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| Who | What | When |
|---|---|---|
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ChanServ sets mode: +o toddf raptelan|work has joined #arpnetworks | [12:57] | |
| awyeah has joined #arpnetworks | [13:05] | |
| awyeah | yo | [13:06] |
| raptelan|work | hello
I got a disk space upgrade a while back, never configured to use it disklabel doesn't seem to show the space available I think there's some other step I need to run but I can't remember :( | [13:12] |
| toddf | fdisk -yi wd0 | [13:12] |
| raptelan|work | anybody know?
toddf: that will nuke my existing partition table, no? or is that okay because the partitions are actually slices within a partition? | [13:12] |
| toddf | partition table points to disklabel and disklabel is what openbsd sees. | [13:13] |
| raptelan|work | :(((( | [13:14] |
| toddf | you want the system to see the new size of the disk. re-initing the fdisk partition table updates this.
do note the offset of the openbsd partition | [13:14] |
| raptelan|work | I just ran that, and the system immediately went nonresponsive | [13:14] |
| toddf | and you're safe. just point the new openbsd partition to that same offset if the 'fdisk -yi wd0' changes it. (which it should not) | [13:15] |
| raptelan|work | well the machine's dead now :( | [13:15] |
| toddf | boot bsd.rd off the cdrom if you need to recover. typically its not nice to mess with the disk when you're using it. | [13:15] |
| raptelan|work | nice warning. | [13:16] |
| toddf | root == the power to shoot yourself in the foot. sorry if you didn't know that already. ;-) | [13:16] |
| reardencode | :- awkward | [13:20] |
| raptelan|work | toddf: I was following your instruction.
now I cannot even get a console boot prompt | [13:20] |
| toddf | you know how to boot off the cdrom, right???
thats your recovery safetynet. | [13:21] |
| raptelan|work | how? | [13:21] |
| toddf | *sigh*. | [13:21] |
| raptelan|work | I can't even get a boot prompt!
at the serial console after a hard shutdown+boot | [13:21] |
| toddf | if you had a real computer and you had inserted a cdrom, how would you do it?
certainly not from a boot> prompt | [13:21] |
| reardencode | raptelan|work: not to be a dick, but if you follow a stranger's suggestion without understanding it fully... you reap what you sew | [13:21] |
| toddf | you need vga (vnc) console for cdrom access | [13:21] |
| raptelan|work | it's not a stranger
it's an operator in #arpnetworks :[13:22] <reardencode> pardon, a stranger with an @ on his name | [13:22] |
| toddf | @up_the_irons is staff, other ops are long-time customers
that is in topic for everyone to see | [13:22] |
| raptelan|work | No way to get vnc from here - I have to tunnel way too much to get that through
I'm not trying to blame, but before saying somebody should run something that should not be run while the disk is in use, and proceeding to explain how it works and how it's safe, maybe mention that. instead of putting it off I should have just dealt with this when the space was added a while back | [13:23] |
| toddf | I honestly did not expect it to lock the system. 'best to use from bsd.rd' is an afterthought. | [13:24] |
| reardencode | raptelan|work: VNC shoudln't be that heavyweight since it's just a text session | [13:25] |
| raptelan|work | reardencode: I don't have a direct connection to ssh on the internet from my workstation | [13:25] |
| toddf | vnc is a tcp connection. not text at all. | [13:25] |
| raptelan|work | nor one I can forward x11 through
certainly don't have VNC ports open I probably could get it working but it would be insane hassle | [13:25] |
| reardencode | toddf: what I was saying is that the VNC session will show a text window, which means smaller update packets, low bandwidth
raptelan|work: ssh -D mode? | [13:26] |
| raptelan|work | I'll just do it from home tonight instead | [13:26] |
| toddf | text window is represented in vnc as graphics. everytime a char changes, it sends graphics. not sure 'smaller update packats' is what is going to happen. *shrug*. moot point in any event. | [13:26] |
| raptelan|work | reardencode: I have to ssh from my workstation, to a dev server, to another server, to another server, and only from there can I ssh to the internet (my vps or the admin console)
so getting vnc back to here would be a lot of hassle if it worked at all. | [13:27] |
| reardencode | raptelan|work: gotcha, lots of hops. | [13:27] |
| raptelan|work | and it's not urgent :)
if it was a critical server, I would have exercised a bit more caution. it's not that big a deal. | [13:27] |
| jaja | someone know well iptables here? | [13:28] |
| toddf | raptelan: since I likely won't be around when you do get the recovery access via vnc, please be aware that older fdisk's would init the openbsd partition at offset 63 but newer does it to 64 .. just be sure to adjust the offset to the old one you had and you should be fine. in theory the cdrom attached to your vps should be the one used to install the vps (unless you requested a media change) and thus the fdisk in the bsd.rd should do the ...
... right thing. | [13:30] |
| awyeah | hm
hey, any ipv6 experts - sorry - sages in here? I have a quick question. | [13:31] |
| toddf | awyeah: I have some experience (10+ years) but be aware advice I give can be considered harmful to your vps! ;-) | [13:32] |
| awyeah | ha.
It's actually not for my vps... So, I have a FreeBSD box. Which is the end point of a tunnel to he. And it is successfully connecting and routing packets from my local network. On it, I run rtadvd. And I run dhcpv6. As I understand it, when you configure router advertisements to include the 'm' and 'o' flags, clients are supposed to obtain everything except default gateway from dhcp, right? | [13:33] |
| raptelan|work | toddf: how recent was the change? The initial image was not that old, I think 4.6... | [13:34] |
| toddf | he.net has 3 subnets your tunnel router should be aware of. a /128 on your end point-to-point to a /128 on their end (single IP for the gif(4) tunnel) and a /64 you get to assign to one subnet and if you need more ask for a /48 which will then need to be allocated in chunks of /64 on individual ethernet segments.
raptelan: since then.. | [13:35] |
| awyeah | hm | [13:36] |
| toddf | raptelan: something about some modern disks hiding the fact that they have larger sector sizes and thus starting filesystems at specific offsets permits optimal read/write conditions | [13:36] |
| awyeah | The issue I'm having is that my Windows 7 box gets *3* ipv6 addresses on my he subnet.
one is from dhcpv6 because I can match it up in dhcpd.leases. | [13:36] |
| toddf | awyeah: I haven't dealt with 'm' and 'o' flags via rtadvd, nor have i dealt with dhcpv6 only rtadvd thusfar | [13:36] |
| awyeah | ah | [13:37] |
| toddf | there is an rfc for dns via rtadvd thus no need for dhcpv6 for most things | [13:37] |
| awyeah | oh? | [13:37] |
| pilgrimd | toddf: Most stuff doesn't support the rtadv options for that yet. | [13:37] |
| toddf | someone needs to write some code. in time that might be me, but for now it is not.
pilgrimd: chicken and egg. lets dance. and all the while it doesn't get implemented. I say make it possible wherever you can so people can start using it and then we can make some movement towards getting there. | [13:37] |
| awyeah | ah, so pilgrimd you're saying that Windows 7 is (incorrectly) doing both?
I mean, it's okay for the most part, since I still have proper ipv6 connectivity everywhere. Just seems like I don't need 3 addresses per host. Also, I do like dhcp because it does dynamic DNS, I like to have DNS for everything on the network... | [13:38] |
| pilgrimd | awyeah: Where did I say that? I was talking about RDNSS (what toddf mentioned) | [13:39] |
| awyeah | I guess I read what I wanted to hear ;) | [13:39] |
| pilgrimd | awyeah: In Windows, you'll have *at least* three per interface. | [13:40] |
| awyeah | oh, actually, I have 3 on my he subnet, I see that one of them is the temporary address. | [13:40] |
| pilgrimd | The local-scope address, the global unicast temporary address and the global unicast preferred address. | [13:40] |
| awyeah | Then I have one from DHCP and one that I assume is from the router advertisement message.
Then I also have the link-local | [13:40] |
| pilgrimd | Right, this is not a broken configuration.
You can use netsh to alter how Windows addresses its interfaces. | [13:41] |
| awyeah | But - hang on - I still think it's ignoring the m and o flags. | [13:41] |
| pilgrimd | IMO, it's better to just use SA and DNS client updates. | [13:42] |
| awyeah | SA? | [13:42] |
| raptelan|work | see y'all laters! | [13:42] |
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| pilgrimd | awyeah: stateless autoconfig (i.e., rtadv only) | [13:48] |
| awyeah | ah | [13:54] |
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