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.
Scott Silva wrote:
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.
Hog. I ran an Internet server for some years running RHL 4.2 and a 2.0 kernel in 8 Mbytes.
Until its disk died, I was running a perfectly credible server for a small LAN on a Pentium III with 128, maybe 192 Mbytes of RAM. The only time it was short of RAM was when running rsync to back it up, when it used an enormous amount of swap.
It was running Debian/Sarge.
On 4/4/07, Grzesiek grz3chu@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).
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@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@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@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@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@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.
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Akemi Yagi -
Grzesiek -
John Summerfield -
R P Herrold -
Scott Silva -
Stephen John Smoogen