System requirements for CentOS 5 minimal installation (console and ssh) are....128 MB ram, 256...? I can't find this information in rhel5 installation manual.
Grzesiek spake the following on 4/4/2007 9:46 AM:> System requirements for CentOS 5 minimal installation (console and > ssh) are....128 MB ram, 256...? I can't find this information in rhel5 > installation manual.I have seen problems on the list with installing the beta in less than 256 MB, but how useful would a server be with much less than that? Especially with the 2.6 kernel. I remember running the 2.0 kernel in as little as 32 MB, 2.4 had some trouble with less than 64MB, and I guess some feature bloat just creeps into everything. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!!
On 4/4/07, Grzesiek <grz3chu at gmail.com> wrote:> System requirements for CentOS 5 minimal installation (console and > ssh) are....128 MB ram, 256...? I can't find this information in rhel5 > installation manual.A text based install is possible at 256 MB. A GUI based install needs 512MB (but 1024MB is recommended by Upstream OS Provider). -- Stephen J Smoogen. -- CSIRT/Linux System Administrator How far that little candle throws his beams! So shines a good deed in a naughty world. = Shakespeare. "The Merchant of Venice"
Almost everything I have switched off in ntsysv and system run very
quickly on wmware and 128mb ram. Apache for 3-4 local users works
nice.
total used free shared buffers cached
Mem: 122 57 64 0 7 32
-/+ buffers/cache: 18 104
Swap: 511 0 511
but, 256 mb for minimal text installation is good idea.
CentOS 5 coming soon...only 5 days ;)
Thanks!
On Wed, 4 Apr 2007, Grzesiek wrote:> System requirements for CentOS 5 minimal installation (console and > ssh) are....128 MB ram, 256...? I can't find this information in rhel5 > installation manual.I did a PXE (over the wire) install of centos 5, beta 2, onto a HP Vectra unit with a Celeron 700, and 256 meg of ram yesterday -- all works fine -- the unit is rsyncing a backup at the moment. Last login: Wed Apr 4 03:24:44 2007 from centos-4.first.lan [herrold at dhcp-232 ~]$ ps afx ; free ; w PID TTY STAT TIME COMMAND 1 ? Ss 0:01 init [3] 2 ? S 0:00 [migration/0] 3 ? SN 0:00 [ksoftirqd/0] 4 ? S 0:00 [watchdog/0] 5 ? S< 0:00 [events/0] 6 ? S< 0:00 [khelper] 7 ? S< 0:00 [kthread] 10 ? S< 0:00 \_ [kblockd/0] 11 ? S< 0:00 \_ [kacpid] 68 ? S< 0:00 \_ [cqueue/0] 71 ? S< 0:00 \_ [khubd] 73 ? S< 0:00 \_ [kseriod] 130 ? S 0:00 \_ [pdflush] 131 ? S 0:04 \_ [pdflush] 132 ? S< 0:03 \_ [kswapd0] 133 ? S< 0:00 \_ [aio/0] 285 ? S< 0:00 \_ [kpsmoused] 306 ? S< 0:00 \_ [kmirrord] 311 ? S< 0:00 \_ [ksnapd] 314 ? S< 0:05 \_ [kjournald] 346 ? S< 0:00 \_ [kauditd] 1059 ? S< 0:00 \_ [kjournald] 380 ? S<s 0:00 /sbin/udevd -d 1551 ? Ss 0:00 /sbin/dhclient -1 -q -lf /var/lib/dhclient/dhclient-e 1661 ? Ss 0:00 /usr/sbin/restorecond 1677 ? S<sl 0:00 auditd 1679 ? S<s 0:00 \_ python /sbin/audispd 1697 ? Ss 0:00 syslogd -m 0 1700 ? Ss 0:00 klogd -x 1735 ? Ss 0:00 mcstransd 1757 ? Ss 0:00 portmap 1782 ? Ss 0:00 rpc.statd 1823 ? Ss 0:00 rpc.idmapd 1850 ? Ssl 0:00 dbus-daemon --system 1866 ? Ss 0:00 /usr/sbin/hcid 1876 ? Ss 0:00 /usr/sbin/sdpd 1889 ? S< 0:00 [krfcommd] 1937 ? Ssl 0:00 pcscd 1960 ? Ss 0:00 /usr/bin/hidd --server 1979 ? Ssl 0:02 automount 2002 ? Ss 0:00 /usr/sbin/acpid 2017 ? Ss 0:00 cupsd 2035 ? Ss 0:00 /usr/sbin/sshd 8947 ? Ss 0:00 \_ sshd: herrold [priv] 8949 ? S 0:00 | \_ sshd: herrold at pts/0 8950 pts/0 Ss 0:00 | \_ -bash 12317 pts/0 S+ 0:00 | \_ /bin/sh ./domain-back.sh 12318 pts/0 S+ 0:03 | \_ rsync -av --exclude home/billt/ - 12319 pts/0 S+ 0:35 | \_ ssh www2.domain.com rsy 12322 pts/0 S+ 0:15 | \_ rsync -av --exclude home/bill 13330 ? Ss 0:00 \_ sshd: herrold [priv] 13332 ? S 0:00 \_ sshd: herrold at pts/1 13333 pts/1 Ss 0:00 \_ -bash 13356 pts/1 R+ 0:00 \_ ps afx 2059 ? Ss 0:00 sendmail: accepting connections 2068 ? Ss 0:00 sendmail: Queue runner at 01:00:00 for /var/spool/client 2084 ? Ss 0:00 gpm -m /dev/input/mice -t exps2 2099 ? Ss 0:00 crond 2128 ? Ss 0:00 /usr/sbin/atd 2143 ? S 0:00 /usr/bin/python /usr/sbin/yum-updatesd 2158 ? Ss 0:01 hald 2159 ? S 0:00 \_ hald-runner 2165 ? S 0:00 \_ hald-addon-acpi: listening on acpid socket /v 2169 ? S 0:00 \_ hald-addon-keyboard: listening on /dev/input/ 2218 ? S 0:00 /usr/sbin/smartd -q never 2221 tty1 Ss+ 0:00 /sbin/mingetty tty1 2222 tty2 Ss+ 0:00 /sbin/mingetty tty2 2223 tty3 Ss+ 0:00 /sbin/mingetty tty3 2224 tty4 Ss+ 0:00 /sbin/mingetty tty4 2225 tty5 Ss+ 0:00 /sbin/mingetty tty5 2226 tty6 Ss+ 0:00 /sbin/mingetty tty6 total used free shared buffers cached Mem: 254616 250760 3856 0 9284 178020 -/+ buffers/cache: 63456 191160 Swap: 524280 84 524196 14:39:32 up 1 day, 2:46, 2 users, load average: 0.00, 0.00, 0.00 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT herrold pts/0 centos-4.first.l 03:24 1:50m 55.24s 0.36s sshd: herrold [ herrold pts/1 centos-4.first.l 14:39 0.00s 0.09s 0.00s w [herrold at dhcp-232 ~]$ -- Russ Herrold
On Wed, 04 Apr 2007 18:46:05 +0200, Grzesiek wrote:> System requirements for CentOS 5 minimal installation (console and ssh) > are....128 MB ram, 256...? I can't find this information in rhel5 > installation manual.You can find it in the CentOS 5.0 Release Notes: o The graphical installer is for systems with over 512MB of memory. Using the graphical installer on systems with less than 512MB may cause problems. o The anaconda installer needs at least 128MB of memory to work, and will only use text mode if the system has less than 256MB of RAM.
"Stephen John Smoogen" <smooge at gmail.com> wrote:> On 4/4/07, Grzesiek <grz3chu at gmail.com> wrote: >> > System requirements for CentOS 5 minimal installation (console and >> > ssh) are....128 MB ram, 256...? I can't find this information in rhel5 >> > installation manual. >> > > A text based install is possible at 256 MB. > A GUI based install needs 512MB (but 1024MB is recommended by Upstream > OS Provider).384MB is sufficient for graphical install of the CentOS 5 beta (4.92): [root at fold ~]# uname -a Linux fold.local.davenjudy.org 2.6.18-1.2747.el5 #1 SMP Mon Dec 11 21:17:21 EST 2006 i686 i686 i386 GNU/Linux [root at fold ~]# cat /etc/redhat-release CentOS release 4.92 (Beta) [root at fold ~]# cat /proc/meminfo MemTotal: 384920 kB MemFree: 11200 kB Buffers: 116204 kB Cached: 108832 kB SwapCached: 9804 kB Active: 227620 kB Inactive: 87620 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 384920 kB LowFree: 11200 kB SwapTotal: 3116492 kB SwapFree: 3072824 kB Dirty: 36 kB Writeback: 0 kB AnonPages: 86816 kB Mapped: 45764 kB Slab: 39908 kB PageTables: 4024 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 3308952 kB Committed_AS: 567092 kB VmallocTotal: 638968 kB VmallocUsed: 8088 kB VmallocChunk: 629748 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 Hugepagesize: 4096 kB This is my "crash and burn" test box so it only gets minimal usage other than sequentially making sure the CentOS 5 applications work as expected. Cheers, Dave -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce