Hi team, I played about with manually allocating /var/tmp in a 5.7 install.
Twice tar has complained when installing from local disk with: < 512Mb /tmp > 512Mb /var/tmp I dunno if it's anything to worry about. Here's hoping a script(1) log doesn't bugger up this mail formatting...: Script started on Sat Aug 29 06:34:03 2015 $ tip palm connected >> OpenBSD/i386 BOOT 3.26 boot> boot /bsd.rd.57 ... .. . Welcome to the OpenBSD/i386 5.7 installation program. (I)nstall, (U)pgrade, (A)utoinstall or (S)hell? I ... .. . Use (W)hole disk, use the (O)penBSD area, or (E)dit the MBR? [OpenBSD] W Setting OpenBSD MBR partition to whole wd0...done. ... .. . Use (A)uto layout, (E)dit auto layout, or create (C)ustom layout? [a] C ... .. . Label editor (enter '?' for help at any prompt) > z ... .. . > p M OpenBSD area: 64-160071660; size: 78160.0M; free: 1153.1M # size offset fstype [fsize bsize cpg] a: 101.9M 64 4.2BSD 2048 16384 1 # / b: 494.2M 208832 swap c: 78167.2M 0 unused d: 102.0M 1220960 4.2BSD 2048 16384 1 # /var e: 94.1M 1429760 4.2BSD 2048 16384 1 # /var/log f: 94.1M 1622560 4.2BSD 2048 16384 1 # /tmp g: 243.2M 1815328 4.2BSD 2048 16384 1 # /usr h: 517.7M 2313344 4.2BSD 2048 16384 1 # /usr/local i: 94.1M 3373632 4.2BSD 2048 16384 1 # /home j: 517.7M 3566400 4.2BSD 2048 16384 1 # /var/tmp k: 5122.3M 4626720 4.2BSD 2048 16384 1 # /var/www l: 69625.5M 15117152 4.2BSD 2048 16384 1 # /var/spool/postfix > w > q No label changes. /dev/rwd0a: 101.9MB in 208768 sectors of 512 bytes 4 cylinder groups of 25.48MB, 1631 blocks, 3328 inodes each /dev/rwd0i: 94.1MB in 192768 sectors of 512 bytes 4 cylinder groups of 23.53MB, 1506 blocks, 3072 inodes each /dev/rwd0f: 94.1MB in 192768 sectors of 512 bytes 4 cylinder groups of 23.53MB, 1506 blocks, 3072 inodes each newfs: reduced number of fragments per cylinder group from 31120 to 30992 to enlarge last cylinder group /dev/rwd0g: 243.2MB in 498016 sectors of 512 bytes 5 cylinder groups of 60.53MB, 3874 blocks, 7808 inodes each newfs: reduced number of fragments per cylinder group from 66264 to 66000 to enlarge last cylinder group /dev/rwd0h: 517.7MB in 1060288 sectors of 512 bytes 5 cylinder groups of 128.91MB, 8250 blocks, 16512 inodes each newfs: reduced number of fragments per cylinder group from 13048 to 12992 to enlarge last cylinder group /dev/rwd0d: 102.0MB in 208800 sectors of 512 bytes 5 cylinder groups of 25.38MB, 1624 blocks, 3328 inodes each newfs: reduced number of fragments per cylinder group from 12048 to 11992 to enlarge last cylinder group /dev/rwd0e: 94.1MB in 192800 sectors of 512 bytes 5 cylinder groups of 23.42MB, 1499 blocks, 3072 inodes each /dev/rwd0l: 69625.5MB in 142592928 sectors of 512 bytes 344 cylinder groups of 202.47MB, 12958 blocks, 25984 inodes each newfs: reduced number of fragments per cylinder group from 66264 to 66000 to enlarge last cylinder group /dev/rwd0j: 517.7MB in 1060320 sectors of 512 bytes 5 cylinder groups of 128.91MB, 8250 blocks, 16512 inodes each /dev/rwd0k: 5122.3MB in 10490432 sectors of 512 bytes 26 cylinder groups of 202.47MB, 12958 blocks, 25984 inodes each Available disks are: wd1. Which disk do you wish to initialize? (or 'done') [done] /dev/wd0a (364eb89ee13fc5c7.a) on /mnt type ffs (rw, asynchronous, local) /dev/wd0i (364eb89ee13fc5c7.i) on /mnt/home type ffs (rw, asynchronous, local, nodev, nosuid) /dev/wd0f (364eb89ee13fc5c7.f) on /mnt/tmp type ffs (rw, asynchronous, local, nodev, nosuid) /dev/wd0g (364eb89ee13fc5c7.g) on /mnt/usr type ffs (rw, asynchronous, local, nodev) /dev/wd0h (364eb89ee13fc5c7.h) on /mnt/usr/local type ffs (rw, asynchronous, local, nodev) /dev/wd0d (364eb89ee13fc5c7.d) on /mnt/var type ffs (rw, asynchronous, local, nodev, nosuid) /dev/wd0e (364eb89ee13fc5c7.e) on /mnt/var/log type ffs (rw, asynchronous, local, nodev, nosuid) /dev/wd0l (364eb89ee13fc5c7.l) on /mnt/var/spool/postfix type ffs (rw, asynchronous, local, nodev, nosuid) /dev/wd0j (364eb89ee13fc5c7.j) on /mnt/var/tmp type ffs (rw, asynchronous, local, nodev, nosuid) /dev/wd0k (364eb89ee13fc5c7.k) on /mnt/var/www type ffs (rw, asynchronous, local, nodev, nosuid) Let's install the sets! Location of sets? (cd disk http or 'done') [disk] Is the disk partition already mounted? [no] Available disks are: wd0 wd1. Which disk contains the install media? (or 'done') [wd1] a: 208768 64 4.2BSD 2048 16384 1 b: 1012108 208832 4.2BSD 2048 16384 1 d: 631450816 1220992 4.2BSD 4096 32768 1 Available wd1 partitions are: a b d. Which wd1 partition has the install sets? (or 'done') [a] d Pathname to the sets? (or 'done') [5.7/i386] restored/var/www/sites/mirror/pub/OpenBSD/5.7/i386 ... .. . Set name(s)? (or 'abort' or 'done') [done] Verifying SHA256.sig 100% |**************************| 1888 00:00 Signature Verified Verifying bsd 100% |**************************| 10348 KB 00:01 Verifying bsd.rd 100% |**************************| 6803 KB 00:01 Verifying base57.tgz 100% |**************************| 51618 KB 00:09 Verifying man57.tgz 100% |**************************| 8773 KB 00:01 Verifying game57.tgz 100% |**************************| 2651 KB 00:00 Installing bsd 100% |**************************| 10348 KB 00:00 Installing bsd.rd 100% |**************************| 6803 KB 00:00 Installing base57.tgz 98% |************************* | 50944 KB 00:00 ETAtar: Unable to remove directory ./var/tmp: Device busy Installing base57.tgz 100% |**************************| 51618 KB 00:32 Extracting etc.tgz 100% |**************************| 110 KB 00:00 Installing man57.tgz 100% |**************************| 8773 KB 00:07 Installing game57.tgz 100% |**************************| 2651 KB 00:01 Location of sets? (cd disk http or 'done') [done] Saving configuration files...done. Making all device nodes...done. CONGRATULATIONS! Your OpenBSD install has been successfully completed! To boot the new system, enter 'reboot' at the command prompt. When you login to your new system the first time, please read your mail using the 'mail' command. # mount /dev/rd0a on / type ffs (local) /dev/wd0a on /mnt type ffs (asynchronous, local) /dev/wd0i on /mnt/home type ffs (asynchronous, local, nodev, nosuid) /dev/wd0f on /mnt/tmp type ffs (asynchronous, local, nodev, nosuid) /dev/wd0g on /mnt/usr type ffs (asynchronous, local, nodev) /dev/wd0h on /mnt/usr/local type ffs (asynchronous, local, nodev) /dev/wd0d on /mnt/var type ffs (asynchronous, local, nodev, nosuid) /dev/wd0e on /mnt/var/log type ffs (asynchronous, local, nodev, nosuid) /dev/wd0l on /mnt/var/spool/postfix type ffs (asynchronous, local, nodev, nosuid) /dev/wd0j on /mnt/var/tmp type ffs (asynchronous, local, nodev, nosuid) /dev/wd0k on /mnt/var/www type ffs (asynchronous, local, nodev, nosuid) # ls -lAF /mnt total 34628 -rw-r--r-- 1 root wheel 578 Mar 8 16:51 .cshrc -rw-r--r-- 1 root wheel 468 Mar 8 16:51 .profile drwxr-xr-x 2 root wheel 512 Mar 8 16:51 altroot/ drwxr-xr-x 2 root wheel 1024 Mar 8 16:52 bin/ -rw-r--r-- 1 root wheel 71452 Aug 29 05:50 boot -rw-r--r-- 1 root wheel 10596471 Aug 29 05:49 bsd -rw-r--r-- 1 root wheel 6966502 Aug 29 05:49 bsd.rd drwxr-xr-x 3 root wheel 19456 Aug 29 05:50 dev/ drwxr-xr-x 20 root wheel 1536 Aug 29 05:50 etc/ drwxr-xr-x 2 root wheel 512 Mar 8 16:51 home/ drwxr-xr-x 2 root wheel 512 Mar 8 16:51 mnt/ drwx------ 2 root wheel 512 Aug 29 05:49 root/ drwxr-xr-x 2 root wheel 1536 Mar 8 16:52 sbin/ drwxrwxrwt 2 root wheel 512 Mar 8 16:51 tmp/ drwxr-xr-x 15 root wheel 512 Mar 8 16:51 usr/ drwxr-xr-x 21 root wheel 512 Mar 8 16:51 var/ # df -h Filesystem Size Used Avail Capacity Mounted on /dev/rd0a 1.8M 1.5M 230K 87% / /dev/wd0a 100M 42.5M 52.7M 45% /mnt /dev/wd0i 92.5M 2.0K 87.9M 0% /mnt/home /dev/wd0f 92.5M 2.0K 87.9M 0% /mnt/tmp /dev/wd0g 238M 170M 56.1M 75% /mnt/usr /dev/wd0h 508M 216K 482M 0% /mnt/usr/local /dev/wd0d 99.7M 232K 94.5M 0% /mnt/var /dev/wd0e 92.1M 4.0K 87.5M 0% /mnt/var/log /dev/wd0l 66.9G 2.0K 63.6G 0% /mnt/var/spool/postfix /dev/wd0j 508M 2.0K 482M 0% /mnt/var/tmp /dev/wd0k 4.9G 1.2M 4.7G 0% /mnt/var/www # halt syncing disks... done The operating system has halted. Please press any key to reboot. ~ [EOT] $ exit Script done on Sat Aug 29 06:54:40 2015 -- Sun Microsystems Scottish factory: http://twitter.com/Craig_Skinner/status/637552953264619520