vmlinux
Hi,Where can I obtain vmlinux (not vmlinuz) image for my sl-6.3? Regards, Mahmood
oprofile-gui without dependency
Hi,I have manually installed oprofiel-1.0 from source. Now, when I want to install oprofile-gui via yum, it wants to install oprofile-0.9 as a dependent package. Is there anyway to just install oprofile-gui? Regards, Mahmood
Re: External HDD is accessable for one user only
On Saturday, January 17, 2015 9:56 PM, Hans Kristian Rosbach wrote: >And the umask of effectively means >everything gets chmodded to 777, so all permissions to everyone. O yes that was a nice answer >An umask of 0007 might possibly be more what you want to do. 0007 will create drwxrwx---0077 will create drwx-- which is what I want Many thanks. Regards,Mahmood
Re: External HDD is accessable for one user only
On Saturday, January 17, 2015 4:59 PM, Nico Kadel-Garcia wrote: >What does 'not accessible' mean? Where is the content showing up, and >what are the permissions of the mounted directory? If you have it >mounted by a hardcoded entry in /etc/fstab, show your entyr. Anyway I unmount the drive and remount for another user. Now there is a new problem and that is other users are able to read/write it! 1) The mount procedure Disk /dev/sde: 2000.4 GB, 2000365289472 bytes 255 heads, 63 sectors/track, 243197 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x2a81c1e9 Device Boot Start End Blocks Id System /dev/sde1 1 243198 1953480704 7 HPFS/NTFS [root@tiger media]# mount -t ntfs-3g -o uid=mahmood,gid=mahmood,rw,umask= /dev/sde1 /media/HDD [root@tiger media]# ls -l total 8 drwxrwxrwx. 1 mahmood mahmood 4096 Jan 17 10:19 HDD 2) With the user, mahmood, everything is fine. 3) With another user, the folder is accessible also!! [root@tiger media]# su - hadoop [hadoop@tiger ~]$ mkdir /media/HDD/hfolder [hadoop@tiger ~]$ 4) Thing is, chmod command doesn't work either [mahmood@tiger media]$ ls -l total 8 drwxrwxrwx. 1 mahmood mahmood 4096 Jan 17 12:26 HDD [mahmood@tiger media]$ chmod -R 700 /media/HDD/ [mahmood@tiger media]$ su - hadoop Password: [hadoop@tiger ~]$ mkdir /media/HDD/hfolder2 [hadoop@tiger ~]$ Isn't strange? Regards, Mahmood
External HDD is accessable for one user only
Hi,While I was logged in with USER1, I have attached an external HDD to the usb port. Everything is fine for USER1. However, when I log in with USER2, I get permission errors. How can I fix that? The OS is SL6.3 Regards, Mahmood
Re: write permission error on a shared drive
OK. I managed to solve it temporarily by adding both users to the same group and setting "chmod -R 775 /data" Regards, Mahmood On Saturday, November 29, 2014 9:49 PM, Paul Robert Marino wrote: Mahmood you will also probably need to learn about the setgid bit. On Sat, Nov 29, 2014 at 12:23 PM, Nico Kadel-Garcia wrote: > On Sat, Nov 29, 2014 at 10:56 AM, Mahmood N wrote: >> Hi >> A server and a client both run SL6.3. On server, I have exported a disk with >> the following property >> /data 192.168.1.0/24(rw,sync,no_root_squash) >> >> and on the client side, I wrote this entry in the fstab >> 192.168.1.5:/data /data nfs defaults 0 0 >> >> However on the client side, I am not able to create folders. >> >> [mahmood@client data]$ mkdir afolder >> mkdir: cannot create directory `afolder': Permission denied >> >> However, root has the write permission. >> >> [root@client data]# mkdir a >> [root@client data]# >> >> How can I grant the write permission tot he user? >> >> Regards, >> Mahmood > > You need to learn about "uid", "gid", and file system permissions. > "The user" and "the groupo" that own a file are stored, on the NFS > serrver's file system, as numbers. Those numbers are tied to group and > owner as far as the login name and login user's groups by > "/etc/passwd", "/etc/group", and lots of different network tools that > can also do that. > > If the user name on the client *has the same uid and group gid > memberships* as the server expects, then they'lll typically have > permission to write to those directories. This is much like file > ownership on a local directory. If someone else owns the directory, > *and did not allow write access to others*, others will not be able to > write there. > > In this case, I would do "ls -al /data" and see who owns it. Then I'd > look up the man pages for "chown" and "chgrp" and "chmod" to get a > handle on what you want to allow and prevent.
write permission error on a shared drive
HiA server and a client both run SL6.3. On server, I have exported a disk with the following property /data 192.168.1.0/24(rw,sync,no_root_squash) and on the client side, I wrote this entry in the fstab 192.168.1.5:/data /data nfs defaults 0 0 However on the client side, I am not able to create folders. [mahmood@client data]$ mkdir afolder mkdir: cannot create directory `afolder': Permission denied However, root has the write permission. [root@client data]# mkdir a [root@client data]# How can I grant the write permission tot he user? Regards, Mahmood
PXE boot problem at the the first step
Hi, I have stuck at the first step of diskless boot in Scietific linux! So any idea is appreciated I am using virtualBox on Windows 7 and I have installed a SL6.3 guest as the server and another guest as the diskless client. The server configs are 1) # ls /var/lib/tftpboot/ -R /var/lib/tftpboot/: menu.c32 pxelinux.0 pxelinux.cfg sl6 /var/lib/tftpboot/pxelinux.cfg: default /var/lib/tftpboot/sl6: initrd.img vmlinuz 2) # cat /var/lib/tftpboot/pxelinux.cfg/default timeout 100 default menu.c32 menu title ## PXE Boot Menu ## label 1 menu label ^1) Install Scientific Linux 6 kernel sl6/vmlinuz append initrd=sl6/initrd.img method=http://10.0.2.51/sl6 devfs=nomount label 2 menu label ^2) Boot from local drive localboot 3) # cat /etc/dnsmasq.conf no-resolv no-poll interface=eth2 domain=hpclab expand-hosts dhcp-range=10.0.2.52,10.0.2.100,static dhcp-option=42,0.0.0.0 dhcp-boot=pxelinux.0 enable-tftp tftp-root=/var/lib/tftpboot dhcp-host=08:00:27:69:73:7A,ws04,10.0.2.52 Now when I start the client, I receive this error CLIENT MAC ADDR: 08 00 27 69 73 7A GUID: EF720459-193C-4558-8C46-15FF790FCD1C PXE-E51: No DHCP or proxyDHCP offers were received As you can see below, both server and client have the same network type "Internal Network" and the same adapter "PCnet-Fast III". Please see the pictures http://i.stack.imgur.com/wapyf.jpg http://i.stack.imgur.com/XkRIc.jpg http://i.stack.imgur.com/amijN.jpg What is the problem? Regards, Mahmood View on i.stack.imgur.com Preview by Yahoo
changing primary group
Hi I changed the primary group of my user name to another on in order to access some folders of that user. However I can not access them. Why? [root@N100 mahmood]# groups mahmood mahmood : devs mahmood [root@N100 mahmood]# groups devs plotfi : devs [mahmood@N100 ~]$ ls /home/devs/tools ls: cannot access /home/devs/tools: Permission denied Regards, Mahmood
