERIC kernel, still booting with all the default services (including ntpd). Logging in over ssh is slow as molasses, but it works (swap is not an option - it's mandatory now ;) That were times when encrypted/kerberized telnet was really useful, back then, when I really used small boxen as router. Even with more RAM, ssh was *slow* (because of CPU) on some boxen, while e/k telnet was quite fast still. [...] The first idiot to send me a dmesg of a working (real, no VMWare trickery like I'm doing) machine with less memory can come by to pick up a better machine (at least with more RAM) for free. (I may have more machines I want to get rid of and am too lazy to take out to the trash, first come first served) About 10 years ago, I built a dedicated bridge-only system, using a 386 or 486 (don't remember any more, it was at times when obsd actually *did* run, when GPL_MATH_EMU wasn't dropped from the kernel yet). It ran on *4* MB of RAM, highly custom kernel, of course. Floppy only, no hard disk. The only way to fix/customize the box was to generate a new floppy image on my build host. The floppy was derived from the very old kernel install stuff (crunchgen/crunchide based binary, initialization shell script, but not ramdisk, but floppy as root filesystem!). IIRC the box could be run without any fan, i.e. noiseless, and bridged 2 10-mbit coax based ethernets quite fine (fine in relation to what was fine *then*!). Kind regards, Hannah.
Re: Can OpenBSD run in 24 MB of RAM?
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Stuart Henderson Sent: Thursday, September 04, 2008 12:11 PM To: misc@openbsd.org Subject: Re: Can OpenBSD run in 24 MB of RAM? On 2008-09-04, Giancarlo Razzolini [EMAIL PROTECTED] wrote: Never ran with 24MB, but note mentioned that I've run an openbsd firewall on a pentium 133, with 32MB of ram. It had everything a firewall for home uses need, DNS, DHCP and the firewall rules. I've upgraded to 64MB so i could run a squid proxy, apache server and openvpn server. Ran it for more than a year. OpenBSD is a very small footprint operational system. I believe it will run in 24MB with no problems. I had problems on a 32MB soekris 4526 just using it as an access point. bridge + hostap + that's it. but with swap available you could do more. I run my home router with 32MB of RAM, it does require some swap though. I'm running dhcpd, ntpd, pf, named, and two bitchx clients. The heavy hitter on RAM being named, it's currently using around 17MB I've been meaning to change over to djbdns, I just haven't yet. Everything runs smoothly as is. load averages: 0.09, 0.18, 0.14 28 processes: 27 idle, 1 on processor CPU states: 0.5% user, 0.0% nice, 0.5% system, 0.2% interrupt, 98.9% idle Memory: Real: 5884K/22M act/tot Free: 2188K Swap: 20M/65M used/tot OpenBSD 4.4-beta (GENERIC) #1012: Sun Aug 3 09:57:38 MDT 2008 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC cpu0: AMD-K6tm w/ multimedia extensions (AuthenticAMD 586-class) 200 MHz cpu0: FPU,V86,DE,PSE,TSC,MSR,MCE,CX8,MMX real mem = 33124352 (31MB) avail mem = 22052864 (21MB)
Re: Can OpenBSD run in 24 MB of RAM?
[EMAIL PROTECTED] schrieb: I've searched the FAQ and the Web for any guidance on what the minimum RAM is for OpenBSD, with and without X. I just acquired a Compaq Armada 1125 laptop that maxes out at 24 MB of RAM, and I'm wondering whether or not it's feasible to run OpenBSD on it.
Re: Can OpenBSD run in 24 MB of RAM?
I installed 4.3 onto a Compaq Armada 1500 with 32RAM. I got nginx working with PHP though fastcgi but before i could test it any further i got it upgraded to 96MB. It was handling it well enough with 32, i guess... you can't really tell just how much RAM is in deed being used. I'm still keeping it low profile, with SQLite. It's basically my test box for fiddling around with servers. FTP was a try but needs work, i was trying vsftp i think. Then i got very slow ssh responses but worked around it disabling DNS in ssh.conf (or something like that). Quite a fun thread to read :D Next step will be fiddling around with the printer. I was trying CUPS but guess what, it depends on X - which i obviously don't have installed. The best response i got here was man lpd... So we'll see. The main purpose of using it, besides the fun, is to maybe upgrade it to support a large hard-drive so it can be on 24/7 and act as my /home throughout my home network. Using its USB 1.0 would be kinda slow but finding a decent HD for this old box is not that easy (i.e. internal or fiddle with the cables and adapt a normal external IDE)... Plus i dunno if there are any size limits for booting and all that, maybe that's solved with a small /boot partition at the begining of the drive? -- Nuno MagalhC#es
Re: Can OpenBSD run in 24 MB of RAM?
On 2008-09-04, Wade, Daniel [EMAIL PROTECTED] wrote: I've been meaning to change over to djbdns, I just haven't yet. take a look at Unbound (port/package in 4.4/-current), it's quite nice.
Re: Can OpenBSD run in 24 MB of RAM?
I used to run OpenBSD 4.2 on a sun SparcClassic with 24MB and it ran pretty cool, i used the box as web server and vpn gateway, 2 users had screen sessions with irssi and mcabber.
Re: Can OpenBSD run in 24 MB of RAM?
2008/9/4 [EMAIL PROTECTED]: I've searched the FAQ and the Web for any guidance on what the minimum RAM is for OpenBSD, with and without X. I just acquired a Compaq Armada 1125 laptop that maxes out at 24 MB of RAM, and I'm wondering whether or not it's feasible to run OpenBSD on it. I kept thinking that I had read an answer to that question in some part of the documentation in the past, but like the OP, I couldn't find it in the FAQ. Now I've found it: It's in INSTALL.386 --on the web e.g. at http://anga.funkfeuer.at/ftp/pub/OpenBSD/4.3/i386/INSTALL.i386 (and other mirrors)-- where is says among other things: The minimal configuration to install the system is 24MB or 32MB of RAM and perhaps 200MB of disk space. To install the entire system requires much more disk space, and to run X or compile the system, more RAM is recommended. I'm not, btw. entirely sure why it says 24MB *or* 32MB, but anyway. kind regards, --ropers
Re: Can OpenBSD run in 24 MB of RAM?
ropers wrote: 2008/9/4 [EMAIL PROTECTED]: I've searched the FAQ and the Web for any guidance on what the minimum RAM is for OpenBSD, with and without X. I just acquired a Compaq Armada 1125 laptop that maxes out at 24 MB of RAM, and I'm wondering whether or not it's feasible to run OpenBSD on it. I kept thinking that I had read an answer to that question in some part of the documentation in the past, but like the OP, I couldn't find it in the FAQ. Now I've found it: It's in INSTALL.386 --on the web e.g. at http://anga.funkfeuer.at/ftp/pub/OpenBSD/4.3/i386/INSTALL.i386 (and other mirrors)-- where is says among other things: The minimal configuration to install the system is 24MB or 32MB of RAM and perhaps 200MB of disk space. To install the entire system requires much more disk space, and to run X or compile the system, more RAM is recommended. I'm not, btw. entirely sure why it says 24MB *or* 32MB, but anyway. Because it is hard to get a machine down to 24M RAM anymore. :) I actually have some 16M DIMMs which allowed me to build a real 450MHz PII machine with 16M RAM. :) I have difficulty coming up with a practical app for such a machine, however. IF it doesn't already have 24M RAM in it, upgrading to that would be unpleasant. You won't want to compile anything. You won't want to use X (don't know that you would want to do that on that screen anyway). You won't be using any big applications. You won't be using any medium-sized applications. You won't be running many small applications. I guess if you need a portable serial console, it might be pretty good, though the battery is probably dead. 100MHz P1 is enough for ssh, but it isn't really fun. Finding a PCMCIA network adapter that works on a machine that old might be lots of fun, too. I think I started writing a FAQ article a few times on minimum hardware a few times. It kept turning into a sermon. :) Short version: If you are new to OpenBSD, I'm going to say a P-II, 4G HD, 64M RAM would be the least I'd suggest. A lot of things a LOT less will work just fine for a LOT of applications, but when you are learning, you want to have something you can screw-up and reload many times without horrible delays. You want to be able to say, What happens when I do THIS? and even look forward to it blowing up and requiring a complete reload. Can you do repeated reloads on a 486/25? Of course. However, if you got that kinda time on your hands, you need a job. Experienced users usually have no problem figuring out what they need to run their applications. Also keep in mind, the goal is most likely not running OpenBSD, the goal is probably some task which runs on top OpenBSD. 24M is plenty to sit at a shell prompt, but I doubt that's your goal. Nick.
Re: Can OpenBSD run in 24 MB of RAM?
On Thu, 04 Sep 2008 19:33:11 -0400, Nick Holland wrote: Experienced users usually have no problem figuring out what they need to run their applications. Also keep in mind, the goal is most likely not running OpenBSD, the goal is probably some task which runs on top OpenBSD. 24M is plenty to sit at a shell prompt, but I doubt that's your goal. Hehe. I did a favour for a client and took his son's Thinkpad 240 (nice and small, dead battery, PCMCIA CD drive etc) I forget how much RAM but not very. Can't install from a CD because of catch 22 - CD unbootable until an OS is installed 8-) OBSD boots nicely from external floppy, connnects via PCMCIA NIC to my install server, installs happily. All I want it for is to run cu to talk to Soekris boxes in the field so I can even leave out the external FDD but it's then i find out that the RS232 port is dead. At that point I am glad that OBSD is so easy to install that the effort was not great and sad that I didn't forsee that something that old and so battered would likely have problems. Ahhh well, another paperweight like most of the machines mentioned in threads like this. It just makes me feel as old as these war stories... ~|^ == R/ (Offlist replies to the supplied reply-to: or discover tarpitting ;-} ) Rod/ _ Depressed? Me? Don't make me laugh! :Spike Milligan:1918-2002:
Re: Can OpenBSD run in 24 MB of RAM?
ropers wrote: I'm not, btw. entirely sure why it says 24MB *or* 32MB, but anyway. Must be the video ram used by AGP...
Re: Can OpenBSD run in 24 MB of RAM?
On Wed, Sep 3, 2008 at 11:00 PM, [EMAIL PROTECTED] wrote: I've searched the FAQ and the Web for any guidance on what the minimum RAM is for OpenBSD, with and without X. It's the smallest amount of RAM that lets you get your work done.
