Discuss July 2010

discuss@lists.centos.org

242 participants
193 discussions

Update update failed on filesystem-2.4.0-3.el5.x86_64
by Emmanuel Noobadmin 01 Jul '10

01 Jul '10

I was doing a upgrade of an existing machine from 5.4 to 5.5. Everything else worked except for this rpm filesystem-2.4.0-3.el5.x86_64 It seems that it's trying to unpack the file into the CentOS DVD mount point > Error unpacking rpm package filesystem-2.4.0-3.el5.x86_64 > error: unpacking of archive failed on file /media: cpio: lsetfilecon Would it be safe to manually download the rpm then install it locally, or would that not work either? I haven't restart the machine because I'm concerned that not updating this file could mean the filesystem becomes inaccessible.

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How can binaries be different when package versions are identical? (mkfs.ext3 on CentOS 5.4)
by Aleksey Tsalolikhin 30 Jun '10

30 Jun '10

Situation: two similar servers, both with CentOS 5.4 64-bit. Making an ext3 filesystem on one takes seconds, on the other minutes. Partition Size Server 1 Server 2 1 GB 0.7 sec 0.3 sec 4 GB 2.5 sec 1.2 sec 40 GB 15 sec 13 min WTF e2fsprogs RPM is e2fsprogs-1.39-23.el5 on both systems mkfs --version reports "util-linux 2.13-pre7" on both systems mkfs -V reports the same on both systems (mke2fs 1.3 (29-May-2006) Using EXT2FS Library version 1.39) file size on mkfs and mkfs.ext3 binaries is identical However, checksum on these binaries differs across servers, and "cmp" reports files are different I took "mkfs" and "mkfs.ext3" from server 1, put them on server 2, and got an improvement: 40 GB 15 sec 3 min Just out of curiousity, I ran "rpm -V e2fsprogs" to see if rpm would pick up the difference and sure enough, it complained mkfs.ext3 changed. Both of these servers have CentOS 5.4; Server 1 was installed in Dec 2009, Server 2 in April 2010. I'd like to: (a) account for the difference in the binaries, and (b) see if something else is different that I can make the same to get the mkfs.ext3 time down to 15 sec on both systems. Solving (a) should shed light on (b). Any ideas? Best, Aleksey

6 7

Live CD problems
by drew einhorn 30 Jun '10

30 Jun '10

Hi, I'm trying to repair a remote system using the Live CD. I have VPN access to the subnet where it lives. An onsite person is booting from cd, and running a small script I provided to tweak the default firewall rule set to allow incoming ssh, and set a password for the centos user and start sshd so far so good I can remotely access the system. the problem is the live cd environment is very fragile. I need to rebuild the contents of a couple filesystems, so I need to umount them and remount them rw. If I make a mistake in a mount command instead of giving an error message and letting me try again. The system freezes and any other ssh session freezes, ahnd will not accept any more incoming ssh connections. the only way I have found to recover is have the onsite person reboot from cd and rerun the script allowing incoming ssh again. Hmm. I should try to talk the onsite person through trying something else from the console. Argghhh!!! This is more than just an annoyance. -- Drew Einhorn "You can see a lot by just looking." -- Yogi Berra

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Discuss July 2010