/var too small [was Gap of years = loss of memory!!]

[Vizion]

On Thursday 02 June 2005 06:16,  the author Jerry McAllister contributed to 
the dialogue on-
 Re: /var too small [was Gap of years = loss of memory!!]: 

>> Hi
>>
>> This is the sort of thing I used to do regularly but not having done this
>> task for a few years I feel the need to check up on the best way to deal
>> with the circumstances described below.
>> I decided to change the subject - maybe you thought the original was spam
>> :-) I have a freebsd system with the following
>> hard drive configuration:
>> $ df
>> Filesystem  1K-blocks     Used     Avail Capacity  Mounted on
>> /dev/ad6s1a    253678    44804    188580    19%    /
>> devfs               1        1         0   100%    /dev
>> /dev/ad6s1e    253678    15732    217652     7%    /tmp
>> /dev/ad6s1f 148665266 18848290 117923756    14%    /usr
>> /dev/ad6s1d    253678   107022    126362    46%    /var
>>
>> The full output from dmesg.boot is included as a postscript (all comments
>> welcome). Its last two lines are:
>> Opened disk da1 -> 6
>> Mounting root from ufs:/dev/ad6s1a
>>
>> The motherboard is an Abit VA-20 with two SATA slots on the motherboard-
>> SATA1 & SATA2
>> /dev/ad6 is a 160G SATA hard drive currently connected to the SATA2 slot
>> (dont know why!)
>>
>> (a) /dev/ad6s1d [ /var ] is far too small for my needs
>> (b) With the development project I am embarking on /usr will also be small
>> to hold the development files as well as other stuff.
>> (c) I have therefore bought a new 200G SATA drive to add to the system.
>> (d)  I wish to allocate 40G to /var and
>> (e) 160G to /dev
>> (f) rename /var to /var.old
>> (g) move /var.old to /var
>> (h) have /var.old mounted as /logs
>> (i) At the same time I also propose increasing memory from 1G to 2G which
>> will
>
>You do not allocate anything to /dev.   That is a special directory
>just for devices.   Do you really mean something else?

Yes its my abbreviation for developer!! I must be careful not to do /dev -- 
thanks for drawing my attention to that one!!

I really appreciate yr help.

Leaving aside the SATA issues about SATA1 & SATA2 could you possibly check 
over my proposed fstab entries below?
>
>As for moving the /var partition:
>After you fdisk(8) and disklabel(8) the new drive and newfs(8) the newly
>created file system[s], create a different temporaty mount point for it
>to use while you are moving thing - say /newvar.
>Then mount the file system on /newvar.
>Then tar stuff in /var up and move it to /newvar
>Unroll it in newvar and check it out.
> (Since it is a whole filesystem, you could as easily use dump(8)/restore(8)
>When you are convinced it looks good, unmount /var and /newvar and
>remount the new partition as /var.  Remount the old one as /oldlogs if you
>like.
>Then edit /etc/fstab to make the new mounts the default.
>Then rmove the tar(dump) file.

Understood
>
>Do:
>  mkdir /newvar
>  mkdir /oldlogs
>  mount /dev/adNs1e /newvar
>  cd /var
>  tar -cvpf /newvar/var.tar *    ( or   dump 0af /newvar/var.dump /var )
>  cd /newvar
>  tar -xvpf var.tar              ( or   restore -rf var.dump )
>Check it all out
>Then:
>  umount /newvar
>  umount /var
>  mount /dev/adNs1e /var
>  mount /dev/ad6s1d /oldlogs
>Edit /etc/fstab to fix mounts
>Then:
>  cd /var
>  rm /var.tar
>
Got it = a good plan to me
Thanks again
David
>
>
>As for below, I can't tell you about shuffling drives on a SATA.
>Hopefully someone else knows that.
>
>////jerry
>
>> hopefully speed up my compiling a little.
>>
>> OK so far .. now
>> If I put the new drive onto SATA 1 with the exiting drive remaining on
>> SATA2 the bios expects to boot from CD. Currently the bios is set to boot
>> from HDD0 but if I change the bios to HDD1 it makes no difference. The
>> system does not boot at all.
>>
>> Unless I have missed something it seems the bios cannot be set to allow 
>> boot from SATA2 if a drive is present on SATA1.
>>
>> If I put the existing drive onto SATA 1 with the new drive onto SATA2 then
>> the root mount fails. The existing drive appears to be recognized as ad4
>> so if my recollection is correct the first step would be  to alter
>> /etc/fstab to read:
>>
>> /dev/ad4s1b             none            swap    sw              0       0
>> /dev/ad4s1a             /               ufs     rw              1       1
>> /dev/ad4s1e             /tmp            ufs     rw              2       2
>> /dev/ad4s1f             /usr            ufs     rw              2       2
>> /dev/ad4s1d             /var            ufs     rw              2       2
>> /dev/acd0               /cdrom          cd9660  ro,noauto       0       0
>>
>> and the system should mount OK???
>> IS that correct?
>> I want to get this right first time (if possible!!)
>>
>> Then presumably I can
>> (a) use sysinstall to add the new drive which should presumably mount as
>> ad6? (b) Create partition ad6s1a (+/-40g)
>> (c) Create partition ad6s1b (+- 160G)
>> (d) I am inclined to use sysinstall to mount the first partition  ad6s1a
>> as /logs and
>> (e) the second partition ad6s1b as /dev
>> (f) reboot - resumably sysinstall will automatically add the entries
>> to /etc/fstab and  then I can
>> (g) copy the contents of /var to /logs
>> (h) switch the fstab entries for /var and /logs
>> And I should boot up OK
>>
>> Is this a sound plan
>> In light of the added memory should I modify the plan to allow for
>> additional swap space on the new drive?
>>
>> Thanks in advance for  any input
>>
>> David
>>
>>
>> ------------------------------------------------------------
>>
>>
>> PS Here is dmesg.boot from the existing setup.
>>
>> Copyright (c) 1992-2004 The FreeBSD Project.
>> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
>> 	The Regents of the University of California. All rights reserved.
>> FreeBSD 5.3-RELEASE #0: Fri Nov  5 04:19:18 UTC 2004
>>     root at harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
>> Timecounter "i8254" frequency 1193182 Hz quality 0
>> CPU: AMD Athlon(tm)  (1593.54-MHz 686-class CPU)
>>   Origin = "AuthenticAMD"  Id = 0x6a0  Stepping = 0
>>
>> Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MC
>>A,CMOV,PAT,PSE36,MMX,FXSR,SSE> AMD Features=0xc0480000<MP,AMIE,DSP,3DNow!>
>> real memory  = 1006567424 (959 MB)
>> avail memory = 975376384 (930 MB)
>> ACPI APIC Table: <KM400A AWRDACPI>
>> ioapic0 <Version 0.3> irqs 0-23 on motherboard
>> npx0: [FAST]
>> npx0: <math processor> on motherboard
>> npx0: INT 16 interface
>> acpi0: <KM400A AWRDACPI> on motherboard
>> acpi0: Power Button (fixed)
>> Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
>> acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
>> cpu0: <ACPI CPU (3 Cx states)> on acpi0
>> acpi_tz0: <Thermal Zone> on acpi0
>> acpi_button0: <Power Button> on acpi0
>> pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
>> pci0: <ACPI PCI bus> on pcib0
>> agp0: <VIA Generic host to PCI bridge> mem 0xd0000000-0xd7ffffff at device
>> 0.0 on pci0
>> pcib1: <PCI-PCI bridge> at device 1.0 on pci0
>> pci1: <PCI bus> on pcib1
>> pci1: <display, VGA> at device 0.0 (no driver attached)
>> pci0: <network, ethernet> at device 9.0 (no driver attached)
>> fwohci0: <Texas Instruments TSB43AB23> mem
>> 0xde010000-0xde013fff,0xde014000-0xde0147ff irq 18 at device 10.0 on pci0
>> fwohci0: OHCI version 1.10 (ROM=1)
>> fwohci0: No. of Isochronous channels is 4.
>> fwohci0: EUI64 00:d0:03:56:00:b2:b7:e6
>> fwohci0: Phy 1394a available S400, 3 ports.
>> fwohci0: Link S400, max_rec 2048 bytes.
>> firewire0: <IEEE1394(FireWire) bus> on fwohci0
>> fwe0: <Ethernet over FireWire> on firewire0
>> if_fwe0: Fake Ethernet address: 02:d0:03:b2:b7:e6
>> fwe0: Ethernet address: 02:d0:03:b2:b7:e6
>> fwe0: if_start running deferred for Giant
>> sbp0: <SBP-2/SCSI over FireWire> on firewire0
>> fwohci0: Initiate bus reset
>> fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode
>> firewire0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
>> firewire0: bus manager 0 (me)
>> atapci0: <VIA 6420 SATA150 controller> port
>> 0xa400-0xa4ff,0xa000-0xa00f,0x9c00-0x9c03,0x9800-0x9807,0x9400-0x9403,0x90
>>00-0x9007 irq 20 at device 15.0 on pci0
>> ata2: channel #0 on atapci0
>> ata3: channel #1 on atapci0
>> atapci1: <VIA 8237 UDMA133 controller> port
>> 0xa800-0xa80f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 15.1 on pci0
>> ata0: channel #0 on atapci1
>> ata1: channel #1 on atapci1
>> uhci0: <VIA 83C572 USB controller> port 0xac00-0xac1f irq 21 at device
>> 16.0 on pci0
>> uhci0: [GIANT-LOCKED]
>> usb0: <VIA 83C572 USB controller> on uhci0
>> usb0: USB revision 1.0
>> uhub0: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
>> uhub0: 2 ports with 2 removable, self powered
>> uhci1: <VIA 83C572 USB controller> port 0xb000-0xb01f irq 21 at device
>> 16.1 on pci0
>> uhci1: [GIANT-LOCKED]
>> usb1: <VIA 83C572 USB controller> on uhci1
>> usb1: USB revision 1.0
>> uhub1: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
>> uhub1: 2 ports with 2 removable, self powered
>> uhci2: <VIA 83C572 USB controller> port 0xb400-0xb41f irq 21 at device
>> 16.2 on pci0
>> uhci2: [GIANT-LOCKED]
>> usb2: <VIA 83C572 USB controller> on uhci2
>> usb2: USB revision 1.0
>> uhub2: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
>> uhub2: 2 ports with 2 removable, self powered
>> umass0: USB2.0 CardReader, rev 2.00/91.38, addr 2
>> uhci3: <VIA 83C572 USB controller> port 0xb800-0xb81f irq 21 at device
>> 16.3 on pci0
>> uhci3: [GIANT-LOCKED]
>> usb3: <VIA 83C572 USB controller> on uhci3
>> usb3: USB revision 1.0
>> uhub3: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
>> uhub3: 2 ports with 2 removable, self powered
>> pci0: <serial bus, USB> at device 16.4 (no driver attached)
>> isab0: <PCI-ISA bridge> at device 17.0 on pci0
>> isa0: <ISA bus> on isab0
>> pci0: <multimedia, audio> at device 17.5 (no driver attached)
>> vr0: <VIA VT6102 Rhine II 10/100BaseTX> port 0xc400-0xc4ff mem
>> 0xde016000-0xde0160ff irq 23 at device 18.0 on pci0
>> miibus0: <MII bus> on vr0
>> ukphy0: <Generic IEEE 802.3u media interface> on miibus0
>> ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
>> vr0: Ethernet address: 00:50:8d:6e:9d:31
>> sio0: configured irq 4 not in bitmap of probed irqs 0
>> sio0: port may not be enabled
>> sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on
>> acpi0 sio0: type 16550A
>> sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
>> sio1: type 16550A
>> ppc0: <ECP parallel printer port> port 0x778-0x77b,0x378-0x37f irq 7 drq 3
>> on acpi0
>> ppc0: Generic chipset (ECP/PS2/NIBBLE) in COMPATIBLE mode
>> ppc0: FIFO with 16/16/16 bytes threshold
>> ppbus0: <Parallel port bus> on ppc0
>> plip0: <PLIP network interface> on ppbus0
>> lpt0: <Printer> on ppbus0
>> lpt0: Interrupt-driven port
>> ppi0: <Parallel I/O> on ppbus0
>> atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
>> atkbd0: <AT Keyboard> irq 1 on atkbdc0
>> kbd0 at atkbd0
>> atkbd0: [GIANT-LOCKED]
>> psm0: <PS/2 Mouse> irq 12 on atkbdc0
>> psm0: [GIANT-LOCKED]
>> psm0: model IntelliMouse, device ID 3
>> pmtimer0 on isa0
>> sc0: <System console> at flags 0x100 on isa0
>> sc0: VGA <16 virtual consoles, flags=0x300>
>> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
>> Timecounter "TSC" frequency 1593539572 Hz quality 800
>> Timecounters tick every 10.000 msec
>> acd0: CDRW <LITE-ON CD-RW SOHR-5239S/2S03> at ata0-slave UDMA33
>> ad6: 152627MB <ST3160827AS/3.42> [310101/16/63] at ata3-master SATA150
>> da0 at umass-sim0 bus 0 target 0 lun 0
>> da0: <USB2.0 CF  CardReader > Removable Direct Access SCSI-0 device
>> da0: 1.000MB/s transfers
>> da0: Attempt to query device size failed: NOT READY, Medium not present
>> da1 at umass-sim0 bus 0 target 0 lun 1
>> da1: <USB2.0 CBO CardReader > Removable Direct Access SCSI-0 device
>> da1: 1.000MB/s transfers
>> da1: Attempt to query device size failed: NOT READY, Medium not present
>> (da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
>> (da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
>> (da0:umass-sim0:0:0:0): SCSI Status: Check Condition
>> (da0:umass-sim0:0:0:0): NOT READY asc:3a,0
>> (da0:umass-sim0:0:0:0): Medium not present
>> (da0:umass-sim0:0:0:0): Unretryable error
>> Opened disk da0 -> 6
>> (da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
>> (da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
>> (da0:umass-sim0:0:0:0): SCSI Status: Check Condition
>> (da0:umass-sim0:0:0:0): NOT READY asc:3a,0
>> (da0:umass-sim0:0:0:0): Medium not present
>> (da0:umass-sim0:0:0:0): Unretryable error
>> Opened disk da0 -> 6
>> (da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
>> (da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
>> (da0:umass-sim0:0:0:0): SCSI Status: Check Condition
>> (da0:umass-sim0:0:0:0): NOT READY asc:3a,0
>> (da0:umass-sim0:0:0:0): Medium not present
>> (da0:umass-sim0:0:0:0): Unretryable error
>> Opened disk da0 -> 6
>> (da1:umass-sim0:0:0:1): READ CAPACITY. CDB: 25 20 0 0 0 0 0 0 0 0
>> (da1:umass-sim0:0:0:1): CAM Status: SCSI Status Error
>> (da1:umass-sim0:0:0:1): SCSI Status: Check Condition
>> (da1:umass-sim0:0:0:1): NOT READY asc:3a,0
>> (da1:umass-sim0:0:0:1): Medium not present
>> (da1:umass-sim0:0:0:1): Unretryable error
>> Opened disk da1 -> 6
>> (da1:umass-sim0:0:0:1): READ CAPACITY. CDB: 25 20 0 0 0 0 0 0 0 0
>> (da1:umass-sim0:0:0:1): CAM Status: SCSI Status Error
>> (da1:umass-sim0:0:0:1): SCSI Status: Check Condition
>> (da1:umass-sim0:0:0:1): NOT READY asc:3a,0
>> (da1:umass-sim0:0:0:1): Medium not present
>> (da1:umass-sim0:0:0:1): Unretryable error
>> Opened disk da1 -> 6
>> (da1:umass-sim0:0:0:1): READ CAPACITY. CDB: 25 20 0 0 0 0 0 0 0 0
>> (da1:umass-sim0:0:0:1): CAM Status: SCSI Status Error
>> (da1:umass-sim0:0:0:1): SCSI Status: Check Condition
>> (da1:umass-sim0:0:0:1): NOT READY asc:3a,0
>> (da1:umass-sim0:0:0:1): Medium not present
>> (da1:umass-sim0:0:0:1): Unretryable error
>> Opened disk da1 -> 6
>> Mounting root from ufs:/dev/ad6s1a
>> Opened disk da1 -> 6
>> Mounting root from ufs:/dev/ad6s1a
>>
>>
>>
>> --
>> 40 yrs navigating and computing in blue waters.
>> English Owner & Captain of British Registered 60' bluewater Ketch S/V
>> Taurus. Currently in San Diego, CA. Sailing May/June bound for Europe via
>> Panama Canal.
>> _______________________________________________
>> freebsd-questions at freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>> To unsubscribe, send any mail to
>> "freebsd-questions-unsubscribe at freebsd.org"

-- 
40 yrs navigating and computing in blue waters.
English Owner & Captain of British Registered 60' bluewater Ketch S/V Taurus.
 Currently in San Diego, CA. Sailing May/June bound for Europe via Panama 
Canal.