Re: after installing ubuntu-server, HDD's are not detected in AHCI mode
On Jun 13, 2010, at 8:28 PM, scar wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > scar @ 06/13/2010 05:21 PM: >> wonder if it's related to bug #551965? > > ah, success! adding the 'partman/alignment=cylinder' boot parameter worked! > > although, i am still puzzled why this parameter was not needed in order > for server #1 to work properly... > If the drives are not the exact same geometry, that might be the cause for the difference. Its even occurred in the past where drives of the exact same "model number" were different revs, and had slightly different geometries. -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: after installing ubuntu-server, HDD's are not detected in AHCI mode
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 scar @ 06/13/2010 05:21 PM: > wonder if it's related to bug #551965? ah, success! adding the 'partman/alignment=cylinder' boot parameter worked! although, i am still puzzled why this parameter was not needed in order for server #1 to work properly... -BEGIN PGP SIGNATURE- iEYEAREIAAYFAkwVodQACgkQXhfCJNu98qAE9wCfZMxF4+Me3jl88mhI85uIhe02 q2sAoPlcg9xF9a1uNvbraplsS0yH8qOw =XiIu -END PGP SIGNATURE- -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: after installing ubuntu-server, HDD's are not detected in AHCI mode
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 scar @ 06/06/2010 11:22 PM: > perhaps it is some updated package that the installer is grabbing? i am > inclined to try the installation without network access to see what > happens installing with the network cable unplugged didn't change anything -BEGIN PGP SIGNATURE- iEYEAREIAAYFAkwVg2YACgkQXhfCJNu98qBlxwCgxDmYOPZKYwBLc4eikAFslR5p MyUAoJQretSS4twjAjjuUmmUYQB5x/3w =Rcbs -END PGP SIGNATURE- -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: after installing ubuntu-server, HDD's are not detected in AHCI mode
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 scar @ 05/15/2010 08:18 PM: > i have two identical servers with identical hardware. the servers are > sun fire x2250's with two 1 TB hard disks. on server #1, i installed > ubuntu-server a couple weekends ago. in the BIOS i configured the disks > to use AHCI mode. everything works great. i created two RAID-1 md > devices. on md0 i formatted ext4 and put /boot. on md1 i put LVM with > logical volumes for / and swap. > > then, last weekend, i did the same thing (AFAIK) for server #2. only > this time, after rebooting, the hard disks are no longer detected; the > BIOS just hangs at "auto-detecting SATA PORT 0". if i change, in the > BIOS, the disks back to IDE mode instead of AHCI, they get detected. > isn't that strange? wonder if it's related to bug #551965[1][2]? 1. https://wiki.ubuntu.com/LucidLynx/ReleaseNotes#Partition%20alignment%20changes%20may%20break%20some%20systems 2. https://bugs.launchpad.net/ubuntu/+source/partman-base/+bug/551965 -BEGIN PGP SIGNATURE- iEYEAREIAAYFAkwVdhkACgkQXhfCJNu98qASVgCgufWYTFt0nb0PiObgpQ0fuGBq Rl8An3PlYi1R/y9yKMoj+ZiH1Rm4JLoo =56t7 -END PGP SIGNATURE- -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: after installing ubuntu-server, HDD's are not detected in AHCI mode
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Ante Karamatić @ 06/06/2010 07:57 PM: > On 07.06.2010 00:42, scar wrote: > >> i am really leaning towards a bug with ubuntu. > > Well if the same setup works on other machines of the same type, except > that one, I would suspect that there is a problem with hardware. My > personal experience with Sun hardware is actually quite bad, so i I > avoid them at all costs. unfortunately, these are the servers we're stuck with. they're essentially brand-new, too, though they've been in their boxes for about a year. we have three of the same server, and the setup has worked on one of them, while the other two have exhibited this strange behavior. perhaps it is some updated package that the installer is grabbing? i am inclined to try the installation without network access to see what happens -BEGIN PGP SIGNATURE- iEYEAREIAAYFAkwMkAoACgkQXhfCJNu98qA5ogCeKcwEyPMICSOr4lbMkhksB8dg qOMAoITPYz6K++ZJDpAPtDq5Jqb40Y7l =xRio -END PGP SIGNATURE- -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: after installing ubuntu-server, HDD's are not detected in AHCI mode
On 07.06.2010 00:42, scar wrote: > i am really leaning towards a bug with ubuntu. Well if the same setup works on other machines of the same type, except that one, I would suspect that there is a problem with hardware. My personal experience with Sun hardware is actually quite bad, so i I avoid them at all costs. > i noticed something interesting in the installation, during the > partitioning. both disks initially showed up as 'free space' but, as > soon as i carved out the partitions like i did last time, they magically > showed up as raid/lvm paritions. so, something was still on the disks. > maybe i need to use dd to write zeroes to the entire surface of both disks? Deleting partitions doesn't delete anything on the disk - it just 'deletes' contents of MBR. Once you set up partitions, lvm/md will detect existing lvm/md partitions and show them. You should delete logical and raid volumes before creating new ones. -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: after installing ubuntu-server, HDD's are not detected in AHCI mode
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 i am really leaning towards a bug with ubuntu. after changing the BIOS back to IDE mode and thus detecting the disks, i booted up a livecd and proceeded to simply delete the partitions on the disks with gparted. then, rebooted and changed the BIOS back to AHCI. the disks are magically detected again. so, i go and install ubuntu-server again on a third, identical server. upon rebooting, the disks are no longer detected. the BIOS just gets stuck at 'auto-detecting SATA PORT0' i noticed something interesting in the installation, during the partitioning. both disks initially showed up as 'free space' but, as soon as i carved out the partitions like i did last time, they magically showed up as raid/lvm paritions. so, something was still on the disks. maybe i need to use dd to write zeroes to the entire surface of both disks? -BEGIN PGP SIGNATURE- iEYEAREIAAYFAkwMJF0ACgkQXhfCJNu98qC0LwCfdtzOB509AX3jKtyJYUpwYPR/ 3YIAoIuaonNbBUOcOapnCDJ1MeNJCpVy =BRx7 -END PGP SIGNATURE- -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: after installing ubuntu-server, HDD's are not detected in AHCI mode
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 this is holding up the project, so any ideas would be appreciated, even if it is just a suggestion of a better place to ask. i know it doesn't seem ubuntu-related, so i asked on the sun forums[1]. no one has helped me there either. i also asked on another random forum[2] and i got some suggestions but still no solution. thanks. 1. http://forums.sun.com/thread.jspa?threadID=5438547 2. http://www.eggxpert.com/forums/thread/624530.aspx -BEGIN PGP SIGNATURE- iEYEAREIAAYFAkv2m5YACgkQXhfCJNu98qADJgCfeG0sEawAyHc4i3Cy9Z6sXK8T zx4AoN50l9LucRIDUbaOuqCdVBYMNZzS =WkgW -END PGP SIGNATURE- -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
after installing ubuntu-server, HDD's are not detected in AHCI mode
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 i have two identical servers with identical hardware. the servers are sun fire x2250's with two 1 TB hard disks. on server #1, i installed ubuntu-server a couple weekends ago. in the BIOS i configured the disks to use AHCI mode. everything works great. i created two RAID-1 md devices. on md0 i formatted ext4 and put /boot. on md1 i put LVM with logical volumes for / and swap. then, last weekend, i did the same thing (AFAIK) for server #2. only this time, after rebooting, the hard disks are no longer detected; the BIOS just hangs at "auto-detecting SATA PORT 0". if i change, in the BIOS, the disks back to IDE mode instead of AHCI, they get detected. isn't that strange? i tried to clear and re-setup the BIOS, didn't help. when i put the disks from server #2 into server #1, server #1 doesn't detect them either. i had another pair of disks from identical server #3 that i decided to try out. again, initially, they are detected fine in AHCI mode; i go and setup ubuntu-server on them similarly to the way i did on server #1; upon rebooting, the BIOS hangs detecting the disks. -BEGIN PGP SIGNATURE- iEYEAREIAAYFAkvvZBEACgkQXhfCJNu98qAUEwCfQjVJ34TO470RlYyTM4TPsWfu WyUAoJgfD+uv/9xogEWtQEit+uJVVbRc =iYP7 -END PGP SIGNATURE- -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
