OpenBSD 5.8 发布 和reflash

[f5b]

难得比历史计划的5月1日/11月1日 提前10天发布。

详情看
http://www.openbsd.org/58.html

今年开始访问国外的网站包括OpenBSD的欧美镜像网站下载都非常慢，除非半夜或者早上8点之前。
BTW,gobsd.org现在非常快了，why？


顺便介绍 reflash
http://stable.rcesoftware.com/resflash/

可能是flashrd的继任者
http://www.nmedia.net/flashrd/


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resflash

Resilient OpenBSD images for flash memory

Resflash is a tool for building OpenBSD images for embedded and cloud systems in a reproducible way. Resflash exclusively uses read-only and memory-backed filesystems, and because the partitions are only written to during system upgrades (or as configured), filesystems are not subject to corruption or fsck due to power loss - and even cheap flash drives can last virtually forever. Resflash images can be written to any bootable media, flash or conventional, and make great firewalls and NAS boot drives. Resflash was written from scratch, with inspiration drawn from NanoBSD and flashrd.

Features

Read-only filesystems on all disk-backed partitions. Power can be safely lost at any time.
An easy, one-step upgrade process.
Persistent configuration changes are supported by a /cfg partition, stored either manually or on shutdown, and re-populated on boot.
Full package support using the standard pkg_* tools or at build time.
Easy failover to the previous working image in the event of a boot failure (console access required).
System requirements comparable to that of OpenBSD (1 GB flash drive recommended).
Supports amd64 and i386.
Features unique to resflash

A one-command build process, with no configuration file or sector calculations required.
An unmodified OpenBSD operating system - no custom kernels, no ramdisks.
Images can be built using only the OpenBSD distribution sets, no compiler or OpenBSD source is required.
Supports UEFI and BIOS/CSM booting. Note: UEFI boot requires 5.8-current or newer.
Branch-agnostic: Build images using -current snapshots on -stable.
Arch-agnostic: Build i386 images on amd64, or vice-versa. Note: Cross-arch builds do not support package installation at build time.
System upgrades update the MBR, biosboot(8), boot(8), and UEFI bootloader (where applicable).
Files in /etc or /var can be configured multiple ways for automatic saving: en masse, by directory, or by file (i.e. ., /etc/ssh, /var/db/dhcpd.leases).
Builds with ksh or Bash (but why?).

[czjin]

openBSD5.8我下载安装了，与其他版本还是有很大改进和提高，但最大的问题是远程不能用ssh登陆，是密码验证不能通过。不知怎么能解决？
我使用的是SSHSecureShellClient-3.2.9登陆的 提示为：

server responded"algorithm negotiation failed"
Key exchange with the remote host failed .This can happen for example if the remote host computer does not support the selected algorithms.

[acheng]

BTW,gobsd.org现在非常快了，why？

VPS的系统从OpenBSD换成了Linux。
我测试了一下，无论用FreeBSD/OpenBSD/DragonflyBSD，网络传输速率明显都要比Linux慢，而各个BSD系统间则基本没有差别。猜测应该是kvm对linux的支持更好一些吧。

[acheng]

openBSD5.8我下载安装了，与其他版本还是有很大改进和提高，但最大的问题是远程不能用ssh登陆，是密码验证不能通过。不知怎么能解决？
我使用的是SSHSecureShellClient-3.2.9登陆的 提示为：

server responded"algorithm negotiation failed"
Key exchange with the remote host failed .This can happen for example if the remote host computer does not support the selected algorithms.

没用过这个客户端。根据错误提示信息猜测是和SSH协议的加密算法支持有关。OpenBSD/OpenSSH一直在删除对一些被认为不够安全的算法的支持。可以看看客户端配置中有没有相关的配置可以调整。